发明名称 |
Picture compressing and restoring system and record pattern forming method for a spatial light modulator |
摘要 |
Total image processing by way of high-speed parallel optical operations. A multiplication device memorizes a series of optical density figures representing a series of orthogonal function patterns and performs optical multiplications upon an original picture in comparison with each of the orthogonal function patterns. A summation device determines the expansion coefficients of the orthogonal functions for the whole original picture from the operation results obtained by the multiplication device. A quantizing and encoding device quantizes and encodes the orthogonal function expanding coefficients obtained by the summation device for compressing the data. The encoded data is transmitted to a picture restoring section which has the same optical system as the picture compressing section. This enables the system to conduct two-way picture encoding and restoring.
|
申请公布号 |
US5537492(A) |
申请公布日期 |
1996.07.16 |
申请号 |
US19930066588 |
申请日期 |
1993.05.25 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
NAKAJIMA, TAKAYUKI;CHIBA, SHIGERU;SATO, SHUN-ICHI;SUWA, AKIO |
分类号 |
G02F3/00;G02B27/46;G06E1/02;G06T9/00;H03M1/00;H04N1/41;H04N7/14;H04N7/30;(IPC1-7):G06K9/00;G06K9/36 |
主分类号 |
G02F3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|