Design And Implementation Of HD Video Analysis Platform Based On DM8127

In recent years, with the development of video processing technology, video analysis technology is widely used in surveillance, Internet of Things and other industries. Video analysis technology also puts forward various requirements, including high-definition, intelligence and networking.And the dependencies between high-definition technology and intelligenttechnology become more and more obvious. Video analysis technology has two forms based on different scenarios: front and rear. Both of them have separate applicability andcoexist for long time.In this regard, this paper has designed and developed a high definition front-facing video analysis platform based on TI’s DaVinci series DSP chip- DM8127. This platform can get high-definition digita image from the lens by CMOS sensor. The pretreated HD images can be used for subsequent analysis, and extracting useful information within the scene. Meanwhile, the platform has the capability for network video transmission which can presents the video to the user’s IE browser through streaming media technology. The interaction through the internet is realized by this way.This paper has made a detailed introduction from three aspects in turn: the design of hardware system, the build of development environment and the software design of system. The design of hardware system includes the structure of the hardware platform, chip selection, the design of system scheme, the design of schematic circuit diagram, debugging and testing of hardware platform. On the side of software design of system, the paper introduces the following aspects: the Linux system porting at the ARM side, the implementation of the driver of image sensor and Human face detectionapplications in TI’s McFW framework. On the bulid of the development environment side, the platform operating system, the software used in development, the cross-compiler and other content have been introduced. Finally, the paper analyzes the existing shortcomings of current system, and proposes subsequent work of corresponding rectification and improvement according to the causes of these deficiencies.