Study Of HD Video Acquisition And Processing System Based On DM3730

In the field of security monitoring, health care and video communications, videotechnology is more and more widely, HD video applications now and in the futuredevelopment priorities. Measure the clarity of the indicators is the image resolution, thegreater the resolution the sharp the image, but most video applications on the market do nothave HD video capture and processing capacity of its one of the main reasons is theembedded processors the ability to reach a HD video data. Hardware technology hindersthe development of the embedded HD video processing system. Based on this background,we propose an intelligent image processing functions HD video acquisition and processingsystem.To analyze and compare existing pros and cons of the video capture system, underproposed paragraph intelligent image processing functions embedded HD video acquisitionand processing system for the overall design scheme. Around the program details of aspecific implementation method, mainly include the following:1. System hardware design. Include video capture, the processor, power supply, USB,serial port, the ISP, MMC, the HDMI module circuit schematic design.2. Embedded Linux software platform. Include cropped transplantation of the systemkernel, cross-compilation environment to build, u-boot compile transplantation.3. System software design. Include video-driven design and configuration,acquisition program design and image increase, edge detection, face tracking andvideo processing algorithm.4. The QT interface design and realization of the OSD functions.Overall, this article for HD video acquisition and processing system, to achieverequirements of720p/30f, could theoretically reach720p/60f. Support video imageenhancement, face tacking, negatives and video processing capabilities and interactiveinterface. The system is a good prospect of application in the field of medic imageprocessing and security monitoring.