Title:
可変ビットフィールドによる符号化
Document Type and Number:
Japanese Patent JP4680407
Kind Code:
B2
Abstract:
A compact image element encoding format selectively allocates a bit field within the format to alternately encode either multi-bit alpha resolution or increased color resolution. This encoding technique may be advantageously used to allocate encoding bits to model semi-transparency while using those same bits for other purposes (e.g., higher color resolution) in instances where semi-transparency is not required (e.g., for opaque image elements). In one advantageous embodiment, the same encoding format can provide either RGB5 or RGB4A3, on an image-element-by-image-element basis. Applications include but are not limited to texture mapping in a 3D computer graphics system such as a home video game system or a personal computer.
Inventors:
Martin Hollis
Anthony P. Deloria
Far Had For Radi
Anthony P. Deloria
Far Had For Radi
Application Number:
JP2001108979A
Publication Date:
May 11, 2011
Filing Date:
April 06, 2001
Export Citation:
Assignee:
Nintendo Co., Ltd
International Classes:
G06T15/04; G06T11/00; G06T15/00
Domestic Patent References:
| JP8212377A | ||||
| JP10126710A | ||||
| JP10164620A |
Foreign References:
| US5914725 | ||||
| US6002410 |
Attorney, Agent or Firm:
Shiro Ogasawara