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Multiview distributed video coding (DVC) has gained much attention in the last few years because of its potential in avoiding communication between cameras without decreasing the coding performance. However, the current results are not matching the expectations mainly due to the fact that some theoretical assumptions are not satisfied in the current implementations. For example, in distributed source...
This paper questions the existence of factors influencing the quality of the synthesized views, in the context of multi-view video plus depth coding (MVC). The issue of bit-rate allocation between texture and depth data in MVC is still open, despite the many efforts already raised for the development of optimization techniques. The originality of this study lies in the investigation of direct relationships...
In this paper we analyze the current developments in 3DTV technologies concerning multi-view video coding and free-viewpoint rendering. Multi-View Coding (MVC) can be performed in several ways that influence the performance and the complexity of the system. We underline the connection between coding and free-viewpoint rendering techniques. Since the latest research shows that a better multi-view coding...
Multiview video representation based on depth data, such as multiview video-plus-depth (MVD), is emerging 3D video communication services raising in the meantime the problem of coding and transmitting depth video in addition to classical texture video. Depth video is considered as a key side information in novel view synthesis within multiview video systems, such as three-dimensional television (3...
Multi-view video coding exploits inter-view redundancies to compress the video streams and their associated depth information. These techniques utilize disparity estimation techniques to obtain disparity vectors (DVs) across different views. However, these methods contribute to the majority of the computational power needed for multi-view video encoding. This paper proposes a solution for fast disparity...
One major obstacle for the application of multiview sequences, including 3DTV, is the extremely large amount of data associated with a multiview sequence. To enable the storage or transmission of a multiview sequence at a reasonable cost, in this paper, we present a disparity estimation method based on affine model to overcome this problem. By modeling the disparity function on each patch of the multiview...
3D video capturing acquires the visual information in 3D manner, which possesses the first step of the entire 3DTV system chain before 3D coding, transmission and visualization. The 3D capturing plays an important role because precise 3D visual capturing will benefit the whole 3DTV system. During the past decades, various kinds of capturing system have been built for different applications such as...
3D scene information can be represented in several ways. In applications based on a (N-)view plus (N-)depth representation, both view and depth data is compressed. In this paper we present a depth compression method containing an depth up-sample filter which uses the color view as prior. Our method of depth down-/up-sampling is able to maintain clear object boundaries in the reconstructed depth maps...
We have developed a new type of television named FTV (Free viewpoint TV). FTV is an innovative media that enables us to view a 3D scene by freely changing our viewpoints. FTV will be widely used since it is an ultimate 3DTV, a natural interface between human and environment, and an innovative tool to create new types of content and art. FTV has been contributing to the standardization of MVC (Multi-view...
With the advent in display technology, the 3DTV will provide a new viewing experience without the need of wearing special glasses to watch the 3D scenes. One of the key elements in 3DTV is the multi-view video coding, obtained from a set of synchronized cameras, capture the same scene from different view points. The video streams are synchronized and subsequently used to exploit the redundancy contained...
This paper evaluates our 3D view interpolation rendering algorithm and proposes a few performance improving techniques. We aim at developing a rendering method for free-viewpoint 3DTV, based on depth image warping from surrounding cameras. The key feature of our approach is warping texture and depth in the first stage simultaneously and postpone blending the new view to a later stage, thereby avoiding...
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