Author(s)

Xin Shu^1,2, Lei Pan¹, Yunsong Qi¹

¹School of Computer Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
²School of Internet of Things, Jiangnan University, Wuxi, China.

The matching and retrieval of the 2D shapes are challenging issues in object recognition and computer vision. In this paper, we propose a new object contour descriptor termed ECPDH (Elliptic Contour Points Distribution Histogram), which is based on the distribution of the points on an object contour under the polar coordinates. ECPDH has the essential merits of invariance to scale and translation. Dynamic Programming (DP) algorithm is used to measure the distance between the ECPDHs. The effectiveness of the proposed method is demonstrated using some standard tests on MPEG-7 shape database. The results show the precision and recall of our method over other recent methods in the literature.

Shape Descriptor, Shape Retrieval, Elliptic Contour Points Distribution Histogram, Dynamic Programming

Shu, X. , Pan, L. and Qi, Y. (2016) Shape Retrieval Using ECPDH with Dynamic Programming. Journal of Computer and Communications, 4, 63-78. doi: 10.4236/jcc.2016.416005.