In this letter, a novel method based on Temporal and Spatial Prediction (TSP) to detecl all-zero DC.'T coefficients based on temporal and .spatial prediction between neighboring blocks is proposed. The presented a...In this letter, a novel method based on Temporal and Spatial Prediction (TSP) to detecl all-zero DC.'T coefficients based on temporal and .spatial prediction between neighboring blocks is proposed. The presented algorithm uses the knowledge of all-zero block distribution in the previous frame combined with the Sum of Absolute Difference (S.AD) of the corresponding macroblock as a. criterion. The algorithm almost needs no additional computation, and it. shows an excellent overall detection performance in simulations.展开更多
文摘In this letter, a novel method based on Temporal and Spatial Prediction (TSP) to detecl all-zero DC.'T coefficients based on temporal and .spatial prediction between neighboring blocks is proposed. The presented algorithm uses the knowledge of all-zero block distribution in the previous frame combined with the Sum of Absolute Difference (S.AD) of the corresponding macroblock as a. criterion. The algorithm almost needs no additional computation, and it. shows an excellent overall detection performance in simulations.
