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Method for designing compression imaging system based on coded aperture lens array

A technology of aperture lens and compression imaging, applied in the parts of TV system, image communication, color TV, etc., can solve the problems of large workload of projection matrix calibration and long imaging time, and reduce the sampling frequency and data. Storage and transfer costs, high-resolution compressed imaging, ease of processing and inspection effects

Inactive Publication Date: 2013-01-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0006] The present invention aims to overcome the problems of long imaging time and heavy workload of projection matrix calibration in the existing compressed imaging system

Method used

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  • Method for designing compression imaging system based on coded aperture lens array
  • Method for designing compression imaging system based on coded aperture lens array
  • Method for designing compression imaging system based on coded aperture lens array

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with specific implementation examples. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0042] The invention according to figure 1 The structure shown is implemented, and its details are as follows figure 1 As shown, the system consists of a field stop array 1 , a coded aperture template array 2 , a sub-aperture spliced ​​lens array 3 , a coded sampling template array 4 and a detector image plane array 5 .

[0043] Such as figure 1 As shown, a subsystem B in the scene is taken as an example for illustration. The scene light of subsystem B first passes through the corresponding sub-field diaphragm, which can effectively allow the scene light of area B to pass through, and block the light of the adjacent scene area from passing through, so as to achieve equalization of the entire sce...

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Abstract

The invention discloses a method for designing a compression imaging system based on a coded aperture lens array. The compression imaging system comprises a field stop array, a coded aperture template array, a sub-aperture splicing lens array, a coded sampling template array and a detector image surface array, wherein the field stop array partitions a large scene; the coded aperture template array performs spatial light modulation on rays from a scene target; the modulated rays are converged by the sub-aperture splicing lens array; the converged rays are spatially sampled by the coded sampling template array which is positioned at the front end of a focal plane; and the detector image surface array is used for compression imaging. The compression imaging system based on the coded aperture lens array can synchronously compress and sample the target scene, the sampling frequency of an image signal and data storage and transmission cost can be greatly reduced, a storage space required by a measurement matrix can be greatly reduced by partitioning and imaging the large scene through the sub-aperture splicing lens array, and the calibration working amount of an optical system is greatly reduced.

Description

technical field [0001] The invention relates to a design method of a compressed imaging system based on a coded aperture lens array, and a high-resolution imaging system applicable to different spectral bands belongs to the field of optical imaging. Background technique [0002] With the continuous increase of people's demand for image information, the signal bandwidth carrying image information is getting wider and wider. The image signal processing framework based on the Nyquist sampling theorem will inevitably require the sampling rate and processing speed of the imaging system to increase day by day. Higher resolution, denser sampling, acquisition and transmission of massive image signals make traditional imaging systems face huge challenges both in terms of hardware and algorithms. In order to deal with this problem, in the actual application process, people often add DSP to the sensor, and use the compression mechanism to reduce the cost of data storage, processing an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225G02B26/00
CPCH04N23/95
Inventor 陈靖吴含笑
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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