A 216 GOPS flexible WDR Image Processor for ADAS SoC

Abstract

Advanced Driver Assistance Systems (ADAS) enhance the ability of a vehicle driver to avoid possible road accidents resulting in a safer driving experience. Front camera ADAS is probably the most challenging of all. These systems require high computational processing, in the range of hundreds of GOPS, within a 4 Watt power budget driven by thermal constraints of small enclosed assembly of the final system. In this paper, we present, Wide Dynamic Image (WDR or HDR) Processor as part of the Imaging Sub-system (ISS) that is flexible to interface with various kinds of optical sensor across different manufactures. The design achieves an overall throughput of 216 GOPS with performance efficiency of 66.4 GOPS/mm2 and power efficiently of 1.8 TOPS/W.