CN115706751A - Image acquisition method and device, electronic equipment and storage medium - Google Patents
Image acquisition method and device, electronic equipment and storage medium Download PDFInfo
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Abstract
The disclosure relates to an image acquisition method, an image acquisition device, an electronic apparatus, and a storage medium, wherein the image acquisition method includes: acquiring a detected light spot parameter when the electronic equipment performs light supplement on an image to be acquired through a screen; and if the detection light spot parameters do not meet the specified conditions, adjusting the actual light spot parameters of the electronic equipment for supplementing light to the image to be acquired through the screen, so that the image to be acquired is acquired through the under-screen sensing system when the detected detection light spot parameters meet the specified conditions. The method and the device can ensure that the acquired image has better image quality.
Description
Technical Field
The present disclosure relates to the field of liquid crystal display, and in particular, to an image capturing method and apparatus, an electronic device, and a storage medium.
Background
In the related art, the off-screen sensing system can illuminate the finger fingerprint by illuminating the light spot on the screen of the electronic device, and then collects the light reflected by the finger fingerprint through the optical fingerprint sensor of the off-screen sensing system to form a fingerprint image.
In the acquisition process of the fingerprint image, the optical fingerprint sensor can adjust the gain value of the optical fingerprint sensor to the image so as to ensure the fixed incident light quantity in unit area, for example, when the brightness of a light source is insufficient, the gain can be improved, and when the brightness is too high, the gain is reduced, so that the acquisition requirement of the fingerprint image is met.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides an image capturing method, an image capturing apparatus, an electronic device, and a storage medium.
According to a first aspect of the embodiments of the present disclosure, there is provided an off-screen sensing system applied in an electronic device, in a process of acquiring an image, the electronic device performs light supplement on the image to be acquired through a screen, and the off-screen sensing system adjusts a gain along with a light supplement parameter; the image acquisition method comprises the following steps:
acquiring a detected light spot parameter when the electronic equipment performs light compensation on an image to be acquired through a screen;
and if the detected light spot parameters do not meet the specified conditions, adjusting the actual light spot parameters for supplementing light to the image to be acquired by the electronic equipment through the screen, so that the image to be acquired is acquired through the under-screen sensing system when the detected light spot parameters meet the specified conditions.
Optionally, the detected light spot parameter includes a brightness parameter, and the method further includes:
if the brightness parameter is not in the specified brightness range, determining that the detected light spot parameter does not meet the specified condition; and/or the presence of a gas in the gas,
the detection light spot parameters comprise brightness uniformity values, and the method further comprises the following steps:
if the brightness uniformity value is not in the specified uniformity value range, determining that the detected light spot parameters do not meet the specified strip; and/or the presence of a gas in the atmosphere,
the detected spot parameters comprise optical three-primary-color pixel ratios, and the method further comprises the following steps:
and if the optical three-primary-color pixel proportion is not in the specified proportion range, determining that the detected light spot parameter does not meet the specified condition.
Optionally, the brightness parameter includes a minimum brightness value, and the method further includes: if the minimum brightness value is below the brightness threshold, it is determined that the brightness parameter is not within the specified brightness range.
Optionally, the actual light spot parameter includes an actual brightness uniformity value, an actual brightness parameter, and an actual optical three-primary color pixel ratio, and if the detected light spot parameter does not satisfy the specified condition, the actual light spot parameter for supplementing light to the image to be acquired by the electronic device through the screen is adjusted, including:
and if the brightness parameter in the detected light spot parameters does not meet the specified condition, adjusting at least one parameter of an actual brightness uniform value, an actual brightness parameter and an actual optical three-primary-color pixel proportion for supplementing light to the image to be acquired by the electronic equipment through the screen.
Optionally, the method further includes:
if the detected light spot parameters meet the specified conditions, determining whether the gain of the under-screen sensing system is zero or not;
under the condition that the gain of the under-screen sensing system is not zero, adjusting the light supplement parameters of the under-screen sensing system to enable the gain of the under-screen sensing system to be zero;
and acquiring an image to be acquired through the under-screen sensing system.
According to a second aspect of the embodiments of the present disclosure, there is provided an electronic device, including an off-screen sensing system and a light spot parameter detection system;
the light spot parameter detection system is used for detecting light spots of light supplement when the electronic equipment supplements light for an image to be acquired through the screen to obtain detection light spot parameters;
the under-screen sensing system is used for executing the image acquisition method provided by the first aspect.
Optionally, the light spot parameter detecting system includes a light spot parameter detector; the facula parameter detector is arranged at the edge of an off-screen sensor used for collecting images in the off-screen sensing system.
Optionally, the number of the light spot parameter detectors is multiple, and the multiple light spot parameter detectors are centrosymmetric with respect to the center of the under-screen sensor.
According to a third aspect of the embodiments of the present disclosure, an image acquisition apparatus is provided, which is applied to an off-screen sensing system in an electronic device, in a process of acquiring an image, the electronic device performs light supplement on the image to be acquired through a screen, and the off-screen sensing system adjusts gain along with a light supplement parameter; the image acquisition device includes:
the detection light spot parameter acquisition module is configured to acquire detection light spot parameters detected when the electronic equipment performs light supplement on an image to be acquired through a screen;
the acquisition module is configured to adjust actual light spot parameters for supplementing light to the image to be acquired through the screen of the electronic device when the detected light spot parameters do not meet the specified conditions, so that the image to be acquired is acquired through the under-screen sensing system when the detected light spot parameters meet the specified conditions.
Optionally, the detected light spot parameters include a brightness parameter, a brightness uniformity value, and an optical three primary color pixel ratio, and the image capturing device further includes:
and the first condition judging module is configured to determine that the detection light spot parameter does not meet the specified condition when the brightness parameter is not in the specified brightness range.
The second condition judgment module is configured to determine that the detection light spot parameter does not meet the specified condition when the brightness uniformity value is not in the specified uniformity value range;
the third condition judgment module is configured to determine that the detection light spot parameters do not meet the specified conditions when the optical three-primary-color pixel proportion is not in the specified proportion range;
optionally, the brightness parameter includes a minimum brightness value, and the first condition determining module is configured to: when the minimum brightness value is lower than the brightness threshold, it is determined that the brightness parameter is not within the specified brightness range.
Optionally, the actual light spot parameter includes an actual brightness uniformity value, an actual brightness parameter, and an actual optical three primary color pixel ratio, and the acquisition module includes:
and the adjusting submodule is configured to adjust at least one of an actual brightness uniformity value, an actual brightness parameter and an actual optical three-primary-color pixel proportion for supplementing light to the image to be acquired through the screen by the electronic equipment when the brightness parameter in the detected light spot parameters does not meet a specified condition.
Optionally, the collecting module includes:
the gain determination submodule is configured to determine whether the gain of the under-screen sensing system is zero or not when the detected light spot parameters meet the specified conditions;
the light supplement parameter adjusting submodule is configured to adjust light supplement parameters of the under-screen sensing system under the condition that the gain of the under-screen sensing system is not zero, so that the gain of the under-screen sensing system is zero;
the acquisition sub-module is configured to acquire an image to be acquired through the off-screen sensing system.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the steps of the image acquisition method provided by the first aspect of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when the detected light spot parameters do not meet the specified conditions, the actual light spot parameters of the electronic equipment for supplementing light to the image to be acquired through the screen are adjusted, and when the detected light spot parameters meet the specified conditions, the image to be acquired is acquired through the under-screen sensing system. When the detection light spot parameters meet the specified conditions, the detection light spot parameters stably meet the image acquisition requirements of the under-screen sensor system, so that when the adjusted under-screen sensor system acquires the image to be acquired, the image does not need to be gained, the image noise is gained while the gain of the under-screen sensor system is avoided, the image quality is influenced, and the acquired image has better image quality.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
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The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram illustrating an application environment of an image acquisition method according to an exemplary embodiment.
FIG. 2 is a schematic diagram illustrating the structure of an off-screen sensing system according to an exemplary embodiment.
Fig. 3 is a schematic distribution diagram of a spot parameter detector according to an exemplary embodiment.
FIG. 4 is a flowchart illustrating an image acquisition method according to an exemplary embodiment.
FIG. 5 is a flowchart illustrating an image acquisition method according to another exemplary embodiment.
FIG. 6 is a block diagram illustrating an image capture device according to an exemplary embodiment.
FIG. 7 is a block diagram illustrating an electronic device in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.
With the continuous development of fingerprint verification technology, more and more electronic devices can be unlocked through fingerprints, a normally configured off-screen sensing system in the electronic device can collect fingerprints of a user, then the fingerprints of the user are verified, and after the fingerprints of the user are verified, unlocking is completed, and the user is allowed to operate the electronic device, so that the electronic device is prevented from being operated by strangers, and the safety of the electronic device is ensured. Therefore, the fingerprint unlocking technology is very popular with users due to the good convenience and safety.
In the fingerprint unlocking process, the step of collecting the fingerprint image by the optical fingerprint sensor is very important, and whether the fingerprint unlocking can be normally carried out is directly determined by the quality of the fingerprint image.
In the related art, the off-screen sensing system of the electronic device may illuminate the finger fingerprint by illuminating the light spot on the screen, and then collect the light reflected by the finger fingerprint through the optical fingerprint sensor of the off-screen sensing system to form a fingerprint image. When the optical fingerprint sensor collects the fingerprint image, the gain control can be automatically carried out, namely, when the light source brightness of the optical fingerprint sensor is insufficient, the brightness gain can be improved to complement the brightness, and when the brightness is too high, the brightness gain is reduced, so that the photosensitive quantity of the unit area is kept in a certain range, and the influence of overexposure or underexposure on the fingerprint image quality is prevented.
However, in practical applications, the detected light spot parameters (such as brightness) of the detected light spots may change due to screen wear, ambient light, and the like, so that the gain of the optical fingerprint sensor also changes dynamically, and when the gain of the optical fingerprint sensor is increased, the noise signal of the image is also amplified, thereby affecting the quality of the fingerprint image.
In view of this, the present disclosure provides an image acquisition method, an image acquisition apparatus, an electronic device, and a storage medium, which can omit a gain applied to an image to be acquired in an image acquisition process by using an off-screen sensing system, thereby avoiding a situation that a noise signal of the image is also amplified due to an image gain, and improving quality of the acquired image.
The following describes an application environment of the image capturing method provided in the present disclosure, as shown in fig. 1, the image capturing method may be applied to an electronic device 100, and specifically, the electronic device 100 may be a smartphone. For example, in the case that the electronic device 100 is a smart phone and the image to be captured is a fingerprint image, the electronic device 110 may include an off-screen sensing system 110 and a light spot parameter detection system (not shown in fig. 1). In the process of collecting an image, the electronic device may perform light supplement on the image to be collected through the screen, and the gain of the under-screen sensing system is adjusted according to the light supplement parameter. Optionally, the off-screen sensing system may include hardware such as an off-screen sensor and related algorithms, for example, a fingerprint sensor, a processor (e.g., an IC chip) and some logic algorithms in the IC chip, or when the logic algorithms are in the fingerprint sensor, the off-screen sensing system only includes the fingerprint sensor, wherein the fingerprint sensor is an optical fingerprint sensor.
Illustratively, as shown in fig. 2, the off-screen sensing system 110 may specifically include: a light source device 113, an optical fingerprint sensor 114, CG glass 111, an OLED screen 112 and a fingerprint module reinforcing steel sheet 115; the spot parameter detection system may include a spot parameter detector 130. Here, the CG glass 111 may be disposed on an upper layer of the OLED screen 112, and the CG glass 111 is used to contact a finger of a user. The light source device 113 may be built into the OLED screen 112, the light source device 113 being configured to form a light spot on the screen of the electronic device to shine a finger touching the screen. The optical fingerprint sensor 114 can be disposed on the fingerprint module reinforcing steel sheet 115, and the optical fingerprint sensor 114 is used for receiving the light reflected by the finger to form a fingerprint image. The fingerprint module reinforcing steel sheet 115 can be fixed on the whole machine middle frame 120 of the electronic device. The light spot parameter detector 130 can also be arranged on the fingerprint module reinforcing steel sheet 115 and located at the edge of the optical fingerprint sensor 114, and the light spot parameter detector 130 can be used for detecting light spot parameters of light spots, and optionally, the light spot parameters include but are not limited to brightness parameters, brightness uniformity values, optical three-primary-color pixel ratios and the like.
Alternatively, the number of the speckle parameter detectors 130 may be multiple, and the multiple speckle parameter detectors 130 may be uniformly distributed at the edge of the optical fingerprint sensor 114 to better detect the brightness uniformity of the speckle. As shown in fig. 3, when the number of the spot parameter detectors 130 is two, two spot parameter detectors 130 may be disposed on the fingerprint module reinforcing steel sheet 115, and the two spot parameter detectors 130 may be centrosymmetric with respect to the optical fingerprint sensor 114. The light spot parameter detector 130 may be a photodetector (photosensitive PD).
An area of the off-screen sensing system 110 corresponding to the screen of the electronic device 100 may be used as a fingerprint collection area.
FIG. 4 is a flow chart illustrating an image acquisition method, as shown in FIG. 4, for use in the off-screen sensing system 110 shown in FIG. 1, which may include the steps of:
in step S101, a detected light spot parameter is obtained when the electronic device performs light compensation on an image to be acquired through a screen.
For example, taking fingerprint unlocking performed by a user on an electronic device as an example, when the electronic device detects that a finger of the user presses a fingerprint acquisition area, it may be determined that the user needs to perform fingerprint unlocking, and therefore, a fingerprint image acquisition process may be entered. In the fingerprint image collecting process, the electronic equipment can supplement light to the image to be collected through the screen, specifically, the under-screen sensing system in the electronic equipment can control the light source device to emit light, the light source device emitting light forms a light spot on the screen of the electronic equipment, and the light of the light spot irradiates the finger of the user, so that the fingerprint image on the finger of the user is supplemented with light. After the light supplement, the under-screen sensing system can receive the detection light spot parameters detected by the light spot parameter detection system, so that the detection light spot parameters are obtained.
In step S102, if the detected light spot parameter does not satisfy the specified condition, the actual light spot parameter for light supplement of the image to be acquired by the electronic device through the screen is adjusted, so that the image to be acquired is acquired by the off-screen sensing system when the detected light spot parameter satisfies the specified condition.
The specified conditions are used for judging whether the detected light spot parameters meet the requirements of an optical fingerprint sensor in the off-screen sensing system for collecting fingerprint images. For example, when an optical fingerprint sensor captures a fingerprint image, it is necessary to keep the amount of light entering per unit area within a certain range.
The image to be captured is an assembly of images formed by continuously pressing a finger of a user on a screen, and is not an image at the same time as the previous image to be captured.
In some embodiments, the off-screen sensing system may compare the detected light spot parameter detected by the light spot parameter detection system with a specified light spot parameter range, and if the light spot parameter is within the specified light spot parameter range, it indicates that the currently acquired light spot parameter meets the requirement when the optical fingerprint sensor acquires the fingerprint image, and may determine that the light spot parameter meets the specified condition. If the light spot parameters are not in the range of the designated light spot parameters, the currently acquired light spot parameters do not meet the requirements of the optical fingerprint sensor for acquiring the fingerprint image, and the light spot parameters can be determined not to meet the designated conditions.
When the detected light spot parameters do not meet the specified conditions, the under-screen sensing system can adjust the actual light spot parameters of the electronic equipment for supplementing light to the image to be acquired through the screen, and particularly, the under-screen sensing system can adjust the actual light spot parameters of the light spots by adjusting the working parameters of the light source device. For example, the electronic device may increase the operating power of the light source arrangement to increase the actual brightness parameter of the light spot, thereby adjusting the actual light spot parameter. After the actual light spot parameters are adjusted, if the detected light spot parameters meet the specified conditions, the acquired images are acquired through the under-screen sensing system.
It can be understood that the actual light spot parameter refers to a parameter of the light spot itself, where the parameter is a parameter that is not affected by an external environment, and the detected light spot parameter may be a light spot parameter that is affected by an external environment (such as ambient light, shielding of a worn screen, and the like), so that the actual light spot parameter and the detected light spot parameter may be different, but when the actual light spot parameter changes, the detected light spot parameter also changes accordingly.
Optionally, the specified light spot parameter range may be pre-stored in a local memory of the electronic device, or may be stored in a cloud server that establishes a communication link with the electronic device, and when the electronic device needs the specified light spot parameter range, the specified light spot parameter range may be called from the cloud server.
In this embodiment, when the electronic device performs light supplement on the image to be acquired through the screen, the detected detection light spot parameters are detected, and when the detection light spot parameters do not satisfy the specified conditions, the actual light spot parameters for performing light supplement on the image to be acquired through the screen are adjusted on the electronic device, so that when the detected detection light spot parameters satisfy the specified conditions, the image to be acquired is acquired through the under-screen sensing system. When the detected light spot parameters meet the specified conditions, the detected light spot parameters stably meet the image acquisition requirements of the under-screen sensor system, so that when the adjusted under-screen sensor system acquires the image to be acquired, the image does not need to be gained, the image noise is gained while the gain of the under-screen sensor system is avoided, the image quality is influenced, and the acquired image has better image quality.
It can be understood that the image capturing method in this embodiment is not limited to be applied in the field of capturing a fingerprint image, that is, is not limited to be applied in the field of an optical fingerprint sensor, and may also be applied in other fields of devices requiring screen light supplement and gain change.
FIG. 5 is a flow chart illustrating an image acquisition method, as shown in FIG. 5, for use in the off-screen sensing system 110 shown in FIG. 1, according to another exemplary embodiment, which may include the steps of:
in step S201, a detected light spot parameter is obtained when the electronic device performs light compensation on an image to be acquired through a screen.
The detailed implementation of step S201 can refer to step S101, and therefore is not described herein.
In step S202, it is determined whether the detection spot parameter satisfies a specified condition.
In some embodiments, the detection light spot parameters include a brightness parameter, and the detection light spot parameters include a brightness uniformity value and an optical three-primary color pixel ratio, and the specific implementation of step S202 may include: if the brightness parameter is not in the specified brightness range, determining that the detection light spot parameter does not meet the specified condition; and/or if the brightness uniformity value is not in the specified uniformity value range, determining that the detection light spot parameter does not meet the specified strip; and/or determining that the detected light spot parameter does not satisfy the specified condition if the optical three-primary-color pixel ratio is not within the specified ratio range.
As an example, the luminance range is specified to be greater than or equal to the luminance parameter a1 and less than or equal to the luminance parameter a2, for example. When the under-screen sensing system detects that the brightness parameter a acquired currently is larger than the brightness value a, it can be determined that the detected light spot parameter does not meet the specified condition.
As one approach, the brightness parameter may include a minimum brightness value, and if the minimum brightness value is below a brightness threshold, it is determined that the brightness parameter is not within the specified brightness range.
For example, different areas of the light spot have different brightness parameters, and the off-screen sensing system may compare a minimum brightness value detected in the different areas of the light spot with a brightness threshold, where the brightness threshold is a preset brightness parameter lower limit, for example, the brightness parameter lower limit is a1, and the minimum brightness value is a min If a min Below a1, it can be directly determined that the luminance parameter is not within the specified luminance range, so that it can be quickly and efficiently determined whether the luminance parameter is within the specified luminance range.
Optionally, the off-screen sensing system may compare the maximum brightness value detected in different areas of the light spot with an upper limit of a brightness parameter, for example, the upper limit of the brightness parameter is a2, and the minimum brightness value is a max If a max If the value is larger than a2, the brightness parameter can be directly determined not to be in the specified brightness range, so that whether the brightness parameter is in the specified brightness range or not can be quickly and effectively determined.
Alternatively, the brightness parameter may include a brightness average value, where the brightness average value is an average value of the brightness parameters corresponding to different areas of the light spot, and if the under-screen sensing system detects that the brightness average value is not within a specified brightness average value range, it is determined that the brightness parameter is not within the specified brightness range.
For example, if the under-screen sensing system detects that the brightness average value is in the specified brightness average value range, the maximum brightness value is less than or equal to the brightness parameter upper limit, and the minimum brightness value is greater than or equal to the brightness parameter lower limit, it may be determined that the brightness parameter is in the specified brightness range, so as to ensure that the brightness parameter of the light spot integrally meets the requirement of the optical fingerprint sensor.
As another example, specifying the spot parameter range further includes specifying a uniformity value range, wherein the brightness uniformity value is indicative of a degree of uniformity of the brightness.
Illustratively, when the brightness uniformity value detected by the off-screen sensing system is not within the specified uniformity value range, the uniformity degree of the light spot is poor, and the image acquisition requirement of the optical fingerprint sensor is not met, so that the condition that the detected light spot parameter does not meet the specified condition can be determined.
As another example, the specified flare parameter range further includes a specified ratio range, where the ratio of the optical three primary color pixels is also referred to as RGB pixel color parameters, specifically, the ratio of the three color pixels of red, green and blue (R, G and B) can reflect the color condition of the image, and different colors are generated due to different superposition ratios of the three color pixels of RGB.
Illustratively, when the off-screen sensing system detects that the proportion of the pixels of the three primary colors is not in a specified proportion range, the color of the light spot is indicated to not meet the image acquisition requirement of the optical fingerprint sensor, so that the condition that the detected light spot parameter does not meet the specified condition can be determined.
In some embodiments, when the off-screen sensing system detects that one or more of the three parameters, i.e., the brightness parameter, the brightness uniformity value, and the optical three-primary color pixel ratio, satisfy the corresponding conditions, it may be determined that the detected light spot parameter satisfies the specified conditions, and the specific parameters to be selected for condition determination may be set according to actual requirements, which is not limited herein. As an example, for example, when the luminance parameter of the light spot detected by the off-screen sensing system is within a specified luminance range, the luminance uniformity value is within a specified uniformity value range, and the optical three primary color pixel ratio is within a specified ratio range, it may be determined that the detected light spot parameter of the light spot satisfies a specified condition, so that the light spot satisfying the specified condition can be ensured, the requirements of the optical fingerprint sensor in terms of luminance, luminance uniformity, and color are met, and the fingerprint image acquired by the optical fingerprint sensor under the light spot has better image quality.
In step S203, if the detected light spot parameter does not satisfy the specified condition, the actual light spot parameter for supplementing light to the image to be acquired by the electronic device through the screen is adjusted, so that when the detected light spot parameter satisfies the specified condition, the image to be acquired is acquired by the off-screen sensing system.
In some embodiments, the specific implementation of step S203 may include: and if the brightness parameter in the detected light spot parameters does not meet the specified condition, adjusting at least one parameter of an actual brightness uniform value, an actual brightness parameter and an actual optical three-primary-color pixel proportion for supplementing light to the image to be acquired by the electronic equipment through the screen.
For example, if the brightness parameter in the detection light spot parameters does not satisfy a specified condition, for example, the detection light spot parameters are lower than a brightness parameter threshold, the detection light spot parameters may be adjusted by increasing the actual brightness parameter. And the brightness parameter in the detection light spot parameter can meet the specified condition by matching the actual brightness uniformity value and the actual optical three-primary-color pixel proportion. In some scenarios, for example, even if the actual luminance parameter is adjusted to the maximum, the luminance parameter in the detection spot parameter does not satisfy the specified condition, the luminance parameter in the detection spot parameter may be made to satisfy the specified condition by adjusting the actual optical three-primary-color pixel ratio to achieve the effect of increasing the luminance parameter in the detection spot.
Similarly, if the actual brightness uniformity value or the actual optical three primary color pixel in the detected light spot parameter does not meet the specified condition, at least one parameter of the actual brightness uniformity value, the actual brightness parameter and the actual optical three primary color pixel ratio for supplementing light to the image to be acquired by the electronic device through the screen can be adjusted, so that the adjustment flexibility is improved.
In step S204, if the detected light spot parameter satisfies a specified condition, it is determined whether the gain of the off-screen sensing system is zero.
Wherein, the gain of the under-screen sensing system may refer to an image gain value of the optical fingerprint sensor.
Illustratively, when the off-screen sensing system detects that the detected light spot parameters meet the specified conditions, whether the image gain value of the optical fingerprint sensor is zero or not can be further detected, and when the detected light spot parameters meet the specified conditions, the detected light spot parameters meet the requirements of the optical fingerprint sensor and do not need to be gained, and at the moment, the fingerprint image is gained through the image gain value of the optical fingerprint sensor, so that the image quality is influenced. For example, if the image gain value (e.g., brightness gain value) of the optical fingerprint sensor is greater than zero when the detected light spot parameter satisfies a specified condition, overexposure of the fingerprint image captured by the optical fingerprint sensor may result. If the image gain value (such as the brightness gain value) of the optical fingerprint sensor is less than zero, the fingerprint image collected by the optical fingerprint sensor is under exposed.
In step S205, when the gain of the off-screen sensing system is not zero, the fill-in light parameter of the off-screen sensing system is adjusted so that the gain of the off-screen sensing system is zero.
For example, if the off-screen sensing system detects that the image gain value of the optical fingerprint sensor is greater than zero, the image gain value of the optical fingerprint sensor may be decreased to adjust the image gain value of the optical fingerprint sensor to zero. If the image gain value of the optical fingerprint sensor detected by the under-screen sensing system is smaller than zero, the image gain value of the optical fingerprint sensor can be increased, and the image gain value of the optical fingerprint sensor is adjusted to be zero.
Optionally, the off-screen sensing system may adjust an image gain value of the optical fingerprint sensor according to the fingerprint image that has been acquired by the optical fingerprint sensor and the currently acquired detection light spot parameter, for example, a brightness parameter of the already acquired detection fingerprint image is b1, a brightness parameter of the currently acquired detection light spot parameter is b2, and if b2-b1= x and x is greater than 0, the brightness gain value of the image gain value of the optical fingerprint sensor may be increased by x. If b2-b1= x and x is smaller than 0, the brightness gain value among the image gain values of the optical fingerprint sensor may be decreased by x. If b2-b1= x and x is equal to 0, the image gain value of the optical fingerprint sensor is maintained.
It can be understood that, after the image gain value is set, the optical fingerprint sensor automatically gains the acquired fingerprint image according to the set image gain value while acquiring the fingerprint image, that is, the fingerprint image acquired by the optical fingerprint sensor is the fingerprint image obtained after the fingerprint image is gained.
In step S206, an image to be acquired is acquired by the off-screen sensing system.
In the embodiment, if the detected light spot parameter meets the specified condition, whether the gain of the under-screen sensing system is zero or not is determined, and the light supplement parameter of the under-screen sensing system is adjusted under the condition that the gain of the under-screen sensing system is not zero, so that the gain of the under-screen sensing system is zero, and finally, the image to be acquired is acquired through the under-screen sensing system. Therefore, the under-screen sensing system can be ensured to obtain the image to be acquired without gaining the image, the condition that a noise signal of the image to be acquired is amplified is avoided, and better image quality can be ensured.
In addition, when the detected light spot parameters meet the preset conditions, the screen under-screen sensing system can directly determine whether the fingerprint image acquired by the optical fingerprint sensor is over-exposed or under-exposed when the image gain value of the optical fingerprint sensor is larger than zero or smaller than zero. Compared with the prior art, when the exposure degree of the fingerprint image is judged, a plurality of fingerprint images need to be collected, and the exposure degree is determined by comparing the gray scales and the brightness of the plurality of fingerprint images and the difference between adjacent front and back images. Not only avoiding the need of continuously collecting pictures within a certain time, but also increasing unnecessary time; moreover, the consumption of CPU hardware resources for comparing picture data is avoided, and the system power consumption is increased; and the condition that the exposure abnormality cannot be judged by comparing the difference between the pictures due to the continuous pictures collected within the specified time is also avoided. Therefore, the detection efficiency and accuracy of the image exposure condition are improved.
In some embodiments, the off-screen sensing system may start timing when the detected light spot parameter satisfies a specified condition, and may control the optical fingerprint sensor to acquire the fingerprint image at the light spot if the detected light spot parameter satisfies the specified condition for a specified time period. And if the detected light spot parameters fluctuate and do not meet the specified conditions within the specified time, the optical fingerprint sensor is not started.
In this embodiment, through detecting that the facula parameter satisfies the specified condition always within a specified time, just control optical fingerprint sensor and gather fingerprint image under this facula to can guarantee that optical fingerprint sensor carries out fingerprint image's collection under the condition that the facula has better stability, further promote the quality of the fingerprint image of collection.
In some embodiments, if the electronic device is in the process of fingerprint unlocking, fingerprint verification may be performed on a fingerprint image acquired by the optical fingerprint sensor, for example, the acquired fingerprint image is compared with a preset fingerprint image stored in the electronic device in advance, and if the acquired fingerprint image matches the preset fingerprint image (if the similarity is greater than the similarity threshold), the fingerprint verification is successful, and the electronic device may be unlocked.
FIG. 6 is a block diagram illustrating an image capture device according to an exemplary embodiment. The off-screen sensing system 110 is applied to the electronic device shown in fig. 1, in the process of acquiring an image, the electronic device performs light supplement on the image to be acquired through a screen, and the off-screen sensing system adjusts the gain along with the light supplement parameters. Referring to fig. 6, the image pickup apparatus 300 includes:
the detection light spot parameter acquiring module 310 is configured to acquire a detection light spot parameter detected when the electronic device performs light compensation on an image to be acquired through a screen.
The acquisition module 320 is configured to adjust an actual light spot parameter for supplementing light to an image to be acquired by the electronic device through the screen when the detected light spot parameter does not satisfy a specified condition, so as to acquire the image to be acquired through the off-screen sensing system when the detected light spot parameter satisfies the specified condition.
Optionally, the detected light spot parameters include a brightness parameter, a brightness uniformity value, and an optical three primary color pixel ratio, and the image capturing device 300 further includes:
and the first condition judging module is configured to determine that the detection light spot parameter does not meet the specified condition when the brightness parameter is not in the specified brightness range.
And the second condition judgment module is configured to determine that the detection light spot parameter does not meet the specified condition when the brightness uniformity value is not in the specified uniformity value range.
And the third condition judgment module is configured to determine that the detection light spot parameter does not meet the specified condition when the optical three primary color pixel proportion is not in the specified proportion range.
Optionally, the brightness parameter includes a minimum brightness value, and the first condition determining module is configured to: when the minimum brightness value is lower than the brightness threshold, it is determined that the brightness parameter is not within the specified brightness range.
Optionally, the actual light spot parameters include an actual brightness uniformity value, an actual brightness parameter, and an actual optical three-primary-color pixel ratio, and the collecting module 320 includes:
and the adjusting submodule is configured to adjust at least one of an actual brightness uniformity value, an actual brightness parameter and an actual optical three-primary-color pixel proportion for supplementing light to the image to be acquired through the screen by the electronic equipment when the brightness parameter in the detected light spot parameters does not meet a specified condition.
Optionally, the collecting module 320 includes:
and the gain determination sub-module is configured to determine whether the gain of the under-screen sensing system is zero or not when the detection light spot parameter meets a specified condition.
And the light supplement parameter adjusting submodule is configured to adjust the light supplement parameters of the under-screen sensing system under the condition that the gain of the under-screen sensing system is not zero, so that the gain of the under-screen sensing system is zero.
The acquisition sub-module is configured to acquire an image to be acquired through the under-screen sensing system.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The present disclosure also provides a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the image acquisition method provided by the present disclosure.
In an exemplary embodiment, an electronic device is also provided, which may include an off-screen sensing system and a spot parameter detection system.
Wherein: the light spot parameter detection system is used for detecting light spots of light supplement when the electronic equipment performs light supplement on an image to be acquired through the screen, so as to obtain detection light spot parameters.
The under-screen sensing system is used for executing the image acquisition method provided by any one of the embodiments.
In some embodiments, the spot parameter detection system includes a spot parameter detector; the facula parameter detector is arranged at the edge of an off-screen sensor used for collecting images in the off-screen sensing system.
In some embodiments, the number of the spot parameter detectors is plural, and the plural spot parameter detectors are centrosymmetric with respect to the center of the under-screen sensor.
Fig. 7 is a block diagram illustrating an electronic device 800 in accordance with one illustrative embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a smart door lock, a tablet device, a smart wearable device, and the like.
Referring to fig. 7, electronic device 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.
The processing component 802 generally controls overall operation of the electronic device 800, such as operations associated with display, data processing, data communication, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802. The electronic device may further include the off-screen sensing system and the light spot parameter detecting system in the above embodiments. The processor 820 may be integrated into the off-screen sensing system. The light spot parameter detection system is used for detecting light spots of light supplement when the electronic equipment supplements light for images to be collected through the screen, and light spot parameter detection is obtained.
The memory 804 is configured to store various types of data to support operations at the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, specifying a spot parameter range, specifying a brightness range, a brightness threshold, specifying a uniformity value range, specifying a scale range, specifying a duration, presetting a fingerprint image, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power component 806 provides power to the various components of the electronic device 800. Power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for electronic device 800.
The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the electronic device 800 is in an operation mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the electronic device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned fingerprint unlocking method when executed by the programmable apparatus.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (14)
1. An image acquisition method is characterized in that the method is applied to an off-screen sensing system in electronic equipment, in the process of acquiring an image, the electronic equipment carries out light supplement on the image to be acquired through a screen, and the off-screen sensing system adjusts gain along with light supplement parameters; the image acquisition method comprises the following steps:
acquiring a detected light spot parameter when the electronic equipment performs light supplement on an image to be acquired through a screen;
and if the detection light spot parameters do not meet the specified conditions, adjusting the actual light spot parameters of the electronic equipment for supplementing light to the image to be acquired through the screen, so that the image to be acquired is acquired through the under-screen sensing system when the detected detection light spot parameters meet the specified conditions.
2. The method of claim 1, wherein the detected spot parameters comprise brightness parameters, the method further comprising:
if the brightness parameter is not in the specified brightness range, determining that the detection light spot parameter does not meet the specified condition; and/or the presence of a gas in the atmosphere,
the detection light spot parameter comprises a brightness uniformity value, and the method further comprises the following steps:
if the brightness uniformity value is not in a specified uniformity value range, determining that the detection light spot parameters do not meet specified strips; and/or the presence of a gas in the gas,
the detection spot parameters comprise optical three-primary-color pixel proportions, and the method further comprises the following steps:
and if the optical three-primary-color pixel proportion is not in a specified proportion range, determining that the detection light spot parameter does not meet specified conditions.
3. The method of claim 2, wherein the brightness parameter comprises a minimum brightness value, and wherein the method further comprises: determining that the brightness parameter is not within a specified brightness range if the minimum brightness value is below a brightness threshold.
4. The method according to claim 2, wherein the actual light spot parameters include an actual luminance uniformity value, an actual luminance parameter, and an actual optical three primary color pixel ratio, and the adjusting the actual light spot parameters for supplementing light to the image to be acquired by the electronic device through the screen if the detected light spot parameters do not satisfy the specified conditions includes:
and if the brightness parameter in the detected light spot parameters does not meet the specified condition, adjusting at least one parameter of the actual brightness uniform value, the actual brightness parameter and the actual optical three-primary-color pixel proportion for supplementing light to the image to be acquired by the electronic equipment through a screen.
5. The method according to any one of claims 1-4, further comprising:
if the detected light spot parameters meet specified conditions, determining whether the gain of the under-screen sensing system is zero or not;
under the condition that the gain of the under-screen sensing system is not zero, adjusting the light supplement parameters of the under-screen sensing system to enable the gain of the under-screen sensing system to be zero;
and acquiring the image to be acquired through the under-screen sensing system.
6. An electronic device is characterized by comprising an off-screen sensing system and a light spot parameter detection system;
the light spot parameter detection system is used for detecting light spots of light supplement when the electronic equipment supplements light for images to be acquired through the screen to obtain detection light spot parameters;
the under-screen sensing system is used for executing the image acquisition method of any one of claims 1 to 5.
7. The electronic device of claim 6,
the light spot parameter detection system comprises a light spot parameter detector;
the light spot parameter detector is arranged at the edge of an under-screen sensor used for collecting images in the under-screen sensing system.
8. The electronic device of claim 7, wherein the number of the spot parameter detectors is plural, and the plural spot parameter detectors are centrosymmetric with respect to a center of the under-screen sensor.
9. An image acquisition device is characterized in that the device is applied to an off-screen sensing system in electronic equipment, in the process of acquiring an image, the electronic equipment performs light supplement on the image to be acquired through a screen, and the off-screen sensing system adjusts gain along with light supplement parameters; the image acquisition device includes:
the detection light spot parameter acquisition module is configured to acquire detection light spot parameters detected when the electronic equipment performs light supplement on an image to be acquired through a screen;
the acquisition module is configured to adjust actual light spot parameters for supplementing light to the image to be acquired through the screen by the electronic device when the detection light spot parameters do not meet specified conditions, so that the image to be acquired is acquired through the under-screen sensing system when the detected detection light spot parameters meet the specified conditions.
10. The image capturing device as claimed in claim 9, wherein the detected light spot parameters include a brightness parameter, a brightness uniformity value, and an optical three primary color pixel ratio, and the image capturing device further comprises:
a first condition determination module configured to determine that the detection light spot parameter does not satisfy a specified condition when the brightness parameter is not within a specified brightness range.
A second condition determination module configured to determine that the detected light spot parameter does not satisfy a specified condition when the brightness uniformity value is not within a specified uniformity value range;
and the third condition judgment module is configured to determine that the detection light spot parameter does not meet the specified condition when the optical three primary color pixel proportion is not in the specified proportion range.
11. The image capturing apparatus according to claim 10, wherein the brightness parameter comprises a minimum brightness value, and the first condition determining module is configured to: and when the minimum brightness value is lower than a brightness threshold value, determining that the brightness parameter is not in a specified brightness range.
12. The image capturing device as claimed in claim 10, wherein the actual light spot parameters include an actual luminance uniformity value, an actual luminance parameter, and an actual optical three primary color pixel ratio, and the capturing module includes:
and the adjusting submodule is configured to adjust at least one parameter of the actual brightness uniformity value, the actual brightness parameter and the actual optical three-primary-color pixel proportion for supplementing light to the image to be acquired through the screen by the electronic device if the brightness parameter in the detected light spot parameters does not meet a specified condition.
13. The image acquisition apparatus according to any one of claims 9 to 12, wherein the acquisition module comprises:
a gain determination submodule configured to determine whether a gain of the off-screen sensing system is zero when the detected light spot parameter satisfies a specified condition;
the light supplement parameter adjusting submodule is configured to adjust the light supplement parameter of the under-screen sensing system under the condition that the gain of the under-screen sensing system is not zero, so that the gain of the under-screen sensing system is zero;
a collection submodule configured to collect the image to be collected by the off-screen sensing system.
14. A computer-readable storage medium, on which computer program instructions are stored, which program instructions, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 5.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656665A (en) * | 2016-07-25 | 2018-02-02 | 印象认知（北京）科技有限公司 | Fingerprint collecting control method, device and electronic equipment based on display screen |
| CN109858423A (en) * | 2019-01-25 | 2019-06-07 | 上海思立微电子科技有限公司 | Fingerprint image acquisition methods and equipment |
| CN110059627A (en) * | 2019-04-18 | 2019-07-26 | 维沃移动通信有限公司 | A kind of display control method and terminal |
| CN110532972A (en) * | 2019-09-02 | 2019-12-03 | Oppo广东移动通信有限公司 | Electronic equipment and fingerprint image acquisition methods |
| CN110826438A (en) * | 2019-10-24 | 2020-02-21 | 维沃移动通信有限公司 | Display method and electronic equipment |
| CN111400686A (en) * | 2020-03-05 | 2020-07-10 | Oppo广东移动通信有限公司 | Fingerprint identification method and device, electronic equipment and storage medium |
| WO2020186415A1 (en) * | 2019-03-18 | 2020-09-24 | 深圳市汇顶科技股份有限公司 | Device and method for fingerprint recognition, and electronic apparatus |
| WO2020232696A1 (en) * | 2019-05-23 | 2020-11-26 | 深圳市汇顶科技股份有限公司 | Calibration method and device for optical fingerprint identification and electronic equipment |
| CN112949600A (en) * | 2021-04-07 | 2021-06-11 | Oppo广东移动通信有限公司 | Method, device, terminal and storage medium for collecting fingerprint under screen |
| CN113065487A (en) * | 2021-04-09 | 2021-07-02 | 深圳市汇顶科技股份有限公司 | Fingerprint identification method and device and electronic equipment |
-
2021
- 2021-08-09 CN CN202110910441.5A patent/CN115706751B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656665A (en) * | 2016-07-25 | 2018-02-02 | 印象认知（北京）科技有限公司 | Fingerprint collecting control method, device and electronic equipment based on display screen |
| CN109858423A (en) * | 2019-01-25 | 2019-06-07 | 上海思立微电子科技有限公司 | Fingerprint image acquisition methods and equipment |
| WO2020186415A1 (en) * | 2019-03-18 | 2020-09-24 | 深圳市汇顶科技股份有限公司 | Device and method for fingerprint recognition, and electronic apparatus |
| CN110059627A (en) * | 2019-04-18 | 2019-07-26 | 维沃移动通信有限公司 | A kind of display control method and terminal |
| WO2020232696A1 (en) * | 2019-05-23 | 2020-11-26 | 深圳市汇顶科技股份有限公司 | Calibration method and device for optical fingerprint identification and electronic equipment |
| CN112513871A (en) * | 2019-05-23 | 2021-03-16 | 深圳市汇顶科技股份有限公司 | Calibration method and device for optical fingerprint identification and electronic equipment |
| CN110532972A (en) * | 2019-09-02 | 2019-12-03 | Oppo广东移动通信有限公司 | Electronic equipment and fingerprint image acquisition methods |
| CN110826438A (en) * | 2019-10-24 | 2020-02-21 | 维沃移动通信有限公司 | Display method and electronic equipment |
| CN111400686A (en) * | 2020-03-05 | 2020-07-10 | Oppo广东移动通信有限公司 | Fingerprint identification method and device, electronic equipment and storage medium |
| CN112949600A (en) * | 2021-04-07 | 2021-06-11 | Oppo广东移动通信有限公司 | Method, device, terminal and storage medium for collecting fingerprint under screen |
| CN113065487A (en) * | 2021-04-09 | 2021-07-02 | 深圳市汇顶科技股份有限公司 | Fingerprint identification method and device and electronic equipment |
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