A motion estimation processor for MPEG2 video real time encoding at wide search range

Author

Ohtani, A. ; Matsumoto, Y. ; Gion, M. ; Yoshida, H. ; Araki, T. ; Ubukata, A. ; Serizawa, M. ; Aoki, K. ; Sota, A. ; Nagata, A. ; Aono, K.

Author_Institution

Semicond. Res. Center, Matsushita Electr. Ind. Co. Ltd., Osaka, Japan

fYear

1995

fDate

1-4 May 1995

Firstpage

405

Lastpage

408

Abstract

We have developed a motion estimation processor, named COMET (COmpact Motion Estimation processor for real-Time MPEG2 encoding) for real-time MPEG2 encoding. COMET contains a full pel resolution estimation processor made up of 256 processing elements, a half pel resolution estimation processor made up of 8 processing elements and an SDRAM interface. This chip searches motion vectors through a full search method in a horizontal and vertical range of -16 pel to +15.5 pel. COMET is implemented by using 0.5 μm-CMOS technology and contains 1.5 million transistors on an area of 12.9 mm×11.1 mm. COMET has a computation power of 42GOPS at 80 MHz and performs real-time motion vector estimation at a speed of 54 MHz for 720 ×480 pel. An MPEG2 real-time encoding system with a high quality image for MP@ML can be realized using COMET

Keywords

CMOS digital integrated circuits; digital signal processing chips; motion estimation; video coding; 0.5 micron; 54 MHz; 80 MHz; CMOS technology; COMET; MPEG2 video real time encoding; SDRAM interface; full pel processor; full search method; half pel processor; motion estimation processor; Circuits; Communication industry; Encoding; Image coding; Large scale integration; Motion estimation; Real time systems; Search methods; Transform coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1995., Proceedings of the IEEE 1995

Conference_Location

Santa Clara, CA

Print_ISBN

0-7803-2584-2

Type

conf

DOI

10.1109/CICC.1995.518213

Filename

518213