Design And Implementation Of Panoramic Camera Image Compression System

Panorama pick-up is a technology which uses a camera to pick up a group or a series of images, and then the images can be stitched into a panorama. The technology can realize to observe the real scene omni-directionally and interactively by means of the computer technology. Panoramic camera involves many fields such as digital city, video surveillance, television-guided missiles, machine vision, robotics, self-positioning and navigation and other domains. It provides an ideal experiment platform in image processing, computer technology, robot vision, artificial intelligence and other disciplines.Panoramic camera system consists of image acquisition system, image integration system, image compression system and data communication system. In the whole system, Image compression system is the core. It plays an important role and its performance has a direct impact on the real-time issues and image quality in panoramic camera system. According to the above background and the practical needs of panoramic camera, this thesis has devised an overall design of panoramic camera system based on JPEG image compression.This thesis researchs a design scheme of panoramic camera JPEG compression system based on TMS320DM642, a DSP chip, develops a video receiver driver program and PCI communications driver program. Firstly, a brief historical retrospect and present status of panoramic camera image compression system is given. Secondly, it makes a particular analysis about the overall design of panoramic camera image compression system. Then, the thesis designs the video interface module, SDRAM data storage module, FLASH programmer module, PCI communication module and system power module in panoramic camera image compression system in detail. Afterward, in the new software compiler environment CCS, it introduces the whole program flow, including the main program, video port driver program and PCI driver program. Finally, the thesis achieves JPEG compression algorithm on TMS320DM62 plantform and verifies the theory through the experiments. At the end of the thesis, the achievements of this thesis are summarized and some improvements in the future are proposed.