System Hardware for Acquisition and Automatic Processing of Pavement DistressVideolog

摘要

Texas Department of Transportation (TxDOT) employs the Pavement ManagementInformation System (PMIS) to effectively manage and maintain its highway system. Pavement surface distress is a very important indicator of the condition of the roadway system. To gather the information in urban areas, TxDOT has purchased a multi-purpose road survey vehicle called the Automatic Road Analyzer (ARAN). The data reduction involves a technician who reviews video tapes of the pavement surface recorded by the ARAN. The review technique is a tedious and fatiguing process. Current advancements in dedicated imaging processing hardware enables the development of a computer processing system to reduce the pavement distress data automatically. The report describes two important areas of automatic evaluation of the pavement surface distress video. High resolution, sharp, and shadow free images of the pavement surface enable the computer processing to be more efficient and accurate.