Kannangara C.S.,Robert Gordon University |
Philp J.M.,Robert Gordon University |
Richardson I.E.,Robert Gordon University |
Bystrom M.,OneCodec |
De Frutos Lopez M.,Charles III University of Madrid
IEEE Transactions on Circuits and Systems for Video Technology | Year: 2010
Fully configurable video coding is a novel approach to video compression in which a video decoder can be dynamically constructed based on a decoder description. This paper presents a new syntax for describing video decoder functionality and structure, namely, the decoder description syntax (DDS). The DDS is a platform-independent syntax that can define all aspects of a video decoder in terms of basic processing instructions. A DDS description of a video decoder may be coded and transmitted, and then executed by a generic processing platform, a universal video decoder (UVD). Any new or modified video decoding function may be described, communicated, and instantiated using the DDS, which makes it possible to rapidly implement new coding algorithms, to dynamically adapt the coding algorithm to suit the video data, and to efficiently implement multiple coding formats on one platform. We present examples of video decoding functions implemented in the DDS and show how these may be executed on a UVD. We demonstrate that flexible configuration, re-configuration, and decoding of video can be achieved using a real-time prototype UVD with functions transmitted and instantiated on-the-fly using the DDS. © 2010 IEEE.
Bystrom M.,OneCodec |
Richardson I.,OneCodec |
Kannangara S.,Robert Gordon University |
de-Frutos-Lopez M.,Charles III University of Madrid
Signal Processing: Image Communication | Year: 2010
The long timescale between the development of new technologies for video coding and their adoption into standards results in a slow improvement in compression efficiency despite the scale of ongoing research into new compression techniques. Standards-based codecs have limited capabilities to adapt to changes in video content, delivery environments, or platforms. There is a growing recognition, for example, with the MPEG Reconfigurable Video Coding initiative, that increased codec flexibility is needed. However, we anticipate that even further developments are required to address these stumbling blocks to video coder advancement. To this end, we present a new approach to video coding which enables flexible and dynamic re-configuration of video coding functions. This adaptability is achieved by sending configuration information to the decoder during a communications session as part of the compressed video signal. The decoder responds to this information by reconfiguring itself to adapt the video decoding process as prompted by the encoder. In this paper we describe a particular example of how dynamic re-configuration may be implemented in a simple video coding scenario, namely, a video coder is reconfigured dynamically by sending descriptions of new transforms during coding. We evaluate five approaches to re-configuration and show that all demonstrate rate-distortion gains over baseline coders, despite the rate increase due to sending configuration information. © 2010 Elsevier B.V. All rights reserved.
He Z.,InfraReDx |
Signal Processing: Image Communication | Year: 2012
Due to their abilities to succinctly capture features at different scales and directions, wavelet-based decomposition or representation methods have found wide use in image analysis, restoration, and compression. While there has been a drive to increase the representation ability of these methods via directional filters or elongated basis functions, they still have been focused on essentially piecewise linear representation of curves in images. We propose to extend the line-based dictionary of the beamlet framework to one that includes sets of arcs that are quantized in height. The proposed chordlet dictionary has elements that are constrained at their endpoints and limited in curvature by system rate or distortion constraints. This provides a more visually natural representation of curves in images and, furthermore, it is shown that for a class of images the chordlet representation is more efficient than the beamlet representation under tight distortion constraints. A data structure, the fat quadtree and an algorithm for determining an optimal chordlet representation of an image are proposed. Codecs have been implemented to illustrate applications to both lossy and lossless low bitrate compressions of binary edge images, and better rate or ratedistortion performance over the JBIG2 standard and a beamlet-based compression method are demonstrated. © 2011 Elsevier B.V. All rights reserved.
OneCodec | Date: 2013-01-25
Systems and methods for encoding, sharing and decoding of multimedia data are disclosed. The systems and methods include multimedia decoding instantiation systems and multimedia processing engines which are capable of being upgraded or reconfigured to support a new or previously-unsupported compression format, without the need for platform-specific software or hardware upgrades. The systems and method further include transmission and storage of compressed data and functionality on a host device.
OneCodec | Date: 2011-08-17
Systems and methods for multimedia encoding and decoding are disclosed. The systems and methods include multimedia format detection systems, decoder functionality generation systems, decoder instantiation systems, and multimedia processing engines which are capable of selecting a decoder or playback mechanism for each input encoded multimedia stream. The functionality of the decoder or playback mechanism is represented as syntax elements which may be further encoded. The functionality for decoding or playback is then stored or transmitted with the multimedia bitstream. Alternatively, the functionality and multimedia bitstream can be embedded in or associated with a second digital bitstream. Further, the functionality associated with an encoded multimedia stream can be used to instantiate a decoder or playback mechanism and the encoded multimedia stream decoded with the instantiated decoder or mechanism.
OneCodec | Date: 2011-09-20
Systems and methods for encoding, transmitting, and decoding are disclosed. The systems and methods include multimedia encoding, transmitting, and decoding instantiation systems which are capable of being modified on the basis of associated IPR costs. Further, the systems and methods include the capabilities of recording or transmitting the IPR and/or IPR costs associated with the instantiated encoders, transmitters, or decoders.
OneCodec | Date: 2011-08-17
Systems and methods for encoding and decoding are disclosed. The systems and methods include multimedia decoder instantiation systems and multimedia processing engines which are capable of being upgraded or reconfigured to support a new or previously-unsupported compression format, without the need for platform-specific software or hardware upgrades.
OneCodec | Date: 2016-01-05
Computer software and software application for use in storing, accessing, updating, editing, organizing, tagging, sharing and transmitting data, documents, files, information, video and multimedia content via a global computer network; Software development tools and application programming interface (API) software to enable integration of video content and functionality into websites, software applications and electronic devices. Telecommunications services, namely, transmission of messages, data, video, and multimedia content over global communications networks, the internet and wireless networks; Providing user access to a global computer network featuring a video and multimedia sharing portal; Broadcasting services, namely, broadcasting digital programs in the nature of video and multimedia programs via a global communications network, the internet and wireless networks. Hosting of digital content on the internet; Software as a service for creating, uploading, and sharing of video and media content on computer networks; Application service provider (ASP), namely, hosting computer software applications of others; Electronic storage of files, documents, information, images and multimedia content; Electronic data storage, namely, computerized content storage and computerized retrieval services, namely, searching and retrieving data, multimedia content, information, sites and other resources available on computer networks for others. On-line social networking services allowing users to create, share, tag and exchange user generated content.
OneCodec | Entity website
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