• Electronics and Telecommunications Trends
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• v.27 no.3
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• pp.12-21
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• 2012

최근 3DTV, 입체 모니터, 입체 노트북 등이 출시되고, 3D 영화, 게임 등 3D 관련 산업이 성장하면서 관련 콘텐츠의 요구사항이 증가하고 있다. 특히, 3D 콘텐츠의 주요 요소 중 하나인 인체는 전통적으로 고가의 3D 스캐너를 이용해 모델링하는 방식을 주로 사용해 왔다. 하지만 근래에는 광학 기술 및 컴퓨팅 성능의 향상으로 구조광과 같은 능동 센서나 카메라로부터 획득한 영상을 기반으로 3D 인체 외형을 복원하는 연구가 각광을 받고 있다. 이런 추세에 발맞춰 본고에서는 인체 중에서도 사용자의 민감도가 높은 얼굴의 3D 복원 기술 및 연구 동향을 살펴보고, 다양한 응용을 목적으로 ETRI에서 개발 중인 3D 얼굴 복원 기술을 소개하고자 한다.

• Journal of the Korean Association of Geographic Information Studies
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• v.3 no.4
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• pp.1-10
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• 2000

Satellite remote sensing images have much more information compared to a paper map. But these images are generally handled as particular image format gained from optical sensor, and must be processed and analyzed by computer with high priced digital image processing system. For the extraction of digital elevation model(DEM) from satellite image, we used the overlay image by SPOT-3 of Chuncheon area at the Kangwon province. According to the image condition, the precious geometric correction, the bundle adjustment for ortho-image generation and the stereo image mapping by several technical approaches were processed. So that we developed the methods of automatic DEM extraction and efficient stereo image map generation which can improve the digital image processing steps. Also, we applied the multiple direction birdeye view image for modeling and analysis using the remotely sensed overlay images with high resolution.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2011.07a
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• pp.331-332
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• 2011

디저털 홀로그래피는 CCD를 이용하여 간섭 패턴을 기록하고 기록된 간섭무늬에 담겨진 물체의 정보로 입체영상을 복원하는 기술을 말하며, 현미경을 이용한 디지털 홀로그래피 기술은 3D 형상 복원이나 바이오포토닉스 등 다양한 분야에서 사용되고 있다. 하지만, 디지털 홀로그래피 기술은 촬영된 간섭패턴에서 픽셀의 위상차가 레이저 파장의 1/2 이상일 경우, 기존의 phase unwrapping 알고리즘으로는 해당 픽셀의 위상차이를 계산할 수 없는 문제가 있다. 이와 같은 문제를 해결하기 위해 본 논문에서는 다수의 홀로그램 영상과 깊이맵을 사용하여 완전한 형태의 깊이맵을 구하는 방법을 제안한다.

• The Magazine of the IEIE
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• v.38 no.12
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• pp.36-41
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• 2011

• Korea Information Processing Society Review
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• v.17 no.4
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• pp.4-11
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• 2010

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.247-248
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• 2016

본 논문에서는 비디오카메라로 촬영한 영상이나 스마트폰 카메라로 촬영한 비디오 영상 혹은 사진들을 영상 편집 기법으로 카툰 형식으로 표현하여 콘텐츠를 제작한다. 카툰 형식의 콘텐츠는 기존 일반 비디오 영상과는 다른 시각화를 나타내고, 카툰 장르의 특성을 가지고 콘텐츠를 표현한다. 카툰은 하나의 칸이나 선을 구성하여 그 영역으로 카툰 고유의 특성을 표현한다. 이러한 카툰은 카툰의 특성을 갖고, 정보나 내용을 일반 영상과 다른 친밀감을 가지고 표현한다. 또한 본 연구에서는 비디오 콘텐츠를 카툰 고유의 특성과 3D 비디오 효과를 적용하여 콘텐츠를 제작하여 활용하도록 한다. 이렇게 콘텐츠를 제작함으로써 2D 콘텐츠 보다 더 입체감과 사실감을 표현하여 콘텐츠에 대한 흥미와 관심으로 콘텐츠의 효과를 극대화 할 수 있다고 사료한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.4
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• pp.37-42
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• 2018

With advancements in digital image production technology, the branch of stereoscopic image technology has also been undergoing active development. Accordingly, research and development on cutting-edge display products for mounting stereoscopic images are currently being pursued. There are various problems that can occur when viewing 3D images. Because viewers feel visual fatigue while perceiving the depth of the images provided via an artificial method, a negative human factor such as visual fatigue has become one of the most prominent concerns, especially as it is a factor that affects the ongoing maintenance of 3D images. Therefore, by identifying the factors affecting the depth of the graphic images provided in 2D images, and subsequently using this information to develop an image processing method, we conducted depth-related experiments and analysed them under the assumption that stereoscopic images could be reproduced without visual fatigue. Thus, we analysed the most significant factors related to depth and verified the interactions by performing depth-related factors-based ANOVA variance analysis by differentially applying the texture, colour temperature, and contrast ratio to graphic images. We determined the significance of the factors related to depth and proposed a method to improve depth based on an analysis of the results of the experiments conducted in this study.

• Journal of Korea Society of Digital Industry and Information Management
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• v.7 no.4
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• pp.111-118
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• 2011

Recent advances in the media have no special change is the development of the 3D stereoscopic image, which started in the movie is coming over now to the broadcast. Confusing variety having, in the production of 3D images that are waiting for the standardized production. 3D images of them being used in broadcast subtitles, first because there is no standardized production systems, making it look is dedicated to the time and effort. This research necessary to create 3D images of these subtitles, titles, text-based objects, such as Rig imaging using a standardized way to synthesize the most stable is proposed. First, with captions or titles, and the readability and understanding of the uniqueness to the human eye to create an environment that is kind of crowd. Because of this, excessive camera Ferrell Rex (gap) created a branch bunch of snow, work should not hurt readability. 100 adult men and women throughout the experiment.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.6
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• pp.655-661
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• 2020

SGM (Semi Global Matching) can be used to find all the conjugate points between stereo images. Therefore, it enables high-density DSM (Digital Surface Model) production from high-resolution satellite images. However, water, shadows, and occlusion areas cause mismatching of the surrounding points in this method. Particularly, in buildings with large-parallax and elongated-shapes such as a Korean style apartment, it is difficult to reconstruct the 3D building even if the SGM method is applied to a high-resolution 50cm satellite image. This study proposed and performed the SGM technique with a classified image and an edge image from the IKONOS-2 satellite stereo-image with a 1m resolution to produce DSM. It was compared with the DSMs from the general SGM and the high-density ABM (Area Based Matching) matching of ERDAS software. The results of the apartment DSM by the proposed method were the best in the test area. As a result, despite the image having a resolution of 1m, the outline of the building DSM could be expressed more clearly than the existing method.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.19 no.3
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• pp.291-300
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• 2001

In this paper, we developed a Satellite Image Processing System for obtaining 3-D positional information which is composed of five process modules. As a procedure of them, the Data Process module is the procedure that reads and processes the header file to generate data files. and then calculates orbital parameters and sensor attitudes for obtaining of 3-D positional information with them. The 3D Process module is to calculate 3-D positional information and the Dialog Process module is to correct the time of image frame center using the single image or stereo images for implementing the 3D Process module. We expect to obtain 3-D positional information with the header file and minimum GCPs(1∼2 points) using this system efficiently and economically in comparison with existing commercial software packages.