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In free viewpoint video systems, a user has the freedom to select a virtual view from which an image of the 3D scene is rendered, and the scene is commonly represented by color and depth images of multiple nearby viewpoints. In such representation, there exists data redundancy across multiple dimensions: 1) a 3D voxel may be represented by pixels in multiple viewpoint images (inter-view redundancy);...
Interactive multiview video streaming (IMVS) is an application where a network client requests from server a single video view at a time but can periodically switch to other views as the video is played back uninterrupted. Existing IMVS algorithms output pre-computed frame structures that facilitate permissible view-switching while minimizing the expected transmission rate given a storage constraint...
JPEG XR is the latest image compression standard. In this paper, two graph-based soft decision quantization (SDQ) methods are developed to optimize the rate-distortion performance of JPEG XR. The first approach uses a full graph, whose number of states is determined by the block size. The second method employs a fast and adaptive event-based graph, where the number of states depends on the number...
In this paper, a perceptual multiview video coding scheme is proposed, based on the synthesized Just Noticeable Distortion (JND) maps. In JND-based perceptual video coding, the residues after intra or inter prediction are tuned according to the corresponding JND thresholds to save the bits without affecting the perceptual quality. In our scheme, to reduce the computational cost of generating the multiview...
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