Abstract
Immersive video streaming has become very popular. To increase the quality of experience (QoE) with immersive media, user movement adaptive video streaming, three degrees of freedom plus (3DoF+), has emerged and is expected to meet this growing demand. Satisfying the limit of the bandwidth, providing high-quality immersive experience is challenging because 3DoF+ system requires high resolution, multi-view video transmission. This paper proposes a stride based 3DoF+ 360 video streaming system and introduces two main ideas: (i) a multi-view video redundancy removal method using view synthesis, (ii) a multi-view video residual packing method. The proposed multi-view video compression method removes redundancy between videos and packs them into one video, and it exhibits a BD-rate saving of 36.0% in maximum compared to the results of the high-efficiency video coding reference model. In addition, the proposed system requires fewer number of decoders for the clients, and it decreases the burden for immersive video streaming.
Highlights
The virtual reality (VR) market is consistently growing
The minimum resolution required for VR video that is played through a head-mounted display (HMD) is 4K
This paper proposes a stride based 3DoF+ 360 video streaming system for an immersive experience that satisfies the conditions of the 3DoF+ call for proposals (CfP)
Summary
The virtual reality (VR) market is consistently growing. the necessity for efficient immersive VR technology such as streaming has become more important because of the large amount of data to process in VR systems. This texture contains the color information of the video, and an additional depth map is required when synthesizing a virtual view Source view means a video acquired from a camera; it is provided to the user. The pixels that are included in the central view are removed, the empty areas where the pixels are removed requires additional bitrate even though they are unnecessary. To solve these problems, the proposed system conducts packing.
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