Video transmission and sharing over ultra-low bitrate wireless communication channel
First Claim
Patent Images
1. A method comprising:
- capturing or retrieving a video sequence at a communication device that includes a plurality of databases, each of the plurality of databases comprising a plurality of images, the plurality of databases including a first database and a second database;
segmenting a first frame of the video sequence into at least a first region and a second region;
using the first database, determining a first mapping function for the first region;
synthesizing a first image of the first region using the first mapping function and the first database;
determining a first synthesis fidelity of the first image of the first region;
using the second database, determining a second mapping function for the first region;
synthesizing a second image of the first region using the second mapping function and the second database;
determining a second synthesis fidelity of the second image of the first region;
selecting the first image based on a selection criterion, the selection criterion resulting in the second synthesis fidelity being less optimal than the first synthesis fidelity; and
sending the first mapping function and information identifying the first database from the communication device to at least one remote device over a wireless communication link in an ultra low bit rate channel.
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Abstract
Techniques for transmitting and sharing a video sequence over an ultra-low bandwidth channel, such as a short message service (SMS) channel, are disclosed herein. A video is segmented into regions of various interest levels. A set of parameters is developed from a video region of a high interest, wherein the parameters represent a mapping function of a database to model the video region. The set of parameters is transmitted over the ultra-low bandwidth channel to a remote device, wherein the remote device also has access to an instance of the database. The remote device synthesizes the video by using the mapping function of the database, which is represented by the transmitted set of parameters.
36 Citations
32 Claims
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1. A method comprising:
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capturing or retrieving a video sequence at a communication device that includes a plurality of databases, each of the plurality of databases comprising a plurality of images, the plurality of databases including a first database and a second database; segmenting a first frame of the video sequence into at least a first region and a second region; using the first database, determining a first mapping function for the first region; synthesizing a first image of the first region using the first mapping function and the first database; determining a first synthesis fidelity of the first image of the first region; using the second database, determining a second mapping function for the first region; synthesizing a second image of the first region using the second mapping function and the second database; determining a second synthesis fidelity of the second image of the first region; selecting the first image based on a selection criterion, the selection criterion resulting in the second synthesis fidelity being less optimal than the first synthesis fidelity; and sending the first mapping function and information identifying the first database from the communication device to at least one remote device over a wireless communication link in an ultra low bit rate channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification