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Proceedings Paper

Fast motion estimation using feature extraction and XOR operations
Author(s): Thinh Minh Le; W. Martin Snelgrove; Sethuraman Panchanathan
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Paper Abstract

Motion estimation is a temporal image compression technique where an n X n block of pixels in the current frame of a video sequence is represented by a motion vector with respect to the best matched block in a search area of the previous frame, and the DCT coefficients of the estimated error terms. In this paper, a fast technique for motion estimation is proposed and later mapped onto the SIMD structure of the computational*RAM (C*RAM). C*RAM is a conventional computer DRAM with built-in logic circuitry at the sense-amplifier to take advantage of the high on-chip memory bandwidth and massively parallel SIMD operations. The proposed technique, first, attempts to reduce the n-bit grayscale frames into 1-bit binary frames using morphological filters, and to search for motions of the extracted features on the binary frames. While the reduction procedure requires a small percentage of computation using the full grayscale, the search procedure is performed by simple XOR logic operations and 1-b distortion accumulations on the entire search area. The second part of the paper presents the mapping of the proposed technique onto the C*RAM architecture.

Paper Details

Date Published: 26 March 1998
PDF: 11 pages
Proc. SPIE 3311, Multimedia Hardware Architectures 1998, (26 March 1998); doi: 10.1117/12.304669
Show Author Affiliations
Thinh Minh Le, Univ. of Ottawa (Canada)
W. Martin Snelgrove, Carleton Univ. (Canada)
Sethuraman Panchanathan, Arizona State Univ. (United States)


Published in SPIE Proceedings Vol. 3311:
Multimedia Hardware Architectures 1998
Sethuraman Panchanathan; Frans Sijstermans; Subramania I. Sudharsanan, Editor(s)

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