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

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...

AI Technical Summary

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 panoramic images takes up a lot of system resources, and the post-production calculation is very large

The principle of this method is relatively simple, but the collected images are not accurate enough, so it is not applicable in some occasions that require high precision

Images