Many boundaries between objects in the world project onto curves in an image. However, boundaries involving natural objects (e.g., trees, hair, water, smoke) are often unworkable under this model because many pixels receive light from more than one object. We propose a technique for estimating alpha, the proportion in which two colors mix to produce a color at the boundary. The technique extend...

We present a multi-view alpha matting method that requires no user input and is able to deal with any arbitrary scene geometry through the use of depth maps. The algorithm uses multiple observations of the same point to construct constraints on the true foreground color and estimate its transparency. A novel free viewpoint rendering pipeline is also presented that takes advantage of the generat...

This paper proposes techniques to fabricate synthetic gecko foot-hairs for future wall-climbing robots, and models for understanding the synthetic hair design issues. Two nanomolding fabrication techniques are proposed: the first method uses nanoprobe indented flat wax surface and the second one uses a nano-pore membrane as a template. These templates are molded with silicone rubber, polyimide,...

Hairstyle is one of the most important features people use to characterize one’s appearance. Whether a hairstyle is suitable or not is said to be closely related to one’s facial shape. This paper proposes a new technique for automatically retrieving a suitable hairstyle from a collection of hairstyle examples through learning the relationship between facial shapes and suitable hairstyles. A met...

The light and electron micrscopic findings in an eye enucleated from a 38-year-old woman with iris naevus (Cogan-Reese) syndrome are presented. The clinical manifestations of this disease, namely, iridic stromal matting, iridic nodule formation, and unilateral angle-closure glaucoma, appear to be secondary to an endothelial membrane on the anterior surface of the iris. The iris naevus syndrome ...

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We developed an automatic object segmentation system to separate the foreground objects from the background scene in the MPEG video sequence. The system consists of two modules: the background modeling and updating module and the foreground object extraction module. For the first module and comparing to existing methods, the background model can be constructed no matter whether there exist movi...

We present a method that utilizes bracket sequence images to automatically extract the alpha matte of a motion-blurred object. This method makes use of a sharp, short-exposure snapshot in the sequence to help overcome major challenges in this task, including blurred object detection, spatially-variant object motion, and foreground/background color ambiguity. A key component of our matte estimat...