Title:
LOW COMPLEXITY AND UNIFIED TRANSFORMS FOR VIDEO CODING
Document Type and Number:
Japanese Patent JP2010220225
Kind Code:
A
Abstract:
To provide a method and apparatus for decoding data (e.g., video data) using transforms.
A decoding process includes a step of scaling a block of coefficients using a scaling factor determined for each coefficient by computing an index for each coefficient and indexing a look-up table (LUT) using the index. The index is based on a quantization parameter, a size of the block of coefficients, and a position of each coefficient within the block. The method also includes a step of applying a transform to the block of scaled coefficients.
Inventors:
BOSSEN FRANK JAN
Application Number:
JP2010088897A
Publication Date:
September 30, 2010
Filing Date:
April 07, 2010
Export Citation:
Assignee:
NTT DOCOMO INC
International Classes:
H04N7/30; G06T9/00
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Okiyama
Kenji Fukaishi
Yoshiki Kuroki
Takashi Okiyama
Kenji Fukaishi