A Method for Vehicle Occupant Height Estimation

Paper #:
  • 2017-01-1440

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-1440
Citation:
Chen, S., Dong, M., Le, J., and Rao, M., "A Method for Vehicle Occupant Height Estimation," SAE Technical Paper 2017-01-1440, 2017, doi:10.4271/2017-01-1440.
Pages:
7
Abstract:
Vehicle safety systems may use occupant physiological information, e.g., occupant heights and weights to further enhance occupant safety. Determining occupant physiological information in a vehicle, however, is a challenging problem due to variations in pose, lighting conditions and background complexity.In this paper, a novel occupant height estimation approach is presented. Depth information from a depth camera, e.g., Microsoft Kinect is used. In this 3D approach, first, human body and frontal face views (restricted by the Pitch and Roll values in the pose estimation) based on RGB and depth information are detected. Next, the eye location (2D coordinates) is detected from frontal facial views by Haar-cascade detectors. The eye-location co-ordinates are then transferred into vehicle co-ordinates, and seated occupant eye height is estimated according to similar triangles and fields of view of Kinect. From the seated eye height, the occupant height is estimated on the basis of human ergonomics data.
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