Image data decoding device and image data decoding method
AssigneePanasonic Corporation
InventorMotokazu Ozawa
Life of this patent
Estimating the term…
Abstract
To reduce bandwidth in an image data decoding device including a decoding unit which obtains image data inputted into the image data decoding device and decodes the obtained image data. A decoding device (100) which decodes a bitstream of an image, includes: a code converting unit (101) which converts the bitstream inputted to the decoding device (100) into a bitstream coded using a second coding rule in which a maximum code length is shorter than in a first coding rule by which the bitstream has been coded; and an image decoder (103) which obtains the bitstream that has been converted by the code converting unit (101), and decodes the obtained bitstream.
Claims19
An image data decoding device which decodes image data, said image data decoding device comprising:
- a code converting unit configured to convert image data inputted to said image data decoding device into image data coded according to a second coding rule in which a maximum code length is shorter than in a first coding rule used to code the inputted image data;
- a buffer which stores the image data after the conversion by said code converting unit;
- and
- a decoding unit configured to obtain, from said buffer, the image data after the conversion by said code converting unit, and to decode the obtained image data.
An image data decoding method of decoding image data, using an image data decoding device, said method comprising:
- converting image data inputted to the image data decoding device into image data coded according to a second coding rule in which a maximum code length is shorter than in a first coding rule used to code the inputted image data;
- storing, in a buffer, the image data after the conversion in said converting;
- and
- obtaining, from the buffer, the image data after the conversion in said converting, and decoding the obtained image data.
An integrated circuit which decodes image data, said integrated circuit comprising:
- a code converting unit configured to convert image data inputted to said integrated circuit into image data coded according to a second coding rule in which a maximum code length is shorter than in a first coding rule used to code the inputted image data;
- a buffer which stores the image data after the conversion by said code converting unit;
- and
- a decoding unit configured to obtain, from said buffer, the image data after the conversion by said code converting unit, and to decode the obtained image data.
An image data decoding device which decodes image data in H.264 standard, said image data decoding device comprising:
- a code converting unit configured to convert image data inputted to said image data decoding device into image data coded according to a second coding rule in which a maximum code length is shorter than in a first coding rule used to code the inputted image data;
- a decoding unit configured to obtain the image data after the conversion by said code converting unit, and to decode the obtained image data;
- and
- an arithmetic decoding unit configured to perform arithmetic decoding in the H.264 standard on the image data before the conversion by said code converting unit.
An image data decoding method of decoding image data in H.264 standard, using an image data decoding device, said method comprising:
- converting image data inputted to the image data decoding device into image data coded according to a second coding rule in which a maximum code length is shorter than in a first coding rule used to code the inputted image data;
- obtaining the image data after the conversion in said converting, and decoding the obtained image data;
- and
- performing arithmetic decoding in the H.264 standard on the image data before the conversion in said converting.
An integrated circuit which decodes image data in H.264 standard, said integrated circuit comprising:
- a code converting unit configured to convert image data inputted to said integrated circuit into image data coded according to a second coding rule in which a maximum code length is shorter than in a first coding rule used to code the inputted image data;
- a decoding unit configured to obtain the image data after the conversion by said code converting unit, and to decode the obtained image data;
- and
- an arithmetic decoding unit configured to perform arithmetic decoding in the H.264 standard on the image data before the conversion by said code converting unit.
Dependencies are inferred from the claim text.