Sang Ahn

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— This paper deals with a real-time image based relighting system for tangible video teleconference. The proposed image based relighting system renders the extracted human object using the virtual environmental images. The proposed system can homogenize virtually the lighting environments of remote users on the video teleconference, or render the humans(More)
If IP networks are embedded over the facility networks such as ATM or DWDM, link addition or removal is easily accomplished by setting up or tearing down switched virtual circuits. Exploiting the flexibility of this light-overhead reconfiguration, we propose a dynamic topology reconfiguration scheme to improve network utilization and the quality of(More)
Massive weight loss results in skin excess, leading to an unsatisfying body contour. Various thigh lift procedures can correct flabby skin in the lower leg. We present a lower body contouring technique with a report on two patients. The procedure is determined by the body contour of the patient. As the skin excess in the thigh area tended to appear mostly(More)
PURPOSE Blowout fracture characterized by concurrent floor and medial wall fractures is a rare entity. We compared surgical outcomes between a single approach and a double approach in patients with orbital fracture by measuring the postoperative orbital volume. METHODS We confirmed that 21 (8.5%) of a total of 246 patients with orbital fractures had(More)
which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. The McIndoe operation is a widely performed surgical procedure for neovaginal reconstruction [1]. It creates a neovaginal cavity by dissecting between the bladder and rectum, and grafts skin to resurface a surgically(More)
which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Dermoid cyst is a type of choristoma that generally originates from a bony structure due to abnormal ectodermal sequestration during the course of development. Dermoid cysts can appear in any part of body but 7 percent(More)
nerve sheath tumours-report of 8 cases and review of the literature. which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Stewart-Treves syndrome is a kind of angiosarcoma associated with chronic lymphedema. It was first reported by Stewart and Treves [1] in 1948. In their(More)
93 [1]. Unlike permanent devices that have to be implanted surgically under general anesthesia, percutaneous catheter-ports may be installed under local anesthesia, a benefit for the many cancer patients who have already undergone cancer surgery. The subclavian route is also an option; however, there exists a risk of pneumothorax, reported to be around 4%,(More)
Adipose-derived stem cells (ASCs) possess multipotent differentiation capabilities, including the ability to repair and regenerate injured tissues. Recent studies have reported that ASCs have effects on fibroblasts that are related to wound healing. On the other hand, keloid is a result of pathologic wound healing, and keloid fibroblasts are known to have(More)