Image pickup device

Details Image pickup device Image pickup device

H - Electricity

04

N

H04N 5/225 (2006.01) H04N 5/232 (2006.01) H04N 5/265 (2006.01) H04N 5/272 (2006.01) H04N 5/77 (2006.01)

Patent

CA 2499416

An image signal producing part (11) produces an image signal (DVb) of a variable-frame-rate picked-up image whose frame rate has been made variable. A frame rate converting part (30) converts the frame rate of an image signal (DVu) supplied thereto into the frame rate of the image signal (DVb) and synchronizes the image signal (DVu) with the image signal (DVb) to produce an image signal (DVw). A monitor image signal producing part (40) uses the image signals (DVb,DVw) to produce and output, as monitor image signals (DMTout,SMTout), an image signal (DVmix) of an image in which the images based on image signals (DVb,DVw) are mixed with each other. Alternatively, the monitor image signal producing part (40) produces and outputs, as the monitor image signals (DMTout,SMTout), an image signal (DVwp) of an image in which a portion of the image based on the image signal (DVb) has been replaced by the image based on the image signal (DVw). It is thus possible to simultaneously display the variable-frame-rate picked-up image and an image that has a different frame rate.

L'invention concerne une section de production de signal image (11) produisant un signal image (DVb) d'image saisie à fréquence de trame variable. Une section de conversion de fréquence de trame (30) convertit la fréquence de trame d'un signal image (Dvu) injecté en fréquence de trame de signal image (DVb) et synchronise les deux signaux pour donner un signal image (DVw). Une section de production de signal image de contrôle (40) utilise (DVb,DVw) pour produire en sortie les signaux image de contrôle (DMTmout, SMTout), un signal image (Dvmix) combinant les images fondée sur (DVb,DVw). La section (40) peut aussi produire en sortie (DMTmout, SMTout) ainsi qu'un signal image (DWwp) d'image dans laquelle une partie fondée sur (DVb) est remplacée par l'image reposant sur (DVw). On peut ainsi afficher simultanément l'image saisie à fréquence de trame variable et une image à fréquence de trame différente.

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