Showing papers on "Anaglyph 3D published in 2008"

Anaglyph Stereo Visualization by the Use of a Single Image and Depth Information

Abstract: In this paper, an anaglyph stereo visualization is studied by the use of a single image and depth information. The present technique allows the stereo visualization of the target image without binocular camera, which has been used for generating the standard anaglyphs. Three test cases are shown in this work, which covers the generation of monochrome anaglyph from given geometrical information, and that of monochrome and color anaglyph from depth information evaluated from other imaging devises, which are placed in parallel. The experimental depth information of the target image is evaluated from the correlation-based template matching analysis of the random dot patterns optically projected on the target objects. Examples of anaglyph stereo visualization are shown for scientific art, such as the monochrome cube, monochrome plaster figure and the color artificial flowers. These results indicate that the present technique of anaglyph stereo visualization through the depth information is very useful and widely applicable to the general three-dimensional visualization.

Full-color anaglyph three-dimensional display

Abstract: Methods and systems for displaying full-color three-dimensional imagery are provided. A first color set, having a first color spectrum, is defined to include a first set of LEDs. The first color set is assigned to a first color-coded image perspective. A second color set, having a second color spectrum, is defined to include a second set of LEDs. The second color set is assigned to a second color-coded image perspective. The full-color three-dimensional imagery is caused by activating, alternatively, at least two LEDs of the first color set or the second color set and one LED of a remaining color set and displaying the three-dimensional image based on the first image perspective and the second image perspective.

Digital stereoscopic cinema: the 21st century

Abstract: Over 1000 theaters in more than a dozen countries have been outfitted with digital projectors using the Texas Instruments DLP engine equipped to show field-sequential 3-D movies using the polarized method of image selection. Shuttering eyewear and advanced anaglyph products are also being deployed for image selection. Many studios are in production with stereoscopic films, and some have committed to producing their entire output of animated features in 3-D. This is a time of technology change for the motion picture industry.

Application of anaglyph stereo visualization technique using depth information

Abstract: Application of Anaglyph Stereo Visualization Technique Using Depth Information Matsuura, F.* and Fujisawa, N.* *1 Graduate School of Science and Technology, Niigata University, 2-8050 Ikarashi, Nishi-ku, Niigata 950-2181, Japan. E-mail: mat@xfer.in *2 Visualization Research Center, Department of Mechanical Engineering, Niigata University, 2-8050 Ikarashi, Nishi-ku, Niigata 950-2181, Japan. Received 17 October 2007 and Revised 14 November 2007

Advanced Stereo Projection Using Interference Filters

Abstract: Stereo projection using interference filters is an advanced wavelength multiplexing approach that specifically takes into account the nature of the human eye characterized by three types of color receptors. Accordingly, the filters used to code image information for the left and for the right eye image have three narrow bands each. Wavelength multiplexing represents a modern approach by overcoming earlier drawbacks in color reproduction of image separation methods such as anaglyph technologies. In contrast to polarizing technologies, there is neither a need of polarization preservation nor a limitation to the projection technology.

Reconstruction of stereoscopic imagery for visual comfort

Abstract: Generally, an acquired stereoscopic image pair needs to be pre-processed geometrically before 3D viewing, because the parallax and alignment of the pair is not optimal for binocular vision. A stereo image obtained without using a specialized stereo camera system can have several problems that disrupt comfortable 3D viewing, such as insufficient or excessive baseline lengths between the two images. We present a reconstruction technique for the stereo pair images that maximizes visual comfort. First, a disparity map is generated from the stereo image by multiple footprints stereo algorithm, and then a synthetic stereomate is created using the disparity map and a right image of the given stereo pair. At this time, we adjust the disparity map to create a more realistic 3D effect. Most of the frequency disparity is reassigned to zero and the maximum disparity is revised as a parallax comfortable for human eyes. The occlusion of the synthetic stereomate is corrected by an inpainting method. Through the experiments, we could obtain a registered stereoscopic image with an optimized parallax. To evaluate the proposed technique, our results were compared with the original stereo pairs by viewing the 3D stereo anaglyphs.

Simple efficient techniques for creating effective 3D impressions from 2D original images

Abstract: In this paper simple techniques based on nonlinear geometric transformations are presented for creating an effective 3D impression (stereovision or illusion of depth) from a single 2D original. Our aim is to propose semi-automatic ways to transform 2D images into their suggestive but plausible 3D anaglyph versions. Three conversion methods based on a binary depth map are proposed and the influence of various RGB component shifts on the 3D impression quality is studied.

Wide color gamut anaglyphs

Abstract: Four primary colors may be used to render anaglyphs with wide color gamuts. The first image of a stereoscopic pair may be rendered in three primary colors while the second image of a stereoscopic pair may be rendered in a fourth primary color. Retinal rivalry may be avoided in an anaglyph by balancing the brightness contrasts of the first and second images for like subject matter. The retinal rivalry may be measured and controlled in anaglyphs by selecting values of a retinal rivalry color coordinate.

Ghosting reduction method for color anaglyphs

Abstract: Anaglyph is the simplest and the most economical method for 3D visualization. However, anaglyph has several drawbacks such as loss of color or visual discomfort, e.g., region merging and the ghosting effect. In particular, the ghosting effect, which is caused by green penetrating to the left eye, brings on a slight headache, dizziness and vertigo. Therefore, ghosting effects have to be reduced to improve the visual quality and make viewing of the anaglyph comfortable. Since red lightness is increased by penetration by green, the lightness of the red band has to be compensated for. In this paper, a simple deghosting method is proposed using the red lightness difference of the left and right images. We detected a ghosting area with the criterion, which was calculated from the statistics of the difference image, and then the red lightness of the anaglyph was changed to be brighter or darker according to the degree of the difference. The amount of change of red lightness was determined empirically. These adjustments simultaneously reduced the ghosting effect and preserved the color lightness within the non-ghosting area. The proposed deghosting method works well, and the goal of this paper was to detect the ghosting area automatically and to reduce the ghosting.

Ghosting Reduction and Estimation in Anaglyph Stereoscopic Images

Abstract: In this paper are presented the developed algorithms and program system implementation for stereoscopic anaglyph deghosting based on parallax and color adjustment. The stereoscopic technique based on color separation of the images, intended for the left and the right eye respectively, by means of Red and Cyan color filters (anaglyph glasses) is used. Methods and algorithms for estimation and reduction of ghosting effect associated with anaglyph stereo images as well as an approach to measure and analyze this effect are suggested. The program results of the developed ghosting reduction algorithm with intensity transformation of Red and Green channels are compared to the PS basic processing method of anaglyphs. The achieved results can be used for stereoscopic imaging suitable for the printed media, Internet 3D application, art presentation and visualization on all currently widespread screens.

Stereoscopic vision image taking apparatus and image processing system using the same

Abstract: PROBLEM TO BE SOLVED: To provide a stereoscopic vision image taking apparatus capable of producing a stereoscopic vision image while suppressing the occurrence of image distortion and also obtaining a stereoscopic vision image of a moving object, and to provide an image processing system. SOLUTION: The stereoscopic vision image taking apparatus includes: an imaging stereo adapter 20 with a camera 40 attached thereto, and an imaging position regulating member 10. The stereo adapter 20 has: a pair of mirrors disposed on the respective optical paths of the left and right imaging areas of the camera 40, thereby separating them symmetrically; and a pair of mirrors by which the separate left and right eye optical paths are converted to an optical path for catching the virtual frame into an imaging area from the left and right virtual views. Images in the virtual frame 2 viewed from the left and right virtual views are anaglyph processed into the left and right imaging areas of the camera 40, and thus imaged as an image for the left eye and an image for the right eye that are used to produce a stereoscopic vision image. COPYRIGHT: (C)2008,JPO&INPIT

Ghosting Reduction andEstimation inAnaglyph Stereoscopic Images

Abstract: Inthis paperarepresented thedeveloped ofthemediumandthefilters. W.Sanders andD.McAllister algorithms andprogram system implementation forstereoscopic (1)havepublished someworkssummarizing thealgorithms anaglyph deghosting based onparallax andcolor adjustment. The usedforcreation ofanaglyphs withreduced ghosting effect. stereoscopic technique basedoncolor separation oftheimages, intendedfor theleft andtheright eyerespectively, bymeansofRed andCyancolor filters (anaglyph glasses) isused. Methods and oumingoais tosgges andimplement thm for algorithms forestimation andreduction ofghosting effectglhoting reduction inanaglyphs andtocompare themtothe associated with anaglyph stereo images aswell asanapproach to already existing ones. Mostmethods foranaglyph ghosting measure andanalyze this effect aresuggested. Theprogram results reduction arebasedonB-matrix modification inproduction ofthedeveloped ghosting reduction algorithm withintensity stage, forexample thealgorithm ofDubois(2). Ourworkis transformation ofRedandGreen channels arecompared tothePS mostly concentrated onthepostproduction ghosting reduction basic processing method ofanaglyphs. Theachieved results canbe onalready created anaglyphs rather thanonstereo pair usedforstereoscopic imaging suitable fortheprinted media,processing. Notmuchofficial research hasbeenperformed in Internet 3Dapplication, artpresentation andvisualization onall this area(6). currently widespread screens.

Technical Analysis of Analogies of Stereo Displaying Techniques with 3D Generated Scenes in Visualitization

Abstract: Scientific visualization often requires display and perception of depth and 3D in various applications. A CGI application has been designed to allow interactive construction of stereo images from POV-Ray SDL models that has enabled comparison between two different methods of encoding stereo images. Red-cyan anaglyphs and interleave images for LCD shatter glasses have been considered in this paper. Two methods of encoding and viewing stereo images on computer monitors have been studied. Either method is not perfect: the logic cannot be cheated. Half of information in L and R pictures is lost. In interleaved image, every other line has been omitted from the resulting picture, halving the effective image resolution. Half of dots in image are going to be rendered in vain each time. In a common anaglyph, blue and green colour channels are lost from the left picture and red channel from the right.