CN112819704A - High-definition image defogging system and defogging method - Google Patents
High-definition image defogging system and defogging method Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- H—ELECTRICITY
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30168—Image quality inspection
Abstract
The invention discloses a high-definition image defogging system and a defogging method, which comprise an image acquisition end, an image optimization end and an image comparison display end, wherein the image acquisition end is in communication connection with the image optimization end; the image optimization terminal is used for receiving the image data sent by the image acquisition terminal, optimizing and defogging the image according to the image defogging model, and sending the defogged clear image to the image contrast display terminal. When the error of the comparison result is larger than the preset value of the user, the invention sends a parameter adjustment request to the user, and the user inputs the parameter value of the defogging model again until the error value is smaller than the preset value of the user, thereby completing the defogging processing of the image.
Description
Technical Field
The invention relates to the technical field of image defogging, in particular to a high-definition image defogging system and a defogging method.
Background
With the continuous development of the automatic driving technology, the continuous improvement of the vehicle-mounted vision plays a crucial role in driving safety.
In the actual application scene, the vehicle can meet different weather conditions in going, often because weather reason makes visibility receive the influence of different degrees in the environment, for example rain, snow, produce more fog under the cloudy day easily, perhaps light is not enough, perhaps haze weather is that the air has been full of reasons such as a large amount of fine particles and causes visibility lower, will influence the discernment ability of self-driving vehicle to the road conditions, influences driving safety.
The prior art is not good to the image processing effect who has fog, haze etc. that acquires at the in-process of traveling, will influence the ability that the automated driving vehicle discerned the road conditions greatly, and then has influenced the driving safety of automated driving vehicle.
Therefore, in view of the above situation, there is a need to develop a high-definition image defogging system and a defogging method to overcome the shortcomings of the current practical application.
Disclosure of Invention
The present invention is directed to a high-definition image defogging system and a defogging method thereof to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a high definition image defogging system, includes image acquisition end, image optimization end and image contrast display end, image acquisition end and image optimization end communication connection, image optimization end and image contrast display end communication connection, wherein:
the image acquisition terminal is used for receiving an image acquisition instruction sent by a user, carrying out image shooting on a user-specified area and sending image data obtained by shooting to the image optimization terminal;
the image optimization terminal is used for receiving the image data sent by the image acquisition terminal, optimizing and defogging the image according to the image defogging model and sending the defogged clear image to the image contrast display terminal;
the image comparison display end is used for receiving a clear image sent by the image optimization end, and performing definition comparison on the clear image and the public image in the area to obtain a comparison result;
the image optimization system further comprises a sample database and a parameter configuration end, wherein the sample database and the parameter configuration end are both in communication connection with the image optimization end, the parameter configuration end is also in communication connection with the image comparison display end, and the image optimization system comprises:
the system comprises a sample database, a database server and a database server, wherein the sample database is used for collecting public image data containing image depth information in a user designated area and making an image data set based on image depth guidance;
the parameter configuration end is used for receiving the defogging model parameter values input by the user and inputting the parameter values into the image optimization end; and the device is used for receiving a comparison result sent by the image comparison display end, sending a parameter adjustment request to a user when the error of the comparison result is large, and inputting the parameter value of the defogging model again by the user.
As a further scheme of the invention: the image acquisition end is a camera shooting assembly and is used for shooting a foggy image of a real scene in a user-specified area.
As a further scheme of the invention: the image optimization end comprises a data receiving module, a data calling module, a defogging model module and a data output module, wherein the data receiving module and the data calling module are in communication connection with the defogging module, and the defogging model module is in communication connection with the data output module, wherein:
the data receiving module is used for receiving the image data sent by the image acquisition end and sending the image data to the defogging model module;
and the data calling module is used for receiving the data calling instruction sent by the defogging model module and calling the public image data and the parameter configuration data from the sample database and the parameter configuration end according to the data calling instruction.
As a further scheme of the invention: the data receiving module is in communication connection with the image acquisition end, and the data calling module is in communication connection with the sample database and the parameter configuration end respectively.
As a further scheme of the invention: the defogging model module adopts a defogging model as follows:
wherein J (x) is a recovered sharp image;
i (x) is a fog image obtained by shooting;
a and t (x) are configuration parameters, wherein:
a is the global atmospheric light value, and t (x) is the transmittance.
As a further scheme of the invention: when the atmosphere is uniform, the transmittance t (x) can be expressed as:
t(x)＝e-βd(x)
where d (x) is the scene depth.
As a further scheme of the invention: the image contrast display end comprises an image data receiving module, an image contrast module and a result output module, wherein the image data receiving module and the result output module are both in communication connection with the image contrast module, and the image contrast display end comprises:
the image data receiving module is used for receiving a clear image sent by the image optimizing end and sending the clear image to the image comparison module;
and the image comparison module is used for carrying out definition comparison on the clear image and the public image to obtain a comparison result, sending the comparison result to the result output module, and sending the comparison result to the parameter configuration end by the result output module.
A defogging method for a high-definition image comprises the following steps:
s1001, an image acquisition end receives an image acquisition instruction sent by a user, images of a region specified by the user are shot, and image data obtained through shooting are sent to an image optimization end;
s1002, the image optimizing end receives image data sent by the image obtaining end, optimizes and demists the image according to the image demisting model, and sends the demisted clear image to the image contrast display end;
s1003, the image comparison display end receives a clear image sent by the image optimization end, and carries out definition comparison on the clear image and the public image in the area to obtain a comparison result;
and S1004, the parameter configuration end receives the comparison result sent by the image comparison display end, and when the error of the comparison result is greater than the preset value of the user, a parameter adjustment request is sent to the user, and the user inputs the parameter value of the defogging model again.
Compared with the prior art, the invention has the beneficial effects that: the method comprises the steps that an image acquisition end receives an image acquisition instruction sent by a user, image shooting is carried out on a user-specified area, shot image data are sent to an image optimization end, the image is optimized and defogged through the image optimization end according to an image defogging model, a defogged clear image is sent to an image comparison display end, the clear image is compared with a public image of the area in a definition mode to obtain a comparison result, when the error of the comparison result is larger than a user preset value, a parameter adjustment request is sent to the user, the parameter value of the defogging model is input again by the user until the error value is smaller than the user preset value, and image defogging processing is finished.
Drawings
FIG. 1 is a block diagram of a high-definition image defogging system and a defogging method.
FIG. 2 is a block diagram of an image optimization terminal in the HDR image defogging system and the defogging method.
Fig. 3 is a block diagram of an image contrast display terminal in the high-definition image defogging system and the defogging method.
FIG. 4 is a block diagram of a high-definition image defogging method.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
Referring to fig. 1 to 3, in an embodiment of the present invention, a high-definition image defogging system includes an image acquisition end, an image optimization end and an image contrast display end, where the image acquisition end is in communication connection with the image optimization end, and the image optimization end is in communication connection with the image contrast display end, where:
the image acquisition terminal is used for receiving an image acquisition instruction sent by a user, carrying out image shooting on a user-specified area and sending image data obtained by shooting to the image optimization terminal;
the image optimization terminal is used for receiving the image data sent by the image acquisition terminal, optimizing and defogging the image according to the image defogging model and sending the defogged clear image to the image contrast display terminal;
the image comparison display end is used for receiving a clear image sent by the image optimization end, and performing definition comparison on the clear image and the public image in the area to obtain a comparison result;
the image optimization system further comprises a sample database and a parameter configuration end, wherein the sample database and the parameter configuration end are both in communication connection with the image optimization end, the parameter configuration end is also in communication connection with the image comparison display end, and the image optimization system comprises:
the system comprises a sample database, a database server and a database server, wherein the sample database is used for collecting public image data containing image depth information in a user designated area and making an image data set based on image depth guidance;
the parameter configuration end is used for receiving the defogging model parameter values input by the user and inputting the parameter values into the image optimization end; and the device is used for receiving a comparison result sent by the image comparison display end, sending a parameter adjustment request to a user when the error of the comparison result is large, and inputting the parameter value of the defogging model again by the user.
In an embodiment of the present invention, the image capturing end is a camera shooting component, and is configured to shoot a foggy image of a real scene in an area specified by a user.
In an embodiment of the present invention, the image optimization terminal includes a data receiving module, a data calling module, a defogging model module and a data output module, where the data receiving module and the data calling module are both in communication connection with the defogging module, and the defogging model module is in communication connection with the data output module, where:
the data receiving module is used for receiving the image data sent by the image acquisition end and sending the image data to the defogging model module;
the data calling module is used for receiving a data calling instruction sent by the defogging model module and calling the public image data and the parameter configuration data from the sample database and the parameter configuration end according to the data calling instruction;
it should be noted that, in the embodiment of the present invention, the public image data k (x) stored in the sample database is the clearest image data in each atmospheric environment in the area designated by the user, and is stored in the sample database as the public image data, and is used as the comparison standard of the clear image after defogging to determine the defogging effect of the image;
in an embodiment of the present invention, the data receiving module is in communication connection with the image obtaining terminal, and the data calling module is in communication connection with the sample database and the parameter configuration terminal, respectively.
In an embodiment of the present invention, the defogging model module adopts a defogging model that is:
wherein J (x) is a recovered sharp image;
i (x) is a fog image obtained by shooting;
a and t (x) are configuration parameters, wherein:
a is the global atmospheric light value, and t (x) is the transmittance.
In one embodiment of the present invention, when the atmosphere is uniform, the transmittance t (x) may be expressed as:
t(x)＝e-βd(x)
where d (x) is the scene depth.
In an embodiment of the present invention, the image contrast display end includes an image data receiving module, an image contrast module, and a result output module, and both the image data receiving module and the result output module are connected to the image contrast module in a communication manner, where:
the image data receiving module is used for receiving a clear image sent by the image optimizing end and sending the clear image to the image comparison module;
the image comparison module is used for performing definition comparison on the clear image and the public image, and can be understood as calculating a difference value between J (x) and K (x) to obtain a comparison result, sending the comparison result to the result output module, sending the comparison result to the parameter configuration end by the result output module, prompting a user to perform parameter reconfiguration by the parameter configuration end, and further performing defogging processing on the image until the difference value between J (x) and K (x) reaches a user preset value, wherein the user preset value is stored into the image comparison module in advance for the user.
A high-definition image defogging method comprises the following steps:
s1001, an image acquisition end receives an image acquisition instruction sent by a user, images of a region specified by the user are shot, and image data obtained through shooting are sent to an image optimization end;
s1002, the image optimizing end receives image data sent by the image obtaining end, optimizes and demists the image according to the image demisting model, and sends the demisted clear image to the image contrast display end;
s1003, the image comparison display end receives a clear image sent by the image optimization end, and carries out definition comparison on the clear image and the public image in the area to obtain a comparison result;
and S1004, the parameter configuration end receives the comparison result sent by the image comparison display end, and when the error of the comparison result is greater than the preset value of the user, a parameter adjustment request is sent to the user, and the user inputs the parameter value of the defogging model again.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (8)
1. The high-definition image defogging system is characterized by comprising an image acquisition end, an image optimization end and an image contrast display end, wherein the image acquisition end is in communication connection with the image optimization end, and the image optimization end is in communication connection with the image contrast display end, wherein:
the image acquisition terminal is used for receiving an image acquisition instruction sent by a user, carrying out image shooting on a user-specified area and sending image data obtained by shooting to the image optimization terminal;
the image optimization terminal is used for receiving the image data sent by the image acquisition terminal, optimizing and defogging the image according to the image defogging model and sending the defogged clear image to the image contrast display terminal;
the image comparison display end is used for receiving a clear image sent by the image optimization end, and performing definition comparison on the clear image and the public image in the area to obtain a comparison result;
the image optimization system further comprises a sample database and a parameter configuration end, wherein the sample database and the parameter configuration end are both in communication connection with the image optimization end, the parameter configuration end is also in communication connection with the image comparison display end, and the image optimization system comprises:
the system comprises a sample database, a database server and a database server, wherein the sample database is used for collecting public image data containing image depth information in a user designated area and making an image data set based on image depth guidance;
the parameter configuration end is used for receiving the defogging model parameter values input by the user and inputting the parameter values into the image optimization end; and the device is used for receiving a comparison result sent by the image comparison display end, sending a parameter adjustment request to a user when the error of the comparison result is large, and inputting the parameter value of the defogging model again by the user.
2. The system of claim 1, wherein the image capturing component is a camera capturing component for capturing a real scene fogging image of a user-specified area.
3. The high-definition image defogging system according to claim 1, wherein the image optimization terminal comprises a data receiving module, a data calling module, a defogging model module and a data output module, wherein the data receiving module and the data calling module are both in communication connection with the defogging module, and the defogging model module is in communication connection with the data output module, wherein:
the data receiving module is used for receiving the image data sent by the image acquisition end and sending the image data to the defogging model module;
and the data calling module is used for receiving the data calling instruction sent by the defogging model module and calling the public image data and the parameter configuration data from the sample database and the parameter configuration end according to the data calling instruction.
4. The system according to claim 3, wherein the data receiving module is communicatively connected to the image capturing end, and the data calling module is communicatively connected to the sample database and the parameter configuration end, respectively.
5. The high-definition image defogging system according to claim 4, wherein the defogging model module adopts a defogging model as follows:
wherein J (x) is a recovered sharp image;
i (x) is a fog image obtained by shooting;
a and t (x) are configuration parameters, wherein:
a is the global atmospheric light value, and t (x) is the transmittance.
6. The system of claim 5, wherein when the atmosphere is uniform, the transmittance t (x) is expressed as:
t(x)＝e-βd(x)
where d (x) is the scene depth.
7. The high-definition image defogging system according to claim 1, wherein the image contrast display end comprises an image data receiving module, an image contrast module and a result output module, the image data receiving module and the result output module are both in communication connection with the image contrast module, wherein:
the image data receiving module is used for receiving a clear image sent by the image optimizing end and sending the clear image to the image comparison module;
and the image comparison module is used for carrying out definition comparison on the clear image and the public image to obtain a comparison result, sending the comparison result to the result output module, and sending the comparison result to the parameter configuration end by the result output module.
8. A defogging method for a high definition image according to any one of claims 1 to 7, comprising the steps of:
s1001, an image acquisition end receives an image acquisition instruction sent by a user, images of a region specified by the user are shot, and image data obtained through shooting are sent to an image optimization end;
s1002, the image optimizing end receives image data sent by the image obtaining end, optimizes and demists the image according to the image demisting model, and sends the demisted clear image to the image contrast display end;
s1003, the image comparison display end receives a clear image sent by the image optimization end, and carries out definition comparison on the clear image and the public image in the area to obtain a comparison result;
and S1004, the parameter configuration end receives the comparison result sent by the image comparison display end, and when the error of the comparison result is greater than the preset value of the user, a parameter adjustment request is sent to the user, and the user inputs the parameter value of the defogging model again.
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