Image-based pig weight measurement method and system

Abstract

The invention discloses an image-based pig weight measurement method and system, wherein the pig weight measurement method includes: marking the pig body position and ear tag position, as well as the pig body contour points and ear tag contour points in the sample image; Body position and ear tag position training feature detection model; according to pig body contour points and ear tag contour point training contour point regression model; determine the pig body position and ear tag position in the body length measurement image; determine the calibration in the body length measurement image Contour point position and ear tag contour point position; calculate the pixel length of the pig body and ear tag; calculate the actual body length of the pig body; establish a pig weight regression model; use the pig weight regression model to obtain the pig weight. Through the technical scheme of the invention, the safety and health of the measuring personnel are guaranteed, the efficiency of obtaining pig weight data is improved, and the cost is greatly reduced.

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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