Research And Implemention On Panoramic Vision-Oriented Multichannel Video Capture And Processing System

This thesis presents the research about Panoramic Vision-Oriented Multichannel video Capture and Processing System. Panoramic visual driver assistance system were proposed to generate a panoramic view image to assist the drivers.Multi-channel video capture and processing technology is critical section in the Panoramic visual driver assistance system. It need capture different channel video simultaneously. By doing so, the Panoramic view finally display naturally.Traditional Multi-channel video capture system capture different video by switching channel automatic.When It work on a channel,other videos will miss.This thesis proposed a method with six-channel based on FPGA, which is real-time, high-definition and capture different video simultaneously. The system can capture and cache six channel videos, display them in the same monitor through a scaler.The system includes six-channel video capture module,six-channel video storage module,video de-interlacing and color space convert module,displaying module. This thesis analyzed the basic principles of each function modules,the characteristics and design demands of data communication, finally implemented on the FPGA with by Verilog.The ultimate results satisfy the system design demands.The key technologie in this thesis is high-speed data cache and video scaler. This thesis channel realized a multiport SDRAM controller. A SDRAM can simultaneously cache three videos under the controller.Chapter 4 mainly talks about video scaling algorithm which is applied to "FPGA scaling engine". Accelerated by FPGA, the system is both accurate and fast enough for real-time and high resolution requirements.