Pig weight measurement method and system based on images

Abstract

The present invention discloses a pig weight measurement method and system based on images. The method comprises the steps of: performing marking of a pig body outline and an ear tag outline in a sample image, and recording a pig weight; calculating the pixel number in the pig body outline and the ear tag outline, and establishing a pig weight regression model; training semantic segmentation models of the big body and the ear tag; segmenting a body weight measurement image to semantic segmentation images; calculating the pixel areas which are located by the pig body area and the ear tag segmentation area, and calculating the actual area of the pig body according to the actual area of the ear tag; and employing the pig weight regression model to obtain a pig weight. The pig weight measurement method and system based on images ensure the safety and the hygiene and health of measurers, improve the efficiency for obtaining the pig body length data and greatly reduce the cost.

Description

technical field [0001] The invention relates to the technical field of image recognition, in particular to an image-based pig weight measurement method and an image-based pig weight measurement system. Background technique [0002] In the process of pig breeding, the weight of pigs is an important indicator to reflect the growth status of pigs. Timely monitoring of pig body weight indicators is of great significance for pig breeding and disease monitoring. [0003] In insurance claims, it is a common way to settle claims based on the weight of dead pigs, but in the process of claim settlement, there are cases of fraudulent insurance by artificially increasing the weight of pigs such as injecting water into the body of dead pigs. [0004] In traditional production, the weight is mainly measured by scales. When measuring the weight of live pigs, the pigs need to be fixed on the scales. This method of measurement requires a lot of time and manpower, is inefficient, and may caus...

AI Technical Summary

Problems solved by technology

[0003] In insurance claims, it is a common way to settle claims based on the weight of dead pigs, but in the process of claim settlement, there are cases of fraudulent insurance by artificially increasing the weight of pigs such as injecting water into the body of dead pigs

[0004] In traditional production, the weight is mainly measured by scales. When measuring the weight of live pigs, the pigs need to be fixed on the scales. This method of measurement requires a lot of time and manpower, is inefficient, and may cause frightening effects on pigs its growth and development

In the process of insurance claims, many dead pigs have been infected with germs or rotted. The way of weighing the dead pigs manually will cause serious hygiene problems.

[0005] In the existing technology, some studies use a fixed-size object placed on the back of the pig, and a camera placed directly above the pig house to collect images of the pig and the reference object for weight measurement. This process requires human intervention and cannot solve the problem of safety and Hygienic issues, and because the reference cannot be standardized and easily replaced, it cannot be used in the insurance claim stage

There is also a weight measurement system that can be used in the pig house, but it needs to set up two image acquisition devices with a fixed distance. Due to the fixed location, its usage scenarios have great limitations.

In addition, the existing image-based weight measurement methods have high requirements on the number and angle of image acquisition equipment, or require fixed reference objects, which limits its use scenarios

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