论文信息 - LOW-POWER 2D MOTION ESTIMATION ARCHITECTURE WITH COMPLEMENTARY EMBEDDED MEMORY BANKS

LOW-POWER 2D MOTION ESTIMATION ARCHITECTURE WITH COMPLEMENTARY EMBEDDED MEMORY BANKS

This letter describes a motion estimation architecture with complementary access types of memory banks, one for column vector access and the other for row vector access. It handles 2D image very efficiently for full-search block matching algorithm and maximizes a useful data transfer rate by reducing the overhead clocks for extra data reading and alignment. The results show that power saving is improved by using complementary access types of memory banks and amounts to 27.3% when the full-search block matching algorithm is applied for the CCIR-601 format compared to an identical design without the proposed enhancements.

Kwyro Lee | Kyung-Saeng Kim

[1] Hsueh-Ming Hang,et al. A comparison of block-matching algorithms mapped to systolic-array implementation , 1997, IEEE Trans. Circuits Syst. Video Technol..

[2] Kwyro Lee,et al. Charge recycling differential logic (CRDL) for low power application , 1996 .

[3] Leonardo Chiariglione. MPEG and multimedia communications , 1997, IEEE Trans. Circuits Syst. Video Technol..

[4] A. Anesko,et al. A 14 GOPS programmable motion estimator for H.26x video coding , 1996, 1996 IEEE International Solid-State Circuits Conference. Digest of TEchnical Papers, ISSCC.

[5] I. Tamitani,et al. A 1.5-W single-chip MPEG-2 MP@ML video encoder with low power motion estimation and clocking , 1997, IEEE J. Solid State Circuits.

[6] Matthias Schöbinger,et al. VLSI architecture for a flexible block matching processor , 1995, IEEE Trans. Circuits Syst. Video Technol..

[7] Anantha P. Chandrakasan,et al. Low-power CMOS digital design , 1992 .

[8] Masahiko Yoshimoto,et al. A half-pel precision MPEG2 motion-estimation processor with concurrent three-vector search , 1995 .

[9] Kenneth Y. Yun,et al. A low-power VLSI architecture for full-search block-matching motion estimation , 1998, IEEE Trans. Circuits Syst. Video Technol..