Patent
Systems and methods with error resilience in enhancement layer bitstream of scalable video coding
TLDR
In this paper, a scalable layered video coding scheme that encodes video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video, adds error resilience to the enhancement layer.Abstract:
A scalable layered video coding scheme that encodes video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video, adds error resilience to the enhancement layer. Unique resynchronization marks are inserted into the enhancement layer bitstream in headers associated with each video packet, headers associated with each bit plane, and headers associated with each video-of-plane (VOP) segment. Following transmission of the enhancement layer bitstream, the decoder tries to detect errors in the packets. Upon detection, the decoder seeks forward in the bitstream for the next known resynchronization mark. Once this mark is found, the decoder is able to begin decoding the next video packet. With the addition of many resynchronization marks within each frame, the decoder can recover very quickly and with minimal data loss in the event of a packet loss or channel error in the received enhancement layer bitstream. The video coding scheme also facilitates redundant encoding of header information from the higher-level VOP header down into lower level bit plane headers and video packet headers. Header extension codes are added to the bit plane and video packet headers to identify whether the redundant data is included.read more
Citations
More filters
Patent
Method and apparatus for decoding/encoding a video signal
TL;DR: In this article, a method of decoding a video signal is described, which includes obtaining identification information indicating whether a coded picture of a current NAL unit is an inter-view picture group, obtaining interview reference information of the interview picture groups, and constructing a reference picture list for interview prediction.
Patent
Method and apparatus for data packet transport in a wireless communication system using an internet protocol
TL;DR: In this paper, a multicast tree is built between nodes through neighboring routers to form a tunnel through which the broadcast content is transmitted, and the broadcast message is encapsulated in an Internet Protocol packet for transmission through the multicast trees.
Patent
Personal media broadcasting system with output buffer
Jason Krikorian,Blake Gary Krikorian,Bhupendra Shah,Raghuveer Tarra,Parimal Bajpai,Vijayachandran Mariappan +5 more
TL;DR: In this article, a personal media broadcasting system enables video distribution over a computer network and allows a user to view and control media sources over the computer network from a remote location, where a personal broadcaster receives an input from one or more types of media sources, digitizes and compresses the content, and streams the compressed media over the network.
Patent
Capturing and sharing media content
TL;DR: In this article, a media device allows users to watch and capture portions from a media stream, and then share the captured media content with other users by defining a media clip by selecting boundaries in the cached portion of the media stream.
Patent
Method for effectively implementing a multi-room television system
TL;DR: In this article, a method for effectively implementing a multi-room television system includes a digital base station that processes and combines various program sources to produce a processed stream, and a communications processor then responsively transmits the processed stream as a local composite output stream to various wired and wireless display devices for flexible viewing at variable remote locations.
References
More filters
Journal ArticleDOI
Capacity of a burst-noise channel
TL;DR: The capacity C of the model channel exceeds the capacity C(sym. bin.) of a memoryless symmetric binary channel with the same error probability; however, the difference is slight for some values of h, p, P; then, time-division encoding schemes may be fairly efficient.
Journal ArticleDOI
Error control and concealment for video communication: a review
Yao Wang,Qin-Fan Zhu +1 more
TL;DR: In this paper, a review of error control and concealment in video communication is presented, which are described in three categories according to the roles that the encoder and decoder play in the underlying approaches.
Proceedings ArticleDOI
Measurement and modelling of the temporal dependence in packet loss
TL;DR: It is found that a large memory size is necessary and that the sliding windowaverage provides a more accurate estimate for the same effective memory size than the exponential smoothing or a sliding window average to estimate average loss rate.
Journal ArticleDOI
Error-resilient video coding in the ISO MPEG-4 standard
TL;DR: In this paper, error resilience aspects of the video coding techniques that are standardized in the ISO MPEC-4 standard are described, including resynchronization strategies, data partitioning, reversible variable length codes (VLCs), and header extension codes.
Patent
System and method for fine granular scalable video with selective quality enhancement
TL;DR: In this paper, an adaptive quantization controller for video encoder comprising a base layer circuit for receiving an input stream of video frames and generating compressed base layer video frames suitable for transmission to a streaming video receiver is presented.