Pfinder: Real-Time Tracking of the Human Body
IEEE Transactions on Pattern Analysis and Machine Intelligence
Comprehensive Colour Image Normalization
ECCV '98 Proceedings of the 5th European Conference on Computer Vision-Volume I - Volume I
Cast shadow segmentation using invariant color features
Computer Vision and Image Understanding
A 3D-polar coordinate colour representation well adapted to image analysis
SCIA'03 Proceedings of the 13th Scandinavian conference on Image analysis
Automated scene understanding for airport aprons
AI'05 Proceedings of the 18th Australian Joint conference on Advances in Artificial Intelligence
Fuzzy contour tracking of human silhouettes
FUZZ-IEEE'09 Proceedings of the 18th international conference on Fuzzy Systems
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We discuss common colour models for background subtraction and problems related to their utilisation. A novel approach to represent chrominance information more suitable for robust background modelling and shadow suppression is proposed. Our method relies on the ability to represent colours in terms of a 3D-polar coordinate system having saturation independent of the brightness function; specifically, we build upon an Improved Hue, Luminance, and Saturation space (IHLS). The additional peculiarity of the approach is that we deal with the problem of unstable hue values at low saturation by modelling the hue-saturation relationship using saturation-weighted hue statistics. The effectiveness of the proposed method is shown in an experimental comparison with approaches based on Normalised RGB, c1c2c3, and HSV.