Design of an embedded system for real-time lane detection based on the linear Hough transform

摘要

Modern Advanced Driver Assistance Systems (ADAS) require the ability to sense and process information in real-time. More specifically, these devices need to accurately and quickly detect lanes in images. The Hough transform (HT) is a very accurate method of finding lines in a still image. In order to meet real-time requirements and low power consumption, a proposed hardware architecture design for the Hough transform in a real-time lane detection system is presented. This design efficiently and aggressively utilizes the DSP and embedded memory blocks in a configurable platform to speed up the HT calculation as well as reduce the resource requirements of the system. The proposed design utilized a parallel-pipeline architecture to allow for full area coverage of all line possibilities while optimizing for hardware restrictions. Initial results have shown that the proposed design achieve a normalized processing rate of 6.06 ns per pixel which is suitable for real-time lane detection application.