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A motion estimation (ME) processor for H.264 encoder is implemented in 40nm CMOS. With algorithm and architecture co-optimization, its throughput reaches 1.59Gpixel/s for 7680×4320p 48fps video, at least 7.5 times faster than previous chips. Its core power dissipation is 622mW at 210MHz, with energy efficiency improved by 23%. DRAM bandwidth requirement is reduced by 68%. With a maximum search range...
This paper proposes a high-performance intra prediction architecture that can support H.264/AVC high profile. The proposed MB/block co-reordering can avoid data dependency and improve pipeline utilization. Therefore, the timing constraint of real-time 4k×2k encoding can be achieved with negligible quality loss. 16×16 prediction engine and 8×8 prediction engine work parallel for prediction and coefficients...
Identification of Chinese coding type is a major and challenging issue in Chinese web content audit and analysis. In this paper we develop a novel algorithm based on the theory of Kolmogorov complexity to identify the coding type of Chinese characters of a given text segment. An array of text compressors are used as filters to evaluate the information distance of text under examination and the training...
This paper studied the identification algorithm of Chinese character coding type by analyzing the sub-sentence length. A sub-sentence definition is given in this paper and the pdf of sub-sentence length is analyzed based on the sentence samples from Lancaster corpus. We proposed a new algorithm to recognize the coding type of Chinese characters by splitting sentences into sub-sentences using Chinese...
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