A.3.6.1 Single obstacle detection and avoidanceA.3.6.2 Multiple obstacle detection and avoidanceA.3.6.3 Hybrid Adaptive Cruise Control (1999)A.3.6.4 Long-lead-time studies or more demanding vision tasksA.3.6.4a Recognition of 3-D shape and occlusion of trucksA.3.6.4b Perception of horizontal and vertical curvatureA.3.6.4c Recognition of humans in traffic scenesA.3.6.4d Detection and recognition of ditches