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US 10,897,629 B2Granted
Methods and systems for intra block copy search enhancement
AssigneeVid Scale, Inc.
InventorsYuwen He, Xiaoyu Xiu, Yan Ye, Ralph Neff
Life of this patent
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AssigneeVid Scale, Inc.
InventorsYuwen He, Xiaoyu Xiu, Yan Ye, Ralph Neff
Estimating the term…
In an intra-block copy video encoding method, an encoder performs a hash-based search to identify a selected set of candidate blocks for prediction of an input video block. For each of the candidate blocks in the selected set, the encoder determines a correlation between, on the one hand, luma and chroma components of the input video block and, on the other hand, luma and chroma components of the respective candidate blocks. A predictor block is selected based on the correlation and is used to encode the input video block. In different embodiments, the correlation may be the negative of the sum of absolute differences of the components, may include a Jaccard similarity measure between respective pixels, or may be based on a Hamming distance between two high precision hash values of the input video block and the candidate block.
A method of generating a bit stream encoding a video including an input video block, the method comprising:
A method of generating a bit stream encoding a video including an input video block, the method comprising:
A video encoder including a processor and a non-transitory computer-readable medium storing instructions operative, when executed on the processor, to perform functions including:
Dependencies are inferred from the claim text.