CN108489610B - Instantaneous imaging system based on multi-channel defocus difference - Google Patents

Abstract

The multi-path defocusing difference-based instantaneous imaging system provided by the invention utilizes the beam splitting mirror group to split light, can instantaneously shoot enough image sequences under a plurality of known differences to serve as the requirements of image data reconstruction processing, uses the image sequences at a plurality of moments as input, and obtains a recovered clear image by utilizing a phase difference speckle algorithm.

Description

Instantaneous imaging system based on multi-channel defocus difference

technical field

The invention relates to an imaging system, in particular to an instantaneous imaging system based on multi-channel defocus differences.

Background technique

In the imaging optical path, the beam splitter is used to divide the beam into two paths, and two cameras are used to image the images respectively to form an image pair at one moment, and the image pairs at multiple moments are used as input, and then the phase difference speckle algorithm is used to obtain Clear image after restoration.

In practice, it is necessary to use image pairs taken at multiple times. At this time, if the observation target is a high-speed moving target and the posture changes drastically, the target posture at each moment is changing, that is, the ideal images corresponding to each moment are different. Then, these data cannot be fused and used at this time. Therefore, for this application scenario, sufficient image sequences must be shot instantaneously under multiple known differences as the needs of image data reconstruction processing.

SUMMARY OF THE INVENTION

In view of this, it is necessary to provide an instantaneous imaging system based on multi-channel defocus differences, aiming at solving the problem that sufficient image sequences cannot be captured in the instantaneous imaging system provided in the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

The instantaneous imaging system based on the multi-channel defocus difference provided by the present invention includes:

Including telescope, first beam splitter, second beam splitter, third beam splitter, fourth beam splitter, fifth beam splitter, sixth beam splitter, seventh beam splitter, first reflector, second reflector, third beam splitter mirror, fourth mirror, first imaging lens, second imaging lens, third imaging lens, fourth imaging lens, fifth imaging lens, sixth imaging lens, seventh imaging lens, eighth imaging lens, first A camera, a second camera, a third camera, a fourth camera, a fifth camera, a sixth camera, a seventh camera, an eighth camera and a computer, wherein:

The light beam emitted along the telescope passes through the first beam splitter to form a first reflected beam and a first transmitted beam, and the first transmitted beam passes through the second beam splitter to form a second reflected beam and a second transmitted beam, The second transmitted beam is passed through the third beam splitter to form a third transmitted beam and a third reflected beam, and the third transmitted beam is collected by the first camera after being focused by the first imaging lens to form a first beam. image;

The third reflected light beam is reflected by the first reflecting mirror and then enters the second imaging lens, and is collected by the second camera to form a second image after being focused by the second imaging lens;

The reflected beam formed by the second reflected beam after passing through the fourth beam splitter enters the third imaging lens, and is collected by the third camera to form a third image after being focused by the third imaging lens;

The transmitted light beam formed by the second reflected light beam after passing through the fourth beam splitter is reflected by the second reflecting mirror and then enters the fourth imaging lens, and is focused by the fourth imaging lens and then captured by the fourth imaging lens. The camera collects and forms a fourth image;

The reflected beam formed by the first reflected light beam after passing through the fifth beam splitter enters the sixth beam splitter, wherein the light beam transmitted by the sixth beam splitter enters the fifth imaging lens, and passes through the sixth beam splitter. After the fifth imaging lens is focused, it is captured by the fifth camera to form a fifth image;

The reflected beam formed by the first reflected beam after passing through the fifth beam splitter enters the sixth beam splitter, wherein the beam reflected by the sixth beam splitter enters the third reflector, and then passes through the sixth beam splitter. The third reflecting mirror enters the sixth imaging lens after being reflected, and is collected by the sixth camera to form a sixth image after being focused by the sixth imaging lens;

The transmitted light beam formed by the first reflected light beam after passing through the fifth beam splitter enters the seventh beam splitter, wherein the light beam reflected by the seventh beam splitter enters the seventh imaging lens, and passes through the seventh beam splitter. After the seventh imaging lens is focused, it is captured by the seventh camera to form a seventh image;

The transmitted light beam formed by the first reflected light beam after passing through the fifth beam splitter enters the seventh beam splitter, wherein the light beam transmitted through the seventh beam splitter enters the fourth reflector, and then passes through the seventh beam splitter. The fourth reflecting mirror enters the eighth imaging lens after being reflected, and is collected by the eighth camera to form an eighth image after being focused by the eighth imaging lens;

the computer acquires the first image, the second image, the third image, the fourth image, the fifth image, the sixth image, the seventh image, and the eighth image The first image, the second image, the third image, the fourth image, the fifth image, the sixth image, the seventh image The image and the eighth image are processed to obtain a high-definition image.

The present invention adopts the above-mentioned technical scheme, can realize the following beneficial effects:

The instantaneous imaging system based on the multi-channel defocus difference provided by the present invention utilizes a beam splitter group to perform light splitting, and can instantaneously capture enough image sequences under multiple known differences for the needs of image data reconstruction processing, and use The image sequence at multiple times is used as input, and the phase difference speckle algorithm is used to obtain a clear image after restoration.

Description of drawings

FIG. 1 is a schematic structural diagram of an instantaneous imaging system based on multi-channel defocus differences provided by an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Please refer to FIG. 1 , which is a schematic structural diagram 10 of an instantaneous imaging system based on multi-channel defocus differences provided by the present invention.

The instantaneous imaging system based on the multi-channel defocus difference includes: a telescope 110, a first beam splitter 120, a second beam splitter 130, a third beam splitter 140, a fourth beam splitter 150, a fifth beam splitter 160, and a sixth beam splitter Mirror 170, seventh beam splitter 180, first mirror 210, second mirror 220, third mirror 230, fourth mirror 240, first imaging lens 310, second imaging lens 320, third imaging lens 330 , fourth imaging lens 340, fifth imaging lens 350, sixth imaging lens 360, seventh imaging lens 370, eighth imaging lens 380, first camera 410, second camera 420, third camera 430, fourth camera 440 , a fifth camera 450, a sixth camera 460, a seventh camera 470, an eighth camera 480, and a computer (not shown).

The instantaneous imaging system 10 based on the multi-channel defocus difference provided by the embodiment of the present invention works as follows:

The light beam emitted along the telescope passes through the first beam splitter to form a first reflected beam and a first transmitted beam, and the first transmitted beam passes through the second beam splitter to form a second reflected beam and a second transmitted beam, The second transmitted beam is passed through the third beam splitter to form a third transmitted beam and a third reflected beam, and the third transmitted beam is collected by the first camera after being focused by the first imaging lens to form a first beam. image;

The third reflected light beam is reflected by the first reflecting mirror and then enters the second imaging lens, and is collected by the second camera to form a second image after being focused by the second imaging lens;

The reflected beam formed by the second reflected beam after passing through the fourth beam splitter enters the third imaging lens, and is collected by the third camera to form a third image after being focused by the third imaging lens;

The transmitted light beam formed by the second reflected light beam after passing through the fourth beam splitter is reflected by the second reflecting mirror and then enters the fourth imaging lens, and is focused by the fourth imaging lens and then captured by the fourth imaging lens. The camera collects and forms a fourth image;

The reflected beam formed by the first reflected light beam after passing through the fifth beam splitter enters the sixth beam splitter, wherein the light beam transmitted by the sixth beam splitter enters the fifth imaging lens, and passes through the sixth beam splitter. After the fifth imaging lens is focused, it is captured by the fifth camera to form a fifth image;

The reflected beam formed by the first reflected beam after passing through the fifth beam splitter enters the sixth beam splitter, wherein the beam reflected by the sixth beam splitter enters the third reflector, and then passes through the sixth beam splitter. The third reflecting mirror enters the sixth imaging lens after being reflected, and is collected by the sixth camera to form a sixth image after being focused by the sixth imaging lens;

The transmitted light beam formed by the first reflected light beam after passing through the fifth beam splitter enters the seventh beam splitter, wherein the light beam reflected by the seventh beam splitter enters the seventh imaging lens, and passes through the seventh beam splitter. After the seventh imaging lens is focused, it is captured by the seventh camera to form a seventh image;

The transmitted light beam formed by the first reflected light beam after passing through the fifth beam splitter enters the seventh beam splitter, wherein the light beam transmitted through the seventh beam splitter enters the fourth reflector, and then passes through the seventh beam splitter. The fourth reflecting mirror enters the eighth imaging lens after being reflected, and is collected by the eighth camera to form an eighth image after being focused by the eighth imaging lens;

the computer acquires the first image, the second image, the third image, the fourth image, the fifth image, the sixth image, the seventh image, and the eighth image The first image, the second image, the third image, the fourth image, the fifth image, the sixth image, the seventh image The image and the eighth image are processed to obtain a high-definition image.

It can be understood that if the observation target of the instantaneous imaging system is a high-speed moving target and the posture changes drastically, then the target posture at each moment is changing, that is, the ideal images corresponding to each moment are different, then these data cannot be used in fusion at this time; However, in the above-mentioned embodiment of the present invention, a beam splitter group is used for light splitting, and 8 different spectral band images are generated by 8 channels, which are the first image, the second image, the third image, the fourth image, the The fifth image, the sixth image, the seventh image, and the eighth image), so that enough image sequences can be captured instantaneously under multiple known differences to be processed as image data reconstruction It uses the image sequence of multiple moments as input, and then uses the phase difference speckle algorithm to obtain a clear image after restoration.

It can be understood that the above-mentioned embodiment provides that 8 different spectral segment images are generated from 8 channels, but the actual number of channels is not limited to 8, but can be adjusted according to the situation.

The instantaneous imaging system based on the multi-channel defocus difference provided by the present invention uses a beam splitter group to perform light splitting, and provides 8 different spectral band images generated by 8 channels and respectively generated by 8 cameras (the first camera 410, the second camera 410, the second camera 420, the third camera 430, the fourth camera 440, the fifth camera 450, the sixth camera 460, the seventh camera 470, and the eighth camera 480) at the same time, and then the computer will acquire the first image, the The second image, the third image, the fourth image, the fifth image, the sixth image, the seventh image, and the eighth image, so that it can be instantaneous at a number of known differences Shooting enough image sequences for the needs of image data reconstruction processing, and using the image sequences at multiple times as input, and then processing through the phase difference speckle algorithm, high-definition images can be obtained.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (1)

1. The utility model provides an instantaneous imaging system based on multichannel out of focus difference, its characterized in that, includes telescope, first spectroscope, second spectroscope, third spectroscope, fourth spectroscope, fifth spectroscope, sixth spectroscope, seventh spectroscope, first speculum, the second speculum, the third speculum, the fourth speculum, first imaging lens, second imaging lens, third imaging lens, fourth imaging lens, fifth imaging lens, sixth imaging lens, seventh imaging lens, eighth imaging lens, first camera, second camera, third camera, fourth camera, fifth camera, sixth camera, seventh camera, eighth camera and computer, wherein:

the light beam emitted along the telescope forms a first reflected light beam and a first transmitted light beam after passing through the first spectroscope, the first transmitted light beam forms a second reflected light beam and a second transmitted light beam after passing through the second spectroscope, the second transmitted light beam forms a third transmitted light beam and a third reflected light beam after passing through the third spectroscope, and the third transmitted light beam is focused by the first imaging lens and then collected by the first camera to form a first image;

the third reflected light beam is reflected by the first reflecting mirror, enters the second imaging lens, is focused by the second imaging lens and is collected by the second camera to form a second image;

the second reflected light beam is incident into the third imaging lens after passing through the fourth light splitting mirror, and is focused by the third imaging lens and collected by the third camera to form a third image;

the transmitted light beam formed by the second reflected light beam after passing through the fourth light splitting mirror enters the fourth imaging lens after being reflected by the second reflecting mirror, and is collected by the fourth camera after being focused by the fourth imaging lens to form a fourth image;

the first reflected light beam enters the sixth spectroscope through reflected light beam incidence formed by the fifth spectroscope, wherein the light beam transmitted by the sixth spectroscope enters the fifth imaging lens, is focused by the fifth imaging lens and then is collected by the fifth camera to form a fifth image;

the first reflected light beam enters the sixth spectroscope through the reflected light beam formed by the fifth spectroscope, enters the third reflector through the incident light beam reflected by the sixth spectroscope, enters the sixth imaging lens through the reflection of the third reflector, is focused by the sixth imaging lens, and is collected by the sixth camera to form a sixth image;

the first reflected light beam enters the seventh spectroscope through a transmission light beam formed by the fifth spectroscope, the light beam reflected by the seventh spectroscope enters the seventh imaging lens, and is focused by the seventh imaging lens and collected by the seventh camera to form a seventh image;

the first reflected light beam enters the seventh spectroscope through a transmission light beam formed by the fifth spectroscope, enters the fourth reflector through the transmission light beam transmitted by the seventh spectroscope, enters the eighth imaging lens through the reflection of the fourth reflector, is focused by the eighth imaging lens, and is collected by the eighth camera to form an eighth image;

the computer acquires the first image, the second image, the third image, the fourth image, the fifth image, the sixth image, the seventh image and the eighth image, and processes the first image, the second image, the third image, the fourth image, the fifth image, the sixth image, the seventh image and the eighth image through a phase difference speckle algorithm to obtain a high-definition image.

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