Patent ID: 6154257
Filing Date: 2000-11-28
Classification: H04N,Y10S

Abstract:
A method for identifying an input video signal, the steps comprising:detecting a first correlation between a present field of the input video signal and a one-field preceding field, and a second correlation between the present field and a one-field succeeding field, the first correlation being provided by adding together points which are flat in a vertical direction and moving in a horizontal direction in a range where the correlation between the present field and the one-field preceding field is larder than a correlation between the present field and the one-field succeeding field, the second correlation being provided by adding together points which are flat in the vertical direction and moving in the horizontal direction in a range where the correlation between the present field and the one-field succeeding field is larger than a correlation between the present field and the one-field preceding field;comparing the first correlation and the second correlation with each other; anddetermining the input video signal as a telecine-converted video signal when either of the first correlation or the second correlation is larger than the other correlation.