发明名称 |
Optical information processing apparatus and method using computer generated hologram. |
摘要 |
<p>There is disclosed optical information processing apparatus and method wherein an input image of an object is optically Fourier-transformed and after coordinate-transforming the Fourier-transformed input image optically to obtain a rotation-invariant and scale-invariant image, the resultant image is pattern-matched with a computer generated hologram of a reference image. The coordinate-transformation of the Fourier-transformed input image is made using an optical phase filter represented as a computer generated hologram. <IMAGE></p> |
申请公布号 |
EP0460625(A2) |
申请公布日期 |
1991.12.11 |
申请号 |
EP19910109168 |
申请日期 |
1991.06.05 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ITOH, MASAMI;NISHII, KANJI;KAWAMURA, HIROYUKI;FUKUI, ATSUSHI |
分类号 |
G02B27/46;G02F3/00;G03H1/08;G03H1/16;G06K7/12;G06K9/74;G06K9/76;G06T7/00 |
主分类号 |
G02B27/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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