Early detection method of all-zero integer transform coefficients

Yingkun Wang

doi:10.1109/TCE.2004.1341701

Early detection method of all-zero integer transform coefficients

2004-08-01

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DOI：10.1109/TCE.2004.1341701

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The new H.264 video coding standard has a significant performance benefit versus older standards in compression performance. Unfortunately, it also has a considerable increase in encoder complexity. In this paper, we extend and adapt the concept of detection of all-zero quantization coefficients before transformation and quantization. A guideline for miss detection and false detection is proposed according to the principle of two-dimensional integer DCT and quantization in H.264. With this guideline, a generalized discriminant that can be applied to different integer transform is also provided. It is so-called early detection method of all-zero Integer DCT coefficients (EDMAIDC). Simulation results demonstrate the efficiency of proposed algorithm of reducing encoding complexity while incurring no loss in quality.

Keywords:

integer transform

quantization

all-zero coefficient block

Early detection method of all-zero integer transform coefficients

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