Patent ID: 8497937

Claim:
A converting device comprising: a first detecting unit detecting that inputted interlaced video signals meet a first standard when a sum of absolute differences gets less than a first threshold value at a predetermined timing, the sum of absolute differences obtained by comparing each of fields of the inputted interlaced video signals; a second detecting unit detecting that the inputted interlaced video signals meet a second standard when the sum of absolute differences becomes equal to or larger than the first threshold value and equal to or smaller than a second threshold value at the predetermined timing; a first converting unit converting, when detecting that the interlaced video signals meet the first standard, the interlaced video signals into progressive video signals on the basis of the video transmission sequence; a second converting unit converting, when detecting that the interlaced video signals do not meet the first standard but meet the second standard, the interlaced video signals into the progressive video signals on a pixel selective basis; and a third converting unit converting, when detecting that the interlaced video signals meet neither the first standard nor the second standard, the interlaced video signals into the progressive video signals by a motion adaptive type interpolation process or a motion compensated type interpolation process.