Toklu, C.Erdem, A. T.Sezan, M. I.Tekalp, A. M.2016-02-082016-02-081996-111077-3169http://hdl.handle.net/11693/25762We propose a method for tracking the motion and intensity variations of a 2-D mildly deformable image object using a hierarchical 2-D mesh model. The proposed method is applied to synthetic object transfiguration, namely, replacing an object in a real video clip with another synthetic or natural object via digital postprocessing. Successful transfiguration requires accurate tracking of both motion and intensity (contrast and brightness) variations of the object-to-be-replaced so that the replacement object can be rendered in exactly the same way from a single still picture. The proposed method is capable of tracking image regions corresponding to scene objects with nonplanar and/or mildly deforming surfaces, accounting for intensity variations, and is shown to be effective with real image sequences.EnglishDigital signal processingHierarchical systemsSurface propertiesVideo signal processingIntensity variationsMesh modelingSynthetic object transfigurationTracking motionImage processingArticle10.1006/gmip.1996.00461090-2481