Survey of Local Feature Extraction on Range Images
Yulan Guo · 2012
Three dimensional ( 3D) object recognition is a hot research topic in computer vision. Local feature extraction is a key stage for 3D object recognition with the presence of occlusion and clutter. Firstly, range images and their representations are described. The differential geometric attributes are introduced, including the surface normal,the curvature and the shape index. Then,the local feature detection methods are classified into fixed scale method and adaptive scale method. And the local feature description methods are classified into depth value based,point spatial distribution based and geometric attributes distribution based methods. These methods with their merits and demerits are described. Finally,the existing methods are summarized and several challenges and future research directions are pointed out.