采用DM3730的高清視頻采集與處理系統(tǒng)研究
[Abstract]:Video technology is more and more widely used in security surveillance, health care, video communication and other fields, and high-definition video application is the focus of development at present and in the future. The definition of the image is measured by the resolution of the image, the greater the resolution, the clearer the image means the larger the video data per frame, but at present most video applications on the market do not have the ability to capture and process high-definition video. One of the main reasons is that the previous embedded processors can not process high-definition video data. The technical bottleneck of this hardware hinders the development of embedded high-definition intelligent video processing system in medical, monitoring and other industries. Based on this background, this paper presents an embedded high-definition video acquisition and processing system with intelligent image processing function. In this paper, the present situation of video capture system is analyzed, and the overall design scheme of embedded high-definition video acquisition and processing system with intelligent image processing function is put forward based on the comparison of the advantages and disadvantages of the existing system. The detailed implementation process around this scheme is described in detail, which mainly includes the following: 1. System hardware design. Mainly including video capture, processor, power supply, USB, serial port, ISP,MMC,HDMI module circuit schematic design. 2. Embedded Linux software development platform. It includes kernel tailoring and porting, cross-compiling environment, BootLoader compiling and porting, file system making and so on. 3. The design of system software. Including video driver design and configuration, acquisition program design and image enhancement, edge detection, face tracking and other video processing algorithms. 4. QT interface design and OSD function realization. In general, the high-definition video capture and processing system in this paper can meet the requirements of 720p/30f, and in theory it can reach 720p / 60f. Support video image edge detection, image enhancement, face tracking, negative video processing functions and human-computer interface. The system has wide application prospects in medical image processing, security monitoring and other fields.
【學位授予單位】:蘇州大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:TP368.1;TP274.2
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