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US 5,631,744 AGranted
Coding apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYoshitaka Takeuchi, Masahiko Enari
Life of this patent
Estimating the term…
Abstract
A coding apparatus includes a blocking unit for gathering and blocking sample values of input signals, an orthogonal-transforming unit for orthogonal-transforming the blocked input signals, a transforming unit for constructing a one-dimensionally arraying block by combining orthogonal-transformed blocks and for arranging the data in the one-dimensionally arraying block in a one-dimensional array, and a coding unit for coding the data of the one-dimensional array from the transforming unit.
Claims15
A coding apparatus comprising:
- blocking means for gathering and blocking sample values of input signals;
- output means for selectively outputting data, in a first output mode for outputting a difference signal obtained by subtracting a predicted value from an input signal blocked by said blocking means, and, in a second mode for outputting an input signal blocked by said blocking means, without using the difference signal;
- orthogonal-transforming means for orthogonal-transforming data from said output means;
- transforming means for constructing a two-dimensionally arraying block by combining a plurality of blocks orthogonal-transformed by said orthogonal-transforming means, and for transforming the data of the two-dimensionally arraying block into a one-dimensional array;
- and
- coding means for coding the data of the one-dimensional array.
3 more elements
An image coding apparatus comprising:
- a) blocking means for blocking image data;
- b) orthogonal-transforming means for orthogonal-transforming image data blocked by said blocking means;
- c) outputting means for gathering a predetermined number of the orthogonal-transformed data blocks within one picture, and for outputting the orthogonal-transformed data of the gathered data blocks, wherein said outputting means outputs the orthogonal-transformed data so as to disperse the orthogonal-transformed data of each of the gathered data blocks;
- and
- coding means for coding the orthogonal-transfored data output by said outputting means.
2 more elements
Dependencies are inferred from the claim text.