METHOD AND APPARATUS FOR TELECINE DETECTION

摘要

A method for detecting telecine mode in a sequence of video fields includes comparing a first video field and a second video field of the video sequence to determine if one of the first and second fields is a repeat field and declaring telecine mode if a sequence of repeat field corresponds to a telecine pattern. The comparing includes comparing the first field and the second field to generate a difference indication and declaring a repeat field if the difference indication is less than a threshold. The declaration of telecine mode is monitored and the threshold is increased unless stable telecine mode detection occurs or a threshold ceiling is reached. An apparatus for detecting telecine mode in a sequence of video fields includes repeated field detection logic for comparing a first video field and a second video field of the video sequence to determine if one of the first and second fields is a repeat field and telecine pattern detection logic for declaring telecine mode if a sequence of repeat fields corresponds to a telecine pattern.