Title :
A real-time motion estimation and compensation LSI with wide-search range for MPEG2 video encoding
Author :
Suguri, K. ; Minami, T. ; Matsuda, H. ; Kusaba, R. ; Kondo, T. ; Kasai, R. ; Watanabe, T. ; Satoh, H. ; Shibata, N. ; Tashiro, Y. ; Izuoka, T. ; Yamauchi, H. ; Kotera, H.
Author_Institution :
NTT LSI Labs., Atsugi, Japan
Abstract :
Development of a compact video encoding system that conforms to the MPEG2 standard is important for real-time visual communication. Motion estimation (ME) to find the best motion vector (MV) representing a spacial displacement for motion compensation (MC) has impact on image quality. Previous ME LSIs for MPEG2 are not suitable for compact, low-cost video encoding systems because they use a multi-chip configuration for wide-search-range MV detection for high-quality video encoding. An ME/MC LSI (ENC-M) based on a 3-step hierachical telescopic search method (HTSM) reduces computation for ME without significant degradation of image quality. The architectural features and chip design methodologies for HTSM are described.
Keywords :
digital signal processing chips; large scale integration; motion compensation; motion estimation; real-time systems; search problems; video coding; visual communication; ENC-M; LSI; MPEG2 video encoding; architecture; chip design; hierachical telescopic search method; image quality; motion compensation; motion estimation; real-time visual communication; Communication standards; Encoding; Image quality; Large scale integration; Motion compensation; Motion estimation; Real time systems; Search methods; Standards development; Visual communication;
Conference_Titel :
Solid-State Circuits Conference, 1996. Digest of Technical Papers. 42nd ISSCC., 1996 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3136-2
DOI :
10.1109/ISSCC.1996.488588
