Kar-Han Tan and Narendra Ahuja. Selecting Objects with Freehand Sketches, Proc. International Conference on Computer Vision, Vancouver, Canada, July 2001, 337-344.
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Kar-Han Tan and Narendra Ahuja. A Representation for Image Structure and its Application in Object Selection with Freehand Sketches. In Proceedings IEEE Computer Society Conference on Computer Vision and Pattern Recognition 2001.
Abstract and Full Text