Generic algorithms for motion compensation and transformation

Henryk Richter; Benno Stabernack; Erika Müller

doi:10.1117/12.766488

26 February 2008 Generic algorithms for motion compensation and transformation

Henryk Richter, Benno Stabernack, Erika Müller

Proceedings Volume 6811, Real-Time Image Processing 2008; 68110U (2008) https://doi.org/10.1117/12.766488
Event: Electronic Imaging, 2008, San Jose, California, United States

Abstract

In this paper, we propose algorithms that map the low-level motion compensation and transformation functions of MPEG-1/2, H.263/MPEG-4 ASP and H.264/MPEG-4 AVC video codecs onto common workflows. This way, a single discrete implementation of luma prediction, chroma prediction and residual transform stages is sufficient for all covered video coding standards. The proposed luma prediction is based on 4×4 blocks to cover the H.264 specifications as well as the elder standards. The design consists of a singular four stage pipeline for two block interpolation and two block averaging stages. Targeted for hardware implementation, a strictly linear execution is provided, avoiding branch operations. The algorithmic behavior is entirely dictated by the contents of the parameter ROM. Since chrominance prediction must cover blocks as small as 2×2 pixels, a distinct operation is proposed for chroma. The bilinear operation scheme in H.264 is able to carry out the operations for the elder standards with minor changes only. In H.264, the classic 8×8 DCT transformation was replaced by a simplified 4×4 integer transform, based on a heavily quantized DCT scheme. By modifications of a well-known multiplier-adder-based scheme, a generalized transformation stage can be derived.

Citation Download Citation

Henryk Richter, Benno Stabernack, and Erika Müller "Generic algorithms for motion compensation and transformation", Proc. SPIE 6811, Real-Time Image Processing 2008, 68110U (26 February 2008); https://doi.org/10.1117/12.766488

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