| Now3D display technology has been gradually become the mainstreamof the display technology, with the development and mature of stereobroadcast technology, the augmented reality based on the stereo videobroadcast also need innovation urgently. Augmented reality is also calledmixed reality, it produce virtual object by the aid of computer graphicstechnology and visualization technology, and place the virtual object in thereal environment through the sensing technology, and make it mix togetherwith the real environment with the aid of display device, make user couldinteract with virtual object and real environment by a more natural way. Thevirtual information of augmented reality include virtual object, scene andOSD (On Screen Display) message. This article mainly aims at the need ofaugmented reality application under the condition of3D video, puts forwardsome new ways of research about the occlusion and comfort in stereo vision.For the image information, virtual object and scene adding to the realimage, compared with two-dimensional video,3D video is based on stereovision system, and provide stereo image for human, the parallax of the sameobject in stereo image will produce certain depth in the human brain, so weneed to determine the correct occlusion relationship between the virtual andreal object. In this paper, we do research on the occlusion consistency ofstereo video, and propose a depth layered framework based onthree-dimensional scene, we could get disparity map which has accurate scenedepth stratification, and then combining with the relationship of disparity anddepth, we can solve the occlusion consistency between virtural object and realscene in stereo image.For the other content of augmented reality, the production of OSDinformation, taking into account the OSD information will always keep out stereoscopic image information, we propose a new adding method based onthe comfortable stereo vision. We put the OSD information to the depth planewith the main, attractive, and large amount of information of image, it couldalleviate discomfort caused by focus convergence disorder when watchingstereo scene and caption. In addition, we do research on the changing methodof the depth of OSD information in scene change, and through the subjectiveevaluation we come to the conclusion that when the depth of OSDinformation change with the scene depth immediately, it would getcomfortable effect. |
