A binocular stereopsis system combined massively parallel analog networks with FPGA

将模拟生物视觉系统的大规模并行模拟网络与现场可编程门阵列(现场可编程门阵列)相结合，开发了一种高速、高精度、低功耗的双目立体视觉系统。采用0.18um工艺制作了开关电容网络和插补网络。前者实现了双目立体视觉的预处理和相似度计算。后者根据相似性结果生成视差图。通过由现场可编程门阵列组成的视觉系统，验证了这些芯片的预期功能和性能指标。

A high speed, high precision and low power binocular stereopsis system was developed by combination massively parallel analog networks mimicked the biological visual system and FPGA (Field Programmable Gate Array). A switched-capacitor network and an interpolation network were fabricated in 0.18um CMOS technology. The former realizes preprocessing and similarity calculation for binocular stereopsis. The latter makes disparity map in accordance with the similarity result. These chips were confirmed desired function and specification as the stereopsis system by a vision system consisting of FPGA.