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- W2324595593 abstract "Chromakey method is one of key technologies for realizing virtual studio, and the blue portions of a captured image in virtual studio, are replaced with a computer generated or real image. The replaced image must be changed according to the camera parameter of studio for natural merging with the non-blue portions of a captured image. This paper proposes a novel method to extract camera parameters using the recognition of pentagonal patterns that are painted on a blue screen. We extract corresponding points between a blue screen and a captured image using the projective invariant features of a pentagon. Then, calculate camera parameters using corresponding points by the modification of Tsai's method. Experimental results indicate that the proposed method is more accurate compared to conventional method and can process about twelve frames of video per a second in Pentium-MMX processor with CPU clock of 166MHz." @default.
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- W2324595593 date "1999-01-01" @default.
- W2324595593 modified "2023-09-27" @default.
- W2324595593 title "Three-Dimentional Image Information Media. The Camera Calibration using Projective Invariance for Virtual Studio." @default.
- W2324595593 doi "https://doi.org/10.3169/itej.53.417" @default.
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