US 11,445,223 B2Granted

Loss detection for encoded video transmission

AssigneeMicrosoft Technology Licensing, LLC

InventorsSergey Sablin, Adriana Dumitras, Gary J. Sullivan

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Abstract

Video data is received at a decoding device. An encoded first frame of the video data is received with a current frame description for the first frame comprising: an identifier of the first frame, and an indicator of a storage location at the receiving device for the first frame and its frame identifier. An encoded second frame of the video data is also received with at least one reference frame description for the second frame comprising: a reference frame identifier, and an indicator of said storage location. This allows the decoding device to check that the correct reference frame for decoding the second frame is stored thereat. Corresponding encoding operations are also disclosed.

Claims20

Dependent claims

A device comprising:

a processor;
and
a memory in communication with the processor, the memory comprising executable instructions that, when executed by the processor, cause the processor to control the device to perform functions of:
receiving, via a communication network, an encoded first frame of video data and a first frame description for the first frame, the first frame description comprising (1) a first frame identifier of the first frame and (2) an indicator of a storage location at the device at which the first frame and the first frame identifier are to be stored;
decoding the first frame;
storing the first frame and the first frame identifier at the storage location indicated in the first frame description;
receiving, via the communication network, an encoded second frame of the video data and a reference frame description for the second frame, the reference frame description comprising (1) a reference frame identifier of a reference frame for the second frame and (2) an indicator of the storage location at which the reference frame is stored;
accessing, based on the indicator in the reference frame description, the first frame identifier stored at the storage location;
comparing the first frame identifier with the reference frame identifier;
determining that the first frame identifier matches the reference frame identifier;
and
decoding, using the first frame as the reference frame for inter-frame decoding, the second frame.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/377,620Filed 13 Dec 2016 · us provisional application
Priority: 9 Sep 2016
Published: US 2018/0077421 A115 Mar 2018
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

H04N 19/895
Involving methods or arrangements for detection of transmission errors at the decoder: in combination with error concealment
H04N 19/503
Using predictive coding: involving temporal prediction
H04N
Pictorial communication

Family

Application62/385,694Us provisional application · filed 9 Sep 2016
US 2018/0077421 A1Pre-grant publication · published 15 Mar 2018
US 11,445,223 B2This patent

From the US filing history. Foreign family members aren’t listed.

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