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Fast block-based true motion estimation using distance dependent thresholds

journal contribution
posted on 2023-02-07, 23:32 authored by G Sorwar, Manzur MurshedManzur Murshed, L Dooley
A fast motion estimation algorithm, called distance-dependent thresholding search (DTS), is presented for block-based true motion estimation applications, and introduces the novel concept of variable distance dependent thresholds. The performance of the DTS algorithm is analysed and quantitatively compared with both the traditional and exhaustive full-search (FS) technique, and the computationally faster, non-exhaustive three-step-search (TSS) algorithm. Experimental results show that by applying an appropriate threshold function, the DTS algorithm not only matches the speed of the TSS algorithm, but both retains a block distortion error comparable to the global minimum produced by the FS algorithm, and avoids the problem of identifying a large number of spurious motion vectors in the search process.

History

Journal

Journal of Research and Practice in Information Technology

Volume

36

Pagination

157-169

ISSN

1443-458X

Language

English

Issue

3

Publisher

AUSTRALIAN COMPUTER SOC INC

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