Hierarchical motion estimation in Hadamard transform domain

作     者：Choi, SY Chae, SI 

作者机构：Seoul Natl Univ Sch Elect Engn Seoul 151742 South Korea 

出 版 物：《ELECTRONICS LETTERS》 (电子学快报)

年 卷 期：1999年第35卷第25期

页      面：2187-2188页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：image degradation Hadamard transform domain hierarchical motion estimation matching measure Signal processing theory reconstructed image quality computational complexity Hadamard transforms Computer vision and image processing techniques Image processing and restoration image reconstruction motion estimation Image and video coding pixel domain hierarchical motion estimation algorithm Video signal processing video coding absolute difference Image recognition 

摘      要：The authors propose a hierarchical motion estimation algorithm in which the sum of the absolute difference in the Hadamard transform domain is used as its matching measure. The computational complexity of this algorithm was reduced to similar to 5.6% while the image degradation of its reconstructed image quality was 0.1 dB on average, compared with that of the full search in the pixel domain.