Intermediate Depth Image Generation using Disparity Increment of Stereo Depth Images

Koo, Ja-Myung; Seo, Young-Ho; Choi, Hyun-Jun; Yoo, Ji-Sang; Kim, Dong-Wook

doi:10.5909/jeb.2012.17.2.363

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…3. 중간시점 영상 렌더링 좌우 카메라로 획득한 영상으로부터 중간시점 영상을 생 성하는 방법에 있어서 본 논문에서는 획득된 두 깊이영상 에서 빈도수가 많은 대표적인 큰 깊이값과 작은 깊이값을 선정하고, 이들을 대상으로 스테레오 정합을 수행하여 단 위 깊이값 당 변위의 크기를 추출하여 사용하는 방법[11] 과 3D 워핑(warping)을 사용한 방법[12] 을 모두 고려하였으며, 그 뒤의 홀-필링(filling) 방법은 동일하게 적용하였다.…”

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A Prototype Architecture of an Interactive Service System for Digital Hologram Videos

Seo¹,

Lee²,

Yoo³

et al. 2012

Journal of Broadcast Engineering

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The purpose of this paper is to propose a service system for a digital hologram video, which has not been published yet. This system assumes the existing service frame for 2-dimensional or 3-dimensional image/video, which includes data acquisition, processing, transmission, reception, and reconstruction. This system also includes the function to service the digital hologram at the viewer's view point by tracking the viewer's face. For this function, the image information at the virtual view point corresponding to the viewer's view point is generated to get the corresponding hologram. Here in this paper, only a prototype that includes major functions of it is implemented, which includes camera system for data acquisition, camera calibration and image rectification, depth/intensity image enhancement, intermediate view generation, digital hologram generation, and holographic image reconstruction by both simulation and optical apparatus. The proposed prototype system was implemented and the result showed that it takes about 352ms to generate one frame of digital hologram and reconstruct the image by simulation, or 183ms to reconstruct image by optical apparatus instead of simulation.

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A Prototype Architecture of an Interactive Service System for Digital Hologram Videos

Seo¹,

Lee²,

Yoo³

et al. 2012

Journal of Broadcast Engineering

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Presentation Method Using Depth Information

Kim¹,

Kwon²

2013

Journal of Broadcast Engineering

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Recently, various equipments have been developed for convenience of presentations. Presentation equipments added the keyboard and mouse functions to laser pointer and devices have become main method. However these devices have demerits of limited action and a few events. In this paper, we propose a method which increases the degrees of freedom of presentation as the control of the hand by using a depth camera. The proposed method recognizes the horizontal and vertical positions of hand pointer and the distance between hand and camera from both depth and RGB cameras, then performs a presentation event as the location and pattern that the hand touches a screen. The simulation results show that a camera is fixed on left side of the screen, and nine presentation events is correctly performed.

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Data Encryption Technique for Depth-map Contents Security in DWT domain

Choi¹

2013

The Journal of the Korean Institute of Information and Communic

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As the usage of digital image contents increase, a security problem for the payed image data or the ones requiring confidentiality is raised. This paper propose a depth-map image contents encryption methodology to hide the depth information. This method is performed on the frequency coefficients in the Wavelet domain. This method, by selecting the level and threshold value for the wavelet transform, encryption at various strengths are possible. The experimental results showed that encrypting only 0.048% of the entire data was enough to hide the constants of the depth-map. The encryption algorithm expected to be used effectively on the researches on encryption and others for image processing.키워드 깊이정보, 영상 암호화, 이산 웨이블릿 변환, 3차원

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Intermediate Depth Image Generation using Disparity Increment of Stereo Depth Images

Cited by 6 publications

References 9 publications

A Prototype Architecture of an Interactive Service System for Digital Hologram Videos

A Prototype Architecture of an Interactive Service System for Digital Hologram Videos

Presentation Method Using Depth Information

Data Encryption Technique for Depth-map Contents Security in DWT domain

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