Kt Corporation

Korea Electronics Technology Institute

Gwangju Institute of Science and Technology

Cheon Lee

Byeong Ho Choi

Je Woo Kim

Dong Sun Kim

Yo Sung Ho

Kwan Jung Oh

Hyok Song

Yo-Sung Ho

A calibration system for stereo cameras includes a rig control module configured to, when a camera calibration parameter is input, control an auto rig according to the camera calibration parameter to perform physical calibration for a camera, a stereo image calibration apparatus configured to calibrate a stereo image to acquire the camera calibration parameter, and output the acquired camera calibration parameter, and a camera control module configured to output the camera calibration parameter, which is input from the stereo image calibration apparatus, to the rig control module, or screen-output the camera calibration parameter. Therefore, physical calibration and image processing calibration for a camera are performed in association with each other.

Calibration system for stereo camera and calibration apparatus for calibrating stereo image

Method for filling a hole-region and a three-dimensional (3D) video system using the same. In order to synthesize an image, a plurality of images each having a different viewpoint may be obtained. By using depth maps of the obtained plurality of images, an intermediate virtual viewpoint image may be synthesized. After synthesizing, a hole-region in the intermediate virtual viewpoint image may be filled using a color image of the intermediate virtual viewpoint image, a mask image indicating the hole-region in the intermediate virtual viewpoint image, and a depth image of the intermediate virtual viewpoint image.

Method for filling hole-region and three-dimensional video system using the same

The invention relates to a method of computing a disparity, a method of synthesizing an interpolation view, a method of encoding and decoding multi-view video using the same, and an encoder and a decoder using the same. In particular, the invention relates to a method of computing a disparity, a method of synthesizing an interpolation view, a method of encoding and decoding multi-view video using the same, and an encoder and a decoder using the same, which can rapidly compute an initial disparity of a block using region segmentation, accurately compute a disparity of the block using a variable block, and synthesize an interpolation view on the basis of a disparity value computed in a pixel basis using an adaptive search range, thereby improving quality of the interpolation view, and also can encode and decode a multi-view video independently from an existing prediction mode while using the interpolation view as a reference picture, thereby improving coding efficiency.

Method of computing disparity, method of synthesizing interpolation view, method of encoding and decoding multi-view video using the same, and encoder and decoder using the same

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Gwangju, South Korea

Cheon Lee