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Multifunctional curved-surface physical evidence image flattening instrument

A multifunctional, curved surface technology, applied in the field of devices in the field of sampling technology, can solve the problems of not being able to scan large areas, and achieve the effect of improving the efficiency and accuracy of evidence collection, and improving resolution and clarity

Active Publication Date: 2015-04-29
SHANGHAI CRIMINAL SCI TECH RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Multifunctional curved-surface physical evidence image flattening instrument

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Embodiment 1

[0022] Such as figure 1 As shown, this embodiment includes: operating console 1, CCD digital imaging system 2 arranged on operating console 1, combined lighting source 3, lifting mechanism 4, horizontal moving mechanism, self-adjusting arm 6, and rotating stage 7 , rotating motor 16, image control system and computer 18, wherein: the image control system automatically rotates and expands the object to be measured by rotating the stage according to the expansion angle input by the user, and the image control system sends a completion signal to the computer 18 after expansion, Then the computer 18 controls the opening and closing of the CCD digital imaging system 2 and the lighting combination light source 3 respectively, controls the lifting mechanism 4 to adjust the height of the CCD digital imaging system 2 and the lighting combination light source 3, and controls the horizontal movement mechanism to adjust the height of the rotary stage 7. Horizontal position, control the ro...

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Abstract

The invention discloses a multifunctional curved-surface physical evidence image flattening instrument and belongs to the technical field of sampling. According to the multifunctional curved-surface physical evidence image flattening instrument, an object to be detected is automatically rotated and spread through a rotary objective table, an image control system sends a completion signal to a computer after the object to be detected is spread, then the computer controls starting and stopping of a CCD digital imaging system and an illuminating combined light source, a lifting control mechanism adjusts the height of the CCD digital imaging system and the height of the illuminating combined light source, a horizontal movement control mechanism adjusts the horizontal position of the rotary objective table, a control rotary motor adjusts the movement of an automatic adjustment arm so that the object can be fixed and regulates the rotating speed of the rotary objective table so that the object to be detected can rotate on the rotary objective table by a plurality of angles, the CCD digital imaging system is used for obtaining the image information, at any angles, of the surface of the object to be detected, the image information is transmitted to the image control system, and then image integration is achieved by conducting data processing. According to the multifunctional curved-surface physical evidence image flattening instrument, plane image information can be obtained from a curved surface through automatic rotation and scanning of the rotary objective table by means of 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. [...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/1318
Inventor 蔡能斌糜忠良邹芸黄晓春徐宝桢姜梅裴耀祥秦真科马克
Owner SHANGHAI CRIMINAL SCI TECH RES INST
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