Patent ID: 6509933
Filing Date: 2003-01-21
Classification: H04N,Y10S

Abstract:
A video signal converting apparatus for creating an interpolated scanning signal from an input video signal by interlaced scanning and interposing an actual scanning signal of the input video signal and the interpolated scanning signal between each other to create a video signal by sequential scanning, the video signal converting apparatus comprising:a first detecting means for detecting a first correlation value between an interpolated field in the input video signal and a first field located one-field-period-before the interpolated field; a second detecting means for detecting a second correlation value between an interpolated field in the input video signal and a second field located one-field-period-after the interpolated field; a first deciding means for deciding whether or not the interpolated field is a telecine-converted video signal and deciding an interpolating method for the interpolated field where the interpolated field is the telecine-converted video signal; a second deciding means for deciding whether or not the interpolated field is an editing point field of a film frame of one field; and an interpolated signal creating means for setting the interpolating processing for the interpolated field at either of adaptive interpolating processing and film interpolating processing in response to the decision results of the first and the second deciding means to create the interpolated scanning signal, wherein if it is decided that the interpolated field is the telecine-converted video signal on the basis of the decision result of the first deciding means, the interpolated signal creating means sets the interpolating processing for the interpolated field at the film interpolating processing to create the interpolated scanning signal; and if it is decided that the interpolated field is the editing field on the basis of the decision result of the second deciding means, the interpolated signal creating means sets the interpolating processing for the interpolated field at the adaptive interpolating processing to create the interpolated signal.