CN115098826A - Infrared radiation brightness calculation method for strong light interference - Google Patents
Infrared radiation brightness calculation method for strong light interference Download PDFInfo
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- CN115098826A CN115098826A CN202211015662.7A CN202211015662A CN115098826A CN 115098826 A CN115098826 A CN 115098826A CN 202211015662 A CN202211015662 A CN 202211015662A CN 115098826 A CN115098826 A CN 115098826A
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- G06F17/10—Complex mathematical operations
Abstract
The invention discloses a method for calculating infrared radiation brightness of strong light interference, which is characterized in that an infrared radiation total brightness calculation formula is obtained according to interference factors of the infrared radiation brightness, and when a strong light source exists, a value of a strong light direct component reaching a camera and a brightness component value of target reflection strong light are added, and the brightness calculation of the strong light direct component entering the camera and the brightness calculation of the target reflection strong light component are added, so that the calculation of the infrared radiation brightness of the strong light interference is realized.
Description
Technical Field
The invention relates to the field of infrared radiation brightness calculation, in particular to an infrared radiation brightness calculation method with strong light interference.
Background
The infrared radiation is an electromagnetic wave, is positioned at the outer end of visible light red light, radiates infrared energy at an object above absolute zero (-273 ℃), and is the basis of an infrared temperature measurement technology. The radiant emittance, radiant exitance, radiant intensity, radiant power and the like of infrared radiation are all related calculated quantities related to infrared radiation in physics. The infrared radiation brightness mainly comprises self radiation brightness, reflected sunlight radiation brightness, reflected sky background radiation brightness and reflected atmosphere heat radiation brightness, the infrared radiation brightness emitted by a target reaches the analog camera through atmospheric attenuation, and weather characteristics such as rain, snow, fog and the like need to be comprehensively considered in the atmospheric attenuation to calculate an attenuation value.
The existing infrared radiation brightness with strong light interference does not have a systematic calculation method, and the factors that the infrared radiation brightness is affected by the strong light interference are not considered in the calculation process, so that a large error exists in the infrared radiation brightness calculation process, and the calculation is not accurate, so that a strong light interference infrared radiation brightness calculation method is urgently needed to solve the technical problems.
Disclosure of Invention
The invention aims to provide a method for calculating the infrared radiation brightness under strong light interference, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for calculating the brightness of infrared radiation with strong light interference comprises the following steps:
the method comprises the following steps: according to the interference factors of the infrared radiation brightness, obtaining a calculation formula of the total infrared radiation brightness:
wherein the content of the first and second substances,
represents the total brightness of the infrared radiation;
representing the self thermal radiation brightness of the target;
represents the solar radiation brightness;
representing a sky light radiation brightness;
representing sky heat radiation brightness;
representing the brightness of the background light radiation and
representing the background heat radiation brightness;
representing the degree of attenuation of the radiant energy value by the atmosphere before it leaves the feature and enters the camera;
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
step two: when a strong light source exists, adding the value of the direct component of the strong light reaching the camera according to the formula in the step one
And the brightness component value of the reflected strong light of the object
；
When the observation direction of the camera is the position of the strong light, the formula is as follows:
wherein the content of the first and second substances,
is the atmosphereRadiance, representing a portion of the solar radiation that reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
a value representing the addition of the direct component of glare to the camera;
secondly, the step of: when the observation direction of the camera is the target position, the formula is as follows:
wherein the content of the first and second substances,
representing the self thermal radiation brightness of the target;
represents the solar radiation brightness;
representing a skylight radiation brightness;
representing sky heat radiation brightness;
representing the brightness of the background light radiation and
representing the background heat radiation brightness;
representing the degree of attenuation of the radiation energy value by the atmosphere before it leaves the ground object and enters the camera;
atmospheric radiance, which means that a part of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
value of brightness component representing strong light reflected by object
；
Step three: calculating the brightness of the direct light component of the strong light entering the camera;
setting the brightness of strong light interference as
The strong light, the strong light interference radiation directly transmits to the camera, reaches the radiance of camera after atmospheric attenuation, and the formula is as follows:
wherein the content of the first and second substances,
representing the atmospheric transmittance of the intense light source to the camera;
the luminance of the light representing the strong light interference;
step four: calculating the brightness of the target reflected strong light component;
setting strong light radiation
The radiation brightness value is expressed by the following formula:
wherein the content of the first and second substances,
indicating the atmospheric transmission rate of the intense light source to the target surface,
representing the target surface reflectivity;
indicating the luminance of strong light interference.
As a further scheme of the invention:
which represents the total brightness of the infrared radiation,
which represents the self-heat radiation brightness of the target,
which represents the brightness of the solar radiation,
which represents the brightness of the light radiation of the sky,
which represents the brightness of the heat radiation of the sky,
representing the brightness of the background light radiation and
indicating the background thermal radiation brightness.
As a still further scheme of the invention:
representing radiant energyThe degree of attenuation of the terrain by the atmosphere before it leaves the camera,
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere,
indicating the atmospheric thermal radiation brightness.
Compared with the prior art, the invention has the beneficial effects that:
according to the method, a calculation formula of the total infrared radiation brightness is obtained according to interference factors of the infrared radiation brightness, and when a strong light source exists, a value of a direct strong light component reaching a camera and a brightness component value of a target reflected strong light are added, and the brightness calculation of the direct strong light component entering the camera and the brightness calculation of the target reflected strong light component are added, so that the infrared radiation brightness of the strong light interference is calculated.
Detailed Description
The technical solutions of the present invention are further described in detail with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
A method for calculating the brightness of infrared radiation with strong light interference comprises the following steps:
the method comprises the following steps: according to the interference factors of the infrared radiation brightness, obtaining a calculation formula of the total infrared radiation brightness:
wherein the content of the first and second substances,
represents the total brightness of the infrared radiation;
representing the self thermal radiation brightness of the target;
represents the solar radiation brightness;
representing a sky light radiation brightness;
representing sky heat radiation brightness;
representing the brightness of the background light radiation and
representing the background heat radiation brightness;
representing the degree of attenuation of the radiant energy value by the atmosphere before it leaves the feature and enters the camera;
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
step two: when a strong light source exists, adding the value of the direct component of the strong light reaching the camera according to the formula in the step one
And the brightness component value of the reflected strong light of the object
；
The method comprises the following steps: when the observation direction of the camera is the position of the strong light, the formula is as follows:
wherein the content of the first and second substances,
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
a value representing the addition of a direct component of intense light to the camera;
secondly, the step of: when the observation direction of the camera is the target position, the formula is as follows:
wherein the content of the first and second substances,
representing the self thermal radiation brightness of the target;
represents the solar radiation brightness;
representing a sky light radiation brightness;
representing sky heat radiation brightness;
representing the brightness of the background light radiation and
representing the background heat radiation brightness;
representing the degree of attenuation of the radiant energy value by the atmosphere before it leaves the feature and enters the camera;
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
value of brightness component representing strong light reflected by object
；
Step three: calculating the brightness of the direct light component of the strong light entering the camera;
setting the brightness of strong light interference as
The strong light, the strong light interference radiation directly transmits to the camera, reaches the radiance of camera after atmospheric attenuation, and the formula is as follows:
wherein the content of the first and second substances,
representing the atmospheric transmittance of the intense light source to the camera;
the luminance of the light representing the strong light interference;
step four: calculating the brightness of the target reflected strong light component;
setting strong light radiation
The radiation brightness value is expressed by the following formula:
wherein the content of the first and second substances,
indicating the atmospheric transmission rate of the intense light source to the target surface,
representing the target surface reflectivity;
indicating the luminance of strong light interference.
Specifically, the following are: and obtaining an infrared radiation total brightness calculation formula according to interference factors of infrared radiation brightness, and adding a value of the direct strong light component reaching the camera and a brightness component value of the target reflected strong light, and calculating the brightness of the direct strong light component entering the camera and the brightness of the target reflected strong light component when the strong light source exists, so that the infrared radiation brightness calculation of the strong light interference can be realized through the steps.
Example two
A method for calculating the brightness of infrared radiation with strong light interference comprises the following steps:
the method comprises the following steps: according to the interference factors of the infrared radiation brightness, obtaining a calculation formula of the total infrared radiation brightness:
preferably, the first and second electrodes are, in this embodiment,
which represents the total brightness of the infrared radiation,
which represents the self-heat radiation brightness of the target,
which represents the brightness of the solar radiation,
which represents the brightness of the light radiation of the sky,
which represents the brightness of the heat radiation of the sky,
representing the brightness of the background light radiation and
indicating the background thermal radiation brightness.
Step two: when a strong light source exists, adding the value of the direct component of the strong light reaching the camera according to the formula in the step one
And the value of the brightness component of the object reflecting the strong light
；
The method comprises the following steps: when the observation direction of the camera is the position of the strong light, the formula is as follows:
secondly, the step of: when the observation direction of the camera is the target position, the formula is as follows:
step three: calculating the brightness of the direct light component of the strong light entering the camera;
setting the brightness of strong light interference as
The strong light, the strong light interference radiation is directly transmitted to the camera, and the radiation brightness of the camera is reached after atmospheric attenuation, and the formula is as follows:
step four: calculating the brightness of the target reflected strong light component;
setting strong light radiation
The radiation brightness value is expressed by the following formula:
Specifically, the following are: in the second embodiment, compared with the first embodiment, according to the interference factor of the infrared radiation brightness, the total infrared radiation brightness calculation formula is obtained, and when the strong light source exists, the value of the direct strong light component reaching the camera and the brightness component value of the target reflected strong light are added, and the brightness calculation of the direct strong light component entering the camera and the brightness calculation of the target reflected strong light component are added.
EXAMPLE III
A method for calculating infrared radiation brightness of strong light interference comprises the following steps:
the method comprises the following steps: according to the interference factors of the infrared radiation brightness, obtaining a calculation formula of the total infrared radiation brightness:
preferably, in the present embodiment,
which represents the total brightness of the infrared radiation,
which represents the self-heat radiation brightness of the target,
which represents the brightness of the solar radiation,
which represents the brightness of the light radiation of the sky,
which represents the brightness of the heat radiation of the sky,
representing the brightness of the background light radiation and
indicating the background thermal radiation brightness.
Preferably, in this embodiment, the watch
Indicating the degree to which the radiant energy value is attenuated by the atmosphere before it leaves the feature and enters the camera,
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere,
indicating the atmospheric thermal radiation brightness.
Step two: when a strong light source exists, adding the value of the direct component of the strong light reaching the camera according to the formula in the step one
And the value of the brightness component of the object reflecting the strong light
；
The method comprises the following steps: when the observation direction of the camera is the position of the strong light, the formula is as follows:
secondly, the step of: when the observation direction of the camera is the target position, the formula is as follows:
step three: calculating the brightness of the direct light component of the strong light entering the camera;
setting the brightness of strong light interference as
The light-emitting diode has the advantages of strong light,the strong light interference radiation is directly transmitted to the camera, and reaches the radiation brightness of the camera after being attenuated by the atmosphere, and the formula is as follows:
step four: calculating the brightness of the target reflected strong light component;
setting strong light radiation
The radiation brightness value is expressed by the following formula:
Specifically, the following are: according to the interference factors of the infrared radiation brightness, an infrared radiation total brightness calculation formula is obtained, and when a strong light source exists, a value of a direct strong light component reaching the camera and a brightness component value of a target reflection strong light are added, and the brightness calculation of the direct strong light component entering the camera and the brightness calculation of the target reflection strong light component are added, so that the infrared radiation brightness calculation of the strong light interference is realized.
In addition, in the calculation process of the infrared radiation brightness interfered by the strong light, a plurality of factors which can interfere and influence the calculation of the infrared radiation brightness are considered, so that the factors are considered more comprehensively in the calculation, a more accurate calculation result is obtained, and the calculation error of the infrared radiation brightness interfered by the strong light is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (1)
1. A method for calculating infrared radiation brightness of strong light interference is characterized by comprising the following steps:
the method comprises the following steps: according to the interference factors of the infrared radiation brightness, obtaining a calculation formula of the total infrared radiation brightness:
wherein, the first and the second end of the pipe are connected with each other,
represents the total brightness of the infrared radiation;
representing the self thermal radiation brightness of the target;
represents the solar radiation brightness;
representing a sky light radiation brightness;
representing sky heat radiation brightness;
representing the brightness of the background light radiation and
representing the background heat radiation brightness;
representing the degree of attenuation of the radiant energy value by the atmosphere before it leaves the feature and enters the camera;
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
step two: when a strong light source exists, adding the value of the direct component of the strong light reaching the camera according to the formula in the step one
And the brightness component value of the reflected strong light of the object
；
The method comprises the following steps: when the observation direction of the camera is the position of the strong light, the formula is as follows:
wherein the content of the first and second substances,
atmospheric radiance, meaning that a portion of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
a value representing the addition of a direct component of intense light to the camera;
secondly, the step of: when the observation direction of the camera is the target position, the formula is as follows:
wherein the content of the first and second substances,
representing the self thermal radiation brightness of the target;
represents the solar radiation brightness;
representing a sky light radiation brightness;
representing sky heat radiation brightness;
representing the brightness of the background light radiation and
representing the background heat radiation brightness;
representing the degree of attenuation of the radiant energy value by the atmosphere before it leaves the feature and enters the camera;
atmospheric radiance, which means that a part of the solar radiation reaches the camera after being scattered by the atmosphere;
representing the atmospheric thermal radiation brightness;
value of brightness component representing strong light reflected by object
；
Step three: calculating the brightness of the direct light component of the strong light entering the camera;
setting the brightness of strong light interference as
The strong light, the strong light interference radiation is directly transmitted to the camera, and the radiation brightness of the camera is reached after atmospheric attenuation, and the formula is as follows:
wherein the content of the first and second substances,
representing the atmospheric transmittance of the intense light source to the camera;
the luminance of the light representing the strong light interference;
step four: calculating the brightness of the target reflected strong light component;
setting strong light radiation
The radiation brightness value is expressed by the following formula:
wherein the content of the first and second substances,
indicating the atmospheric transmission rate of the intense light source to the target surface,
representing the target surface reflectivity;
indicating the luminance of strong light interference.
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