Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fish body moving speed detection method for water quality monitoring

A technology of motion speed and detection method, which is applied in image data processing, instrumentation, calculation, etc., can solve problems such as dependence on hardware equipment, large error, and high algorithm complexity, and achieve the effect of easy implementation, good segmentation effect, and simple principle

Pending Publication Date: 2016-12-14
XIAN UNIV OF POSTS & TELECOMM
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, evaluating water quality pollution by observing fish movement characteristics has become an important biological water quality monitoring method. Fish swimming speed is one of the important parameters to determine fish movement characteristics. Existing fish movement speed detection methods generally rely on hardware. Equipment, high algorithm complexity, large error and other problems, and no effective solution has been proposed. Based on this, it is particularly necessary to design a new fish movement speed detection method suitable for water quality monitoring

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fish body moving speed detection method for water quality monitoring
  • Fish body moving speed detection method for water quality monitoring
  • Fish body moving speed detection method for water quality monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0021] refer to Figure 1-2 , the present embodiment adopts the following technical solutions: a method for detecting fish body motion speed suitable for water quality monitoring, the steps of which are: (1) collect fish body motion video by camera, check the video frame rate, and decode it into MPEG4 compressed video Format;

[0022] (2) Technicians can intercept the motion state of the fish to be detected and the background video according to the requirements, read the video and separate it into pictures frame by frame;

[0023] (3) Perform preprocessing operations such as denoising and enhancement on the image;

[0024] (4) calling the background video frame image, performing background modeling to obtain the final background image;

[0025]...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention, which relates to the technical field of digital image processing, discloses a fish body moving speed detection method for water quality monitoring. A camera collects a fishing body moving video; the video is read and is separated frame by frame; pretreatment is carried out on images; background modeling is carried out to obtain a final background image; an adaptive optimal segmentation threshold value is obtained by using a Otsu algorithm; difference processing is carried out on each video frame of image and the final background image to obtain a fish body moving target image; a fish body moving target mass center position is obtained by using a communication zone mass center method and a mass center is obtained; a ratio value of a practical distance and a pixel coordinate distance is determined and a moving distance of the fish body during a period is solved; moving time is determined based on a relation between a video frame rate and an inter-frame space; a fish body moving rate is solved based on the relation; a moving direction angle of the fish body at a current time is determined; and according to a current position of the fish body and a moving speed rule, a water environment changing situation is analyzed. According to the invention, the moving speed of the fish body can be obtained accurately in real time; the detection cost is lowered; and the detection precision of the algorithm is improved.

Description

technical field [0001] The invention relates to the technical field of digital image processing, in particular to a video image detection method for fish body movement speed suitable for water quality monitoring. Background technique [0002] At present, evaluating water quality pollution by observing fish movement characteristics has become an important biological water quality monitoring method. Fish swimming speed is one of the important parameters to determine fish movement characteristics. Existing fish movement speed detection methods generally rely on hardware. Equipment, high algorithm complexity, large error and other problems, and no effective solution has been proposed. Based on this, it is particularly necessary to design a new type of fish movement speed detection method suitable for water quality monitoring. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a fish movement speed ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20
CPCG06T2207/10016
Inventor 赵小强彭红梅高强许曰强何亚风邓丹朱辉左金鑫娄鹏飞刘茹
Owner XIAN UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com