发明名称 |
Digital zooming system utilizing image buffers and employing an approximated bilinear interpolation method |
摘要 |
The present invention relates to a digital zoom system utilizing image buffers and employing an approximated bilinear interpolation method. The zoom system includes an analog-to-digital (A/D) converter for converting an analog image signal to a digital image signal, an image buffer for storing the digital image signal generated for said A/D converter, a horizontal operation circuit for interpolating the digital image signal taken along with a horizontal direction, one or more horizontal image buffers for storing the digital image signal for 1-horizontal lines magnified in a horizontal direction, a vertical operation circuit for interpolating said horizontally magnified image signal in a vertical direction, a timing controller for controlling the image buffer, said horizontal and vertical operation circuits, and a digital-to-analog (D/A) converter for converting the digital image signal resultedly magnified in the horizontal and vertical direction back to analog image signal.
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申请公布号 |
US5307167(A) |
申请公布日期 |
1994.04.26 |
申请号 |
US19920851498 |
申请日期 |
1992.03.16 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
PARK, SUNG-WOOK;PAIK, JOON-KI |
分类号 |
G06F3/153;G06T3/40;G09G5/36;H04N1/393;H04N5/228;(IPC1-7):H04N3/223;H04N5/14 |
主分类号 |
G06F3/153 |
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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