Image Acquisition System And Implementation Of Dsp-based Eye Move

Eye-Movement picture is an important basis of judging vertigo. The analysis and application of Eye-Movement has made quickly progress in resent years. The aim of this task is to design a portable and feasible Eye-Movement Measurement System (EMMS ) based on the methods of rolling stimulation and Video-Oculo Grapy(VOG) so as to researching the effect of anti-vertigo medicine.Paper designs a Eye-Movement image capturing system based on DSP, CPLD and S AA7111. In the way of capturing, paper gives out a capturing scheme based on CPLD and SAA7111. The difficulty of which SAA7111's initialization is overcome successfully by virtual I2C-BUS interfacing design. Paper also puts forward a new methord of extending memorizer and overcome the difficulty which the data memorizer of DSP can not store image. During the process of JPEG compressing, paper brings forword a fast DCT arithmetic based on the multiplication progression cell of DSP. It is proven to be correct by VC++ software. In the way of translation, it designs a wireless translation circuit based on nRF2401 and brings out the software flowing design of wireless communication. Furthermore, paper simply introduces several key problem of the design of DSP application system and the way of Boot Loader. Paper also offers the design schematic picture and VHDL source code.At the end of paper, all modules' detailed hardware circuits and system design's experiences are given. Aiming at the lack of this system, the paper brings forward some new solutions to improve system's performance at the end of this paper.In this paper, the research is given support of the Aviation Science Foundation of China (041153036) and Horizontal Subject (N3EK1017).