• Title/Summary/Keyword: Stereoscopic 3-D

Search Result 526, Processing Time 0.027 seconds

Implementation of Stereoscopic 3D Video Player System Having Less Visual Fatigue and Its Computational Complexity Analysis for Real-Time Processing (시청피로 저감형 S3D 영상 재생 시스템 구현 및 실시간 처리를 위한 알고리즘 연산량 분석)

  • Lee, Jaesung
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.17 no.12
    • /
    • pp.2865-2874
    • /
    • 2013
  • Recently, most of movies top-ranked in the box office are screening in Stereoscopic 3D, and the world's leading electronics companies such as Samsung and LG are getting the hots for 3DTV sales. However, each person has different binocular disparity and different viewing distance, and thus he or she feels the severe visual fatigue and headaches if he or she is watching 3D content with the same binocular disparity, which is very different from things he or she feels in the real world. To solve this problem, this paper proposes and implement a 3D rendering system that correct the disparity of 3D content by reflecting binocular distance and viewing distance. Then, the computational complexity is analyzed. Optical-flow and Warping algorithms turn out to consume 732 seconds and 5.7 seconds per frame, respectively. Therefore, a dedicated chip-set for both blocks is strongly required for real-time HD 3D display.

Development of HD Resolution Stereoscopic Camera and Apparatus for Recognizing Depth of Object (HD 해상도 스테레오 영상 카메라 구현과 거리 인식 응용)

  • Han, Byung-Wan;Lim, Sung-Jun
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.14 no.1
    • /
    • pp.351-357
    • /
    • 2013
  • Two cameras which function like human eyes, are needed to make 3D stereoscopic image. That is, stereoscopic image is made via 3 dimensional image processing for combining two images from left and right camera. In this paper two high resolution zoom cameras are used to make HD resolution stereoscopic camera. And the algorithm which convert to stereoscopic image from HD resolution zoom camera image, is implemented using FPGA for real-time operation. The algorithm which measure the depth of object between left and right image is proposed.

A Study on the Physical Properties of Concrete with Three-dimensional Fiber Application (입체 섬유 적용 콘크리트의 물리적 특성에 관한 연구)

  • Jae-Min Lee;Il-Young Jang
    • Journal of the Korean Society of Industry Convergence
    • /
    • v.27 no.3
    • /
    • pp.519-525
    • /
    • 2024
  • In this paper, a study on the physical properties of mortar applying 3D Textile was conducted to compensate for the shortcomings of the existing concrete surface repair and reinforcement method. In the tests conducted to analyze the physical properties, compressive strength, flexural strength, and dynamic modulus measurement tests were conducted. As a result of the compressive strength test, as the number of surfaces to which the stereoscopic fiber was applied increased, the amount of displacement and strength reduction rate increased, and the flexural strength also increased as the number of surfaces to which the stereoscopic fiber was applied increased. In addition, it was confirmed that the use of stereoscopic fibers tended to decrease the dynamic modulus of elasticity. This result is a characteristic of the application of stereoscopic fibers, and it caused a decrease in compressive strength due to a decrease in the mortar content of the part to which the stereoscopic fib er was applied, and the high tensile force of the stereoscopic fiber is believed to have affected the increase in flexural strength.

Time-series changes in visual fatigue and depth sensation while viewing stereoscopic images

  • Kim, Sang-Hyun;Kishi, Shinsuke;Kawai, Takashi;Hatada, Toyohiko
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2009.10a
    • /
    • pp.1099-1102
    • /
    • 2009
  • Conventional stereoscopic (3D) displays using binocular parallax generate unnatural conflicts between convergence and accommodation. Those conflicts can affect the ability to fuse binocular images and may cause visual fatigue. This study examined time-series changes in visual fatigue and depth sensation while viewing stereoscopic images with changing parallax. We examined the physiological changes, including the subjective symptoms of visual fatigue, when viewing five parallax conditions. The time-series results suggest that 2D and 3D images produce significantly different types of visual fatigue over the range of binocular disparity.

  • PDF

Transformation of Stereoscopic Images for 3D Perception Improvement (입체영상의 3D 증강을 위한 입체영상 변환)

  • Gil, Jong In;Choi, Hwang Kyu;Kim, Manbae
    • Journal of Broadcast Engineering
    • /
    • v.17 no.6
    • /
    • pp.911-923
    • /
    • 2012
  • Recently, 3DTV and 3D displays have been released in the market. Accordingly, the production of stereoscopic images has gained much interest. Stereoscopic image being composed of left and right images are currently delivered to viewers without any modifications. The researches on the enhancement of depth perception using high-frequency components and the re-production of natural color by color compensation have been carried out for 2D images. The application of such 2D technologies to 3D stereoscopic images is an aim of this paper. This paper proposes the enhancement of 3D perception by color transformation. For this, we propose a stereo matching method for obtaining a depth map and two color transformation methods such as contrast transformation and background darkening. The effectiveness of the proposed method was verified through experiments.

Three-Dimensional Characterization of Strong Recirculating Flow by Stereoscopic PIV

  • Ikeda, Yuji;Palero, Virginia;Sato, Kei;Nakajima, Tsuyoshi
    • Journal of the Korean Society of Combustion
    • /
    • v.7 no.1
    • /
    • pp.37-43
    • /
    • 2002
  • Spray characteristics in the swirling flow were investigated by Stereoscopic PIV. Spatial spray structures were measured by PIV as well as PDA in order to understand stable flame stabilization. The feasibility study of Stereoscopic PIV in spray flame was also demonstrated. The size and location of recirculation flow were measured. The stereoscopic PIV could provide 3-D flow fluctuation that cannot be measured by convectional measurement systems.

  • PDF

MPEG-DASH Services for 3D Contents Based on DMB AF (DMB AF 기반 3D 콘텐츠의 MPEG-DASH 서비스)

  • Kim, Yong Han;Park, Minkyu
    • Journal of Broadcast Engineering
    • /
    • v.18 no.1
    • /
    • pp.115-121
    • /
    • 2013
  • Recently an extension to DMB AF (Digital Multimedia Broadcasting Application Format) standard has been proposed in such a way that the extended DMB AF can include stereoscopic video and stereoscopic images for interactive service data, i.e., MPEG-4 BIFS (Binary Format for Scene) data, in addition to the existing 2D video and 2D images for BIFS services. In this paper we developed a service that provides the streaming of 3D contents in DMB AF by using MPEG-DASH (Dynamic Adaptive Streaming over HTTP) standard and validated it by implementing the client software.

Video Processing of MPEG Compressed Data For 3D Stereoscopic Conversion (3차원 입체 변환을 위한 MPGE 압축 데이터에서의 영상 처리 기법)

  • 김만배
    • Proceedings of the Korean Society of Broadcast Engineers Conference
    • /
    • 1998.06a
    • /
    • pp.3-8
    • /
    • 1998
  • The conversion of monoscopic video to 3D stereoscopic video has been studied by some pioneering researchers. In spite of the commercial of potential of the technology, two problems have bothered the progress of this research area: vertical motion parallax and high computational complexity. The former causes the low 3D perception, while the hardware complexity is required by the latter. The previous research has dealt with NTSC video, thur requiring complex processing steps, one of which is motion estimation. This paper proposes 3D stereoscopic conversion method of MPGE encoded data. Our proposed method has the advantage that motion estimation can be avoided by processing MPEG compressed data for the extraction of motion data as well as that camera and object motion in random in random directions can be handled.

  • PDF

Stereoscopic Video Services for Terrestrial DMB (지상파 DMB를 위한 스테레오스코픽 영상 서비스)

  • Kim, Yong-Han
    • Journal of Broadcast Engineering
    • /
    • v.14 no.1
    • /
    • pp.85-88
    • /
    • 2009
  • Recently "DMB Video-Associated Stereoscopic Data Services" standard has been published by TTA. The standard enables DMB broadcasters to provide 3D or stereoscopic interactive data services based on MPEG-4 BIFS (Binary Format for Scenes). The purpose is to entice viewers to utilize DMB interactive data services more often by providing realistic and protrusive image objects overlaid on top of the main video in the background. This paper provides the background, technical analysis, and in-depth considerations for the standard. Also the results of standard verification are provided including the results of interoperability test with the existing terrestrial DMB receivers.

Depth Scaling Method of DirectX-based Stereoscopic Game Image (DirectX 기반 입체 게임 영상의 깊이감 조절 기법)

  • Kim, Jin-Mo;Cho, Hyung-Je
    • Journal of Korea Game Society
    • /
    • v.10 no.1
    • /
    • pp.135-146
    • /
    • 2010
  • The development of image technologies in such area as broadcasting and movies has recently increased our attention to 3D stereoscopic images. In addition, the development of stereoscopic image representation technologies in 3D contents becomes more active over time due to the representational limitations of 2D images. Without limitation to the above-mentioned area, stereoscopic image technologies have been developed and studied so that they can be widely accessed in diverse areas including medical services and education. Due to the refined production, however, required to represent a three dimensional effects and the fatigue caused by the perception of a three dimensional effects, the stereoscopic image technologies are not combined into real time systems such as games where environments change unforeseeably. In this study we design a technique to adjust the depth scaling that will enable efficient management of a three dimensional effects and to relieve fatigue through automatic view point interval adjustment in accordance with situations based on the geometrical structure of the DirectX SDK graphic pipeline. Through this, we would like to suggest a new alternative idea to activate the production of games combined with stereoscopic image technologies.