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some problems on aligning color Image and depth map RRS feed

  • 一般討論

  • For aligning ,I use the function "NuiImageGetColorPixelCoordinatesFromDepthPixel" to find the coordinate of RGB image corresponding to the coordinate of

    depth image .But I found there is some shift between RGB image and the depth map corresponding to RGB image(by the function

    "NuiImageGetColorPixelCoordinatesFromDepthPixel")

     

    here are the RGB image(http://ppt.cc/r5J9) and depth image(http://ppt.cc/Nkar)

    and code as follow

    for(int i=1 ; i<DEPTH_WIDTH ; i++)

    {

    for(int j=1 ; j<DEPTH_HIGHT ; j++)

    {

    USHORT realDepth = pBufferRun[j*DEPTH_WIDTH+i];    

    BYTE scale = 255 - (BYTE)(256*realDepth/0x0fff);

    int depthX = i ;

    int depthY = j ;

    long ix = 0, iy = 0;

    NuiImageGetColorPixelCoordinatesFromDepthPixel(NUI_IMAGE_RESOLUTION_640x480, NULL, 320-depthX ,depthY ,realDepth<<3 ,&ix ,&iy);

    if(ix>=0 && iy>=0 && ix<640 && iy<480 )

    {

    buf[3*COLOR_WIDTH*iy+ix*3] = scale;

    buf[3*COLOR_WIDTH*iy+ix*3+1] = scale;

    buf[3*COLOR_WIDTH*iy+ix*3+2] = scale;

    }

    }

    and the initial type of depth is NUI_IMAGE_TYPE_DEPTH

    Is it wrong to use the function or it does some error because of Kinect??

    2011年11月13日 上午 08:04