Y
Yoshiaki Usami
Researcher at Hitachi
Publications - 53
Citations - 1190
Yoshiaki Usami is an academic researcher from Hitachi. The author has contributed to research in topics: Object (computer science) & Display device. The author has an hindex of 14, co-authored 53 publications receiving 1187 citations.
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A simple method for extracting the natural beauty of hair
TL;DR: A simple differential equation method is proposed for modeling the aesthetic features of human hair, which allows hairdressing variations with volumetric and realistic appearance and gives visually satisfactory results by solving the projective equations under a ps~udo-force field.
Patent
Method, device and system for recognizing action and behavior
Tsutomu Nishioka,Shiro Nonaka,Shigeru Obo,Katsuo Tashiro,Munetoshi Unuma,Yoshiaki Usami,Satoru Yashiki,芳明 宇佐美,屋敷 知,茂 於保,勝男 田代,勉 西岡,士郎 野中,宗利 鵜沼 +13 more
TL;DR: In this paper, the authors proposed a method to automatically recognize the action and behavior of a moving body such as a human being, animal, or machine by measuring the change of state caused by the actions and behaviors of a subject.
Patent
Apparatus and method for recognizing three-dimensional shape of object
TL;DR: In this article, a three-dimensional shape of an object is recognized by developing enveloping surfaces of the object by a cone-silhouetting method, wherein the object is picked up by a binocular 3D vision method by making use of geometrical restraint conditions derived by the cone.
Patent
Method and apparatus for generating object motion path, method of setting object display attribute, and computer graphics system
Norito Watanabe,Atsushi Kawabata,Tsugio Tomita,Sakai Toshio,Yasuo Sasaki,Yoshiaki Usami,Akihiro Sakamoto,Kengiro Sato +7 more
TL;DR: In this article, the rotary angle and angular velocity of an object can be used to represent the facing direction of the object and a display device for displaying information of the position and an icon representative of the time corresponding to the position of a given object.
Patent
Displaying method and apparatus for three-dimensional computer graphics
TL;DR: In this article, a display unit displays the first three-dimensional model or the second 3D model as selected by reference to a preset index for evaluation, and a second memory stores the simplified model, by varying at least one of the first dimensions, the first number of parameters and the first parametric quantities.