18818074. ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD (Panasonic Intellectual Property Corporation of America)

ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD

Organization Name

Panasonic Intellectual Property Corporation of America

Inventor(s)

Ryuichi Kanoh of Osaka (JP)

Takahiro Nishi of Nara (JP)

Tadamasa Toma of Osaka (JP)

ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD

This abstract first appeared for US patent application 18818074 titled 'ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD

Original Abstract Submitted

An encoding method includes: changing values of luma pixels in a first block and a second block to filter a first boundary between the first block and the second block, using clipping such that change amounts of the respective values are within respective luma clip widths, the luma pixels in the first block and the second block being arranged along a first line across the first boundary; and changing values of chroma pixels in a third block and a fourth block to filter a second boundary between the third block and the fourth block, using clipping such that change amounts of the respective values are within respective chroma clip widths, the chroma pixels in the third block and the fourth block being arranged along a second line across the second boundary. The luma clip widths applied to the luma pixels are selected to be asymmetrical relative to the first boundary.