IMAGE SYNCHRONIZATION METHOD AND SYSTEM THEREOF

摘要

Disclosure is an image synchronization method and system thereof being applied to a first image detection unit and a second image detection unit. The system comprises a monitoring unit, an extension interval generation unit and a control unit. The monitoring unit monitors the first image detection unit and the second image detection unit. When a time difference between output time of second image data and output time of first image data is larger than or equal to a postponed time threshold, a synchronization signal is transmitted by the monitoring unit. The extension interval generation unit bases the time difference and the rate of outputting the first image to generate an extension interval. When receiving the synchronization signal, the control unit adjusts the rate of outputting the first image by controlling the first image detection unit. Therefore, the first image data and the second image data could be synchronized.

主权项

1. An image synchronization method applied to a first image detection unit and a second image detection unit, the first image detection unit keeping outputting a plurality of first image data, and each of the plurality of first image data comprising a first start of frame and a first image content frame; the second image detection unit keeping outputting a plurality of image data, and each of the plurality of second image data comprising a second start of frame and a second image content frame, wherein image lengths of the first start of frame and the first image content frame are respectively equal to image lengths of the second start of frame and the second image content frame, a first image output speed V1 of the first image detection unit is higher than a second image output speed V2 of the second image detection unit, and the image synchronization method comprising:
(a) using a control unit to control the first image detection unit from (i+1)th first image data adding an extension interval to the first image content frame to increase the first image content frame as a first image content extension interval and enabling the first image output speed decreasing from V1 to V3 such that the output time of the second start of frame of (j+2)th second image data is equal to the output time of the first start of frame of (i+2)th first image data when a time difference between an output time of the second start of frame of jth second image data and an output time of the first start of frame of ith first image data is larger than a postponed time threshold; and (b) using the control unit to control the first image detection unit from (i+3)th first image data to remove the extension interval of the first image content extension interval such that the output times of the first start of frame of the (i+3)th first image data and the first image content frame are respectively equal to the output times of the second start of frame of (j+3)th second image data and the second image content frame, and the first image output speed being restored to V1.