Abstract: A calibration method of a stereo camera includes optionally setting a plurality of camera calibration parameters and a plurality of image rectification parameters of the stereo camera; executing an image capture step on at least one left eye pattern and at least one right eye pattern corresponding to each two-dimensional image of at least one two-dimensional image; generating a plurality of new camera calibration parameters according to a plurality of first images corresponding to all left eye patterns corresponding to the at least one two-dimensional image and a plurality of second images corresponding to all right eye patterns corresponding to the at least one two-dimensional image; and generating a plurality of new image rectification parameters of the stereo camera according to the plurality of new camera calibration parameters.

Abstract: An attachable three-dimensional scan module includes an attachable unit, at least two image sensing units, a depth map generation unit, and an output interface. The attachable unit fixes the attachable three-dimensional scan module on a mobile device. When the mobile device is moved around an object, a first image sensing unit and a second image sensing unit of the at least two image sensing units capture a plurality of first images including the object and a plurality of second images including the object, respectively. A plurality of depth maps generated by the depth map generation unit, the plurality of first images, and the plurality of second images are used for generating a color three-dimensional scan result corresponding to the object. The output interface outputs the color three-dimensional scan result, or the plurality of first images, the plurality of second images, and the plurality of depth maps.

Abstract: An attachable three-dimensional scan module includes an attachable unit, at least two image sensing units, a depth map generation unit, and an output interface. The attachable unit fixes the attachable three-dimensional scan module on a mobile device. When the mobile device is moved around an object, a first image sensing unit and a second image sensing unit of the at least two image sensing units capture a plurality of first images including the object and a plurality of second images including the object, respectively. A plurality of depth maps generated by the depth map generation unit, the plurality of first images, and the plurality of second images are used for generating a color three-dimensional scan result corresponding to the object. The output interface outputs the color three-dimensional scan result, or the plurality of first images, the plurality of second images, and the plurality of depth maps.

Abstract: A calibration method of a stereo camera includes optionally setting a plurality of camera calibration parameters and a plurality of image rectification parameters of the stereo camera; executing an image capture step on at least one left eye pattern and at least one right eye pattern corresponding to each two-dimensional image of at least one two-dimensional image; generating a plurality of new camera calibration parameters according to a plurality of first images corresponding to all left eye patterns corresponding to the at least one two-dimensional image and a plurality of second images corresponding to all right eye patterns corresponding to the at least one two-dimensional image; and generating a plurality of new image rectification parameters of the stereo camera according to the plurality of new camera calibration parameters.

Abstract: A method and computer system for digital data protection by using a webcam, comprising: generating a user's biometric feature image; comparing the biometric feature image with identification data; concealing specific data in the computer when the biometric feature image does not conform to the identification data.