Patent ID: 7479978
Filing Date: 2009-01-20
Classification: H04N

Abstract:
1. A method for performing an inverse telecine process, the method comprising the steps of: calculating a Frame Totals of Absolute Local Field Difference (FT) for each frame of telecine images that are input at a rate of M frames per second; normalizing the Frame Totals of Absolute Local Field Difference (FT) and outputting a vector of normalized Frame Totals of Absolute Local Field Difference (NFT) that are normalized per every five frames, wherein the normalization is performed according to wherein, FTi is Frame Total Field Difference (FT) of the i-th frame, MD represents the median value of the Frame Total Field Difference (FT) of five consecutive frames, and K represents a denominator; comparing the vector of the normalized Frame Totals of Absolute Local Field Difference (NFT) in a five-frame unit to a reference template; and controlling the number of video frames input at the rate of M frames per second and the number of original film frames that are recovered from the input video frames and output at a rate of N frames per second.