US 10,853,949 B2Granted

Image processing device

AssigneeHitachi Kokusai Electric Inc.

InventorsYuichiro Komiya, Muneaki Yamaguchi, Hiroaki Nakakita, Kazunari Iwanaga, Junichi Togashi, Yohei Akimoto, Masaya Okada, Atsushi Sassa, Wataru Ito

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Abstract

The purpose of the present invention is to provide a technology which adaptively switches video analysis methods according to a congestion situation within a video, and which carries out a suitable video analysis by a limited computational volume. Provided is an image processing device 100, wherein a congestion estimation unit 102 estimates a congestion situation within a video which is acquired from an image input unit 101. A control unit 103 switches methods for video analysis according to the congestion situation. In a situation of low congestion, an image analysis unit for use in normal situations 105 carries out the video analysis by a basic method. In a situation of high congestion, an image analysis unit for use in congested situations 106 carries out a high-precision video analysis, such as an analysis which spans a plurality of frames.

Claims4

Dependent claims

An image processing device that extracts information from a video image shot by a video device, the image processing device comprising:

a controller that:
estimates a congestion degree in a shooting region in real time based on the video image;
extracts information on an object other than a background from the video image using a plurality of image analysis techniques including a first analysis technique for real-time processing and a second analysis technique for non-real-time processing, the information on the object including information relating to a region of a person and a region of a left object;
and
selects one of the plurality of image analysis techniques to be used for image analysis according to the estimated congestion degree;
and
an image recorder that records the video image,
wherein the controller acquires a video image for use in the image analysis from the image recorder according to historical information on a change in the congestion degree and performs image analysis using the second analysis technique.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/327,745Filed 21 Sep 2017
Priority: JP 2016-18920828 Sep 2016
Published: US 2019/0180447 A113 Jun 2019
Granted: 1 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04N 7/188
Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast: capturing isolated or intermittent images…
G06F 18/285
Analysing: selection of pattern recognition techniques, e.g. of classifiers in a multi-classifier system
G06T 7/20
Image analysis: analysis of motion
G06V 10/87
Using pattern recognition or machine learning: using selection of the recognition techniques, e.g. of a classifier in a multiple classifier system