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Optimal signal encoding based on experimental data

a signal encoding and experimental data technology, applied in the field of signal encoding and transcoding in a multimedia system, can solve problems such as interoperability

Active Publication Date: 2019-09-19
ECOLE DE TECH SUPERIEURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rapid development of the mobile-communications technology contributes to the rapid proliferation of mobile terminals of different types, thus creating interoperability problems.
Such problems also arise in video streaming where content needs to be adapted to support various terminals operating over numerous wired and wireless networks.

Method used

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  • Optimal signal encoding based on experimental data
  • Optimal signal encoding based on experimental data
  • Optimal signal encoding based on experimental data

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0116]FIG. 1 illustrates a communications system where an originating node 110 distributes multimedia signals to a number of receiving nodes 160 through a network 130. The originating node has an encoder 114 for encoding signals acquired from an information source 112. Naturally, a receiver and other rudimentary elements of a communications node precede the encoder and are not illustrated in FIG. 1. The information source 112 may represent a plurality of information sources any of which may be collocated with the encoder or accessed through a dedicated communications path or a path through a network, including the illustrated network 130. A transmitter 116 transmits encoded signals produced by encoder 116 over a channel to network 130. The originating node may have multiple encoders 114 and multiple transmitters 116 and may connect to network 130 through multiple channels directed to multiple network ports.

[0117]A receiving node 160 (individually 160-a, 160-b, etc.) has a receiver 1...

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Abstract

A method and apparatus for optimal signal encoding based on reference data relating encoded-signal characteristics to encoding parameters are disclosed. Reference vectors of encoding parameters and corresponding measurements of encoded-signal characteristics are used to establish a functional relationship between each characteristic and the encoding parameters. Candidate vectors of encoding parameters are identified based on user-defined boundaries of both the encoding parameters and acceptable encoded-signal characteristics. A figure of merit is determined for each candidate vector and the candidate vector of highest figure of merit is presented to an encoder.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a Continuation-in-Part of U.S. application Ser. No. 14 / 217,007 filed Mar. 17, 2014, now U.S. Pat. No. 9,661,331 issued May 23, 2017, which is a Continuation-in-Part of U.S. Ser. No. 14 / 188,537 filed Feb. 24, 2014, which is a Continuation-in-Part of U.S. application Ser. No. 14 / 192,682 filed Feb. 27, 2014.[0002]The present application further claims the benefit of U.S. provisional application 61 / 802,782 filed Mar. 18, 2013.[0003]The present application also claims the benefit of Canadian Application 2,809,731 filed Mar. 18, 2013.[0004]The entire contents of the above noted patents and applications are incorporated herein by reference.FIELD OF THE INVENTION[0005]The present invention relates to signal encoding and transcoding in a multimedia system. In particular, the invention is directed to methods and apparatus for realizing optimum encoding or transcoding.BACKGROUND OF THE INVENTION[0006]Multimedia Messaging S...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N19/40H04N19/136H04N19/132H04N19/46
CPCH04N19/136H04N19/40H04N19/46H04N19/124H04N19/132H04L65/762H04L65/70
Inventor COULOMBE, STEPHANEJOSET, DIDIERBESHAI, MAGED E.
Owner ECOLE DE TECH SUPERIEURE