# some problems on aligning color Image and depth map

• ### 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