Multi-lens detector array curved image surface splicing method

Abstract

The invention relates to a multi-lens detector array curved image surface splicing method and belongs to the large-field-of-view digital imaging technical field. The objective of the invention is to solve problems of complex operation, high cost and difficult post-stage processing existing in the prior art. According to the technical scheme of the invention, a plurality of sets of imaging lenses of which the image surfaces are curved surfaces acquire images through detector arrays on the respective curved image surfaces of the imaging lenses; the plurality of sets of detector arrays are staggered at directions which are different from the directions of respective optical axes of the imaging lenses, so that a plurality of sets of staggered and complementary reticular images can be formed; the reticular images are spliced to each other so as to from a seamless large-field-of-view image; and the layout of the detector arrays is calculated through adopting a curved surface point distribution mathematical topology method and according to the surface types of the curved image surfaces of the imaging lenses, so that topologic arrangement of the plurality of detector arrays can be mutually staggered, and the boundaries of the detector arrays are overlapped with each other. With the multi-lens detector array curved image surface splicing method of the invention adopted, curvature-of-field correction operation can be omitted, and the complexity of the imaging lenses can be reduced, and system processing cost can be reduced, and the complexity of later-stage image splicing processing can be simplified, and a lot of computational processing steps can be omitted.

Description

technical field [0001] The invention belongs to the technical field of large-field digital imaging, and in particular relates to a multi-lens detector array curved surface image surface splicing method. Background technique [0002] For aerial reconnaissance cameras that have received much attention in recent years, single-chip detectors are difficult to meet the comprehensive index requirements of large field of view and high resolution for aerial reconnaissance. The limited size of the detector has become the bottleneck of large field of view and high-resolution imaging systems. With the development of detector splicing technology, the limitation of single detector size on the imaging field of view has been effectively solved. However, for the imaging optical system with large field of view and high pixels, when the image plane is a plane, the correction of field curvature is very difficult. The key to system design is that the lens structure with better field curvature co...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a multi-lens detector array curved surface image surface splicing method to solve the problems of complex operation, high cost and difficult post-processing existing in the prior art

Images