CN112525833A - Multispectral cultural relic imaging device and method based on low-light detector - Google Patents
Multispectral cultural relic imaging device and method based on low-light detector Download PDFInfo
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Abstract
The invention provides a multispectral cultural relic imaging device and method based on a low-light detector, wherein the system comprises: the system comprises a laser irradiation system, a low-light-level camera, a multi-band data synthesis system and a multi-spectral image synthesis subsystem, wherein the low-light-level camera is electrically connected with the laser irradiation system; the color image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser of different wave bands to generate a color image which accords with the vision of human eyes and sends the color image to the cultural relic exhibition appreciation system; the cultural relic identification system is used for receiving the multispectral image of the cultural relic for researchers to realize the identification of the cultural relic; the cultural relic exhibition and appreciation system is used for receiving the cultural relic color image for people to visit and appreciate. On the premise of ensuring the safety of the cultural relics, the identification and appreciation of the cultural relics can be freely realized.
Description
Technical Field
The invention relates to the technical field of photoelectric information, in particular to a multispectral cultural relic imaging device and method based on a micro-light detector.
Background
In order to avoid the problem that strong light may damage antiques, calligraphy and painting and the like, the cultural relics are generally not allowed to be photographed, and the problem that the cultural relics are damaged due to overhigh intensity of a camera flash lamp or laser emission intensity of a spectrum camera is avoided. Therefore, many important cultural relics are stored in a closed manner under dark conditions, and the cultural relics need to be displayed and identified in many occasions, for example, people need to take pictures for the purpose of commenting, researchers need to take pictures for researching or identifying the cultural relics from the optical field, and the like. Therefore, on the premise of ensuring the safety of the cultural relics, the cultural relics can be freely identified and appreciated, and the method is very necessary.
Disclosure of Invention
The invention provides a multispectral cultural relic imaging device and method based on a low-light detector, which mainly solve the technical problems that: on the premise of ensuring the safety of the cultural relics, the identification and appreciation of the cultural relics can be freely realized.
In order to solve the technical problem, the invention provides a multispectral cultural relic imaging device based on a micro-light detector, which is applied to cultural relic identification and appreciation and comprises the following components:
the laser irradiation system consists of a laser, a lens and a control drive circuit; the laser covers a wave band range of 380-1100 nm, and controls the laser to set an energy value and set a wave band to emit laser by controlling the driving circuit, so that the intensity of the laser irradiated on the cultural relic is lower than a cultural relic damage threshold;
the micro-light camera is electrically connected with the laser irradiation system and is used for respectively collecting at least one spectral image under the laser irradiation conditions of different wave bands;
the multiband data synthesis system is electrically connected with the micro-light camera and comprises a multispectral image synthesis subsystem and a color image synthesis subsystem, wherein the multispectral image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser with different wave bands to generate a multispectral image and sending the multispectral image to the cultural relic identification system; the color image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser with different wave bands to generate a color image which accords with the vision of human eyes and sends the color image to the cultural relic exhibition appreciation system;
the cultural relic identification system is electrically connected with the multiband data synthesis system and is used for receiving multispectral images of the cultural relic for researchers to realize the identification of the cultural relic;
and the cultural relic display appreciation system is electrically connected with the multiband data synthesis system and is used for receiving the cultural relic color image for people to visit and appreciate.
Optionally, the lasers comprise at least two groups, each group for covering a wavelength range in the range of 380 to 1100nm, and only one group of lasers is allowed to emit laser light at a time.
The invention also provides a low-light-level imaging method of the multispectral cultural relic imaging device based on the low-light-level detector, which is applied to cultural relic identification and appreciation and comprises the following steps:
emitting laser with set energy value and wave band to make the laser intensity lower than damage threshold;
at least one spectral image is collected under the condition of laser irradiation of different wave bands;
synthesizing a plurality of spectral images under the irradiation of laser with different wave bands to generate a multispectral image, and sending the multispectral image to a cultural relic identification system for researchers to realize the identification of the cultural relic;
and synthesizing the plurality of spectral images under the irradiation of the laser with different wave bands to generate a color image which accords with the vision of human eyes and sends the color image to a cultural relic exhibition and appreciation system for people to enjoy and appreciate.
The invention has the beneficial effects that:
according to the multispectral cultural relic imaging device and method based on the micro-optical detector provided by the invention, the system comprises: the laser irradiation system consists of a laser, a lens and a control drive circuit; the laser covers a wave band range of 380-1100 nm, and controls the laser to set an energy value and set a wave band to emit laser by controlling the driving circuit, so that the intensity of the laser irradiated on the cultural relic is lower than a cultural relic damage threshold; the low-light-level camera is electrically connected with the laser irradiation system and is used for respectively collecting at least one spectral image under the laser irradiation conditions of different wave bands; the multi-band data synthesis system is electrically connected with the micro-light camera and comprises a multi-spectral image synthesis subsystem and a color image synthesis subsystem, wherein the multi-spectral image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser light of different bands to generate a multi-spectral image and sending the multi-spectral image to the cultural relic identification system; the color image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser of different wave bands to generate a color image which accords with the vision of human eyes and sends the color image to the cultural relic exhibition appreciation system; the cultural relic identification system is electrically connected with the multiband data synthesis system and is used for receiving multispectral images of the cultural relic for researchers to realize the identification of the cultural relic; the cultural relic exhibition and appreciation system is electrically connected with the multiband data synthesis system and is used for receiving the cultural relic color image for people to visit and appreciate. On the premise of ensuring the safety of the cultural relics, the identification and appreciation of the cultural relics can be freely realized.
Drawings
Fig. 1 is a schematic structural diagram of a multispectral cultural relic imaging device based on a micro-optical detector according to a first embodiment of the invention;
fig. 2 is a schematic structural diagram of a multispectral cultural relic imaging system based on a micro-optical detector according to a first embodiment of the invention;
fig. 3 is a schematic flow chart of a low-light-level imaging method according to a second embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following detailed description and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
the embodiment provides a multispectral cultural relic imaging device based on a micro-light detector, please refer to fig. 1-2, the system is applied to cultural relic identification and appreciation, and mainly comprises a laser irradiation system 10, a micro-light camera 20, a multiband data synthesis system 30, a cultural relic identification system 40 and a cultural relic display and appreciation system 50; wherein
The laser irradiation system 10 is composed of a laser 11, a lens 12 and a control drive circuit 13; the at least two groups of lasers 11 cover a wave band range of 380-1100 nm, and the lasers 11 are controlled by the control driving circuit 13 to set energy values and set wave bands to emit laser, so that the intensity of the laser irradiating the cultural relic is lower than a cultural relic damage threshold; the laser irradiation system can be a laser, the wave band range of laser emission each time is adjusted through an optical filter, and 380-1100 nm wave band range coverage is realized through multiple emission; the laser irradiation system may also be composed of a plurality of lasers, each of which emits laser light of a fixed wavelength band, thereby achieving coverage of a wavelength band of 380 to 1100 nm. For example, the laser irradiation system includes 8 sets of lasers, a first set of lasers for emitting laser light in a 380 to 435nm band, a second set of lasers for emitting laser light in a 435 to 450nm band, a third set of lasers for emitting laser light in a 450 to 492nm band, a fourth set of lasers for emitting laser light in a 492 to 577nm band, a fifth set of lasers for emitting laser light in a 577 to 597nm band, a sixth set of lasers for emitting laser light in a 597 to 622nm band, a seventh set of lasers for emitting laser light in a 622 to 760nm band, and an eighth set of lasers for emitting laser light in a 760 to 1100nm band.
The micro-light camera 20 is electrically connected with the laser irradiation system 10 and is used for respectively collecting at least one spectral image under the laser irradiation conditions of different wave bands;
the multiband data synthesis system 30 is electrically connected with the micro-light camera 20 and comprises a multispectral image synthesis subsystem 31 and a color image synthesis subsystem 32, wherein the multispectral image synthesis subsystem 31 is used for synthesizing a plurality of spectral images under the irradiation of laser light of different wave bands to generate a multispectral image and sending the multispectral image to the cultural relic identification system 40; the color image synthesis subsystem 32 is used for synthesizing a plurality of spectral images under the irradiation of laser light of different wave bands to generate a color image according with the vision of human eyes and sending the color image to the cultural relic exhibition and appreciation system 50;
the cultural relic identification system 40 is electrically connected with the multiband data synthesis system 30 and is used for receiving multispectral images of the cultural relic for researchers to realize the identification of the cultural relic;
the cultural relic exhibition and appreciation system 50 is electrically connected with the multiband data synthesis system 30 and is used for receiving the cultural relic color image for people to visit and appreciate. For example an electronic LED large screen.
The low-light camera 20 has a low response illumination (typically 10)-3~10-4Lux) and large light-entering quantity, can realize image acquisition under the dark condition, and improve the imaging definition.
It should be understood that, the existing correlation synthesis algorithm may be used for the multispectral image and color image synthesis technology based on a plurality of spectral images, and this embodiment is not limited thereto.
In order to provide a more real viewing effect, a 3D stereoscopic effect is provided based on a binocular vision principle, specifically, the two low-light level cameras 20 are spaced at a certain distance to simulate the two eyes of a human, cultural relic images are collected from two directions, the multi-band data synthesis system 30 respectively processes the multi-spectral images collected by the two low-light level cameras 20, a left-eye color image and a right-eye color image are synthesized and respectively sent to the left-eye display module and the right-eye display module, an experiencer wears a helmet or intelligent glasses, so that the left-eye color image can only be seen by the left eye of the experiencer, and the right-eye color image can only be seen by the right eye of the experiencer, thereby realizing the separation of the.
The multispectral cultural relic imaging device based on the low-light detector comprises a laser irradiation system, a laser device, a lens and a control driving circuit, wherein the laser irradiation system consists of a laser device, a lens and a control driving circuit; the laser covers a wave band range of 380-1100 nm, and controls the laser to set an energy value and set a wave band to emit laser by controlling the driving circuit, so that the intensity of the laser irradiated on the cultural relic is lower than a cultural relic damage threshold; the low-light-level camera is electrically connected with the laser irradiation system and is used for respectively collecting at least one spectral image under the laser irradiation conditions of different wave bands; the multi-band data synthesis system is electrically connected with the micro-light camera and comprises a multi-spectral image synthesis subsystem and a color image synthesis subsystem, wherein the multi-spectral image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser light of different bands to generate a multi-spectral image and sending the multi-spectral image to the cultural relic identification system; the color image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser of different wave bands to generate a color image which accords with the vision of human eyes and sends the color image to the cultural relic exhibition appreciation system; the cultural relic identification system is electrically connected with the multiband data synthesis system and is used for receiving multispectral images of the cultural relic for researchers to realize the identification of the cultural relic; the cultural relic exhibition and appreciation system is electrically connected with the multiband data synthesis system and is used for receiving the cultural relic color image for people to visit and appreciate. On the premise of ensuring the safety of the cultural relics, the identification and appreciation of the cultural relics can be freely realized.
Example two:
in this embodiment, on the basis of the first embodiment, a low-light-level imaging method based on the multispectral cultural relic imaging device based on the low-light-level detector is provided, please refer to fig. 3, and the method mainly includes the following steps:
s301, emitting laser with set energy value and wave band to enable the intensity of the laser irradiated on the cultural relic to be lower than the cultural relic damage threshold;
s302, at least one spectral image is collected under the condition of laser irradiation of different wave bands;
s303, synthesizing a plurality of spectral images under the irradiation of laser of different wave bands to generate a multispectral image;
s304, sending the multispectral image to a cultural relic identification system for researchers to realize cultural relic identification;
s305, synthesizing a plurality of spectral images under the irradiation of laser of different wave bands to generate a color image conforming to the vision of human eyes;
and S306, sending the color image to a cultural relic display appreciation system for people to enjoy and appreciate.
The glimmer imaging method of the multispectral cultural relic imaging device based on the glimmer detector can freely realize identification and appreciation of the cultural relic on the premise of ensuring the safety of the cultural relic.
It will be apparent to those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be centralized on a single computing device or distributed across a network of computing devices, and optionally they may be implemented in program code executable by a computing device, such that they may be stored on a computer storage medium (ROM/RAM, magnetic disks, optical disks) and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (3)
1. A multispectral historical relic image device based on little photodetector, characterized by, be applied to historical relic appraisal and appreciation, include:
the laser irradiation system consists of a laser, a lens and a control drive circuit; the laser covers a wave band range of 380-1100 nm, and controls the laser to set an energy value and set a wave band to emit laser by controlling the driving circuit, so that the intensity of the laser irradiated on the cultural relic is lower than a cultural relic damage threshold;
the micro-light camera is electrically connected with the laser irradiation system and is used for respectively collecting at least one spectral image under the laser irradiation conditions of different wave bands;
the multiband data synthesis system is electrically connected with the micro-light camera and comprises a multispectral image synthesis subsystem and a color image synthesis subsystem, wherein the multispectral image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser with different wave bands to generate a multispectral image and sending the multispectral image to the cultural relic identification system; the color image synthesis subsystem is used for synthesizing a plurality of spectral images under the irradiation of laser with different wave bands to generate a color image which accords with the vision of human eyes and sends the color image to the cultural relic exhibition appreciation system;
the cultural relic identification system is electrically connected with the multiband data synthesis system and is used for receiving multispectral images of the cultural relic for researchers to realize the identification of the cultural relic;
and the cultural relic display appreciation system is electrically connected with the multiband data synthesis system and is used for receiving the cultural relic color image for people to visit and appreciate.
2. The micro-photodetector based multi-spectral cultural relic imaging apparatus of claim 1, wherein said lasers comprise at least two sets, each set for covering a wavelength band range within a range of 380 to 1100nm, only one set of lasers being allowed to emit laser light at a time.
3. A method for low-light imaging of a multispectral cultural relic imaging device based on a low-light detector as claimed in claim 1 or 2, which is applied to cultural relic identification appreciation, comprising:
emitting laser with set energy value and wave band to make the laser intensity lower than damage threshold;
at least one spectral image is collected under the condition of laser irradiation of different wave bands;
synthesizing a plurality of spectral images under the irradiation of laser with different wave bands to generate a multispectral image, and sending the multispectral image to a cultural relic identification system for researchers to realize the identification of the cultural relic;
and synthesizing the plurality of spectral images under the irradiation of the laser with different wave bands to generate a color image which accords with the vision of human eyes and sends the color image to a cultural relic exhibition and appreciation system for people to enjoy and appreciate.
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