Linear array camera based automatic panoramic acquisition system for outer surface of cylindrical surface

A line-scan camera and automatic acquisition technology, which is applied in the direction of optical devices, measuring devices, instruments, etc., can solve the problems of high precision design requirements, large system resource occupation, and inaccurate images, and achieve accurate, adjustable and automatic rotation times High degree of effect with high accuracy of results

Inactive Publication Date: 2012-07-18
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These optical methods all have some unavoidable shortcomings: The design of the optical method device requires extremely high precision, which is not conducive to production and processing; The theoretical algorithm of cylindrical expansion of optical panorami

Method used

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  • Linear array camera based automatic panoramic acquisition system for outer surface of cylindrical surface
  • Linear array camera based automatic panoramic acquisition system for outer surface of cylindrical surface
  • Linear array camera based automatic panoramic acquisition system for outer surface of cylindrical surface

Examples

Experimental program
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Example Embodiment

[0020] As shown in the figure, the cylindrical outer surface panoramic automatic acquisition system based on the line scan camera is composed of a shooting device 1, a fixing device 2, a rotating device 3 and a central controller 4.

[0021] The fixing device 2 includes a worktable 201, a large gear 202, a small gear 203, and a stepping motor 204. The large gear 202, the small gear 203 and the stepping motor 204 are arranged in the worktable 201, and the stepping motor 204 passes through a data line. Connect with the central controller 4, the large gear 202 meshes with the small gear 203, and the small gear 203 is connected with the motor shaft of the stepping motor 204;

[0022] The rotating device 3 includes a plate 301 and a three-jaw chuck 302. The three-jaw chuck 302 is fixed on the plate 301 by bolts. The plate 301 is connected to the large gear 202 through a transmission shaft 303. The cylindrical body 5 is arranged on the three-jaw chuck. 302 up;

[0023] The shooting device...

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Abstract

The invention discloses a linear array camera based automatic panoramic acquisition system for the outer surface of a cylindrical surface, which mainly comprises a cylinder centering and clamping device, a rotating device, a shooting device and a central controller. A programmed program is burnt into a central controller consisting of a singlechip and the like, and N cycles are performed, so that pictures on the periphery of the outer surface of the cylindrical surface can be acquired; and the acquired pictures are combined in an organic form, so that an accurate panoramic developed pattern of the outer surface of the cylindrical surface is obtained. According to the system, the problem of panoramic development of the outer surface of the cylindrical surface is solved; the system can be applied to scientific experimental study such as acquisition of the developed outer surface of a cylinder sleeve of an internal combustion engine, research on cavitation distribution of the surface and fingerprint investigation and evidence collection for the police; and moreover, the system has wide application prospects in the fields of education, entertainment and military.

Description

Technical field [0001] The invention belongs to the technical field of image acquisition of appearance contours, and relates to a panoramic system for automatically acquiring and expanding various cylindrical outer surfaces. Background technique [0002] Ordinary images often reflect the partial scene of the cylindrical body (the scene that the user sees from a certain perspective); correspondingly, the panoramic image can reflect the global expanded image of the cylindrical body, in order to study the accurate position and distribution of some traces on the cylindrical surface Laws require a higher-precision system for acquiring panoramic unfolding images of the cylindrical outer surface. [0003] At present, the main methods of collecting the cylindrical expansion map are: using optical principles, common ones include the cylindrical expansion of the catadioptric omnidirectional map, the cylindrical panoramic expansion method of the catadioptric omnidirectional map based on two-w...

Claims

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Application Information

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IPC IPC(8): G01B11/24
CPCG01N21/952
Inventor 银增辉李民杜慧勇刘建新石魁徐斌吴健王站成
Owner HENAN UNIV OF SCI & TECH
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