TV wall image amplification interpolation method
An interpolation method, a technology of a video wall, applied in the direction of TV, color TV, image communication, etc.
Inactive Publication Date: 2003-09-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[0008] In order to overcome the shortcomings of the above-mentioned interpolation scheme, the task of the present invention is to provide a TV that can significantly reduce the mosaic effect caused by the video wall image enlargement, image blurring, and especially eliminate the gray level jump of the point-like noise. Wall image enlargement interpolation method
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[0048] If you want to enlarge the image of a 3×3 computer or TV with a resolution of 640×480, you can choose the following scheme: first use the A / D converter to obtain RGB (red, green, blue) three-color digital signals, and then use 1024 -15n memory, and programmable logic devices to realize address reading and writing, median filtering and text feature matching. A normal D / A converter can then be used as needed. Finally, the high-quality enlarged image can be seen by outputting it to a monitor or a TV set.
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This invention provides a method for a TV wall picture amplified interpolation used in TV wall display, firstly exchanging diagonal pel to realize amplified adjacent domain exchange interpolation, then applying cross mean value filter for cross mean value filtration, eliminating gray hopping points as point noise from the adjacent exchange interpolation and using the method text character to improve its display.
Description
Technical field [0001] The invention relates to a video wall display system in the field of electronic technology, in particular to a video wall image enlargement and interpolation method. Background technique [0002] At present, known video wall image enlargement and interpolation methods include methods such as repeated interpolation, linear interpolation, and neighborhood exchange interpolation, among which repeated interpolation and linear interpolation are the most widely used. Neighborhood exchange interpolation is also called neighborhood interpolation. [0003] The repeated interpolation method directly uses the pixel values in the original image for interpolation, and the implementation method is very simple: let the address generator repeatedly generate the same read address. Using the same read address, the same data will be output, which realizes repeated interpolation. The number of times the same address is reused is the magnification factor, as shown in F...
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IPC IPC(8): H03H17/02H04N5/64
Inventor 成建波吴援明杨健君
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA