Non-contact prawn physical sign automatic measuring device based on 3D scanner technology

Abstract

The invention relates to a non-contact prawn physical sign automatic measuring device based on a 3D scanner technology. The non-contact prawn physical sign automatic measuring device comprises a measuring water tank, a 3D scanner and a computer, wherein the four tank walls of the measuring water tank are all glass plates, and are used for accommodating living prawn samples to be measured; the 3D scanner comprises a 3D scanning camera, an annular light source and a cylindrical scanner body; the 3D scanning camera is connected to the computer, and is used for scanning the living prawn samples inthe measuring water tank; the annular light source is used for supplying a light source when the 3D canning camera is used for scanning the living prawn samples; and the computer is used for controlling the 3D canning camera to scan the living prawn samples, then building a model to form a 3D three-dimensional image of the living prawn samples, and extracting physical sign data of the living prawn samples according to the formed 3D three-dimensional image. Through adoption of the non-contact prawn physical sign automatic measuring device, the measuring accuracy is improved greatly; more physical sign data can be obtained; and meanwhile non-contact measurement is adopted, so that the living prawn samples are protected from being injured.

Description

technical field [0001] The invention relates to the technical field of prawn measurement, in particular to a non-contact automatic measurement device for prawn signs based on 3D scanner technology. Background technique [0002] Traditional prawn measurement is generally to directly grab live or dead shrimp and measure with a ruler. The main problem of this method is that it is easy to bruise the shrimp body. If you hold it in your hand, the prawn will bounce in response to stress, and the measurement will cause large errors; another One method is to scald the shrimp to death, straighten them, take pictures with a camera, and measure them with computer image software. In this method, the shrimp must be in a dead state and cannot be recycled. For experiments with more samples, a large amount of samples will be consumed, and the camera will take pictures. The lens is a curved surface, and this kind of shooting is a macro shooting. The image will be deformed as the center of the...

AI Technical Summary

Problems solved by technology

[0003] For this reason, it is necessary to provide a non-contact automatic measuring device for prawn signs based on 3D scanner technology, which can solve the problems that there are large errors in the existing prawn measurement and that the existing measurement is easy to cause damage to the prawn.

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