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opencv/modules/videoio/src/cap_openni.cpp

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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// Intel License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of Intel Corporation may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "precomp.hpp"
#include "opencv2/core.hpp"
#include "opencv2/imgproc.hpp"
#ifdef HAVE_OPENNI
#include <queue>
#ifndef i386
# define i386 0
#endif
#ifndef __arm__
# define __arm__ 0
#endif
#ifndef _ARC
# define _ARC 0
#endif
#ifndef __APPLE__
# define __APPLE__ 0
#endif
#include "XnCppWrapper.h"
const cv::String XMLConfig =
"<OpenNI>"
"<Licenses>"
"<License vendor=\"PrimeSense\" key=\"0KOIk2JeIBYClPWVnMoRKn5cdY4=\"/>"
"</Licenses>"
"<Log writeToConsole=\"false\" writeToFile=\"false\">"
"<LogLevel value=\"3\"/>"
"<Masks>"
"<Mask name=\"ALL\" on=\"true\"/>"
"</Masks>"
"<Dumps>"
"</Dumps>"
"</Log>"
"<ProductionNodes>"
"<Node type=\"Image\" name=\"Image1\" stopOnError=\"false\">"
"<Configuration>"
"<MapOutputMode xRes=\"640\" yRes=\"480\" FPS=\"30\"/>"
"<Mirror on=\"false\"/>"
"</Configuration>"
"</Node> "
"<Node type=\"Depth\" name=\"Depth1\">"
"<Configuration>"
"<MapOutputMode xRes=\"640\" yRes=\"480\" FPS=\"30\"/>"
"<Mirror on=\"false\"/>"
"</Configuration>"
"</Node>"
"</ProductionNodes>"
"</OpenNI>\n";
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
class ApproximateSyncGrabber
{
public:
ApproximateSyncGrabber( xn::Context &_context,
xn::DepthGenerator &_depthGenerator,
xn::ImageGenerator &_imageGenerator,
int _maxBufferSize, bool _isCircleBuffer, int _maxTimeDuration ) :
context(_context), depthGenerator(_depthGenerator), imageGenerator(_imageGenerator),
maxBufferSize(_maxBufferSize), isCircleBuffer(_isCircleBuffer), maxTimeDuration(_maxTimeDuration)
{
CV_Assert( depthGenerator.IsValid() );
CV_Assert( imageGenerator.IsValid() );
}
void setMaxBufferSize( int _maxBufferSize )
{
maxBufferSize = _maxBufferSize;
}
inline int getMaxBufferSize() const { return maxBufferSize; }
void setIsCircleBuffer( bool _isCircleBuffer ) { isCircleBuffer = _isCircleBuffer; }
bool getIsCircleBuffer() const { return isCircleBuffer; }
void setMaxTimeDuration( int _maxTimeDuration ) { maxTimeDuration = _maxTimeDuration; }
int getMaxTimeDuration() const { return maxTimeDuration; }
bool grab( xn::DepthMetaData& depthMetaData,
xn::ImageMetaData& imageMetaData )
{
CV_Assert( task );
while( task->grab(depthMetaData, imageMetaData) == false )
{
task->spin();
}
return true;
}
void start()
{
CV_Assert( depthGenerator.IsValid() );
CV_Assert( imageGenerator.IsValid() );
task.reset( new ApproximateSynchronizer( *this ) );
}
void finish()
{
task.release();
}
bool isRun() const { return task != 0; }
xn::Context &context;
xn::DepthGenerator &depthGenerator;
xn::ImageGenerator &imageGenerator;
private:
ApproximateSyncGrabber(const ApproximateSyncGrabber&);
ApproximateSyncGrabber& operator=(const ApproximateSyncGrabber&);
int maxBufferSize;
bool isCircleBuffer;
int maxTimeDuration;
class ApproximateSynchronizerBase
{
public:
ApproximateSynchronizerBase( ApproximateSyncGrabber& _approxSyncGrabber ) :
approxSyncGrabber(_approxSyncGrabber), isDepthFilled(false), isImageFilled(false)
{}
virtual ~ApproximateSynchronizerBase() {}
virtual bool isSpinContinue() const = 0;
virtual void pushDepthMetaData( xn::DepthMetaData& depthMetaData ) = 0;
virtual void pushImageMetaData( xn::ImageMetaData& imageMetaData ) = 0;
virtual bool popDepthMetaData( xn::DepthMetaData& depthMetaData ) = 0;
virtual bool popImageMetaData( xn::ImageMetaData& imageMetaData ) = 0;
void spin()
{
while(isSpinContinue() == true)
{
XnStatus status = approxSyncGrabber.context.WaitAnyUpdateAll();
if( status != XN_STATUS_OK )
continue;
//xn::DepthMetaData depth;
//xn::ImageMetaData image;
approxSyncGrabber.depthGenerator.GetMetaData(depth);
approxSyncGrabber.imageGenerator.GetMetaData(image);
if( depth.Data() && depth.IsDataNew() )
pushDepthMetaData( depth );
if( image.Data() && image.IsDataNew() )
pushImageMetaData( image );
}
}
virtual bool grab( xn::DepthMetaData& depthMetaData,
xn::ImageMetaData& imageMetaData )
{
for(;;)
{
if( !isDepthFilled )
isDepthFilled = popDepthMetaData(depth);
if( !isImageFilled )
isImageFilled = popImageMetaData(image);
if( !isDepthFilled || !isImageFilled )
break;
double timeDiff = 1e-3 * std::abs(static_cast<double>(depth.Timestamp()) - static_cast<double>(image.Timestamp()));
if( timeDiff <= approxSyncGrabber.maxTimeDuration )
{
depthMetaData.InitFrom(depth);
imageMetaData.InitFrom(image);
isDepthFilled = isImageFilled = false;
return true;
}
else
{
if( depth.Timestamp() < image.Timestamp() )
isDepthFilled = false;
else
isImageFilled = false;
}
}
return false;
}
protected:
ApproximateSyncGrabber& approxSyncGrabber;
xn::DepthMetaData depth;
xn::ImageMetaData image;
bool isDepthFilled;
bool isImageFilled;
};
// If there isn't TBB the synchronization will be executed in the main thread.
class ApproximateSynchronizer: public ApproximateSynchronizerBase
{
public:
ApproximateSynchronizer( ApproximateSyncGrabber& _approxSyncGrabber ) :
ApproximateSynchronizerBase(_approxSyncGrabber)
{}
virtual bool isSpinContinue() const CV_OVERRIDE
{
int maxBufferSize = approxSyncGrabber.getMaxBufferSize();
return (maxBufferSize <= 0) || (static_cast<int>(depthQueue.size()) < maxBufferSize &&
static_cast<int>(imageQueue.size()) < maxBufferSize); // "<" to may push
}
virtual inline void pushDepthMetaData( xn::DepthMetaData& depthMetaData ) CV_OVERRIDE
{
cv::Ptr<xn::DepthMetaData> depthPtr = cv::makePtr<xn::DepthMetaData>();
depthPtr->CopyFrom(depthMetaData);
depthQueue.push(depthPtr);
}
virtual inline void pushImageMetaData( xn::ImageMetaData& imageMetaData ) CV_OVERRIDE
{
cv::Ptr<xn::ImageMetaData> imagePtr = cv::makePtr<xn::ImageMetaData>();
imagePtr->CopyFrom(imageMetaData);
imageQueue.push(imagePtr);
}
virtual inline bool popDepthMetaData( xn::DepthMetaData& depthMetaData ) CV_OVERRIDE
{
if( depthQueue.empty() )
return false;
depthMetaData.CopyFrom(*depthQueue.front());
depthQueue.pop();
return true;
}
virtual inline bool popImageMetaData( xn::ImageMetaData& imageMetaData ) CV_OVERRIDE
{
if( imageQueue.empty() )
return false;
imageMetaData.CopyFrom(*imageQueue.front());
imageQueue.pop();
return true;
}
private:
std::queue<cv::Ptr<xn::DepthMetaData> > depthQueue;
std::queue<cv::Ptr<xn::ImageMetaData> > imageQueue;
};
cv::Ptr<ApproximateSynchronizer> task;
};
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
class CvCapture_OpenNI : public CvCapture
{
public:
enum { DEVICE_DEFAULT=0, DEVICE_MS_KINECT=0, DEVICE_ASUS_XTION=1, DEVICE_MAX=1 };
static const int INVALID_PIXEL_VAL = 0;
static const int INVALID_COORDINATE_VAL = 0;
static const int DEFAULT_MAX_BUFFER_SIZE = 2;
static const int DEFAULT_IS_CIRCLE_BUFFER = 0;
static const int DEFAULT_MAX_TIME_DURATION = 20;
CvCapture_OpenNI(int index=0);
CvCapture_OpenNI(const char * filename);
virtual ~CvCapture_OpenNI();
virtual double getProperty(int propIdx) const CV_OVERRIDE;
virtual bool setProperty(int probIdx, double propVal) CV_OVERRIDE;
virtual bool grabFrame() CV_OVERRIDE;
virtual IplImage* retrieveFrame(int outputType) CV_OVERRIDE;
bool isOpened() const;
protected:
struct OutputMap
{
public:
cv::Mat mat;
IplImage* getIplImagePtr();
private:
IplImage iplHeader;
};
static const int outputMapsTypesCount = 7;
static XnMapOutputMode defaultMapOutputMode();
IplImage* retrieveDepthMap();
IplImage* retrievePointCloudMap();
IplImage* retrieveDisparityMap();
IplImage* retrieveDisparityMap_32F();
IplImage* retrieveValidDepthMask();
IplImage* retrieveBGRImage();
IplImage* retrieveGrayImage();
bool readCamerasParams();
double getDepthGeneratorProperty(int propIdx) const;
bool setDepthGeneratorProperty(int propIdx, double propVal);
double getImageGeneratorProperty(int propIdx) const;
bool setImageGeneratorProperty(int propIdx, double propVal);
double getCommonProperty(int propIdx) const;
bool setCommonProperty(int propIdx, double propVal);
// OpenNI context
xn::Context context;
bool isContextOpened;
xn::ProductionNode productionNode;
// Data generators with its metadata
xn::DepthGenerator depthGenerator;
xn::DepthMetaData depthMetaData;
xn::ImageGenerator imageGenerator;
xn::ImageMetaData imageMetaData;
int maxBufferSize, maxTimeDuration; // for approx sync
bool isCircleBuffer;
cv::Ptr<ApproximateSyncGrabber> approxSyncGrabber;
// Cameras settings:
// TODO find in OpenNI function to convert z->disparity and remove fields "baseline" and depthFocalLength_VGA
// Distance between IR projector and IR camera (in meters)
XnDouble baseline;
// Focal length for the IR camera in VGA resolution (in pixels)
XnUInt64 depthFocalLength_VGA;
// The value for shadow (occluded pixels)
XnUInt64 shadowValue;
// The value for pixels without a valid disparity measurement
XnUInt64 noSampleValue;
std::vector<OutputMap> outputMaps;
};
IplImage* CvCapture_OpenNI::OutputMap::getIplImagePtr()
{
if( mat.empty() )
return 0;
iplHeader = cvIplImage(mat);
return &iplHeader;
}
bool CvCapture_OpenNI::isOpened() const
{
return isContextOpened;
}
XnMapOutputMode CvCapture_OpenNI::defaultMapOutputMode()
{
XnMapOutputMode mode;
mode.nXRes = XN_VGA_X_RES;
mode.nYRes = XN_VGA_Y_RES;
mode.nFPS = 30;
return mode;
}
CvCapture_OpenNI::CvCapture_OpenNI( int index )
{
int deviceType = DEVICE_DEFAULT;
XnStatus status;
isContextOpened = false;
maxBufferSize = DEFAULT_MAX_BUFFER_SIZE;
isCircleBuffer = DEFAULT_IS_CIRCLE_BUFFER;
maxTimeDuration = DEFAULT_MAX_TIME_DURATION;
if( index >= 10 )
{
deviceType = index / 10;
index %= 10;
}
if( deviceType > DEVICE_MAX )
return;
// Initialize and configure the context.
status = context.Init();
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to initialize the context: %s\n", xnGetStatusString(status));
return;
}
// Find devices
xn::NodeInfoList devicesList;
status = context.EnumerateProductionTrees( XN_NODE_TYPE_DEVICE, NULL, devicesList, 0 );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to enumerate production trees: %s\n", xnGetStatusString(status));
return;
}
// Chose device according to index
xn::NodeInfoList::Iterator it = devicesList.Begin();
for( int i = 0; i < index && it!=devicesList.End(); ++i ) it++;
if ( it == devicesList.End() )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed device with index %d\n", index);
return;
}
xn::NodeInfo deviceNode = *it;
status = context.CreateProductionTree( deviceNode, productionNode );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to create production tree: %s\n", xnGetStatusString(status));
return;
}
xn::ScriptNode scriptNode;
status = context.RunXmlScript( XMLConfig.c_str(), scriptNode );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to run xml script: %s\n", xnGetStatusString(status));
return;
}
// Associate generators with context.
// enumerate the nodes to find if depth generator is present
xn::NodeInfoList depthList;
status = context.EnumerateExistingNodes( depthList, XN_NODE_TYPE_DEPTH );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to enumerate depth generators: %s\n", xnGetStatusString(status));
return;
}
if( depthList.IsEmpty() )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : The device doesn't have depth generator. Such devices aren't supported now.\n");
return;
}
status = depthGenerator.Create( context );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to create depth generator: %s\n", xnGetStatusString(status));
return;
}
// enumerate the nodes to find if image generator is present
xn::NodeInfoList imageList;
status = context.EnumerateExistingNodes( imageList, XN_NODE_TYPE_IMAGE );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to enumerate image generators: %s\n", xnGetStatusString(status));
return;
}
if( !imageList.IsEmpty() )
{
status = imageGenerator.Create( context );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to create image generator: %s\n", xnGetStatusString(status));
return;
}
}
// Set map output mode.
if( depthGenerator.IsValid() )
{
CV_DbgAssert( depthGenerator.SetMapOutputMode(defaultMapOutputMode()) == XN_STATUS_OK ); // xn::DepthGenerator supports VGA only! (Jan 2011)
}
if( imageGenerator.IsValid() )
{
CV_DbgAssert( imageGenerator.SetMapOutputMode(defaultMapOutputMode()) == XN_STATUS_OK );
}
if( deviceType == DEVICE_ASUS_XTION )
{
//ps/asus specific
imageGenerator.SetIntProperty("InputFormat", 1 /*XN_IO_IMAGE_FORMAT_YUV422*/);
imageGenerator.SetPixelFormat(XN_PIXEL_FORMAT_RGB24);
depthGenerator.SetIntProperty("RegistrationType", 1 /*XN_PROCESSING_HARDWARE*/);
}
// Start generating data.
status = context.StartGeneratingAll();
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to start generating OpenNI data: %s\n", xnGetStatusString(status));
return;
}
if( !readCamerasParams() )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Could not read cameras parameters\n");
return;
}
outputMaps.resize( outputMapsTypesCount );
isContextOpened = true;
setProperty(CV_CAP_PROP_OPENNI_REGISTRATION, 1.0);
}
CvCapture_OpenNI::CvCapture_OpenNI(const char * filename)
{
XnStatus status;
isContextOpened = false;
maxBufferSize = DEFAULT_MAX_BUFFER_SIZE;
isCircleBuffer = DEFAULT_IS_CIRCLE_BUFFER;
maxTimeDuration = DEFAULT_MAX_TIME_DURATION;
// Initialize and configure the context.
status = context.Init();
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to initialize the context: %s\n", xnGetStatusString(status));
return;
}
// Open file
status = context.OpenFileRecording( filename, productionNode );
if( status != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Failed to open input file (%s): %s\n", filename, xnGetStatusString(status));
return;
}
context.FindExistingNode( XN_NODE_TYPE_DEPTH, depthGenerator );
context.FindExistingNode( XN_NODE_TYPE_IMAGE, imageGenerator );
if( !readCamerasParams() )
{
fprintf(stderr, "CvCapture_OpenNI::CvCapture_OpenNI : Could not read cameras parameters\n");
return;
}
outputMaps.resize( outputMapsTypesCount );
isContextOpened = true;
}
CvCapture_OpenNI::~CvCapture_OpenNI()
{
context.StopGeneratingAll();
context.Release();
}
bool CvCapture_OpenNI::readCamerasParams()
{
XnDouble pixelSize = 0;
if( depthGenerator.GetRealProperty( "ZPPS", pixelSize ) != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::readCamerasParams : Could not read pixel size!\n");
return false;
}
// pixel size @ VGA = pixel size @ SXGA x 2
pixelSize *= 2.0; // in mm
// focal length of IR camera in pixels for VGA resolution
XnUInt64 zeroPlanDistance; // in mm
if( depthGenerator.GetIntProperty( "ZPD", zeroPlanDistance ) != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::readCamerasParams : Could not read virtual plane distance!\n");
return false;
}
if( depthGenerator.GetRealProperty( "LDDIS", baseline ) != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::readCamerasParams : Could not read base line!\n");
return false;
}
// baseline from cm -> mm
baseline *= 10;
// focal length from mm -> pixels (valid for 640x480)
depthFocalLength_VGA = (XnUInt64)((double)zeroPlanDistance / (double)pixelSize);
if( depthGenerator.GetIntProperty( "ShadowValue", shadowValue ) != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::readCamerasParams : Could not read property \"ShadowValue\"!\n");
return false;
}
if( depthGenerator.GetIntProperty("NoSampleValue", noSampleValue ) != XN_STATUS_OK )
{
fprintf(stderr, "CvCapture_OpenNI::readCamerasParams : Could not read property \"NoSampleValue\"!\n");
return false;
}
return true;
}
double CvCapture_OpenNI::getProperty( int propIdx ) const
{
double propValue = 0;
if( isOpened() )
{
int purePropIdx = propIdx & ~CV_CAP_OPENNI_GENERATORS_MASK;
if( (propIdx & CV_CAP_OPENNI_GENERATORS_MASK) == CV_CAP_OPENNI_IMAGE_GENERATOR )
{
propValue = getImageGeneratorProperty( purePropIdx );
}
else if( (propIdx & CV_CAP_OPENNI_GENERATORS_MASK) == CV_CAP_OPENNI_DEPTH_GENERATOR )
{
propValue = getDepthGeneratorProperty( purePropIdx );
}
else
{
propValue = getCommonProperty( purePropIdx );
}
}
return propValue;
}
bool CvCapture_OpenNI::setProperty( int propIdx, double propValue )
{
bool isSet = false;
if( isOpened() )
{
int purePropIdx = propIdx & ~CV_CAP_OPENNI_GENERATORS_MASK;
if( (propIdx & CV_CAP_OPENNI_GENERATORS_MASK) == CV_CAP_OPENNI_IMAGE_GENERATOR )
{
isSet = setImageGeneratorProperty( purePropIdx, propValue );
}
else if( (propIdx & CV_CAP_OPENNI_GENERATORS_MASK) == CV_CAP_OPENNI_DEPTH_GENERATOR )
{
isSet = setDepthGeneratorProperty( purePropIdx, propValue );
}
else
{
isSet = setCommonProperty( purePropIdx, propValue );
}
}
return isSet;
}
double CvCapture_OpenNI::getCommonProperty( int propIdx ) const
{
double propValue = 0;
switch( propIdx )
{
// There is a set of properties that correspond to depth generator by default
// (is they are pass without particular generator flag). Two reasons of this:
// 1) We can assume that depth generator is the main one for depth sensor.
// 2) In the initial vertions of OpenNI integration to OpenCV the value of
// flag CV_CAP_OPENNI_DEPTH_GENERATOR was 0 (it isn't zero now).
case CV_CAP_PROP_OPENNI_GENERATOR_PRESENT :
case CV_CAP_PROP_FRAME_WIDTH :
case CV_CAP_PROP_FRAME_HEIGHT :
case CV_CAP_PROP_FPS :
case CV_CAP_PROP_OPENNI_FRAME_MAX_DEPTH :
case CV_CAP_PROP_OPENNI_BASELINE :
case CV_CAP_PROP_OPENNI_FOCAL_LENGTH :
case CV_CAP_PROP_OPENNI_REGISTRATION :
propValue = getDepthGeneratorProperty( propIdx );
break;
case CV_CAP_PROP_OPENNI_APPROX_FRAME_SYNC :
propValue = !approxSyncGrabber.empty() && approxSyncGrabber->isRun() ? 1. : 0.;
break;
case CV_CAP_PROP_OPENNI_MAX_BUFFER_SIZE :
propValue = maxBufferSize;
break;
case CV_CAP_PROP_OPENNI_CIRCLE_BUFFER :
propValue = isCircleBuffer ? 1. : 0.;
break;
case CV_CAP_PROP_OPENNI_MAX_TIME_DURATION :
propValue = maxTimeDuration;
break;
default :
CV_Error( CV_StsBadArg, cv::format("Such parameter (propIdx=%d) isn't supported for getting.\n", propIdx) );
}
return propValue;
}
bool CvCapture_OpenNI::setCommonProperty( int propIdx, double propValue )
{
bool isSet = false;
switch( propIdx )
{
// There is a set of properties that correspond to depth generator by default
// (is they are pass without particular generator flag).
case CV_CAP_PROP_OPENNI_REGISTRATION:
isSet = setDepthGeneratorProperty( propIdx, propValue );
break;
case CV_CAP_PROP_OPENNI_APPROX_FRAME_SYNC :
if( propValue && depthGenerator.IsValid() && imageGenerator.IsValid() )
{
// start synchronization
if( approxSyncGrabber.empty() )
{
approxSyncGrabber.reset(new ApproximateSyncGrabber( context, depthGenerator, imageGenerator, maxBufferSize, isCircleBuffer, maxTimeDuration ));
}
else
{
approxSyncGrabber->finish();
// update params
approxSyncGrabber->setMaxBufferSize(maxBufferSize);
approxSyncGrabber->setIsCircleBuffer(isCircleBuffer);
approxSyncGrabber->setMaxTimeDuration(maxTimeDuration);
}
approxSyncGrabber->start();
}
else if( !propValue && !approxSyncGrabber.empty() )
{
// finish synchronization
approxSyncGrabber->finish();
}
break;
case CV_CAP_PROP_OPENNI_MAX_BUFFER_SIZE :
maxBufferSize = cvRound(propValue);
if( !approxSyncGrabber.empty() )
approxSyncGrabber->setMaxBufferSize(maxBufferSize);
break;
case CV_CAP_PROP_OPENNI_CIRCLE_BUFFER :
if( !approxSyncGrabber.empty() )
approxSyncGrabber->setIsCircleBuffer(isCircleBuffer);
break;
case CV_CAP_PROP_OPENNI_MAX_TIME_DURATION :
maxTimeDuration = cvRound(propValue);
if( !approxSyncGrabber.empty() )
approxSyncGrabber->setMaxTimeDuration(maxTimeDuration);
break;
default:
CV_Error( CV_StsBadArg, cv::format("Such parameter (propIdx=%d) isn't supported for setting.\n", propIdx) );
}
return isSet;
}
double CvCapture_OpenNI::getDepthGeneratorProperty( int propIdx ) const
{
double propValue = 0;
if( !depthGenerator.IsValid() )
return propValue;
XnMapOutputMode mode;
switch( propIdx )
{
case CV_CAP_PROP_OPENNI_GENERATOR_PRESENT :
CV_DbgAssert( depthGenerator.IsValid() );
propValue = 1.;
break;
case CV_CAP_PROP_FRAME_WIDTH :
if( depthGenerator.GetMapOutputMode(mode) == XN_STATUS_OK )
propValue = mode.nXRes;
break;
case CV_CAP_PROP_FRAME_HEIGHT :
if( depthGenerator.GetMapOutputMode(mode) == XN_STATUS_OK )
propValue = mode.nYRes;
break;
case CV_CAP_PROP_FPS :
if( depthGenerator.GetMapOutputMode(mode) == XN_STATUS_OK )
propValue = mode.nFPS;
break;
case CV_CAP_PROP_OPENNI_FRAME_MAX_DEPTH :
propValue = depthGenerator.GetDeviceMaxDepth();
break;
case CV_CAP_PROP_OPENNI_BASELINE :
propValue = baseline;
break;
case CV_CAP_PROP_OPENNI_FOCAL_LENGTH :
propValue = (double)depthFocalLength_VGA;
break;
case CV_CAP_PROP_OPENNI_REGISTRATION :
propValue = depthGenerator.GetAlternativeViewPointCap().IsViewPointAs(const_cast<CvCapture_OpenNI *>(this)->imageGenerator) ? 1.0 : 0.0;
break;
case CV_CAP_PROP_POS_MSEC :
propValue = (double)depthGenerator.GetTimestamp();
break;
case CV_CAP_PROP_POS_FRAMES :
propValue = depthGenerator.GetFrameID();
break;
default :
CV_Error( CV_StsBadArg, cv::format("Depth generator does not support such parameter (propIdx=%d) for getting.\n", propIdx) );
}
return propValue;
}
bool CvCapture_OpenNI::setDepthGeneratorProperty( int propIdx, double propValue )
{
bool isSet = false;
CV_Assert( depthGenerator.IsValid() );
switch( propIdx )
{
case CV_CAP_PROP_OPENNI_REGISTRATION:
{
if( propValue != 0.0 ) // "on"
{
// if there isn't image generator (i.e. ASUS XtionPro doesn't have it)
// then the property isn't available
if( imageGenerator.IsValid() )
{
if( !depthGenerator.GetAlternativeViewPointCap().IsViewPointAs(imageGenerator) )
{
if( depthGenerator.GetAlternativeViewPointCap().IsViewPointSupported(imageGenerator) )
{
XnStatus status = depthGenerator.GetAlternativeViewPointCap().SetViewPoint(imageGenerator);
if( status != XN_STATUS_OK )
fprintf(stderr, "CvCapture_OpenNI::setDepthGeneratorProperty : %s\n", xnGetStatusString(status));
else
isSet = true;
}
else
fprintf(stderr, "CvCapture_OpenNI::setDepthGeneratorProperty : Unsupported viewpoint.\n");
}
else
isSet = true;
}
}
else // "off"
{
XnStatus status = depthGenerator.GetAlternativeViewPointCap().ResetViewPoint();
if( status != XN_STATUS_OK )
fprintf(stderr, "CvCapture_OpenNI::setDepthGeneratorProperty : %s\n", xnGetStatusString(status));
else
isSet = true;
}
}
break;
default:
CV_Error( CV_StsBadArg, cv::format("Depth generator does not support such parameter (propIdx=%d) for setting.\n", propIdx) );
}
return isSet;
}
double CvCapture_OpenNI::getImageGeneratorProperty( int propIdx ) const
{
double propValue = 0.;
if( !imageGenerator.IsValid() )
return propValue;
XnMapOutputMode mode;
switch( propIdx )
{
case CV_CAP_PROP_OPENNI_GENERATOR_PRESENT :
CV_DbgAssert( imageGenerator.IsValid() );
propValue = 1.;
break;
case CV_CAP_PROP_FRAME_WIDTH :
if( imageGenerator.GetMapOutputMode(mode) == XN_STATUS_OK )
propValue = mode.nXRes;
break;
case CV_CAP_PROP_FRAME_HEIGHT :
if( imageGenerator.GetMapOutputMode(mode) == XN_STATUS_OK )
propValue = mode.nYRes;
break;
case CV_CAP_PROP_FPS :
if( imageGenerator.GetMapOutputMode(mode) == XN_STATUS_OK )
propValue = mode.nFPS;
break;
case CV_CAP_PROP_POS_MSEC :
propValue = (double)imageGenerator.GetTimestamp();
break;
case CV_CAP_PROP_POS_FRAMES :
propValue = (double)imageGenerator.GetFrameID();
break;
default :
CV_Error( CV_StsBadArg, cv::format("Image generator does not support such parameter (propIdx=%d) for getting.\n", propIdx) );
}
return propValue;
}
bool CvCapture_OpenNI::setImageGeneratorProperty( int propIdx, double propValue )
{
bool isSet = false;
if( !imageGenerator.IsValid() )
return isSet;
switch( propIdx )
{
case CV_CAP_PROP_OPENNI_OUTPUT_MODE :
{
XnMapOutputMode mode;
switch( cvRound(propValue) )
{
case CV_CAP_OPENNI_VGA_30HZ :
mode.nXRes = XN_VGA_X_RES;
mode.nYRes = XN_VGA_Y_RES;
mode.nFPS = 30;
break;
case CV_CAP_OPENNI_SXGA_15HZ :
mode.nXRes = XN_SXGA_X_RES;
mode.nYRes = XN_SXGA_Y_RES;
mode.nFPS = 15;
break;
case CV_CAP_OPENNI_SXGA_30HZ :
mode.nXRes = XN_SXGA_X_RES;
mode.nYRes = XN_SXGA_Y_RES;
mode.nFPS = 30;
break;
case CV_CAP_OPENNI_QVGA_30HZ :
mode.nXRes = XN_QVGA_X_RES;
mode.nYRes = XN_QVGA_Y_RES;
mode.nFPS = 30;
break;
case CV_CAP_OPENNI_QVGA_60HZ :
mode.nXRes = XN_QVGA_X_RES;
mode.nYRes = XN_QVGA_Y_RES;
mode.nFPS = 60;
break;
default :
CV_Error( CV_StsBadArg, "Unsupported image generator output mode.\n");
}
XnStatus status = imageGenerator.SetMapOutputMode( mode );
if( status != XN_STATUS_OK )
fprintf(stderr, "CvCapture_OpenNI::setImageGeneratorProperty : %s\n", xnGetStatusString(status));
else
isSet = true;
break;
}
default:
CV_Error( CV_StsBadArg, cv::format("Image generator does not support such parameter (propIdx=%d) for setting.\n", propIdx) );
}
return isSet;
}
bool CvCapture_OpenNI::grabFrame()
{
if( !isOpened() )
return false;
bool isGrabbed = false;
if( !approxSyncGrabber.empty() && approxSyncGrabber->isRun() )
{
isGrabbed = approxSyncGrabber->grab( depthMetaData, imageMetaData );
}
else
{
XnStatus status = context.WaitAndUpdateAll();
if( status != XN_STATUS_OK )
return false;
if( depthGenerator.IsValid() )
depthGenerator.GetMetaData( depthMetaData );
if( imageGenerator.IsValid() )
imageGenerator.GetMetaData( imageMetaData );
isGrabbed = true;
}
return isGrabbed;
}
inline void getDepthMapFromMetaData( const xn::DepthMetaData& depthMetaData, cv::Mat& depthMap, XnUInt64 noSampleValue, XnUInt64 shadowValue )
{
int cols = depthMetaData.XRes();
int rows = depthMetaData.YRes();
depthMap.create( rows, cols, CV_16UC1 );
const XnDepthPixel* pDepthMap = depthMetaData.Data();
// CV_Assert( sizeof(unsigned short) == sizeof(XnDepthPixel) );
memcpy( depthMap.data, pDepthMap, cols*rows*sizeof(XnDepthPixel) );
cv::Mat badMask = (depthMap == (double)noSampleValue) | (depthMap == (double)shadowValue) | (depthMap == 0);
// mask the pixels with invalid depth
depthMap.setTo( cv::Scalar::all( CvCapture_OpenNI::INVALID_PIXEL_VAL ), badMask );
}
IplImage* CvCapture_OpenNI::retrieveDepthMap()
{
if( !depthMetaData.Data() )
return 0;
getDepthMapFromMetaData( depthMetaData, outputMaps[CV_CAP_OPENNI_DEPTH_MAP].mat, noSampleValue, shadowValue );
return outputMaps[CV_CAP_OPENNI_DEPTH_MAP].getIplImagePtr();
}
IplImage* CvCapture_OpenNI::retrievePointCloudMap()
{
if( !depthMetaData.Data() )
return 0;
cv::Mat depth;
getDepthMapFromMetaData( depthMetaData, depth, noSampleValue, shadowValue );
const int badPoint = INVALID_PIXEL_VAL;
const float badCoord = INVALID_COORDINATE_VAL;
int cols = depthMetaData.XRes(), rows = depthMetaData.YRes();
cv::Mat pointCloud_XYZ( rows, cols, CV_32FC3, cv::Scalar::all(badPoint) );
std::vector<XnPoint3D> proj(cols*rows);
std::vector<XnPoint3D> real(cols*rows);
for( int y = 0; y < rows; y++ )
{
for( int x = 0; x < cols; x++ )
{
int ind = y*cols+x;
proj[ind].X = (float)x;
proj[ind].Y = (float)y;
proj[ind].Z = depth.at<unsigned short>(y, x);
}
}
depthGenerator.ConvertProjectiveToRealWorld(cols*rows, &proj.front(), &real.front());
for( int y = 0; y < rows; y++ )
{
for( int x = 0; x < cols; x++ )
{
// Check for invalid measurements
if( depth.at<unsigned short>(y, x) == badPoint ) // not valid
pointCloud_XYZ.at<cv::Point3f>(y,x) = cv::Point3f( badCoord, badCoord, badCoord );
else
{
int ind = y*cols+x;
pointCloud_XYZ.at<cv::Point3f>(y,x) = cv::Point3f( real[ind].X*0.001f, real[ind].Y*0.001f, real[ind].Z*0.001f); // from mm to meters
}
}
}
outputMaps[CV_CAP_OPENNI_POINT_CLOUD_MAP].mat = pointCloud_XYZ;
return outputMaps[CV_CAP_OPENNI_POINT_CLOUD_MAP].getIplImagePtr();
}
static void computeDisparity_32F( const xn::DepthMetaData& depthMetaData, cv::Mat& disp, XnDouble baseline, XnUInt64 F,
XnUInt64 noSampleValue, XnUInt64 shadowValue )
{
cv::Mat depth;
getDepthMapFromMetaData( depthMetaData, depth, noSampleValue, shadowValue );
CV_Assert( depth.type() == CV_16UC1 );
// disparity = baseline * F / z;
float mult = (float)(baseline /*mm*/ * F /*pixels*/);
disp.create( depth.size(), CV_32FC1);
disp = cv::Scalar::all( CvCapture_OpenNI::INVALID_PIXEL_VAL );
for( int y = 0; y < disp.rows; y++ )
{
for( int x = 0; x < disp.cols; x++ )
{
unsigned short curDepth = depth.at<unsigned short>(y,x);
if( curDepth != CvCapture_OpenNI::INVALID_PIXEL_VAL )
disp.at<float>(y,x) = mult / curDepth;
}
}
}
IplImage* CvCapture_OpenNI::retrieveDisparityMap()
{
if( !depthMetaData.Data() )
return 0;
cv::Mat disp32;
computeDisparity_32F( depthMetaData, disp32, baseline, depthFocalLength_VGA, noSampleValue, shadowValue );
disp32.convertTo( outputMaps[CV_CAP_OPENNI_DISPARITY_MAP].mat, CV_8UC1 );
return outputMaps[CV_CAP_OPENNI_DISPARITY_MAP].getIplImagePtr();
}
IplImage* CvCapture_OpenNI::retrieveDisparityMap_32F()
{
if( !depthMetaData.Data() )
return 0;
computeDisparity_32F( depthMetaData, outputMaps[CV_CAP_OPENNI_DISPARITY_MAP_32F].mat, baseline, depthFocalLength_VGA, noSampleValue, shadowValue );
return outputMaps[CV_CAP_OPENNI_DISPARITY_MAP_32F].getIplImagePtr();
}
IplImage* CvCapture_OpenNI::retrieveValidDepthMask()
{
if( !depthMetaData.Data() )
return 0;
cv::Mat depth;
getDepthMapFromMetaData( depthMetaData, depth, noSampleValue, shadowValue );
outputMaps[CV_CAP_OPENNI_VALID_DEPTH_MASK].mat = depth != CvCapture_OpenNI::INVALID_PIXEL_VAL;
return outputMaps[CV_CAP_OPENNI_VALID_DEPTH_MASK].getIplImagePtr();
}
inline void getBGRImageFromMetaData( const xn::ImageMetaData& imageMetaData, cv::Mat& bgrImage )
{
if( imageMetaData.PixelFormat() != XN_PIXEL_FORMAT_RGB24 )
CV_Error( CV_StsUnsupportedFormat, "Unsupported format of grabbed image\n" );
cv::Mat rgbImage( imageMetaData.YRes(), imageMetaData.XRes(), CV_8UC3 );
const XnRGB24Pixel* pRgbImage = imageMetaData.RGB24Data();
// CV_Assert( 3*sizeof(uchar) == sizeof(XnRGB24Pixel) );
memcpy( rgbImage.data, pRgbImage, rgbImage.total()*sizeof(XnRGB24Pixel) );
cv::cvtColor( rgbImage, bgrImage, CV_RGB2BGR );
}
IplImage* CvCapture_OpenNI::retrieveBGRImage()
{
if( !imageMetaData.Data() )
return 0;
getBGRImageFromMetaData( imageMetaData, outputMaps[CV_CAP_OPENNI_BGR_IMAGE].mat );
return outputMaps[CV_CAP_OPENNI_BGR_IMAGE].getIplImagePtr();
}
IplImage* CvCapture_OpenNI::retrieveGrayImage()
{
if( !imageMetaData.Data() )
return 0;
CV_Assert( imageMetaData.BytesPerPixel() == 3 ); // RGB
cv::Mat rgbImage;
getBGRImageFromMetaData( imageMetaData, rgbImage );
cv::cvtColor( rgbImage, outputMaps[CV_CAP_OPENNI_GRAY_IMAGE].mat, CV_BGR2GRAY );
return outputMaps[CV_CAP_OPENNI_GRAY_IMAGE].getIplImagePtr();
}
IplImage* CvCapture_OpenNI::retrieveFrame( int outputType )
{
IplImage* image = 0;
CV_Assert( outputType < outputMapsTypesCount && outputType >= 0);
if( outputType == CV_CAP_OPENNI_DEPTH_MAP )
{
image = retrieveDepthMap();
}
else if( outputType == CV_CAP_OPENNI_POINT_CLOUD_MAP )
{
image = retrievePointCloudMap();
}
else if( outputType == CV_CAP_OPENNI_DISPARITY_MAP )
{
image = retrieveDisparityMap();
}
else if( outputType == CV_CAP_OPENNI_DISPARITY_MAP_32F )
{
image = retrieveDisparityMap_32F();
}
else if( outputType == CV_CAP_OPENNI_VALID_DEPTH_MASK )
{
image = retrieveValidDepthMask();
}
else if( outputType == CV_CAP_OPENNI_BGR_IMAGE )
{
image = retrieveBGRImage();
}
else if( outputType == CV_CAP_OPENNI_GRAY_IMAGE )
{
image = retrieveGrayImage();
}
return image;
}
CvCapture* cvCreateCameraCapture_OpenNI( int index )
{
CvCapture_OpenNI* capture = new CvCapture_OpenNI( index );
if( capture->isOpened() )
return capture;
delete capture;
return 0;
}
CvCapture* cvCreateFileCapture_OpenNI( const char* filename )
{
CvCapture_OpenNI* capture = new CvCapture_OpenNI( filename );
if( capture->isOpened() )
return capture;
delete capture;
return 0;
}
#endif