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Definition of Visibility in Three Dimensional Space by CG Technology for Security Cameras/Guards
Mitsunori Makino 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
This paper proposes a revised definition of visibility of objects for generalized 3D art gallery problem, to which the ray tracing algorithm is introduced. The proposed visibility provides level of direct/indirect surveillance from single/multiple viewpoints such as cameras and/or guards, which takes 3D location, mirroring, transmitting, dust effect and obstruction into account. The proposed method regards specular reflection (highlight) effect of the targets as interference for the visibility, while the previously proposed method does it as either positive or negative for the visibility. The proposed visibility is expected to evaluate targets with high priority on recognition.
A Visual Alarm System of Surrounding Beep Sounds
Yuzuru Nakashima,Mitsunori Makino 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
This paper proposes a visualization of surrounding beep sounds which warns a user visually. For people with hearing loss and people under heavy sound, it is impossible or hard to detect important beep sounds which warn their danger. Representing such acoustic warnings as visual icons, the proposed method enables them to detect clearly their surrounding situation. The proposed method is assumed to be visual representation system on adequate mobile/wareble devices which can detect sounds. Simulation result on usual PC shows good performance to achieve the purpose.