Exploration rock core digital image acquisition device

Abstract

The invention relates to an exploration rock core digital image acquisition device in the technical field of digital image acquisition equipment. The exploration rock core digital image acquisition device comprises a camera tray clamp used for fixing and lifting a camera; the four telescopic supporting rods are used for adjusting the mounting height of the camera tray clamp and are symmetrically arranged relative to the center of the camera tray clamp; the horizontal limiting stabilizing rod is used for transversely limiting the four telescopic supporting rods; and the limiting feet are arranged at the lower ends of the four telescopic supporting rods. Manual process control is replaced by the device, manual operation errors are basically eliminated, and the image quality is ensured; the device is completely designed according to the requirement of an image acquisition method required by digital image identification, the acquired digital image is high in quality, and the device is suitable for intelligent identification of rock core digital images; the device can be used for hanging awning cloth, so that the interference of ambient light to acquired images is eliminated, and the light of all image results is uniform; the device is easy to install, can be stored and is easy to operate.

Description

technical field [0001] The invention relates to the technical field of digital image acquisition equipment, in particular to a digital image acquisition device for rock core exploration. Background technique [0002] Rock core is an important basic physical material for obtaining underground geotechnical information. In the process of core geological cataloging, obtaining core projection images is an important basic data for archiving the cataloged data. [0003] With the development of imaging technology, the acquisition of drilling core images has gone through the stage of film camera acquisition to digital camera acquisition. With the rapid development of digital imaging technology, digital images already have the characteristics of high pixel, high resolution and high precision. . With the application of computer graphics processing technology and machine learning technology, intelligent image processing technology based on high-resolution images has emerged. Image and...

AI Technical Summary

Problems solved by technology

[0007] 1. During the shooting process with the handheld camera, the spatial position of the camera cannot be placed above the centroid of the core box. The projection position of the core on the photosensitive element of the camera is unevenly distributed, and the position is deviated. Under the distortion of the camera lens, the error increases;

[0008] 2. During the shooting process with the hand-held camera, it is difficult for the camera to be perpendicular to the plane of the core box, so that the overlapping of the shooting axis and the normal line cannot be guaranteed, resulting in increased image distortion and increased errors;

[0009] 3. During the shooting process of the hand-held camera, the height of the camera is not uniform, resulting in inconsistent image area. If it is too large, too much background noise will be collected, and if it is too small, the collection will be incomplete;

[0010] 4. In the traditional acquisition process, the ambient light is easy to produce shadows, resulting in light spots or black shadows on the surface of the core, poor imaging quality, and interference with the texture identification of the core surface

Images