Extraction of Camera Parameters Using Projective Invariance for Virtual Studio
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概要
- 論文の詳細を見る
Currently virtual studio has used the cromakey method in which an image is captured, and the blue portion of that image is replaced by a graphic image or a real image. The replaced image must be changed according to the camera motion. This paper proposes a novel method to extract camera parameters using the recognition of pentagonal patterns which are painted on the blue screen. The corresponding parameters are position, direction and focal length of the camera in the virtual studio. At first, pentagonal patterns are extracted through image processing, and the matched points of two projected patterns are found using invariant features of the pentagon. Then, the projective transformation of two projected images and the camera parameters are calculated using the matched points. Simulation results indicate that camera parameters are more easily calculated compared to the conventional methods.
- 社団法人映像情報メディア学会の論文
- 1998-01-15
著者
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NAKAJIMA Masayuki
Graduate School of Information Science & Engineering, Tokyo Institute of Technology
-
Han SeoWon
Graduate School of Engineering of Electronics, Chonbuk National University
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LEE JoonWhaon
Graduate School of Engineering of Electronics, Chonbuk National University
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Lee Joonwhaon
Graduate School Of Engineering Of Electronics Chonbuk National University
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Han Seowon
Graduate School Of Engineering Of Electronics Chonbuk National University
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Nakajima Masayuki
Graduate School Of Information And Engineering Tokyo Institute Of Technology
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Nakajima Masayuki
Graduate School of Information Science & Engineering, Tokyo Institute of Technology
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