Frame-shift detecting device and a video-recording apparatus

Details Frame-shift detecting device and a video-recording apparatus Frame-shift detecting device and a video-recording apparatus

H - Electricity

04

N

H04N 5/77 (2006.01) G11B 31/00 (2006.01) H04N 5/232 (2006.01) H04N 5/262 (2006.01) H04N 5/12 (2006.01)

Patent

CA 2164238

A frame-shift detecting device includes: a movement-vector detecting portion determining a movement-vector between image frames by comparing a preceding image frame with a current image frame during image taking; and a frame-shift detecting portion for summing up horizontal and vertical components of the movement-vector separately in order to detect a shift-direction or shift-quantity of the image-pickup frame from the start of counting operation. A video recording apparatus includes: a video recording portion for recording image frames during image taking; a movement-vector detecting portion; and a frame-shift detecting portion, and the video recording portion records a first video frame at the start of the counting operation and a second video frame at the time when the frame-shift detecting portion detects that the image-pickup frame has been shifted by a specific shift distance.

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