发明名称 |
SYSTEM AND METHOD FOR IMAGE EDGE DETECTION AND REFLECTION USING DISCRETE COSINE TRANSFORMS |
摘要 |
The image processing system of the present invention provides electronic edge detection in keeping with ISO/JPEG/MPEG international compression standards for electronic imaging. Specifically, a novel electronic image processing system for edge detection includes: an image acquisition device for acquiring and representing an image as an electronic image signal; a video memory for storing the image signal; a display for displaying the image signal; a raster to block converter for converting the image signal into block format; a DCT/IDCT processor for transforming the converted signal in accordance with predetermined basis matrices stored in a basis matrix memory; a mask multiplier for generating a mask multiplied signal in accordance with predetermined Laplacian matrices stored in an A matrix memory; a buffer for storing the mask multiplied signal; and a controller for controlling the image processing system in accordance with instructions from a central processing unit (CPU). |
申请公布号 |
EP0771448(A1) |
申请公布日期 |
1997.05.07 |
申请号 |
EP19960905226 |
申请日期 |
1996.01.30 |
申请人 |
POLAROID CORPORATION |
发明人 |
WOBER, MUNIB, A.;REISCH, MICHAEL, L.;YANG, YIBING |
分类号 |
H04N5/262;G06F17/14;G06T3/40;G06T5/00;G06T5/20;G06T9/00;H04N7/26;H04N7/30;H04N7/46;H04N9/04 |
主分类号 |
H04N5/262 |
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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