| 摘要 |
In a scanning line interpolation apparatus, a scanning line delay element obtains a signal B by delaying an image input signal D by one scanning line. A first pixel delay element obtains a signal A by delaying the signal B output from the scanning line delay element by one pixel. A second pixel delay element obtains a signal C by delaying an input signal D by one pixel. A level comparator compares correlation of the signals A, B, C, and D to detect signals of pixels having the strongest correlation from the four pixels corresponding to the signals A, B, C, and D. An interpolated data calculator performs average value processing on the basis of detection results of the comparator to generate interpolated data Z. The scanning line delay element and the first and second pixel delay elements generate the four pixel signals A, B, C, and D of two pixels on an upper scanning line n of the input signal D and two pixels on a lower scanning line n+1 adjacent to the upper scanning line n. The interpolated data calculator generates the interpolated data Z using the pixels having the strongest correlation.
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