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US 5,703,648 AGranted
Coding apparatus
AssigneeCanon Kabushiki Kaisha
InventorAkihiro Shikakura
Life of this patent
Estimating the term…
Abstract
There is provided a coding apparatus comprising: a block dividing section for dividing one picture of an input image signal into (n) blocks; (n) coding sections for coding the image data of each of the (n) blocks; and a control section for dividing one picture of the input image signal into (m) blocks so as to exist over the (n) blocks and for controlling an amount of codes which are generated from each of the coding section every (m) blocks.
Claims26
A coding apparatus comprising:
- a) block dividing means for dividing one picture of an input image signal into (n) blocks;
- b) (n) coding means for coding the image signals of said (n) blocks;
- and
- c) control means for dividing one picture of said input signal into (m) blocks so as to exist over said (n) blocks and for controlling an amount of codes which are generated from each of said coding means in a unit of each of said (m) blocks.
1 more element
A coding apparatus comprising:
- dividing means for dividing one picture of an input image signal into a plurality of blocks;
- a plurality of coding means each for coding the image signal every block divided by said dividing means;
- memory means for storing each of the image signals coded by each of said coding means;
- and
- control means for controlling a code amount of a predetermined image signal collected from each of said blocks and coded by each of said coding means, said control means controlling the code amount by changing a coding parameter of each of said coding means in accordance with the data amount stored in said memory means, thereby controlling the amount of codes which are generated from each of said coding means.
2 more elements
A coding apparatus comprising:
- a) dividing means for dividing one picture of an input image signal into a plurality of first blocks;
- b) a plurality of coding means each for coding the image signal of each said first block, each of said plurality of coding means dividing each said first block into a plurality of second blocks and performing a coding processing on each said second block;
- and
- c) control means for controlling a coding parameter of each of said coding means according to an amount of codes which are generated when the image signal of a predetermined number of said second blocks are coded, said predetermined number of second blocks being extracted from at least two of said first blocks.
1 more element
A coding method comprising the steps of:
- a block dividing step of dividing one picture of an input image signal into (n) blocks;
- a coding step of coding the image signals of said (n) blocks using (n) coding means;
- and
- a control step of dividing one picture of the input image signal into (m) blocks so as to exist over said (n) blocks and for controlling an amount of codes which are generated from each of said coding means in a unit of each of said (m) blocks.
1 more element
A coding method comprising the steps of:
- a dividing step of dividing one picture of an input image signal into a plurality of blocks;
- a coding step of coding the image signal using a plurality of coding means each for coding the image signal every block divided by said dividing step;
- a memory step of storing each of the image signals coded by each of said coding means;
- and
- a control step of controlling a code amount of a predetermined image signal collected from each of said blocks and coded by each of said coding means, said control step controlling the code amount by changing a coding parameter of each of said coding means in accordance with the data amount stored in said memory step, thereby controlling the amount of codes which are generated from each of said coding means.
2 more elements
A coding method comprising the steps of:
- a dividing step of dividing one picture of an input image signal into a plurality of first blocks;
- a coding step of coding the image signal using a plurality of coding means each for coding the image signal of each said first block, each of the plurality of coding means dividing each first block into a plurality of second blocks and performing a coding processing on each said second block;
- and
- a control step of controlling a coding parameter of each of the coding means according to an amount of codes which are generated when the image signal of a predetermined number of said second blocks are coded, said predetermined number of second blocks being extracted from at least two of said first blocks.
1 more element
Dependencies are inferred from the claim text.