Patent attributes
Systems and approaches are provided for tracking an object of interest using depth or disparity information, such as obtained by calculating stereo disparity between a pair of images. The depth or disparity information can be used as an additional signature for a template of the object of interest for tracking the object. A template that includes depth, distance, or disparity information for an object of interest may be invariant to the effects of lighting, such as shadows and changes in illumination conditions. Depth, distance, or disparity information can also provide information regarding shape and size that can be used to differentiate foreground objects. Depth, distance, or disparity information can also better handle occlusion. Depth, distance, or disparity information can also provide an additional disambiguating dimension for tracking an object.