A programmable parallel processor LSI for video-based driver assistance systems

This paper describes a fully programmable parallel processor LSI which integrates 128 SIMD RISC microprocessors, each operates in 100 MHz. The LSI achieves simultaneous and real-time multiple processing of driver assistance video recognition applications in software, while at the same time satisfies power efficiency requirement of an in-vehicle LSI. Based on four basic parallel methods and a software development environment including an optimizing compiler of an extended C language and video-based GUI tools, efficient development of real-time video recognition applications which effectively utilize the 128 micro-processors are facilitated. Result of a benchmark test using a high level language written for a robust lane-mark and vehicle detection application shows that the LSI can provide a four times better performance compared with a 2.4 GHz general purpose processor.