CORRELATION EXTRACT METHOD FOR GENERATING 3D MOTION DATA, AND MOTION CAPTURE SYSTEM AND METHOD FOR EASY COMPOSITION OF HUMANOID CHARACTER ON REAL BACKGROUND IMAGE USING THE SAME
First Claim
1. A method of correlation extraction for generating three-dimensional (3D) motion data, the method comprising the steps of:
- obtaining a geometric relation between a calibration frame and a background marker or a corner point in a real background;
obtaining 3D geometric relative positions of a camera for motion capture and the background marker or the corner point, from the obtained geometric relation through the calibration frame; and
extracting a correlation between the camera for motion capture and a moving camera for capturing a real background, through obtaining 3D geometric relative positions of the camera for motion capture and the camera for capturing a real background, from the obtained 3D geometric relative positions of the camera for motion capture and the background marker or the corner point.
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Abstract
Provided are a method for extracting a correlation to generate 3D motion data, and a motion capture system and method using the extracting method to easily compose a humanoid character on a real background image. Cameras for motion capture are installed in a real background capture location (such as an outdoor location or in a studio), and the correlation between motion capture fixed cameras and a moving camera for capturing a real background image is obtained to capture 3D motion data prior to performing motion capture for integrating a humanoid character, so that even when there is interaction between a 3D figure and an actual prop such as a chair or table within the captured space, a humanoid character can easily be composed with the real background.
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Citations
12 Claims
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1. A method of correlation extraction for generating three-dimensional (3D) motion data, the method comprising the steps of:
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obtaining a geometric relation between a calibration frame and a background marker or a corner point in a real background; obtaining 3D geometric relative positions of a camera for motion capture and the background marker or the corner point, from the obtained geometric relation through the calibration frame; and extracting a correlation between the camera for motion capture and a moving camera for capturing a real background, through obtaining 3D geometric relative positions of the camera for motion capture and the camera for capturing a real background, from the obtained 3D geometric relative positions of the camera for motion capture and the background marker or the corner point. - View Dependent Claims (2, 3)
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4. A motion capture system for easy composition of a humanoid character on a real background image, the motion capture system comprising:
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a calibration frame for calibrating positions of a fixed camera for motion capture and a moving camera for capturing a real background; a fixed camera for capturing the calibration frame and a background marker or a corner point in a real background, and movement of a moving subject; a moving camera for moving and capturing the real background; and a motion capture processor for generating 3D motion data that extracts and automatically integrates a geometric correlation of the fixed camera and the moving camera with the real background. - View Dependent Claims (5, 6, 7)
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8. A method of motion capture using a fixed camera for motion capture and a moving camera for capturing a real background, the method for easily integrating a humanoid character with a real background image, and comprising the steps of:
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extracting a geometric correlation of the fixed camera and the moving camera; and using the extracted correlation to capture motion of a real moving subject and generate 3D motion data automatically integrating the captured motion with the real background. - View Dependent Claims (9, 10, 11, 12)
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Specification