Multifunctional Curved Surface Evidence Image Flattener

Abstract

A multifunctional surface evidence image flattener in the field of sampling technology, which automatically rotates and unfolds the object to be tested by rotating the stage, and the image control system sends a completion signal to the computer after unfolding, and the computer controls the CCD digital imaging system and lighting respectively. Combined light source opening and closing, control the lifting mechanism to adjust the height of the CCD digital imaging system and lighting combined light source, control the horizontal movement mechanism to adjust the horizontal position of the rotating stage, and control the rotating motor to adjust the movement of the self-adjusting arm for fixing Object, adjust the rotation speed of the rotating stage, so that the object to be measured completes the rotation of several angles on the rotating stage, and the CCD digital imaging system obtains image information at various angles on the surface of the object to be measured, and the image information is transmitted to the image control system , carry out data processing and integrate the pictures. The invention realizes the acquisition of plane image information from the curved surface through the automatic rotation scanning of the rotating stage and corresponding image processing software.

Description

technical field [0001] The invention relates to a device in the technical field of sampling, in particular to a multifunctional curved surface evidence image flattener. Background technique [0002] In the field investigation, it is often necessary to display and extract potential fingerprints on some cylindrical objects. These common physical evidences are: handprints of stainless steel placed on the window grille in burglary cases, fingerprints on the handle of murder weapons in murder cases, anesthesia robbery Due to the special optical properties of the cylindrical objects such as the fingerprints on the beverage bottle in the case, in the usual light distribution method, strong reflection spots will be generated on the surface of the object, which will seriously interfere with the fingerprint lines. It is one of the difficulties in field survey technology when using various technical means to eliminate the spot interference on the surface of the cylindrical object. [...

AI Technical Summary

Problems solved by technology

But the shortcomings of this existing technology: this technology is mainly aimed at the imaging of biochip identifiers, and it must be determined by measurement that it is a plane or a curved surface, and it cannot be scanned in a large area

It is not a device aimed at the acquisition of potential traces in the field of criminal science and technology, and is not suitable for imaging objects with large curved surfaces

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