Camera device, camera control method, and recording medium

Abstract

The present invention relates to an imaging device and an imaging control method. The imaging device includes: a timing generator that generates a frame synchronization signal of a constant cycle, receives a reference signal generated at predetermined intervals based on a predetermined reference cycle, and compares the generation timing of the received reference signal with the frame synchronization generated by the timing generator. The generation timing of the signal is adjusted based on the comparison result to adjust the generation period of the frame synchronization signal generated by the timing generator.

Description

technical field [0001] The present invention relates to an imaging device and an imaging control method having a function of generating a frame synchronization signal of a constant period. Background technique [0002] Conventionally, in order to improve the synchronization accuracy when a plurality of cameras (cameras) are synchronized for photographing, the following technology is known (for example, refer to Patent Document 1): each camera receives the accuracy from outside such as GPS (Global Positioning System, Global Positioning System). Based on the high reference time signal, the timing control units of the respective cameras synchronize the generation timings of the frame synchronization signals generated at a constant cycle with each other. According to the technology described in this patent document 1, since the timing deviation is corrected based on the absolute reference time, the relative deviation between the cameras is not considered, and only the timing dev...

AI Technical Summary

Problems solved by technology

[0004] However, in the technology described in the above-mentioned Patent Document 1, the cycle of the frame synchronization signal of one's own camera is shifted from the cycle of the frame synchronization signal of other cameras or the reference time signal obtained from the outside only at a predetermined time. The timing deviation accumulated over time cannot avoid the fact that the deviation of the frame synchronization signal due to the cycle deviation accumulates itself

Therefore, when there is a period in which the external reference time signal cannot be received, such as the deterioration of the GPS reception condition, the gradually widening timing deviation may increase.

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