MULTI-CHANNEL IMAGE SIGNAL CAPTURING METHOD AND SYSTEM IMPROVING FRAME RATE AND REDUCING LOSS OF FRAMES

摘要

PURPOSE: A multi-channel image signal capturing method and system is provided to extract synchronizing signals of image signals according to channels to decide an optimum capture sequence, and to capture the multi-channel image signals by the capture sequence, thereby increasing the number of captured frames per second. CONSTITUTION: A multiplexer(310) receives a plurality of image signals from a plurality of channels, and selectively outputs the plurality of image signals. An image synchronizing signal separator(320) extracts synchronizing signals from the plurality of image signals. A synchronizing signal storage(330) stores according to channels the relative start time of the synchronizing signals corresponding to each channel and the cycle of the synchronizing signals corresponding to each channel in association with the relative start time, on the basis of a synchronizing signal of one of the plurality of image signals. A capture sequence decider(340) decides the capture sequence of the plurality of image signals, based on the relative start time and the cycle. An image capture unit(350) captures the plurality image signals sequentially in accordance with the decided capture sequence.