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Title:
Video coding and decoding with conversion
Document Type and Number:
Japanese Patent JP6328220
Kind Code:
B2
Abstract:
Video encoding or decoding utilising a spatial transform operating on rows and columns of a block, with a set of transform skip modes including: transform on rows and columns; transform on rows only; transform on columns only; no transform. An indication of the selected mode is provided to the decoder. Coefficients are scaled by a factor dependent upon the norm of the transform vector of the skipped transform to bring the untransformed image values to the same level as transformed coefficients.

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Inventors:
Murak, Malta
Gabrieleni, Andrea
Nikola, Spurrian
Flynn, David
Application Number:
JP2016245854A
Publication Date:
May 23, 2018
Filing Date:
December 19, 2016
Export Citation:
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Assignee:
BRITISH BROADCASTING CORPORATION
International Classes:
H04N19/12; H04N19/147; H04N19/176; H04N19/46; H04N19/60; H04N19/91
Domestic Patent References:
JP6217280A
JP6086258A
JP5207438A
JP6189290A
Attorney, Agent or Firm:
Takayuki Hirose
Daisuke Seki



 
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