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Image analysis method and device

An image analysis, image technology, applied in image analysis, image enhancement, image data processing and other directions, can solve the problem of time-consuming, high-throughput automatic analysis of different animals and other problems

Active Publication Date: 2022-05-27
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above two types of analysis methods require a lot of time for sample generation and training, and once the tracking object is changed, the model needs to be retrained, so this type of method is not suitable for high-throughput automatic analysis of different animals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134] Example 1: Open Field Experiment

[0135] The open field experiment, also known as the open-box experiment, is a method to evaluate the autonomous behavior, exploration behavior and tension of experimental animals in a novel environment. Animals' fear of the new open environment is mainly active in the peripheral area, and less in the central area, but the animal's exploratory characteristics make it motivated to act in the central area, and the resulting anxiety can also be observed. Central stimulant drugs can significantly increase voluntary activities and reduce exploratory behavior, and a certain dose of antipsychotic drugs can reduce exploratory behavior without affecting voluntary activities.

[0136] Experiment preparation:

[0137] Rats are generally used as experimental animals in open field experiments. The height of the open field reaction box for rats is 30-40 cm, the length of the bottom edge is 100 cm, the height of the open field reaction box for mice i...

Embodiment 2

[0142] Example 2: Cross Field Experiment

[0143] The cross field experiment is to use the contradiction between the animal's fear of the open environment and the exploration characteristics of the new environment to examine the animal's anxiety state. The cross field consists of two open arms and two closed (wall shading) arms. Animals with high levels of anxiety were more likely to stay in closed arms for longer periods of time than animals with low levels of anxiety.

[0144] Experiment preparation:

[0145] Cross field experiments generally use mice as experimental animals. For rats, the arm width of the cross field is 10cm, the arm length is 50cm, the height of the closed arm is 40cm, and the height of the cross field from the ground is 60-70cm; The length is 35cm, the height of the closed arm is 15cm, and the height of the cross field from the ground is about 40-55cm; a camera is placed 2 m above the cross field, and the field of view of the camera can cover the entire...

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Abstract

The invention provides an image analysis method which can be applied to the field of animal behavior analysis and the technical field of image processing. The image analysis method comprises the following steps: acquiring a video sequence image of a target video; determining a background frame image according to n frames of video images in the video sequence; calculating an ith difference image corresponding to the ith video image by using a background difference method according to the background frame image and the ith video image; performing filtering processing on the ith difference image to obtain an ith processed image; performing opening operation on the ith processed image to obtain an ith intermediate image; determining an overlapping region of the ith intermediate image and the (i-1) th mask image of the target animal, wherein the maximum connected domain of the overlapping region on the ith difference image is the ith mask image of the target animal; and determining a motion track of the target animal according to the n mask images, and analyzing behaviors of the target animal. The invention further provides an image analysis device.

Description

technical field [0001] The invention relates to the field of animal behavior analysis, in particular to image processing technology, and more particularly to an image analysis method and device. Background technique [0002] With the rapid development of machine learning, the detection modules of current animal behavior analysis systems mostly use machine learning methods, which are roughly divided into correlation filtering and deep learning to achieve effective animal tracking and pose estimation. [0003] However, the above two types of analysis methods need a lot of time for sample generation and training, and once the tracking object is replaced, the model needs to be retrained, so these methods are not suitable for high-throughput automatic analysis of different animals. SUMMARY OF THE INVENTION [0004] In view of the above problems, the present invention provides an image analysis method and apparatus. [0005] According to a first aspect of the present invention,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/30G06T7/246
CPCG06T5/30G06T7/246G06T2207/10016G06T2207/30241
Inventor 刘际李中中
Owner UNIV OF SCI & TECH OF CHINA