Depth stream To 3D position

Jian_l_2 — Mon, 22 Dec 2014 03:39:09 GMT

I wanto use the every Pixel of Depth stream to get 3D position which include Dist x,y,z and Degrees X,Y,Z. Dose the SDK include this algorithm?

Yes, you can access depth

Pubudu-Silva_Intel — Mon, 22 Dec 2014 18:10:48 GMT

Yes, you can access depth data of all pixels. Please refer to the background segmentation tutorial, and specially the sample code at

https://software.intel.com/sites/default/files/managed/66/9c/Background_Segmentation.pdf

Hi, I apologize, I think the

Jonathan_M_Intel — Mon, 22 Dec 2014 21:42:17 GMT

Hi, I apologize, I think the link Pudubu shared is not helpful. To transform the depth image values to 3D coordinates, check the documentation for the PXCProjection interface:

https://software.intel.com/sites/landingpage/realsense/camera-sdk/2014gold/documentation/html/index.html?pxcprojection.html

Try this (pseudocode):

PXCProjection * projection = sensemanager->QueryCaptureManager()->QueryDevice()->CreateProjection();

PXCPoint3DF32 depthCoords[width * height * 3];

while(loop) {

sensemanager->AcquireFrame();

PXCCapture::Sample * sample = sensemanger->QuerySample();

PXCImage * depthMap = sample->depth;

projection->QueryVertices(depthMap,(PXCPoint3DF32 *) depthCoords);

//Do something with your coordinates//

sensemanager->ReleaseFrame();

}

Your 3D points will be in the depthCoords array, packed as [x,y,z] in millimeters, with one set of 3 floats for each of the original depth map pixels, in "raster order", and using the coordinate system described here:

https://software.intel.com/sites/landingpage/realsense/camera-sdk/2014gold/documentation/html/index.html?manuals_coordinate_systems.html

Note: many of the resulting coordinates will be zeros, but that only means that those pixels were either saturated or too far for detection. There will be usable depth points deeper into the array.

Hope this helps.

topic Depth stream To 3D position in Software Archive

Depth stream To 3D position

Yes, you can access depth

Hi, I apologize, I think the