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Dive into the research topics where Yung-Ho Seo is active.

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Featured researches published by Yung-Ho Seo.


Optical Engineering | 2008

Optimal keyframe selection algorithm for three-dimensional reconstruction in uncalibrated multiple images

Yung-Ho Seo; Sang-Hoon Kim; Kyoung-Soo Doo; Jong-Soo Choi

A keyframe selection algorithm is the process of selecting the essential image for 3-D reconstruction from among many uncalibrated images. Camera autocalibration between images is also essential for 3-D reconstruction. This paper proposes a keyframe selection algorithm that selects the best image to reduce reprojection error. The camera projection matrix in the selected keyframe arises from a full camera autocalibration process. From the camera projection matrix, which is assumed exact, the algorithm calculates the fundamental matrix using algebraic derivation. By this process, false matching is eliminated and finally a 3-D data set is obtained. In our experimental results, the proposed algorithm needs less time than other algorithms; it also has fewer errors in the reconstructed 3-D data. The fundamental matrix that is gained from algebraic derivation takes less time than other algorithms, and it has same average error as the others.


Optical Engineering | 2008

Full three-dimensional reconstruction using key-frame selection under circular motion

Sang-Hoon Kim; Yung-Ho Seo; Yong-In Yun; Jong-Soo Choi

Fundamental-matrix and key-frame selection constitute one of the most important techniques for full 3-D reconstruction of objects from turntable sequences. This paper proposes the new methods for these selection problems in 3-D reconstruction from uncalibrated sequences taken with a turntable and the Fotonovo camera system. Also, we propose a projection-matrix refinement for accurate full 3-D reconstruction. Our approach utilizes single-axis motion. To evaluate the fundamental matrix, camera calibration and 3-D registration are generally needed. Our main contribution is a method for robustly determining the corresponding points between two images, and for accurately filling gaps in a sparse object so as to make surface reconstruction tractable. We do not need all frames, but only few pairs of images (key frames). The key-frame selection has the advantage in camera pose estimation and 3-D scene reconstruction of reducing the computational costs. Experimental results on real image sequences demonstrate accurate object reconstructions and robustness of the proposed methods.


Journal of the Institute of Electronics Engineers of Korea | 2010

Motion Capture using both Human Structural Characteristic and Inverse Kinematics

Yung-Ho Seo; Kyoung-Soo Doo; Jong-Soo Choi; Chil-Woo Lee


Journal of the Institute of Electronics Engineers of Korea | 2009

Fundamental Matrix Estimation and Key Frame Selection for Full 3D Reconstruction Under Circular Motion

Sang-Hoon Kim; Yung-Ho Seo; Tae-Eun Kim; Jong-Soo Choi


Journal of the Institute of Electronics Engineers of Korea | 2007

Registration System of 3D Footwear data by Foot Movements

Da-Un Jung; Yung-Ho Seo; Jong-Soo Choi


대한전자공학회 기타 간행물 | 2010

Geometric Revise using Distance Transform for Pose Estimation

Yung-Ho Seo; Chi-Min Oh; Dae-Hyeon; Song; Ki-Tae Bae; Chil-Woo Lee


Journal of the Institute of Electronics Engineers of Korea | 2010

Efficient Object Selection Algorithm by Detection of Human Activity

Wang-Bae Park; Yung-Ho Seo; Kyoung-Soo Doo; Jong-Soo Choi


Journal of the Institute of Electronics Engineers of Korea | 2008

3D Reconstruction using the Key-frame Selection from Reprojection Error

Yung-Ho Seo; Sang-Hoon Kim; Jong-Soo Choi


Journal of the Institute of Electronics Engineers of Korea | 2008

Real-time Implementation and Application of Pointing Region Estimation System using 3D Geometric Information in Real World

Yunsang Han; Yung-Ho Seo; Kyoung-Soo Doo; Jin-Tae Kim; Jong-Soo Choi


Journal of the Institute of Electronics Engineers of Korea | 2008

3D Model Retrieval Using Sliced Shape Image

Yu-Sin Park; Yung-Ho Seo; Yong-In Yun; Jun-Sik Kwon; Jong-Soo Choi

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Chil-Woo Lee

Chonnam National University

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Chi-Min Oh

Chonnam National University

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Jin-Tae Kim

Korea Research Institute of Standards and Science

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