Patent ID: 8144248
Filing Date: 2012-03-27
Classification: H04N

Abstract:
1. A scan conversion apparatus for converting an interlace video signal into a progressive image signal, comprising: a first interpolation pixel generation unit for generating an interpolation pixel of a nonexistent line for one of images of two fields of same parity based on a motion vector detected between images of the two fields; a second interpolation pixel generation unit for generating an interpolation pixel of a nonexistent line by using a pixel within a field for an image of the field for which an interpolation pixel is generated by the first interpolation pixel generation unit among the images in the two fields; an erroneous-interpolation detection unit for detecting an erroneous interpolation among interpolation pixels generated by the first interpolation pixel generation unit based on a comparison with a pixel existing in the upper and lower lines; an output unit for outputting a video image signal by using an interpolation pixel generated by the first and second interpolation pixel generation units based on the detection result of the erroneous-interpolation detection unit.