Abstract
Depth sensors like ToF cameras and structured light devices provide valuable scene information, but do not provide a stable base for optical flow or feature movement calculation because the lack of texture information makes depth image registration very challenging. Approaches associating depth values with optical flow or feature movement from color images try to circumvent this problem, but suffer from the fact that color features are often generated at edges and depth discontinuities, areas in which depth sensors inherently deliver unstable data. Using deformation tracking as an application, this article will discuss the benefits of Analysis by Synthesis (AbS) while approaching the tracking problem and how it can be used to:
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