公开(公告)号：JPH08167033A

公开(公告)日：1996-06-25

申请号：JP4214895

申请日：1995-03-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： I YON SON ,  I JIN FUAN ,  HO YO SON ,  JIYON JIYU HON

IPC: H04N5/87 ,  G06T9/00 ,  H04N5/253 ,  H04N5/92 ,  H04N7/01 ,  H04N19/00 ,  H04N19/129 ,  H04N19/134 ,  H04N19/142 ,  H04N19/157 ,  H04N19/162 ,  H04N19/196 ,  H04N19/85 ,  H04N19/87

Abstract: PURPOSE: To encode an image signal by means of 24Hz frame rate when the video signal is converted from a video film. CONSTITUTION: A condition generating part 20 judges whether or not a film mode is the one where a still image is considered by an average absolute difference value through the use of a film mode condition generating signal from a video signal detecting part 10. A mode converting part 30 outputs a film mode despatch signal considering scene conversion at the time of scene conversion. Then, a video mode judging part 40 operates a counter by utilizing a clock signal which is generated at the time of a film mode condition generated from the video signal detecting part 10. Then, the videomode judging part 40 compares the output value of the counter with an optional threshold value which is set by an operator so that the film mode is recognized when the counter output value is largher than the threshold value.