Inspec keywords: object detection; object tracking; traffic engineering computing; video signal processing

Other keywords: background subtraction; vehicle tracking; outdoor illumination condition; vacant parking area estimation; vehicle occlusion; video frame temporal analysis; Gaussian mixture; multiple moving object; nondelimited free parking areas; vehicle detection; static surveillance camera; transience map analysis

Subjects: Computer vision and image processing techniques; Optical, image and video signal processing; Traffic engineering computing; Video signal processing