Method for analysing a video sequence and equipment for implementing said method

Patent metadata

Field	Value
Publication number	US-2018302627-A1
Application number	US-201615569446-A
Country	US
Kind code	A1
Filing date	Apr 20, 2016
Priority date	Apr 28, 2015
Publication date	Oct 18, 2018
Grant date	—

Abstract

Disclosed is a method for analyzing a set of images of a video sequence with a view to performing a processing of the sequence. The method includes: determining, in the video sequence, a plurality of disjointed consecutive sub-sequences of at least one successive image according to the type of processing to be carried out and according to the content of the video sequence; and analyzing the images of each sub-sequence determined in the video sequence.

First claim

1 - 12 . (canceled)

13 . A method for analyzing a set of images from a video sequence intended for a processing to be carried out on the sequence, the method comprising:
determining in the video sequence a plurality of unconnected consecutive sub-sequences of one or more successive images; analyzing the images of each determined sub-sequence in the video sequence; wherein the sub-sequences are determined depending on the type of processing to be carried out and depending on the content of the video sequence.

14 . The method according to claim 13 , wherein the respective sizes of the sub-sequences and the respective gaps between two adjacent sub-sequences are determined depending on the type of processing to be carried out and depending on the content of the video sequence.

15 . The method according to claim 14 , wherein the sub-sequences have an identical size, with the exception of the last sub-sequence of the plurality of consecutive sub-sequences.

16 . The method according to claim 15 , wherein the size of the last sub-sequence is chosen to be greater than or equal to the size of the other sub-sequences.

17 . The method according to claim 14 , wherein with the exception of the gap between the last sub-sequence of the plurality of consecutive sub-sequences and the sub-sequence adjacent to the last sub-sequence, the respective gaps between two adjacent sub-sequences are identical.

18 . The method according to claim 13 , further comprising: generating analysis results of the video sequence, by extrapolation of the results of analysis of the sub-sequences of the video sequence.

19 . The method according to claim 13 , wherein at least one of the sub-sequences contains a single image.

20 . The method according to claim 13 , wherein the sub-sequences are also determined depending on the speed of analysis or the accuracy of the analysis.

21 . A device for analyzing a set of images from a video sequence intended for processing to be carried out on the sequence, comprising:
an input interface configured in order to receive the video sequence; a sequence analysis unit, comprising a processor coupled operationally to a memory, configured in order to:
determine in the video sequence a plurality of unconnected consecutive sub-sequences of one or more successive images, depending on the type of processing to be carried out and depending on the content of the video sequence;
analyze the images of each determined sub-sequence in the video sequence.

22 . A Non-transitory computer readable storage medium for a program capable of being executed by computer, comprising a set of data representing one or more programs, said one or more programs comprising instructions so that during the execution of said one or more programs by a computer comprising a processing unit operationally coupled with a memory and an input/output interface module, the computer is made to analyze the images of a video sequence according to the method of claim 13 .

Assignees

• Ateme

Inventors

• Larbier Pierre

Classifications

• H04N19/142

  Detection of scene cut or scene change · CPC title

• H04N19/46

  Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence) · CPC title

• H04N19/177

  the unit being a group of pictures [GOP] · CPC title

• H04N19/136 Primary

  Incoming video signal characteristics or properties · CPC title

• H04N19/172

  the region being a picture, frame or field · CPC title