An adaptive and fast fractional pixel search algorithm in H.264
Signal Processing
Adaptive method for early detecting zero quantized DCT coefficients in H.264/AVC video encoding
IEEE Transactions on Circuits and Systems for Video Technology
Early determination of zero-quantized 8 × 8 DCT coefficients
IEEE Transactions on Circuits and Systems for Video Technology
Reducing computational costs of H.264/AVC for video codec in mobile devices
Proceedings of the 7th International Conference on Ubiquitous Information Management and Communication
Aggregate power consumption modeling of live video streaming systems
Proceedings of the 4th ACM Multimedia Systems Conference
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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 transforms is also provided. It is the 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.