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Displaying 1-15 of 15 articles from this issue
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Article type: Cover
Pages Cover1-
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (11K) -
Article type: Index
Pages Toc1-
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (42K) -
Hiroyasu UJIKE, Hiroshi WATANABEArticle type: Article
Session ID: 3DIT2015-1/HI2015-35
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWhen stationary observers watch 2D moving images simulating rotations around each of three axes, roll, pitch, yaw, the subjective scores of uncomfortability relating with visually induced motion sickness increases at around a certain rotation velocities. However, we are not sure whether the same kind of effects of rotation velocity with stereoscopic moving images can be obtained, because we have found that there are some effects of stereoscopic viewing on a characteristics of visually induced motion sickness induced by 2D images. Therefore, in the present experiment, we examine the effects of rotation velocity of moving images simulating observers' rotation around each of the three axes. As a result, we found the same kind of characteristics between stereoscopic and 2D images.View full abstractDownload PDF (3269K) -
Noriji OISHIArticle type: Article
Session ID: 3DIT2015-2/HI2015-36
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThe animation displayed by the conventional apparatus comprising a lenticular lens and the printed image has been possible to have 3D effect by using parallax, but was limited to simply repeating frames which number was determined by the limitations of the printing resolution. In this study, an optical system to display a 3D animation with no limit on the number of frames was designed, and demonstrated to experiment.View full abstractDownload PDF (6401K) -
Sho HIRAYAMA, Yasuhiro TAKAKIArticle type: Article
Session ID: 3DIT2015-3/HI2015-37
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have already realized a table-screen 3D display system using a small array of high-speed projectors, which can produce 360-degree three-dimensional images employing converging rays, parallel rays, and diverging rays. In this study, we evaluated the influence of ray divergence on three-dimensional images. We found that the best image quality was obtained with converging rays, the second best quality was obtained with parallel rays, and the worst one was obtained with diverging rays. Regarding the image distortion depending on the observation positions, diverging rays, parallel rays, and converging rays were ranked, respectively.View full abstractDownload PDF (12406K) -
Yutaro KOYA, Yue BAO, Yuan QUArticle type: Article
Session ID: 3DIT2015-4/HI2015-38
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSIn recent years, the auto-stereoscopic display using a lens array is studied. However, since stereo images other than the depth of a virtual image deteriorate, this stereo display cannot give us a 3D image with deep depth. Therefore, we propose the method of dividing the image according to depth using a penetration type display. The proposal method reduced deterioration of an image by generating two or more virtual image planes and can display a deeper stereo image. From the experiment result by prototype system, we confirmed that the proposal method can display a deeper stereo image.View full abstractDownload PDF (7678K) -
Misato OKAMOTO, Ikuko SHIMIZUArticle type: Article
Session ID: 3DIT2015-5/HI2015-39
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDepth image based rendering(DIBR) is a method for generating images from arbitrary view with 2-D color image and its corresponding depth map. After image warping, there are some pixels without color information because of occulusion. Our method inpaints these pixels based on the segmention of image considering space-time consistency. We interpolate the pixels without color information by extending the segmented regions considering depth and continuity of the boundary. Experimental results show that the proposed method obtains better subjective qualities for the virtual views.View full abstractDownload PDF (8525K) -
Kinya FUJITAArticle type: Article
Session ID: 3DIT2015-6/HI2015-40
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSUncontrolled interruptions caused by communication tools, such as email and short message, have a serious risk of intellectual productivity degrade. In this study, an uninterruptibility estimation method based on PC activity during office work, remote sharing of estimated uninterruptibility, and automatic mediation of remote communication including e-mail are described.View full abstractDownload PDF (7944K) -
Hiroshi WATANABE, Tomohito OKUMRUA, Eiji WAKAMIYAArticle type: Article
Session ID: 3DIT2015-7/HI2015-41
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe developed a virtual maze game using immersive type virtual reality system and measured searching time and walking path. This system controled size of virtual environment, existence of landmark, and initial view point, thus could quantified subjects' navigation behavior under various spatial factors. This paper reported normal university students' data in the preliminary experiment..View full abstractDownload PDF (4118K) -
Ryo HARASHIMA, Yue BAOArticle type: Article
Session ID: 3DIT2015-8/HI2015-42
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThis paper propose a system to provide 3D display with unlimited parallax and display virtual TV as if real TV is put by HMD. By this system, the user is able to watch TV naturally by preventing which the moving of the virtual TV follows in the moving of head. In addition, motion parallax depending on movement is expressed without visual area restriction. As an experimental result, virtual TV position was fixed to the real space like the real TV and expression of the natural motion parallax was enabled by proposal system.View full abstractDownload PDF (11255K) -
Yutaka ENDO, Koki WAKUNAMI, Tomoyoshi SHIMOBABA, Takashi KAKUE, Yasuyu ...Article type: Article
Session ID: 3DIT2015-9/HI2015-43
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThis study proposes the method used to calculate a computer-generated hologram (CGH) for real scenes under natural light using a commercial light field camera, Lytro. In this method, a CGH is calculated by converting a light field captured with Lytro into a wavefront. We tested optical reconstruction of the CGH and confirm the validity of our method.View full abstractDownload PDF (11189K) -
Ryo HIGASHIDA, Masahiro YAMAGUCHIArticle type: Article
Session ID: 3DIT2015-10/HI2015-4
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe propose a touchable 3D image user interface by capturing a scattered light generated when a user touches a real image reconstructed by a full-parallax 3D display using a holographic screen and a projector. It's unnecessary to an alignment between a position of a 3D image and a sensor to detect a hand or a finger motion because the proposed method directly detects the operation to the 3D image. In the experiment, the proposed system detected the operation to different 3D image by using a color information of the scattered light.View full abstractDownload PDF (8691K) -
Article type: Appendix
Pages App1-
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (81K) -
Article type: Appendix
Pages App2-
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (81K) -
Article type: Appendix
Pages App3-
Published: March 02, 2015
Released on J-STAGE: September 22, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (81K)
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