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基于FPGA的双目视觉同步采集系统 被引量:4

Binocular Stereo Vision Synchronous Acquisition System Based on FPGA
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摘要 该文提出一种象素级的双目视觉同步采集和传输系统,可满足立体视觉对左右视频输入严格同步的需求。该同步系统包含粗略到精确的两级同步设计:硬件电路级的粗略同步及基于硬件描述语言级的精确同步。通过双路视频采集与显示实验证明,该同步系统效果好、可靠性高。 This paper proposes a pixel-synchronous data acquisition and transmission system for binocular stereo vision,which satisfies strict synchronous requirement for stereo vision.This synchronization system uses a coarse-to-fine two-level synchronous design: the hardware circuit design of coarse level and the hardware description language design of elaborate level.The former includes clock synchronization and external trigger synchronization.The latter utilizes a multi-level synchronization control strategy from field-level to pixel-level synchronization.Specifically,the latter consists of a field-synchronous acquisition of the two channels video input,a two channels ping-pong buffers switch control module,and a pixel-synchronous bit-splicing and transmission.The experiments of synchronous acquisition and display demonstrate the high reliability and great performance of this synchronization system.
出处 《杭州电子科技大学学报(自然科学版)》 2011年第3期22-25,共4页 Journal of Hangzhou Dianzi University:Natural Sciences
基金 国家自然科学基金资助项目(60902077) 浙江省自然科学基金资助项目(Y1080967) 浙江省重大科技专项(优先主题)社会发展项目(C13076)
关键词 双目视觉 同步采集 乒乓缓存 可编程逻辑门阵列 binocular stereo vision synchronous acquisition ping-pong buffer FPGA
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