A half-pel precision motion estimation processor for NTSC-resolution video

Author

Uramoto, Shin-ichi ; Takabatake, Akihiko ; Suzuki, Mitsuyoshi ; Sakurai, Hiroki ; Yoshimoto, Masahiko

Author_Institution

Mitsubishi Electric Corp., Hyogo, Japan

fYear

1993

fDate

9-12 May 1993

Abstract

A motion estimation processor compatible with CCITT H.261 and MPEG (Moving Pictures Experts Group) standards is described. A half-pel precision processing unit with an exhaustive block matching unit for integer-pel precision search is introduced. The necessary processing power for the exhaustive block matching is implemented with a one-dimensional array structure using a subsampling technique. The problem of communication bandwidth to the frame memory, which is a bottleneck of half-pel precision motion estimation, is solved by introducing a candidate pixel buffer in the interprocessor data transfer. It is noted that this is the first single-chip solution proposed that is capable of processing NTSC-resolution video in real time in 40-MHz operation

Keywords

motion estimation; 40 MHz; CCITT standards; MPEG standards; NTSC-resolution video; VLSI; communication bandwidth; exhaustive block matching unit; frame memory; half-pel precision motion estimation processor; integer-pel precision search; interprocessor data transfer; one-dimensional array structure; pixel buffer; single-chip solution; subsampling; Bandwidth; Circuits; Communication equipment; Laboratories; Large scale integration; MPEG standards; Motion estimation; Power dissipation; Predictive coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1993., Proceedings of the IEEE 1993

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0826-3

Type

conf

DOI

10.1109/CICC.1993.590693

Filename

590693