The Real Sense D435 is a USB stereoscopic depth camera.
This sensor can provide in different modes.
If it is used as a image sensor or depth camera, please refer to” this page”:http://manual.stageprecision.com/stage.precision.beta/en/topic/image-based-blob-tracking for how to use it for blob tracking.
If it is used as a point cloud source, please refer to this page. for how to use it for blob tracking.