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US 10,652,557 B2Granted
Moving picture coding method, moving picture coding apparatus, moving picture decoding method, and moving picture decoding apparatus
AssigneeSun Patent Trust
InventorsKengo Terada, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toshiyasu Sugio, Toru Matsunobu
Life of this patent
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Abstract
The moving picture coding method for coding an input image includes: converting a value of a first parameter into a first binary signal, the first parameter identifying a type of a sample offset process to be applied to a reconstructed image corresponding to the input image; and coding at least a portion of the first binary signal through bypass arithmetic coding using a fixed probability.
Claims2
A moving picture coding method for coding an input image, the method comprising:
- converting, using a binarizer, a value of a first parameter into a first binary signal, the first parameter identifying a type of a sample offset process to be applied to a reconstructed image corresponding to the input image;
- coding a first portion of the first binary signal through context-adaptive arithmetic coding;
- and
- coding, when a value of the first portion of the first binary signal is greater than or equal to a predetermined value, a second portion of the first binary signal through bypass arithmetic coding using a fixed probability,
- wherein a variable probability is not used in the bypass arithmetic coding,
- the first portion of the first binary signal is composed of a head bit of the first binary signal, and
- the second portion of the first binary signal is composed of one or more remaining bits of the first binary signal.
4 more elements
A moving picture coding apparatus that codes an input image, the apparatus comprising:
- a converter that converts, using a binarizer, a value of a first parameter into a first binary signal, the first parameter identifying a type of a sample offset process to be applied to a reconstructed image corresponding to the input image;
- a first coder that codes a first portion of the first binary signal through context-adaptive arithmetic coding;
- and
- a second coder that codes, when a value of the first portion of the first binary signal is greater than or equal to a predetermined value, a second portion of the first binary signal through bypass arithmetic coding using a fixed probability,
- wherein a variable probability is not used in the bypass arithmetic coding,
- the first portion of the first binary signal is composed of a head bit of the first binary signal, and
- the second portion of the first binary signal is composed of one or more remaining bits of the first binary signal.
4 more elements
Dependencies are inferred from the claim text.