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Research On The Generation Of Stereoscopic Image

Posted on:2014-02-10Degree:MasterType:Thesis
Country:ChinaCandidate:Y J GengFull Text:PDF
GTID:2248330398960513Subject:Computer software and theory
Abstract/Summary:PDF Full Text Request
With the rapid development of capture and display device for stereoscopic,3D technology has been more and more ripening. A stereoscopic image consists of two views (images), one for each eye. By projecting each view to the corresponding eye, a stereoscopic image enhances depth perception with stereopsis and provides a lifelike viewing experience. Emerging3D technology are expected to further blur the lines between the physical and virtual worlds, and the experience associated with3D media will transform the way people live, work, and play. So there has been a tremendous resurgence in the interest of stereoscopic3D.Grey stereoscopic image as a kind of art are loved by many people. In the process of generation, color-to-gray is an important step. Color-to-gray conversion is a progress from three dimensions to one dimension. It is a big problem to prevent feature losing in dimension reduction. Besides it is also important to ensure stereo brightness consistency between the two views of a stereoscopic image to avoid retinal rivalry.There are many methods to view a stereoscopic image, such as side-by-side viewing, anaglyphs, shutter glasses, polarized light, infitec glasses, and so on. Among these, anaglyph provides an inexpensive and portable way to view stereoscopic content with a reasonable viewing experience. However, it suffers from a disturbing effect called ghosting. Ghosting effect results from crosstalk, which refers to a color channel of the image that should be filtered out for an eye passes the filter partially. Besides ghosting, the need for specialized equipment is another problem when distributing anaglyph stereo images:the stereo impression is enjoyed with special anaglyph glasses, but the colors are ruined for spectators with no such glasses.In this paper, we analysis the existing problem of grey stereoscopic and anaglyph production and find the solutions for each problem respectively. We presented an approach to color-to-gray conversion for stereoscopic images. We estimate this pair of optimal mapping functions by solving an energy minimization problem. In this energy minimization problem, we define a detail-preserving term that best maintains the visual difference between neighboring pixels. We also define an energy term to encourage the matching feature points to have the same intensity to avoid retinal rivalry. To reduce ghosting in anaglyph, we present a novel approach that does not rely on power spectra of a monitor or on transmission spectra of anaglyph glasses. First, we measure the ghosting effect by the red lightness difference between a stereo pair and visual saliency estimate. Then, we formulate ghosting reduction as an energy minimization problem, which can be efficiently solved using a standard linear solver. Experimental results show that our method not only successfully reduces ghosting in anaglyph but also produces images that appear almost ordinary to the naked eye which improves the backward-compatibility of anaglyph.
Keywords/Search Tags:Stereoscopic photo, Grey stereoscopic image, Color-to-grayconversion, Anaglyph production, Ghosting
PDF Full Text Request
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