Image coding method, image coding apparatus, image decoding method and image decoding apparatus

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United States of America Patent

PATENT NO RE47728
SERIAL NO

15279658

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Abstract

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A decoding method decodes last position information indicating horizontal and vertical positions of a last non-zero coefficient in a predetermined order within a current block to be decoded, the current block including plural coefficients. The decoding includes obtaining a bitstream including first, second, third and fourth partial signals, in this order, performing first arithmetic decoding on the first and the third partial signals respectively to obtain decoded first and decoded third partial signals, performing second arithmetic decoding on the second and the fourth partial signals respectively to obtain decoded second and decoded fourth partial signals, the second arithmetic decoding being different from the first arithmetic decoding, deriving a horizontal component of the last position information from the decoded first and decoded third partial signals, and deriving a vertical component of the last position information from the decoded second and decoded fourth partial signals.

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SUN PATENT TRUSTNEW YORK NY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsunobu, Toru Osaka, JP 341 1359
Nishi, Takahiro Nara, JP 629 2797
Sasai, Hisao Osaka, JP 512 2602
Shibahara, Youji Tokyo, JP 471 2181
Sugio, Toshiyasu Osaka, JP 468 2328
Tanikawa, Kyoko Osaka, JP 316 1348
Terada, Kengo Osaka, JP 254 612

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