Optical and digital combined design method of digital imaging system

A digital imaging system and design method technology, applied in optics, optical components, instruments, etc., can solve problems affecting imaging clarity, long development cycle, high cost, etc.

Active Publication Date: 2015-04-29
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional design method makes the quality of the optical system design the only link that determines the image quality. In order to "perfectly" correct the aberration, the optical lens usually needs to be composed of multiple lenses, and the curvature of the lens may also be aspherical, which leads to lens processing, assembly, etc. It is extremely difficult to adjust and detect, which makes the imaging system large in size and weight, long in development cycle, and high in cost
However, no matter how many lenses there are and how complex the curvature is, it is far less than the number of various order abe

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical and digital combined design method of digital imaging system
  • Optical and digital combined design method of digital imaging system
  • Optical and digital combined design method of digital imaging system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0073] The technical key point of the present invention is: by analyzing the degree of difficulty of using digital processing to compensate for chromatic aberration, defocus, distortion, astigmatism, coma, curvature of field, and spherical aberration, the degree of difficulty of imaging definition loss caused by digital processing can be eliminated. The aberrations that are easy to be compensated by digital processing are corrected by image processing algorithms, and the digital aberrations are realized by modeling the prior information of imaging targets, optical imaging systems, digital processing systems, and joint design performance indicators. The optical / digital joint design of the imaging system relaxes the strict restrictions on the optical system, reduces the complexity of the optical system, and at the same time achieves the global optimization of optical design and digital processing.

[0074] Such as image 3 As shown, the specific implementation steps of the optic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an optical and digital combined design method of a digital imaging system. The method comprises the steps that by analyzing the difficulty degree of digitally processing imaging definition losses caused by compensation of chromatic aberration, out-of-focus, distortion, astigmatism, coma, curvature of the field and spherical aberration, aberration difficult to compensate for through digital processing is corrected through optical design, and aberration easy to compensate for through digital processing is corrected through an image processing algorithm; optical and digital combined iterative optimization design of the digital imaging system is achieved by modeling imaging target prior information, an optical imaging system, a digital processing system and combined design performance indexes. In this way, strict restriction on the optical system is relaxed, the complexity of the optical system is lowered, and global optimization of optical design and digital processing is achieved.

Description

technical field [0001] The invention relates to an optical and digital joint design method of a digital imaging system. Background technique [0002] With the rapid development of electronic technology and material technology, the imaging system has been developed from silver halide film imaging to digital imaging. Now the traditional digital imaging system is mainly composed of optical system and detector system. The target is imaged on the CCD or A digital image is formed on the COMS detector, and people then use image processing algorithms to correct the digital image more or less according to the application requirements, and digital image processing is not a necessary part of the traditional digital imaging system. In a certain sense, the characteristics of the so-called "digital" imaging have been lost, and all the advantages of digital imaging have not been fully excavated. [0003] The traditional digital imaging system design method is mainly divided into two steps...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B27/00
CPCG02B27/0012
Inventor 相里斌张金刚谭政方煜吕群波杜述松付强孙建颖白杨丛林骁
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products