Fast motion estimation using feature extraction and XOR operations

Thinh Minh Le; W. Martin Snelgrove; Sethuraman Panchanathan

doi:10.1117/12.304669

26 March 1998 Fast motion estimation using feature extraction and XOR operations

Thinh Minh Le, W. Martin Snelgrove, Sethuraman Panchanathan

Proceedings Volume 3311, Multimedia Hardware Architectures 1998; (1998) https://doi.org/10.1117/12.304669
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

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.

Citation Download Citation

Thinh Minh Le, W. Martin Snelgrove, and Sethuraman Panchanathan "Fast motion estimation using feature extraction and XOR operations", Proc. SPIE 3311, Multimedia Hardware Architectures 1998, (26 March 1998); https://doi.org/10.1117/12.304669

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