OpenNI2关于不能显示depth image问题

来源:互联网 发布:易语言微信机器人源码 编辑:程序博客网 时间:2024/05/23 13:45

我们都知道OpenNI2与OpenCV可以通过Kinect获取深度与彩色图像。

但区别是OpenCV更强大满足需求更多,但是只能一帧一帧的保存。

而OpenNI2有一个videostream对象可以以视频类型保存数据。


因为我需要以视频类型保存数据,所以我选择OpenNI2来获取深度和彩色图像。



问题:

根据小斤(Kinect开发教程八:OpenNI2显示深度、彩色及融合图像)教程的代码:

<span style="font-family:Microsoft YaHei;">/*************************OpenNI2 Deep, Color and Fusion ImageAuthor: Xin Chen, 2013.2Blog: http://blog.csdn.net/chenxin_130*************************/#include <stdlib.h>#include <iostream>#include <string>#include "OpenNI.h"#include "opencv2/core/core.hpp"#include "opencv2/highgui/highgui.hpp"#include "opencv2/imgproc/imgproc.hpp"using namespace std;using namespace cv;using namespace openni;void CheckOpenNIError( Status result, string status ){ if( result != STATUS_OK ) cerr << status << " Error: " << OpenNI::getExtendedError() << endl;}int main( int argc, char** argv ){Status result = STATUS_OK;      //OpenNI2 imageVideoFrameRef oniDepthImg;    VideoFrameRef oniColorImg;//OpenCV imagecv::Mat cvDepthImg;cv::Mat cvBGRImg;cv::Mat cvFusionImg;cv::namedWindow("depth");cv::namedWindow("image");cv::namedWindow("fusion");char key=0;//【1】// initialize OpenNI2    result = OpenNI::initialize();CheckOpenNIError( result, "initialize context" );  // open device  Device device;    result = device.open( openni::ANY_DEVICE );//【2】// create depth stream     VideoStream oniDepthStream;    result = oniDepthStream.create( device, openni::SENSOR_DEPTH );//【3】// set depth video mode    VideoMode modeDepth;    modeDepth.setResolution( 640, 480 );    modeDepth.setFps( 30 );    modeDepth.setPixelFormat( PIXEL_FORMAT_DEPTH_1_MM );    oniDepthStream.setVideoMode(modeDepth);// start depth stream    result = oniDepthStream.start(); // create color stream    VideoStream oniColorStream;    result = oniColorStream.create( device, openni::SENSOR_COLOR );// set color video modeVideoMode modeColor;    modeColor.setResolution( 640, 480 );    modeColor.setFps( 30 );    modeColor.setPixelFormat( PIXEL_FORMAT_RGB888 );    oniColorStream.setVideoMode( modeColor);//【4】// set depth and color imge registration modeif( device.isImageRegistrationModeSupported(IMAGE_REGISTRATION_DEPTH_TO_COLOR ) ){device.setImageRegistrationMode( IMAGE_REGISTRATION_DEPTH_TO_COLOR );}// start color stream    result = oniColorStream.start();  while( key!=27 ) {  // read frameif( oniColorStream.readFrame( &oniColorImg ) == STATUS_OK ){// convert data into OpenCV typecv::Mat cvRGBImg( oniColorImg.getHeight(), oniColorImg.getWidth(), CV_8UC3, (void*)oniColorImg.getData() );cv::cvtColor( cvRGBImg, cvBGRImg, CV_RGB2BGR );cv::imshow( "image", cvBGRImg );}  if( oniDepthStream.readFrame( &oniDepthImg ) == STATUS_OK ){cv::Mat cvRawImg16U( oniDepthImg.getHeight(), oniDepthImg.getWidth(), CV_16UC1, (void*)oniDepthImg.getData() );cvRawImg16U.convertTo( cvDepthImg, CV_8U, 255.0/(oniDepthStream.getMaxPixelValue()));//【5】// convert depth image GRAY to BGRcv::cvtColor(cvDepthImg,cvFusionImg,CV_GRAY2BGR);cv::imshow( "depth", cvDepthImg );}//【6】cv::addWeighted(cvBGRImg,0.5,cvFusionImg,0.5,0,cvFusionImg);cv::imshow( "fusion", cvFusionImg );key = cv::waitKey(20);}//cv destroycv::destroyWindow("depth");cv::destroyWindow("image");cv::destroyWindow("fusion");    //OpenNI2 destroy    oniDepthStream.destroy();    oniColorStream.destroy();    device.close();    OpenNI::shutdown();return 0;}</span>
运行结果:


可以看到程序没有报错,但是却没有depth image。



解决办法:

在查阅了很多资料后,在stack overflow上我看到了一个问题:Change resolution on openni2 not working

运行了代码之后:(OniSampleUtilities.h就在OpenNI2安装目录下,例如我的路径是:F:\Program Files (x86)\OpenNI2\Samples\SimpleViewer



看到他的问题是:



我猜想是不是只运行512*424以内的格式,所以640*480便不可执行,于是我把小斤的代码中640*480全部改为320*240,运行:


显示depth图像成功!


具体的原因我也并不是很清楚,也许是OpenNI2的一个BUG吧~科科~



0 0