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Abstract:Video image acquisition and processing technology had a broad application prospect in the long distance supervisory control with video and video telephone. Driving video acquisition equipments and gaining video data to process accordingly are the basis of realization the applications. Aiming at the applications, designed a video acquisition and transmission system based on PXA270 with embedded Linux. The system used USB camera combined with Video4Linux to implement video data acquisition, then were encoded in JPEG, and sent by Ethernet under the control of the PXA270. In the end, compiling and transplanting the webcam server application, actualized real-time video image acquisition. The experimental results shows that the system can be refreshed dynamically better, and it is very useful and practical.
Keywords:PXA270; embedded Linux; USB camera; image acquisition and transmission
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