CN108111843B - Test method and test system for mobile optical filter camera module - Google Patents
Test method and test system for mobile optical filter camera module Download PDFInfo
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- CN108111843B CN108111843B CN201711417386.6A CN201711417386A CN108111843B CN 108111843 B CN108111843 B CN 108111843B CN 201711417386 A CN201711417386 A CN 201711417386A CN 108111843 B CN108111843 B CN 108111843B
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- optical filter
- camera module
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- movable optical
- movable
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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
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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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
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
Abstract
The embodiment of the application discloses test method and test system of portable light filter module of making a video recording, wherein, the test method of portable light filter module of making a video recording utilizes infrared source to shine when portable light filter module of making a video recording is in operating condition, and obtains around the switching light filter the luminance value that portable light filter module of making a video recording received, judges according to two luminance values that obtain at last whether the light filter of portable light filter module of making a video recording switches the function normally, and the test of the light filter switching function of module of making a video recording for portable light filter provides a standard to the light filter switching function of module of making a video recording for the automatic test portable light filter provides the test basis.
Description
Technical Field
The application relates to the technical field of camera module testing, in particular to a testing method and a testing system of a mobile optical filter camera module.
Background
With the continuous development of electronic devices, the camera shooting function becomes one of the necessary functions in various electronic devices, and the camera shooting module integrated in the electronic device is used for assisting the electronic device to complete the camera shooting function.
The mobile optical filter camera module is used as one of the camera modules and has two optical filters: be full-color filter (IR) and full transmission filter (AR) respectively, these two kinds of filters can realize the work of working filter through the filter switching function of portable filter module of making a video recording, can be to the shooting environment of difference or shoot the switching that requires to realize full-color filter and full transmission filter, increase portable filter and make a video recording the operational environment of module, strengthen portable filter and make a video recording the suitability of module.
However, there is no feasible testing method for the optical filter switching function of the mobile optical filter camera module, and the testing of the optical filter switching function can only be realized by the visual observation of the operator when the optical filter is switched, which is poor in accuracy and requires much manpower.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a method and a system for testing a mobile optical filter camera module, so as to achieve the purpose of providing a set of test standards for the optical filter switching function of the mobile optical filter camera module, improve the accuracy of testing the optical filter switching function of the mobile optical filter camera module, and provide a test basis for automatically testing the optical filter switching function of the mobile optical filter camera module.
In order to achieve the technical purpose, the embodiment of the invention provides the following technical scheme:
a test method of a movable optical filter camera module is provided, the movable optical filter camera module is provided with a full-color optical filter and a full-transmission optical filter, and the test method of the movable optical filter camera module comprises the following steps:
setting the movable optical filter camera module to be in a working state;
irradiating the movable optical filter camera module by using an infrared light source;
switching the working optical filter of the movable optical filter camera module, and acquiring the brightness value received by the movable optical filter camera module before and after the working optical filter is switched;
and judging whether the optical filter switching function of the movable optical filter camera module is normal or not according to the two acquired brightness values.
Optionally, the switching of the optical filter of the mobile optical filter camera module and the obtaining of the brightness received by the mobile optical filter camera module before and after the switching of the optical filter include:
when the working optical filter of the movable optical filter camera module is a full-color optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera module in the current state as a first brightness value;
and when the working optical filter of the movable optical filter camera shooting module is a full-transmission optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera shooting module in the current state as a second brightness value.
Optionally, the determining, according to the two acquired brightness values, whether the optical filter switching function of the mobile optical filter camera module is normal includes:
and judging whether the first brightness value is smaller than a first preset threshold value or not and whether the second brightness value is larger than a second preset threshold value or not, if so, judging that the optical filter switching function of the movable optical filter camera module is normal, and if not, judging that the optical filter switching function of the movable optical filter camera module is abnormal.
Optionally, a difference between the second preset threshold and the first preset value is greater than or equal to 100 DN.
The utility model provides a test system of module is made a video recording to portable light filter, the module is made a video recording to portable light filter has full-color filter and full transmission filter, the test system of module is made a video recording to light filter includes during the removal:
the setting module is used for setting the movable optical filter camera shooting module to be in a working state;
the light source module is used for irradiating the movable optical filter camera shooting module by utilizing an infrared light source;
the brightness acquisition module is used for switching the working optical filters of the movable optical filter camera module and acquiring brightness values received by the movable optical filter camera module before and after the working optical filters are switched;
and the test module is used for judging whether the optical filter switching function of the movable optical filter camera module is normal or not according to the two acquired brightness values.
Optionally, the brightness obtaining module switches the optical filter of the mobile optical filter camera module, and obtains the brightness received by the mobile optical filter camera module before and after switching the optical filter, specifically, when the working optical filter of the mobile optical filter camera module is a full-color optical filter, obtains the brightness value received by the photosensitive chip of the mobile optical filter camera module in the current state, as a first brightness value;
and when the working optical filter of the movable optical filter camera shooting module is a full-transmission optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera shooting module in the current state as a second brightness value.
Optionally, the test module determines whether the optical filter switching function of the mobile optical filter camera module is normal according to the two acquired brightness values, and specifically determines whether the first brightness value is smaller than a first preset threshold value and the second brightness value is greater than a second preset threshold value, if so, the optical filter switching function of the mobile optical filter camera module is determined to be normal, and if not, the optical filter switching function of the mobile optical filter camera module is determined to be abnormal.
Optionally, a difference between the second preset threshold and the first preset threshold is greater than or equal to 100 DN.
It can be seen from the foregoing technical solutions that the embodiments of the present invention provide a method and a system for testing a mobile optical filter camera module, where in the method for testing a mobile optical filter camera module, when the mobile optical filter camera module is in a working state, an infrared light source is used to irradiate the mobile optical filter camera module, luminance values received by the mobile optical filter camera module before and after switching an optical filter are obtained, and finally, whether an optical filter switching function of the mobile optical filter camera module is normal is determined according to the obtained two luminance values, so as to provide a standard for testing the optical filter switching function of the mobile optical filter camera module, and provide a test basis for automatically testing the optical filter switching function of the mobile optical filter camera module.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flowchart illustrating a method for testing a mobile optical filter camera module according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart illustrating a method for testing a mobile optical filter camera module according to another embodiment of the present disclosure;
fig. 3 is a schematic flowchart illustrating a method for testing a mobile optical filter camera module according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a testing system of a mobile filter camera module according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The embodiment of the application provides a test method of a mobile optical filter camera module, the mobile optical filter camera module has a full-color optical filter and a full-transmission optical filter, as shown in fig. 1, the test method of the optical filter camera module during moving comprises the following steps:
s101: setting the movable optical filter camera module to be in a working state;
s102: irradiating the movable optical filter camera module by using an infrared light source;
s103: switching the working optical filter of the movable optical filter camera module, and acquiring the brightness value received by the movable optical filter camera module before and after the working optical filter is switched;
s104: and judging whether the optical filter switching function of the movable optical filter camera module is normal or not according to the two acquired brightness values.
It should be noted that the working state of the movable optical filter camera module means that the lens is in a light-transmitting state, and in this state, external light can reach the surface of the photosensitive chip through the lens and the optical filter, so as to achieve the purpose of exposure; when the movable optical filter camera shooting module is in a working state and the infrared light source irradiates the movable optical filter camera shooting module, the infrared light source can penetrate through the lens of the movable optical filter camera shooting module.
Generally, the full-color filter does not transmit infrared light emitted by the infrared light source, so when the working filter of the mobile filter camera module is a full-color filter, theoretically, the brightness value received by the mobile filter camera module should be zero, that is, the mobile filter camera module receives a completely black picture, but due to the influence of environmental stray light, assembly gaps and the like, in this state, the brightness value received by the mobile filter camera module should be smaller than a certain value;
the full-transmission optical filter can pass through infrared light emitted by the infrared light source, so that when a working optical filter of the movable optical filter camera module is the full-transmission optical filter and theoretically irradiates the movable optical filter camera module by using the infrared light source, the movable optical filter camera module can normally receive the infrared light emitted by the infrared light source, and therefore the received brightness value is large, and whether the optical filter switching function is normal or not can be judged by switching the brightness values received before and after the optical filter by the movable optical filter camera module.
Through the analysis, the test method of the movable filter camera module provides a standard for testing the filter switching function of the movable filter camera module, and provides a test basis for automatically testing the filter switching function of the movable filter camera module.
On the basis of the foregoing embodiment, in an embodiment of the present application, as shown in fig. 2, the switching the optical filter of the movable optical filter camera module, and acquiring the brightness received by the movable optical filter camera module before and after the optical filter is switched includes:
s1031: when the working optical filter of the movable optical filter camera module is a full-color optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera module in the current state as a first brightness value;
s1032: and when the working optical filter of the movable optical filter camera shooting module is a full-transmission optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera shooting module in the current state as a second brightness value.
The sequence of the brightness values when the working optical filter of the mobile optical filter camera module is a full-color optical filter or a full-transmission optical filter is not limited, the brightness values received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is the full-color optical filter, and the brightness values received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is the full-transmission optical filter; the brightness value received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is a full-color optical filter, and then the brightness value received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is a full-color optical filter. As the case may be.
On the basis of the foregoing embodiment, in another embodiment of the present application, as shown in fig. 3, the determining whether the filter switching function of the movable filter camera module is normal according to the two acquired brightness values includes:
s1041: and judging whether the first brightness value is smaller than a first preset threshold value or not and whether the second brightness value is larger than a second preset threshold value or not, if so, judging that the optical filter switching function of the movable optical filter camera module is normal, and if not, judging that the optical filter switching function of the movable optical filter camera module is abnormal.
It should be noted that, only when the first brightness value is smaller than a first preset threshold value and the second brightness value is greater than a second preset threshold value, it is determined that the optical filter switching function of the mobile optical filter camera module is normal. And the other conditions are that the switching function of the optical filter of the movable optical filter camera module is abnormal.
In a preferred embodiment of the present application, a difference between the second preset threshold and the first preset threshold is greater than or equal to 100DN, where DN (digital number) is used to identify a brightness value of the light sensing chip.
For example, when the first preset threshold takes a value of 5DN, the second preset threshold may take a value of 105DN, 110DN, 115DN, or the like; when the first preset threshold value is 10DN, the second preset threshold value may be 110DN, 112DN, 121DN, or the like. The present application does not limit this, which is determined by the actual situation.
Correspondingly, this application embodiment still provides a test system of portable filter module of making a video recording, portable filter module of making a video recording has full-color filter and full transmission filter, as shown in fig. 4, the test system of filter module of making a video recording includes during the removal:
the setting module 100 is used for setting the movable optical filter camera module to be in a working state;
the light source module 200 is used for irradiating the movable filter camera module by using an infrared light source;
the brightness acquisition module 300 is configured to switch the working optical filters of the mobile optical filter camera module, and acquire brightness values received by the mobile optical filter camera module before and after the working optical filters are switched;
and the test module 400 is configured to determine whether the optical filter switching function of the mobile optical filter camera module is normal according to the two acquired brightness values.
It should be noted that the working state of the movable optical filter camera module means that the lens is in a light-transmitting state, and in this state, external light can reach the surface of the photosensitive chip through the lens and the optical filter, so as to achieve the purpose of exposure; when the movable optical filter camera shooting module is in a working state and the infrared light source irradiates the movable optical filter camera shooting module, the infrared light source can penetrate through the lens of the movable optical filter camera shooting module.
Generally, the full-color filter does not transmit infrared light emitted by the infrared light source, so when the working filter of the mobile filter camera module is a full-color filter, theoretically, the brightness value received by the mobile filter camera module should be zero, that is, the mobile filter camera module receives a completely black picture, but due to the influence of environmental stray light, assembly gaps and the like, in this state, the brightness value received by the mobile filter camera module should be smaller than a certain value;
the full-transmission optical filter can pass through infrared light emitted by the infrared light source, so that when a working optical filter of the movable optical filter camera module is the full-transmission optical filter and theoretically irradiates the movable optical filter camera module by using the infrared light source, the movable optical filter camera module can normally receive the infrared light emitted by the infrared light source, and therefore the received brightness value is large, and whether the optical filter switching function is normal or not can be judged by switching the brightness values received before and after the optical filter by the movable optical filter camera module.
Through the above analysis, the test system of the mobile optical filter camera module provides a standard for testing the optical filter switching function of the mobile optical filter camera module, and provides a test basis for automatically testing the optical filter switching function of the mobile optical filter camera module.
On the basis of the foregoing embodiment, in an embodiment of the present application, the brightness obtaining module 300 is configured to switch the optical filter of the mobile optical filter camera module, and obtain the brightness received by the mobile optical filter camera module before and after switching the optical filter, specifically, when the working optical filter of the mobile optical filter camera module is a full-color optical filter, obtain the brightness value received by the photosensitive chip of the mobile optical filter camera module in the current state, as a first brightness value;
and when the working optical filter of the movable optical filter camera shooting module is a full-transmission optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera shooting module in the current state as a second brightness value.
The sequence of the brightness values when the working optical filter of the mobile optical filter camera module is a full-color optical filter or a full-transmission optical filter is not limited, the brightness values received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is the full-color optical filter, and the brightness values received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is the full-transmission optical filter; the brightness value received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is a full-color optical filter, and then the brightness value received by the photosensitive chip of the mobile optical filter camera module in the current state can be obtained when the working optical filter of the mobile optical filter camera module is a full-color optical filter. As the case may be.
On the basis of the foregoing embodiment, in another embodiment of the present application, the testing module 400 determines whether the optical filter switching function of the mobile optical filter camera module is normal according to the two acquired brightness values, specifically, determines whether the first brightness value is smaller than a first preset threshold value, and whether the second brightness value is greater than a second preset threshold value, if so, determines that the optical filter switching function of the mobile optical filter camera module is normal, and if not, determines that the optical filter switching function of the mobile optical filter camera module is abnormal.
It should be noted that, only when the first brightness value is smaller than a first preset threshold value and the second brightness value is greater than a second preset threshold value, it is determined that the optical filter switching function of the mobile optical filter camera module is normal. And the other conditions are that the switching function of the optical filter of the movable optical filter camera module is abnormal.
In a preferred embodiment of the present application, a difference between the second preset threshold and the first preset threshold is greater than or equal to 100DN, where DN (digital number) is used to identify a brightness value of the light sensing chip.
For example, when the first preset threshold takes a value of 5DN, the second preset threshold may take a value of 105DN, 110DN, 115DN, or the like; when the first preset threshold value is 10DN, the second preset threshold value may be 110DN, 112DN, 121DN, or the like. The present application does not limit this, which is determined by the actual situation.
To sum up, the embodiment of the present application provides a test method and a test system for a mobile optical filter camera module, wherein, when the mobile optical filter camera module is in an operating state, the test method for the mobile optical filter camera module irradiates the mobile optical filter camera module by using an infrared light source, obtains brightness values received by the mobile optical filter camera module before and after switching an optical filter, and finally judges whether the optical filter switching function of the mobile optical filter camera module is normal or not according to the two obtained brightness values, so that a standard is provided for testing the optical filter switching function of the mobile optical filter camera module, and a test basis is provided for automatically testing the optical filter switching function of the mobile optical filter camera module.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides a test method of portable filter module of making a video recording, portable filter module of making a video recording has full color filter and full transmission filter, its characterized in that, the test method of portable filter module of making a video recording includes:
setting the movable optical filter camera module to be in a working state;
irradiating the movable optical filter camera module by using an infrared light source;
switching the working optical filter of the movable optical filter camera module, and acquiring the brightness value received by the movable optical filter camera module before and after the working optical filter is switched;
judging whether the optical filter switching function of the movable optical filter camera module is normal or not according to the two acquired brightness values;
the switching of the optical filter of the movable optical filter camera module and the acquisition of the brightness received by the movable optical filter camera module before and after the switching of the optical filter comprise:
when the working optical filter of the movable optical filter camera module is a full-color optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera module in the current state as a first brightness value;
when the working optical filter of the movable optical filter camera module is a full-transmission optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera module in the current state as a second brightness value;
whether the optical filter switching function of the mobile optical filter camera module is normal or not is judged according to the two acquired brightness values:
and judging whether the first brightness value is smaller than a first preset threshold value or not and whether the second brightness value is larger than a second preset threshold value or not, if so, judging that the optical filter switching function of the movable optical filter camera module is normal, and if not, judging that the optical filter switching function of the movable optical filter camera module is abnormal.
2. The method of claim 1, wherein the difference between the second predetermined threshold and the first predetermined value is greater than or equal to 100 DN.
3. The utility model provides a test system of module is made a video recording to portable light filter, the module is made a video recording to portable light filter has full-color filter and full transmission filter, its characterized in that, the test system of module is made a video recording to portable light filter includes:
the setting module is used for setting the movable optical filter camera shooting module to be in a working state;
the light source module is used for irradiating the movable optical filter camera shooting module by utilizing an infrared light source;
the brightness acquisition module is used for switching the working optical filters of the movable optical filter camera module and acquiring brightness values received by the movable optical filter camera module before and after the working optical filters are switched;
the test module is used for judging whether the optical filter switching function of the movable optical filter camera module is normal or not according to the two acquired brightness values;
the brightness acquisition module switches the optical filter of the movable optical filter camera module, acquires brightness received by the movable optical filter camera module before and after the optical filter is switched, and specifically acquires a brightness value received by a photosensitive chip of the movable optical filter camera module in a current state as a first brightness value when a working optical filter of the movable optical filter camera module is a full-color optical filter;
when the working optical filter of the movable optical filter camera module is a full-transmission optical filter, acquiring a brightness value received by a photosensitive chip of the movable optical filter camera module in the current state as a second brightness value;
the test module judges whether the optical filter switching function of the movable optical filter camera module is normal according to the two acquired brightness values, judges whether the first brightness value is smaller than a first preset threshold value and whether the second brightness value is larger than a second preset threshold value, judges that the optical filter switching function of the movable optical filter camera module is normal if the first brightness value is smaller than the first preset threshold value, and judges that the optical filter switching function of the movable optical filter camera module is abnormal if the second brightness value is not larger than the second preset threshold value.
4. The system of claim 3, wherein the difference between the second predetermined threshold and the first predetermined threshold is greater than or equal to 100 DN.
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| CN110505477A (en) * | 2019-09-17 | 2019-11-26 | 普联技术有限公司 | Double filter test methods, device, equipment and storage medium |
| CN113031386B (en) * | 2019-12-25 | 2024-03-29 | 浙江宇视科技有限公司 | Abnormality detection method, device, equipment and medium for double-filter switcher |
| CN113132616B (en) * | 2019-12-31 | 2022-07-22 | 富联国基(上海)电子有限公司 | Working mode switching device and working mode switching detection method |
| CN111654692B (en) * | 2020-06-15 | 2022-03-29 | 浙江水晶光电科技股份有限公司 | Camera detection method and device, camera and storage medium |
| CN112235567A (en) * | 2020-10-14 | 2021-01-15 | 歌尔科技有限公司 | Camera testing method, device and system and computer readable storage medium |
| CN112817108B (en) * | 2021-01-22 | 2022-10-18 | 浙江大华技术股份有限公司 | Method and device for detecting switching between optical filters, storage medium and electronic device |
| CN113132718B (en) * | 2021-04-20 | 2022-05-24 | 深圳市多酷科技有限公司 | Day and night type image pickup device switching abnormality detection method, device, equipment and storage medium |
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| CN102143379B (en) * | 2011-03-25 | 2012-09-05 | 东北大学 | Reliability detection device for automatic switchover filter disc of vidicon and control method thereof |
| KR101138221B1 (en) * | 2012-02-02 | 2012-04-24 | (주)아이솔루션 | Camera test system for testing shading and color balancing |
| CN103841409B (en) * | 2012-11-26 | 2015-10-14 | 浙江大华技术股份有限公司 | Detection method, Apparatus and system that infrared fileter switches |
| CN103945201B (en) * | 2013-01-21 | 2016-04-13 | 浙江大华技术股份有限公司 | A kind of IR-Cut filter changing method, device and video camera |
| US20140204200A1 (en) * | 2013-01-24 | 2014-07-24 | Wipro Limited | Methods and systems for speed calibration in spectral imaging systems |
| CN107370955A (en) * | 2017-08-21 | 2017-11-21 | 深圳市天视通电子科技有限公司 | Can be automatically switched web camera, implementation method and the monitoring system of diurnal pattern |
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