CN113489972A - Method and device for testing picture brightness consistency - Google Patents
Method and device for testing picture brightness consistency Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The embodiment of the application provides a method and a device for testing the consistency of picture brightness, wherein the method comprises the following steps: acquiring a panoramic view of a panoramic looking-around system, wherein the panoramic looking-around system is arranged on a vehicle; picture brightness in the panoramic view is determined. By applying the technical scheme provided by the embodiment of the application, the situation of the brightness consistency of the picture in the panoramic view is objectively described.
Description
Technical Field
The present application relates to the field of image processing technologies, and in particular, to a method and an apparatus for testing brightness uniformity of a picture.
Background
The panoramic all-round looking technology is that images collected by a plurality of cameras are spliced to obtain a panoramic view, and the panoramic view can naturally display the conditions around a vehicle. The panoramic all-round looking system based on the panoramic all-round looking technology comprises a front-looking camera, a rear-looking camera, a side-looking camera and the like. The picture brightness consistency of the panoramic view is an important index of the imaging quality of the panoramic all-round looking system.
However, in the related art, only the test evaluation of the brightness balance of the adjacent images is performed, and the test evaluation of the brightness consistency of the picture in the panoramic view acquired by the panoramic all-around system under the installation of the whole vehicle is not involved, so that the brightness consistency of the picture in the panoramic view cannot be objectively described.
Disclosure of Invention
The embodiment of the application aims to provide a method and a device for testing the brightness consistency of a picture, so as to objectively describe the brightness consistency of the picture in a panoramic view. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a method for testing brightness uniformity of a picture, where the method includes:
acquiring a panoramic view of a panoramic looking-around system, wherein the panoramic looking-around system is arranged on a vehicle;
determining a picture brightness in the panoramic view.
Optionally, the vehicle is located in a scene with uniform illumination; the step of determining the brightness of the picture in the panoramic view comprises:
and taking the maximum brightness value and the minimum brightness value of the area except the vehicle in the panoramic view.
Optionally, the step of taking the maximum brightness value and the minimum brightness value of the area in the panoramic view except for the vehicle includes:
partitioning the panoramic view into a plurality of cells;
calculating brightness values of all cells except the vehicle in the panoramic view;
the luminance value of the cell with the largest luminance value is taken as the maximum luminance value, and the luminance value of the cell with the smallest luminance value is taken as the minimum luminance value.
Optionally, when the ratio of the brightness difference to the maximum brightness value does not exceed a preset ratio, the consistency of the picture brightness meets the requirement, where the brightness difference is the difference between the maximum brightness value and the minimum brightness value; and/or the presence of a gas in the gas,
and when the brightness difference value does not exceed a first preset difference value, the consistency of the picture brightness meets the requirement.
Optionally, the length of each unit is a preset length, and the width of each unit is a preset width.
Optionally, the ambient illuminance of the scene where the vehicle is located is a preset illuminance, and a light source is turned on one side of the vehicle body of the vehicle;
the step of determining the brightness of the picture in the panoramic view comprises:
and taking a first brightness value at the light side and a second brightness value at the backlight side in the panoramic view.
Optionally, when a difference between the first luminance value and the second luminance value at a joint of the light-directing side and the backlight side does not exceed a second preset difference, the uniformity of the picture luminance meets a requirement; and/or the presence of a gas in the gas,
when the color cast does not occur on the picture of the panoramic view, the consistency of the picture brightness meets the requirement.
Optionally, the light sources at the front, left, right and rear single sides of the vehicle are respectively turned on.
In a second aspect, an embodiment of the present application provides an apparatus for testing brightness uniformity of a picture, where the apparatus includes:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a panoramic view of a panoramic all-around system, and the panoramic all-around system is arranged on a vehicle;
a determination module to determine a picture brightness in the panoramic view.
Optionally, the vehicle is located in a scene with uniform illumination;
the determining module is specifically configured to obtain a maximum brightness value and a minimum brightness value of an area in the panoramic view except for the vehicle.
Optionally, the determining module is specifically configured to:
partitioning the panoramic view into a plurality of cells;
calculating brightness values of all cells except the vehicle in the panoramic view;
the luminance value of the cell with the largest luminance value is taken as the maximum luminance value, and the luminance value of the cell with the smallest luminance value is taken as the minimum luminance value.
Optionally, when the ratio of the brightness difference to the maximum brightness value does not exceed a preset ratio, the consistency of the picture brightness meets the requirement, where the brightness difference is the difference between the maximum brightness value and the minimum brightness value; and/or the presence of a gas in the gas,
and when the brightness difference value does not exceed a first preset difference value, the consistency of the picture brightness meets the requirement.
Optionally, the length of each unit is a preset length, and the width of each unit is a preset width.
Optionally, the ambient illuminance of the scene where the vehicle is located is a preset illuminance, and a light source is turned on one side of the vehicle body of the vehicle;
the determining module is specifically configured to obtain a first brightness value of a light-facing side and a second brightness value of a backlight side in the panoramic view.
Optionally, when a difference between the first luminance value and the second luminance value at a joint of the light-directing side and the backlight side does not exceed a second preset difference, the uniformity of the picture luminance meets a requirement; and/or the presence of a gas in the gas,
when the color cast does not occur on the picture of the panoramic view, the consistency of the picture brightness meets the requirement.
Optionally, the light sources at the front, left, right and rear single sides of the vehicle are respectively turned on.
In a third aspect, embodiments provide an electronic device comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: the method for testing the brightness consistency of the picture is realized.
In a fourth aspect, an embodiment of the present application provides a machine-readable storage medium, where a computer program is stored in the machine-readable storage medium, and when the computer program is executed by a processor, the method for testing the brightness uniformity of a picture is implemented as any one of the above-mentioned methods.
In a fifth aspect, the present application provides a computer program, which when running on a computer, causes the computer to execute any one of the above-mentioned methods for testing the uniformity of the brightness of a picture.
The embodiment of the application has the following beneficial effects:
in the technical scheme provided by the embodiment of the application, the panoramic all-around system is installed on the vehicle, and the panoramic all-around system installed on the vehicle acquires the panoramic view. And acquiring a panoramic view of the panoramic all-round looking system under the installation of the whole vehicle, and determining the picture brightness in the panoramic view. And moreover, the situation of picture brightness consistency in the panoramic view can be objectively described.
Of course, not all advantages described above need to be achieved at the same time in the practice of any one product or method of the present application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
Fig. 1 is a schematic view of a field of view of a vehicle-mounted camera according to an embodiment of the present disclosure;
fig. 2 is a first flowchart illustrating a method for testing brightness uniformity of a picture according to an embodiment of the present disclosure;
fig. 3 is a second flowchart illustrating a method for testing brightness uniformity according to an embodiment of the present disclosure;
fig. 4 is a third flowchart illustrating a method for testing brightness uniformity according to an embodiment of the present disclosure;
FIG. 5 is a diagram illustrating a partition of an image unit according to an embodiment of the present disclosure;
FIG. 6 is a diagram of an image unit according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of a panoramic view provided by embodiments of the present application;
fig. 8 is a fourth flowchart illustrating a method for testing brightness uniformity according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of an apparatus for testing uniformity of brightness of a picture according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the description herein are intended to be within the scope of the present disclosure.
For convenience of understanding, words appearing in the embodiments of the present application are explained below.
Panoramic View Monitor system (AVM): the driving assistance system is composed of an Electronic Control Unit (ECU) and an environment perception sensor such as a camera. The panoramic all-around viewing system can process the acquired environmental information around the vehicle body at the same moment into a real-time panoramic aerial view of overlooking the periphery of the vehicle body at a certain point in the air, and the real-time panoramic aerial view is displayed on a vehicle screen. The real-time panoramic aerial view can be called a panoramic view of the panoramic looking-around system.
In the embodiment of the present application, the number of cameras included in the panoramic all-round viewing system may be 4, 6, 8, and the like, and is not limited specifically. The following description will be given taking an example in which the panoramic looking-around system includes 4 cameras. The panoramic all-round looking system comprises 4 cameras which are divided into a front-view camera, a rear-view camera, a left-view camera and a right-view camera. The 4 regions shown in fig. 1 are the viewing ranges of the 4 cameras, respectively, where a region a1 is the viewing range of the front-view camera, a region a2 is the viewing range of the rear-view camera, a region a3 is the viewing range of the left-view camera, and a region a4 is the viewing range of the right-view camera.
In order to objectively describe the situation of the picture brightness consistency of the panoramic view, the embodiment of the application provides a test method of the picture brightness consistency. The method for testing the picture brightness consistency can be used for testing the picture brightness consistency of the panoramic view of the panoramic all-round looking system installed on various vehicles. The vehicle provided with the panoramic all-round viewing system can be various motor vehicles such as passenger cars, trucks, saloon cars and the like, and further can be motor vehicles such as M1, M2, M3, N1, N2, N3, O and the like. Wherein, M1, M2, M3, N1, N2, N3 and O all represent vehicle types.
The following describes in detail the method for testing the uniformity of the brightness of the screen provided in the embodiments of the present application with specific embodiments.
Referring to fig. 2, fig. 2 is a first flowchart of a method for testing brightness uniformity of a picture according to an embodiment of the present disclosure. The method can be applied to a panoramic looking-around system, namely, the ECU included in the panoramic looking-around system executes a method for testing the brightness consistency of the picture. The method may also be applied to an electronic device connected to a panoramic surround view system. For ease of understanding, the following description will be made with respect to an electronic device as an implementation subject, and is not intended to be limiting. The method for testing the brightness consistency of the picture comprises the following steps:
step S21, acquiring a panoramic view of a panoramic all-round system, wherein the panoramic all-round system is installed on a vehicle;
in step S22, the brightness of the picture in the panoramic view is determined.
In the technical scheme provided by the embodiment of the application, the panoramic all-around system is installed on the vehicle, and the panoramic all-around system installed on the vehicle acquires the panoramic view. And acquiring a panoramic view of the panoramic all-round looking system under the installation of the whole vehicle, and determining the picture brightness in the panoramic view. And moreover, the situation of picture brightness consistency in the panoramic view can be objectively described.
In the above step S21, the panoramic looking-around system is mounted on the vehicle. After the panoramic all-round looking system is calibrated, the panoramic view collected by the panoramic all-round looking system can be used for testing the consistency of the brightness of the picture.
And the vehicle provided with the calibrated panoramic all-around system is parked in a test field, and the panoramic all-around system is started. The panoramic all-round looking system comprises cameras for collecting images respectively. For the convenience of distinction, the images acquired by the cameras are referred to as single-view images. And the panoramic all-around viewing system splices the single-view views to obtain a panoramic view, and sends the panoramic view to the electronic equipment. At this point, the electronic device obtains a panoramic view of the panoramic looking-around system.
In step S22, after the electronic device acquires the panoramic view, the electronic device may analyze the picture brightness of the panoramic view to obtain the picture brightness in the panoramic view.
In the embodiment of the present application, the analysis algorithm for the picture brightness includes, but is not limited to, a convolutional neural network algorithm, a Support Vector Machine (SVM) algorithm, and the like, and is not specifically limited thereto.
In an embodiment of the present application, based on fig. 2, a method for testing brightness uniformity of a picture is further provided in the embodiment of the present application, as shown in fig. 3. In the method, the vehicle is positioned in a scene with uniform illumination. The scenario here can be understood as the test site described above. In this case, step S22 may be subdivided into the following steps.
And step S221, taking the maximum brightness value and the minimum brightness value of the area except the vehicle in the panoramic view.
In a scene with uniform illumination, the maximum brightness value L of the electronic equipment is in an area except for the vehicle in the panoramic viewmaxAnd a minimum luminance value Lmin. Based on LmaxAnd LminIt can be effectively determined whether the actual illumination in the scene is uniform. Therefore, the situation of the brightness consistency of the picture in the panoramic view can be objectively described.
In an embodiment of the present application, based on fig. 3, a method for testing brightness uniformity of a picture is further provided in the embodiment of the present application, as shown in fig. 4. In this method, step S221 may be subdivided into the following steps.
Step S221a, the panoramic view is divided into cells.
In the embodiment of the application, in order to improve the test accuracy of the brightness consistency of the picture, the electronic device may divide the panoramic view into a plurality of units. As shown in fig. 5. In fig. 5, each small rectangular area is a cell. And the unit in the panoramic view is the minimum unit for carrying out the brightness consistency test of the picture. The plurality of cells may be the same size or different sizes.
In one embodiment, the length of each cell in the panoramic view is a preset length, and the width of each cell in the panoramic view is a preset width. The size of the preset length and the preset width can be set according to actual requirements. The preset length and the preset width may be the same or different.
For example, as shown in fig. 6, the preset length and the preset width are both 10 pixels. That is, each cell in the panoramic view is a 10 pixel by 10 pixel cell.
In step S221b, the brightness values of all the cells in the panoramic view except the vehicle are calculated.
After obtaining the plurality of cells, the electronic device may perform screen brightness calculation on each of the plurality of cells except for the vehicle in the panoramic view to obtain a brightness value of each cell. For example, as shown in the panoramic view of fig. 7, the electronic device calculates the luminance values of all the cells in fig. 7 except for the vehicle.
The luminance value of the cell may be an average value of luminance values of each pixel in the cell, a maximum luminance value of the luminance values of each pixel in the cell, or a minimum luminance value of the luminance values of each pixel in the cell. This is not limitative.
In the embodiment of the present application, the electronic device may also perform picture brightness calculation on all cells in the panoramic view to obtain brightness values of all the cells. The electronic apparatus takes out the luminance values of all the units except the vehicle from the luminance values of all the units. This is not limitative.
In step S221c, the luminance value of the cell with the largest luminance value is taken as the maximum luminance value, and the luminance value of the cell with the smallest luminance value is taken as the minimum luminance value.
The electronic device obtains the brightness values of all the units except the vehicle, and then takes the brightness value of the unit with the largest brightness value as the maximum brightness value Lmax(ii) a The luminance value of the cell with the smallest luminance value is taken as the minimum luminance value Lmin。
In the embodiment of the application, the electronic equipment excludes the unit where the vehicle is located, and only the units except the vehicle are subjected to the picture brightness calculation, so that the number of the units for performing the picture brightness calculation is reduced, and the test efficiency of the picture brightness consistency is improved.
In addition, the electronic equipment divides the panoramic view into a plurality of units, and the units are used as the minimum units for calculating the brightness of the picture, so that the test accuracy of the consistency of the brightness of the picture can be improved.
In one embodiment of the application, the electronic device may further calculate a brightness value of each pixel point in the panoramic view except for the vehicle. And taking the brightness value of the pixel point with the maximum brightness value as the maximum brightness value and the brightness value of the pixel point with the minimum brightness value as the minimum brightness value by the electronic equipment from the calculated brightness values.
In the embodiment of the application, the electronic device may also determine the maximum brightness value L in other mannersmaxAnd a minimum luminance value LminThis is not limitative.
In one embodiment of the present application, the maximum luminance value L is usedmaxAnd a minimum luminance value LminThe difference value of (d) is taken as the luminance difference value. When the brightness difference value is equal to the maximum brightness value LmaxWhen the ratio of (A) is not more than the preset ratio, the uniformity of the image brightness meets the requirement.
Specifically, the electronic device calculates the maximum luminance value LmaxAnd a minimum luminance value LminAs a luminance difference value, and the luminance difference value and the maximum luminance value LmaxThe specific expression of the ratio t is as follows:
where t represents an evaluation parameter for uniformity of screen brightness, and LmaxRepresents the maximum brightness value, LminRepresents the minimum brightness value (L)max-Lmin) Representing the luminance difference.
When t is smaller than or equal to the preset ratio, the electronic equipment can determine that the consistency of the picture brightness of the panoramic view meets the requirement. When t is greater than the preset ratio, the electronic device may determine that the uniformity of the picture brightness of the panoramic view is not satisfactory.
The preset ratio may be set according to actual requirements, for example, the preset ratio may be 20%, 25%, or 30%.
In one embodiment of the present application, the maximum luminance value L is usedmaxAnd a minimum luminance value LminThe difference value of (d) is taken as the luminance difference value. When the brightness difference value does not exceed the first preset difference value, drawingThe uniformity of the surface brightness meets the requirement.
Specifically, the electronic device calculates the maximum luminance value LmaxAnd a minimum luminance value LminThe difference value of (2) as a luminance difference value. When the brightness difference value is smaller than or equal to the first preset difference value, the electronic equipment can determine that the consistency of the picture brightness of the panoramic view meets the requirement. When the brightness difference value is larger than the first preset difference value, the electronic equipment can determine that the consistency of the picture brightness of the panoramic view is not satisfactory.
In the embodiment of the application, the electronic device does not need to calculate the ratio t, so that the testing efficiency of the picture brightness consistency is improved.
In the embodiment of the present application, other manners may also be adopted to determine whether the uniformity of the picture brightness meets the requirement. For example, the electronic device calculates the maximum luminance value LmaxAnd a minimum luminance value LminAs a luminance difference value, and the luminance difference value and the minimum luminance value LmaxThe specific expression is as follows:
wherein t' represents an evaluation parameter of uniformity of screen brightness, LmaxRepresents the maximum brightness value, LminRepresents the minimum brightness value (L)max-Lmin) Representing the luminance difference.
When t' is less than or equal to a preset threshold, the electronic device can determine that the consistency of the picture brightness of the panoramic view meets the requirement. When t' is lower than a preset threshold, the electronic device may determine that the consistency of the brightness of the panoramic view is not satisfactory.
The preset threshold may be set according to actual requirements, for example, the preset ratio may be 30%, 35%, or 40%.
In an embodiment of the present application, based on fig. 2, a method for testing brightness uniformity of a picture is further provided in the embodiment of the present application, as shown in fig. 8. According to the method, the ambient illumination of a scene where the vehicle is located is the preset illumination, and the light source is turned on one side of the vehicle body of the vehicle.
Wherein, the light source is opened to the automobile body unilateral can understand: the light source is turned on at the far end and the light source irradiates in the direction of the vehicle from the far end. The predetermined illumination may be (2 ± 0.2) lux (lx) or (3 ± 0.2) lx. Specifically, the preset illumination intensity can be set according to actual requirements, and only a dark scene is ensured.
In this case, step S22 may be subdivided into the following steps.
In step S222, a first luminance value at the light side and a second luminance value at the backlight side in the panoramic view are taken.
In a scene with preset illumination, the electronic equipment takes a first brightness value of a light-facing side in the panoramic view and a second brightness value of a backlight side in the panoramic view. The transition condition between the light side and the backlight side of the scene can be effectively determined based on the first brightness value and the second brightness value, and the condition of the brightness consistency of the pictures in the panoramic view can be objectively described.
In this embodiment of the application, the forward, reverse, and lateral single-sided light sources of the vehicle may be respectively turned on, and then the electronic device respectively executes the step S222 in the forward, reverse, and lateral single-sided lighting scenes of the vehicle, so as to objectively describe the situation of the brightness consistency of the image in the panoramic view.
The forward direction of the vehicle is the front of the vehicle, the reverse direction of the vehicle is the rear of the vehicle, and the lateral direction of the vehicle comprises the left side and the right side of the vehicle.
In one embodiment of the present application, when a difference between a first luminance value and a second luminance value at a junction of a light-facing side and a backlight side does not exceed a second preset difference, the uniformity of the picture luminance is satisfactory.
Specifically, the electronic device calculates a difference between a first luminance value and a second luminance value at a junction of the light-oriented side and the backlight side. If the difference value between the first brightness value and the second brightness value is less than or equal to a second preset difference value, the electronic equipment can determine that the consistency of the image brightness meets the requirement. If the difference value between the first brightness value and the second brightness value is larger than a second preset difference value, the electronic equipment can determine that the consistency of the picture brightness does not meet the requirement.
In the embodiment of the application, the second preset difference value can be set according to actual requirements. For example, the second preset difference value may be 15%, 20%, 25%, etc.
In an alternative embodiment, the electronic device may split the panoramic view into a plurality of cells. In the direction from the light-facing side to the backlight side, the electronic device performs a picture luminance calculation for each cell, determining a luminance value for each cell. In the direction from the light-facing side to the backlight side, if the difference value of the brightness values of every two adjacent units is less than or equal to a second preset difference value, the electronic equipment can determine that the consistency of the picture brightness meets the requirement; otherwise, determining that the consistency of the picture brightness does not meet the requirement.
In one embodiment of the present application, when no color cast occurs in a picture of a panoramic view, the uniformity of the brightness of the picture is satisfactory. If the color cast of the picture of the panoramic view occurs, the consistency of the picture brightness does not meet the requirement.
In the embodiment of the application, the forward, reverse and lateral single-side light sources of the vehicle can be respectively started to achieve the brightness consistency of the pictures in the panoramic view. In the scene of forward, reverse and lateral one-sided illumination of the vehicle, the brightness of the junction of the light emitting area and the backlight area should be naturally transited, and sudden brightness change or color cast should not occur. The light-directing region is a region on the light-directing side, and the backlight region is a region on the backlight side.
That is, the single-side light sources are respectively turned on at the front, left, right, and rear of the vehicle, and under the irradiation of the single-side light sources, when the difference values of the luminance values of the light-facing side and the backlight side are all less than or equal to a second preset difference value, and the color cast does not occur in the picture of the panoramic view, the electronic device may determine that the consistency of the picture luminance meets the requirement.
In the embodiment of the application, the electronic device can comprehensively consider the above factors when testing the uniformity of the brightness of the picture. That is, if the ratio of the luminance difference value to the maximum luminance value does not exceed the preset ratio, the luminance difference value does not exceed the first preset difference value, the difference value of the first luminance value and the second luminance value does not exceed the second preset difference value, and the color cast does not occur in the picture of the panoramic view, the consistency of the picture luminance meets the requirement. Otherwise, the consistency of the picture brightness does not meet the requirement.
In the embodiment of the application, when testing the uniformity of the screen brightness, the electronic equipment only considers one or more factors of the factors. For example, if the ratio of the luminance difference value to the maximum luminance value does not exceed the preset ratio, or the luminance difference value does not exceed the first preset difference value, or the difference value between the first luminance value and the second luminance value does not exceed the second preset difference value, or the color cast does not occur in the picture of the panoramic view, the uniformity of the picture luminance is satisfactory. Otherwise, the consistency of the picture brightness does not meet the requirement.
The embodiments of the present application do not limit this.
In an embodiment of the application, if the consistency of the picture brightness does not meet the requirement, the electronic device may output an alarm message to prompt the user that the panoramic view does not meet the consistency requirement of the picture brightness, so that the user can adjust and repair the panoramic all-around system in time, and further improve the safety factor of the vehicle.
The following describes a method for testing the uniformity of the screen brightness provided in the embodiments of the present application with reference to the following flow.
The panoramic all-round system adopts the mode that laboratory bench test and real car closed field test combine together to test:
a1) the test of view switching, fault detection, vehicle body camera image quality and panoramic all-round looking system time performance (such as system starting time, system delay, view switching delay, output display frame rate and the like) is mainly performed by laboratory bench test;
a2) static auxiliary lines, dynamic trajectory lines, the visual range of the panoramic all-round viewing system, the picture symmetry and the panoramic splicing effect are mainly static tests of a real vehicle closed field;
a3) the blind area monitoring of a driver is carried out in a mode of dynamic test or video injection of a real vehicle closed site, and the test environment condition, the target object and the test measurement system of the dynamic test respectively meet the requirements of 6.1, 6.2 and 6.3 in GB/T39265-2020.
In the embodiment of the application, when the brightness consistency of the picture is tested, a real vehicle static test field is adopted, namely, the static test of the real vehicle closed field is taken as a main part. The real vehicle static test site meets the following basic requirements:
b1) within the nominal visual range of the panoramic all-round system, the ground flatness deviation is measured by using a 2m guiding rule to be less than 5 mm;
b2) the ground of the test site is made of neutral gray or matte material with black gray;
b3) in a normal illumination scene test, the illumination in a test field is uniform, and the illumination deviation of each place is not more than 10%;
wherein, normal illumination can be understood as: illumination with illumination intensity exceeding the preset normal illumination intensity. The preset normal illumination can be set according to actual requirements. For example, the preset normal illuminance may be an illuminance at time 10:00, 12:00, or 15:00 on a sunny day.
b4) In the low-illumination scene test, the illumination in the test field is controlled within (2 +/-0.2) lx.
Based on the real vehicle static test field meeting the basic requirements, the picture brightness consistency test is carried out:
c1) and driving the vehicle into the real vehicle static test site meeting the basic requirements, and starting the panoramic view.
c2) And importing the panoramic view into image analysis software, dividing the panoramic view into a plurality of units by taking 10 × 10 pixels as a minimum unit, and calculating brightness values of all the units except the vehicle in the panoramic view.
c3) Taking the brightness value L of the maximum brightness unit in the panoramic viewmaxLuminance value L of minimum luminance unitminAnd calculating the brightness difference of the two.
Wherein, the brightness difference should meet the following requirements: in a scene with uniform illumination, the brightness of each area around the vehicle is kept consistent, and no area is too bright or too dark; the difference in brightness between the brightest and darkest locations in the picture of the panoramic view is no more than 20%.
c4) The ambient illumination in the test field was reduced to (2 ± 0.2) lx.
c5) And respectively starting single-side light sources at the front, the left side, the right side and the rear of the vehicle, respectively introducing the panoramic views irradiated by the single-side light into image analysis software, and analyzing the brightness of the images towards the light side and the backlight side in the images of the panoramic views.
The brightness of the picture at the light side and the backlight side should meet the following requirements: in the scene of forward, reverse and lateral unilateral illumination, the brightness of the junction of the light emitting region and the backlight region should be naturally transited, and sudden brightness change or color cast should not occur.
Corresponding to the above method for testing the uniformity of the screen brightness, an embodiment of the present application further provides a device for testing the uniformity of the screen brightness, as shown in fig. 9, the device includes:
an obtaining module 91, configured to obtain a panoramic view of a panoramic looking-around system, where the panoramic looking-around system is installed on a vehicle;
a determining module 92 for determining the brightness of the picture in the panoramic view.
In one embodiment of the present application, the vehicle is located in a uniformly illuminated scene;
the determining module 92 may be specifically configured to take a maximum brightness value and a minimum brightness value of an area other than the vehicle in the panoramic view.
In an embodiment of the present application, the determining module 92 may be specifically configured to:
partitioning the panoramic view into a plurality of cells;
calculating brightness values of all cells except the vehicle in the panoramic view;
the luminance value of the cell with the largest luminance value is taken as the maximum luminance value, and the luminance value of the cell with the smallest luminance value is taken as the minimum luminance value.
In an embodiment of the present application, when a ratio of a luminance difference value to a maximum luminance value does not exceed a preset ratio, the uniformity of the picture luminance meets a requirement, wherein the luminance difference value is a difference value between the maximum luminance value and a minimum luminance value; and/or the presence of a gas in the gas,
when the brightness difference value does not exceed the first preset difference value, the consistency of the picture brightness meets the requirement.
In one embodiment of the present application, the length of each cell is a predetermined length and the width of each cell is a predetermined width.
In one embodiment of the application, the ambient illumination of a scene where a vehicle is located is a preset illumination, and a light source is turned on one side of a vehicle body of the vehicle;
the determining module 92 may be specifically configured to obtain a first luminance value of the light-facing side and a second luminance value of the backlight side in the panoramic view.
In one embodiment of the application, when the difference value between the first brightness value and the second brightness value at the joint of the light-facing side and the backlight side does not exceed a second preset difference value, the consistency of the picture brightness meets the requirement; and/or the presence of a gas in the gas,
when the color cast does not occur in the picture of the panoramic view, the consistency of the brightness of the picture meets the requirement.
In the technical scheme provided by the embodiment of the application, the panoramic all-around system is installed on the vehicle, and the panoramic all-around system installed on the vehicle acquires the panoramic view. And acquiring a panoramic view of the panoramic all-round looking system under the installation of the whole vehicle, and determining the picture brightness in the panoramic view. And moreover, the situation of picture brightness consistency in the panoramic view can be objectively described.
Corresponding to the above method for testing the brightness consistency of the picture, an embodiment of the present application further provides an electronic device, as shown in fig. 10, including a processor 101 and a machine-readable storage medium 102, where the machine-readable storage medium 102 stores machine-executable instructions capable of being executed by the processor 101, and the processor 101 is caused by the machine-executable instructions to: and realizing the steps of the test method for the brightness consistency of any picture.
The machine-readable storage medium may include Random Access Memory (RAM) and may also include Non-Volatile Memory (NVM), such as at least one disk Memory. Alternatively, the machine-readable storage medium may be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), etc.; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In another embodiment provided by the present application, a machine-readable storage medium is further provided, in which a computer program is stored, and when the computer program is executed by a processor, the method for testing the brightness uniformity of any one of the above-mentioned pictures is implemented.
In another embodiment provided by the present application, there is also provided a computer program, which when run on a computer, causes the computer to perform any of the above-mentioned steps of the method for testing the brightness uniformity of a picture.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus, the electronic device, the machine-readable storage medium, and the computer program embodiment, since they are substantially similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (18)
1. A method for testing the brightness consistency of a picture is characterized by comprising the following steps:
acquiring a panoramic view of a panoramic looking-around system, wherein the panoramic looking-around system is arranged on a vehicle;
determining a picture brightness in the panoramic view.
2. The method of claim 1, wherein the vehicle is located in a uniformly illuminated scene; the step of determining the brightness of the picture in the panoramic view comprises:
and taking the maximum brightness value and the minimum brightness value of the area except the vehicle in the panoramic view.
3. The method of claim 2, wherein said step of taking a maximum brightness value and a minimum brightness value for an area of said panoramic view other than said vehicle comprises:
partitioning the panoramic view into a plurality of cells;
calculating brightness values of all cells except the vehicle in the panoramic view;
the luminance value of the cell with the largest luminance value is taken as the maximum luminance value, and the luminance value of the cell with the smallest luminance value is taken as the minimum luminance value.
4. The method according to claim 2 or 3, wherein the uniformity of the frame brightness is satisfied when the ratio of the brightness difference value to the maximum brightness value does not exceed a preset ratio, wherein the brightness difference value is the difference value between the maximum brightness value and the minimum brightness value; and/or the presence of a gas in the gas,
and when the brightness difference value does not exceed a first preset difference value, the consistency of the picture brightness meets the requirement.
5. The method of claim 3, wherein the length of each of the cells is a predetermined length and the width of each of the cells is a predetermined width.
6. The method according to claim 1, wherein the ambient illumination of the scene where the vehicle is located is a preset illumination, and a light source is turned on one side of the body of the vehicle;
the step of determining the brightness of the picture in the panoramic view comprises:
and taking a first brightness value at the light side and a second brightness value at the backlight side in the panoramic view.
7. The method according to claim 6, wherein when the difference between the first brightness value and the second brightness value at the junction of the light-facing side and the backlight side does not exceed a second preset difference, the uniformity of the picture brightness is satisfactory; and/or the presence of a gas in the gas,
when the color cast does not occur on the picture of the panoramic view, the consistency of the picture brightness meets the requirement.
8. The method of claim 6 or 7, wherein the light sources of the front, left, right and rear single sides of the vehicle are turned on, respectively.
9. A device for testing the brightness consistency of a picture, which is characterized by comprising:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a panoramic view of a panoramic all-around system, and the panoramic all-around system is arranged on a vehicle;
a determination module to determine a picture brightness in the panoramic view.
10. The apparatus of claim 9, wherein the vehicle is located in a uniformly illuminated scene;
the determining module is specifically configured to obtain a maximum brightness value and a minimum brightness value of an area in the panoramic view except for the vehicle.
11. The apparatus of claim 10, wherein the determining module is specifically configured to:
partitioning the panoramic view into a plurality of cells;
calculating brightness values of all cells except the vehicle in the panoramic view;
the luminance value of the cell with the largest luminance value is taken as the maximum luminance value, and the luminance value of the cell with the smallest luminance value is taken as the minimum luminance value.
12. The apparatus according to claim 10 or 11, wherein the uniformity of the frame brightness is satisfied when a ratio of a brightness difference value to the maximum brightness value does not exceed a preset ratio, wherein the brightness difference value is a difference value between the maximum brightness value and the minimum brightness value; and/or the presence of a gas in the gas,
and when the brightness difference value does not exceed a first preset difference value, the consistency of the picture brightness meets the requirement.
13. The apparatus of claim 11, wherein the length of each of the cells is a predetermined length and the width of each of the cells is a predetermined width.
14. The device of claim 9, wherein the ambient illumination of the scene where the vehicle is located is a preset illumination, and the body of the vehicle is provided with a light source on one side;
the determining module is specifically configured to obtain a first brightness value of a light-facing side and a second brightness value of a backlight side in the panoramic view.
15. The apparatus according to claim 14, wherein when a difference between the first luminance value and the second luminance value at a junction of the light-facing side and the backlight side does not exceed a second preset difference, the uniformity of the picture luminance is satisfactory; and/or the presence of a gas in the gas,
when the color cast does not occur on the picture of the panoramic view, the consistency of the picture brightness meets the requirement.
16. The apparatus of claim 14 or 15, wherein the light sources of the front, left, right and rear single sides of the vehicle are turned on, respectively.
17. An electronic device comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: carrying out the method steps of any one of claims 1 to 8.
18. A machine readable storage medium, characterized in that a computer program is stored in the machine readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 1-8.
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| CN113923447A (en) * | 2021-10-29 | 2022-01-11 | 中汽院(重庆)汽车检测有限公司 | Delay test method for vehicle panoramic all-round looking test |
| CN114022450A (en) * | 2021-11-05 | 2022-02-08 | 中汽院(重庆)汽车检测有限公司 | Splicing effect judgment method for vehicle panoramic all-round inspection test |
| CN117097987B (en) * | 2023-10-16 | 2024-02-06 | 深圳市云希谷科技有限公司 | Method and equipment for automatically correcting camera |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001117186A (en) * | 1999-10-15 | 2001-04-27 | Canon Inc | Image pickup device and method and storage medium |
| JP2006318255A (en) * | 2005-05-13 | 2006-11-24 | Konica Minolta Photo Imaging Inc | Image processing method, image processor and image processing program |
| US20110141316A1 (en) * | 2009-12-16 | 2011-06-16 | Canon Kabushiki Kaisha | Image processing apparatus and image processing method |
| JP2013115520A (en) * | 2011-11-25 | 2013-06-10 | Sharp Corp | Three-dimensional video display device and three-dimensional video display device operation method |
| US20140307925A1 (en) * | 2013-04-15 | 2014-10-16 | Sony Corporation | Image processing apparatus, image processing method, and program |
| CN105430376A (en) * | 2015-11-12 | 2016-03-23 | 深圳进化动力数码科技有限公司 | Method and device for detecting consistency of panoramic camera |
| JP2017100593A (en) * | 2015-12-02 | 2017-06-08 | 株式会社Ｓｕｂａｒｕ | Outside-car environment recognition device |
| KR101749900B1 (en) * | 2016-10-13 | 2017-06-26 | (주)한국알파시스템 | Apparatus for image brighteness controlling, and control method thereof |
| CN106934792A (en) * | 2015-12-30 | 2017-07-07 | 深圳超多维光电子有限公司 | A kind of 3D effect detection method of display module, apparatus and system |
| WO2018062657A1 (en) * | 2016-09-30 | 2018-04-05 | Samsung Electronics Co., Ltd. | Method for displaying an image and an electronic device thereof |
| US20180137827A1 (en) * | 2016-11-17 | 2018-05-17 | Au Optronics Corporation | Display device |
| CN108650495A (en) * | 2018-06-28 | 2018-10-12 | 华域视觉科技(上海)有限公司 | A kind of automobile-used panoramic looking-around system and its adaptive light compensation method |
| US20190043433A1 (en) * | 2017-08-01 | 2019-02-07 | HKC Corporation Limited | Display method and display device |
| US20190104294A1 (en) * | 2017-09-26 | 2019-04-04 | HKC Corporation Limited | Method and structure for generating picture compensation signal, and restoring system |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6265871B1 (en) * | 1998-08-24 | 2001-07-24 | Logue Sensor Co. | Device for generating eddy current induction and detection by means of the axes of permeability within a toroid/torus core |
| JP2005012619A (en) * | 2003-06-20 | 2005-01-13 | Mitsubishi Electric Corp | Device for forming panoramic image |
| CA2569798C (en) * | 2005-12-01 | 2014-07-29 | The University Of Ottawa | Full-field three-dimensional measurement method |
| WO2010124542A1 (en) * | 2009-04-29 | 2010-11-04 | 广东威创视讯科技股份有限公司 | Image processing method and device for seamless splice display system |
| US8942465B2 (en) * | 2011-12-13 | 2015-01-27 | General Electric Company | Methods and systems for processing images for inspection of an object |
| CN103150715B (en) * | 2013-03-13 | 2016-10-19 | 腾讯科技（深圳）有限公司 | Image mosaic processing method and processing device |
| US10432927B2 (en) * | 2014-09-30 | 2019-10-01 | Ningbo Sunny Opotech Co., Ltd. | 3D test chart, adjusting arrangement, forming method and adjusting method thereof |
| US9626589B1 (en) * | 2015-01-19 | 2017-04-18 | Ricoh Co., Ltd. | Preview image acquisition user interface for linear panoramic image stitching |
| US9984451B2 (en) * | 2015-12-18 | 2018-05-29 | Michael Gormish | Linear grouping of recognized items in an image |
| CN107886039A (en) * | 2016-09-30 | 2018-04-06 | 法乐第(北京)网络科技有限公司 | Parking system panoramic view generation method and device |
| CN108347556A (en) * | 2017-01-21 | 2018-07-31 | 盯盯拍（东莞）视觉设备有限公司 | Panoramic picture image pickup method, panoramic image display method, panorama image shooting apparatus and panoramic image display device |
| CN206532077U (en) * | 2017-02-14 | 2017-09-29 | 歌尔股份有限公司 | The test device of full-view camera |
| CN106920224B (en) * | 2017-03-06 | 2019-11-05 | 长沙全度影像科技有限公司 | A method of assessment stitching image clarity |
| CN110809885A (en) * | 2017-06-28 | 2020-02-18 | 高途乐公司 | Image sensor defect detection |
| CN109300085B (en) * | 2017-07-25 | 2023-06-02 | 杭州海康汽车技术有限公司 | Image stitching method and device, electronic equipment and storage medium |
| CN110530868A (en) * | 2018-05-25 | 2019-12-03 | 上海翌视信息技术有限公司 | A kind of detection method based on location information and image information |
| CN108833911A (en) * | 2018-08-21 | 2018-11-16 | 安徽江淮汽车集团股份有限公司 | A kind of test method and system of 360 panorama function of vehicle |
| CN109358068B (en) * | 2018-11-13 | 2021-06-18 | 中国科学院光电技术研究所 | Flaw detection device and method for large-caliber plane mirror based on line scanning and annulus splicing |
| CN111275750B (en) * | 2020-01-19 | 2022-05-13 | 武汉大学 | Indoor space panoramic image generation method based on multi-sensor fusion |
| CN111402315B (en) * | 2020-03-03 | 2023-07-25 | 四川大学 | Three-dimensional distance measurement method for adaptively adjusting binocular camera baseline |
-
2021
- 2021-02-03 CN CN202110152595.2A patent/CN114079768B/en active Active
- 2021-07-20 CN CN202110819802.5A patent/CN113450257B/en active Active
- 2021-07-20 CN CN202110820630.3A patent/CN113489972A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001117186A (en) * | 1999-10-15 | 2001-04-27 | Canon Inc | Image pickup device and method and storage medium |
| JP2006318255A (en) * | 2005-05-13 | 2006-11-24 | Konica Minolta Photo Imaging Inc | Image processing method, image processor and image processing program |
| US20110141316A1 (en) * | 2009-12-16 | 2011-06-16 | Canon Kabushiki Kaisha | Image processing apparatus and image processing method |
| JP2013115520A (en) * | 2011-11-25 | 2013-06-10 | Sharp Corp | Three-dimensional video display device and three-dimensional video display device operation method |
| US20140307925A1 (en) * | 2013-04-15 | 2014-10-16 | Sony Corporation | Image processing apparatus, image processing method, and program |
| CN105430376A (en) * | 2015-11-12 | 2016-03-23 | 深圳进化动力数码科技有限公司 | Method and device for detecting consistency of panoramic camera |
| JP2017100593A (en) * | 2015-12-02 | 2017-06-08 | 株式会社Ｓｕｂａｒｕ | Outside-car environment recognition device |
| CN106934792A (en) * | 2015-12-30 | 2017-07-07 | 深圳超多维光电子有限公司 | A kind of 3D effect detection method of display module, apparatus and system |
| WO2018062657A1 (en) * | 2016-09-30 | 2018-04-05 | Samsung Electronics Co., Ltd. | Method for displaying an image and an electronic device thereof |
| KR101749900B1 (en) * | 2016-10-13 | 2017-06-26 | (주)한국알파시스템 | Apparatus for image brighteness controlling, and control method thereof |
| US20180137827A1 (en) * | 2016-11-17 | 2018-05-17 | Au Optronics Corporation | Display device |
| US20190043433A1 (en) * | 2017-08-01 | 2019-02-07 | HKC Corporation Limited | Display method and display device |
| US20190104294A1 (en) * | 2017-09-26 | 2019-04-04 | HKC Corporation Limited | Method and structure for generating picture compensation signal, and restoring system |
| CN108650495A (en) * | 2018-06-28 | 2018-10-12 | 华域视觉科技(上海)有限公司 | A kind of automobile-used panoramic looking-around system and its adaptive light compensation method |
Non-Patent Citations (1)
| Title |
|---|
| 黎吉国;王悦;张新峰;马思伟;: "一种鱼眼视频全景拼接中的亮度补偿算法", 中国科学:信息科学, no. 03, 20 March 2018 (2018-03-20) * |
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