Immersive video offers the freedom to navigate inside virtualized environment. Instead of streaming the bulky immersive videos entirely, a viewport (also referred to as field of view, FoV) adaptive streaming is preferred. We often stream the high-quality content within current viewport, while reducing the quality of representation elsewhere to save the network bandwidth consumption. Consider th...

In this paper, we present an image-based method for the tracking and rendering of faces. We use the algorithm in an immersive video conferencing system where multiple participants are placed in a common virtual room. This requires viewpoint modification of dynamic objects. Since hair and uncovered areas are difficult to model by pure 3-D geometry-based warping, we add image-based rendering tech...

Omnidirectional video is an adequate image-based scene representation data format for interactive walkthroughs or surround viewing of a scene over the Internet. While efficient compression is a key issue in this context, the properties of omnidirectional video are not in line with the assumptions that are made about video sequences by modern compression standards like MPEG-4 AVC/H.264. We intro...

Crucial to the t ransformat ion of computers into intel l igent mul t imed ia systems is the abi l i ty to access, manipulate and manage visual informat ion . In part icular , video data is becoming a prevalent source of such in format ion. Our Multiple Perspective Interactive Video (MPIVideo), project integrates a variety of visual comput ing operations w i t h model ing and interact ion techn...

In Multi-user Feedback support system or 360 0 Feedback, data on the performance of an individual are collected systematically from a number of stakeholders and are used for improving performance. The 360 0 Feedback approach provides a consistent management philosophy meeting the criterion outlined previously. The 360 0 feedback based appraisal is a comprehensive method where in the feedback ab...

360◦ video consists of images capturing the complete scene as seen from a single point in any direction. In contrast to conventional images, 360◦ images cannot be natively represented in a planar fashion. Consequently, video created from a sequence of 360◦ images suffers from geometric distortions. These are caused by mapping of the images from a sphere in 3D space to a planar image. This paper...

Omnidirectional image and video, also known as 360 image and 360 video, are gaining in popularity with the recent growth in availability of cameras and displays that can cope with such type of content. As omnidirectional visual content represents a larger set of information about the scene, it typically requires a much larger volume of information. Efficient compression of such content is there...