Image sensor, camera module, electronic device, and camera method

Abstract

Embodiments of the present application provide an image sensor, a camera module, an electronic device and a camera method. The image sensor specifically comprises: a substrate and a plurality of array-distributed color pixels and white pixels arranged on the substrate, the plurality of color pixels and the plurality of white pixels being alternately distributed; wherein at least part of the white pixels are provided with two spaced-apart polarizers, the polarization directions of the two polarizers in the same white pixel being the same.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to an image sensor, a camera module, an electronic device and a camera method. BACKGROUND

[0002] With the extreme pursuit of user experience, the user's functional requirements for electronic devices such as mobile phones and tablet computers are also getting higher and higher. Correspondingly, the functions of electronic devices are also getting richer and richer. For example, for some electronic devices, the camera module usually also has a polarizer. The polarizer has obvious advantages in some scenes, such as shooting in foggy weather and shooting in water environment. The image obtained by using the polarizer can effectively eliminate the interference of fog, and the color of the picture looks more saturated, and the leaves and grass are greener and more beautiful.

[0003] In the prior art, the polarizer is usually detachably connected to the electronic device. When it is necessary to use the polarizer for shooting, the polarizer can be installed on the electronic device. After shooting is completed, the polarizer can be removed. However, since the polarizer reduces the amount of incoming light, when the polarizer is used for shooting, the exposure time is increased or the sharpness of the image is reduced. Moreover, the addition of the polarizer in front of the lens increases more ghosting and light spots in the image, further reducing the quality of the image. SUMMARY

[0004] The present application aims to provide an image sensor, a camera module, an electronic device and a camera method to solve the problem of low image quality when using a polarizer for shooting.

[0005] To solve the above technical problems, the present application is implemented as follows:

[0006] In a first aspect, the present application discloses an image sensor, comprising: a substrate and a plurality of array-distributed color pixels and white pixels disposed on the substrate, the plurality of color pixels and the plurality of white pixels being alternately distributed; wherein,

[0007] Two polarizers are arranged in at least part of the white pixels, and the polarization directions of the two polarizers in the same white pixel are the same.

[0008] In a second aspect, the present application further discloses a camera module, comprising: a substrate, a lens seat, a lens, a cover plate and the image sensor according to any one of the above.

[0009] The lens seat is connected to the substrate and forms an accommodation cavity together with the substrate;

[0010] The image sensor is arranged in the accommodation cavity and electrically connected to the substrate;

[0011] The lens is arranged in the accommodating cavity and connected with the lens seat.

[0012] The cover plate is connected to the side of the lens seat away from the base plate.

[0013] In a third aspect, the present application also discloses an electronic device, which comprises the camera module.

[0014] In a fourth aspect, the present application also discloses a photographing method, which comprises:

[0015] Obtaining a first operation of a user;

[0016] Displaying a preview image in response to the first operation, wherein the preview image comprises a first region and a second region, the first region is a first image formed by color pixel photosensing, and the second region is a second image formed by polaroid photosensing of white pixels;

[0017] Obtaining a second operation of the user on the preview image;

[0018] Determining a target photosensing mode of the preview image in response to the second operation, wherein the target photosensing mode comprises at least one of full-color photosensing mode, full-polaroid photosensing mode and partial-polaroid photosensing mode.

[0019] Displaying a target preview image corresponding to the target photosensing mode.

[0020] In the embodiment of the present application, the image sensor can comprise a substrate and a plurality of array-distributed color pixels and white pixels arranged on the substrate, the plurality of color pixels and the plurality of white pixels are alternately distributed; two interval-arranged polaroids are arranged in at least part of the white pixels, and the polarizing directions of the two polaroids in the same white pixel are the same. In a specific application, the color pixels can be used for photosensing to form an image with higher definition, and the two polaroids in the white pixel can be used for polaroid photosensing and phase focusing to form a polaroid image. In this way, in the case that the image sensor is used for a camera module, a polaroid image can be formed by the polaroids on the white pixels without an additional polaroid mirror, and the color pixels can obtain an image with higher definition. That is, the image sensor can take into account the polaroid effect and the image definition to obtain an image with higher quality.

[0021] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0023] Figure 1 is a structural schematic diagram of an image sensor according to an embodiment of the present application;

[0024] Figure 2 is a structural schematic diagram of a camera module according to an embodiment of the present application;

[0025] Figure 3 is a step flow chart of a camera method according to an embodiment of the present application;

[0026] Figure 4 is a schematic diagram of a preview image according to an embodiment of the present application;

[0027] Reference signs: 10 - substrate, 11 - color pixel, 12 - white pixel, 13 - polarizer, 20 - circuit board, 21 - lens holder, 22 - lens, 23 - cover plate, 24 - image sensor, 25 - filter. DETAILED DESCRIPTION

[0028] Embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same or similar reference numerals throughout. The embodiments described below are examples for explaining the present application, and are not intended to limit the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative work fall within the scope of the present application.

[0029] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0030] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] Referring to Figure 1 , a structural schematic diagram of an image sensor according to an embodiment of the present application is shown, as Figure 1 shown, the image sensor can specifically include a substrate 10 and a plurality of color pixels 11 and white pixels 12 disposed on the substrate 10, the plurality of color pixels 11 and the plurality of white pixels 12 are alternately distributed; wherein at least part of the white pixels 12 are provided with two polarizers 13 disposed at intervals, the polarization directions of the two polarizers 13 in the same white pixel 12 are the same.

[0033] In the embodiment of the present application, the image sensor can include a substrate 10 and a plurality of color pixels 11 and a plurality of white pixels 12 disposed on the substrate 10, the plurality of color pixels 11 and the plurality of white pixels 12 are alternately distributed; at least part of the white pixels 12 are provided with two polarizers 13 disposed at intervals, the polarization directions of the two polarizers 13 in the same white pixel 12 are the same. In a specific application, the color pixels 11 can be used for light sensing to form an image with higher definition, and the two polarizers 13 in the white pixel 12 can be used for polarized light sensing and phase focusing to form a polarized image. In this way, in the case that the image sensor is used for a camera module, a polarized image can be formed by the polarizers 13 on the white pixels 12 without an additional polarizing mirror, and the color pixels 11 can obtain an image with higher definition. That is, the image sensor can take into account the polarization effect and image definition, and obtain an image with higher quality.

[0034] Specifically, the substrate 10 can serve as a structural body of the image sensor, for supporting the color pixels 11 and the white pixels 12. As shown, the color pixels 11 can include red pixels (R), blue pixels (B), green-red pixels (Gr), and green-blue pixels (Gb), etc., and the white pixels 12 (W) can be blank pixel points. W1, W2, W3, and W4 can be used to represent the white pixels 12 provided with the polarizer 13. Figure 1

[0035] It should be noted that, Figure 1 In the embodiment, only the case where the polarizer 13 is provided in part of the white pixels 12 is shown, but in actual applications, the polarizer 13 can also be provided on all the white pixels 12, which is not limited in the embodiment.

[0036] In the embodiment, the plurality of color pixels 11 can form a PPD structure (Pinned Photodiode Pixel), and since the light received by the color pixels 11 is not reduced, the color pixels 11 can obtain an image with higher definition based on the pixel photosensitive principle of the PPD. Since the two polarizers 13 are provided in at least part of the white pixels 12 and the polarization directions of the two polarizers 13 in the same white pixel 12 are the same, in specific applications, the two polarizers 13 with the same polarization direction can be used to allow polarized light with the same polarization direction to pass through, and the two polarizers 13 spaced apart in the same white pixel 12 can achieve phase focusing based on the DPD focusing technology, that is, the distance of the light imaging from the two different directions (the two polarizers spaced apart) is detected to calculate the distance of the object, so as to form a polarized image. In this way, in the case where the image sensor is used in a camera module, the polarized image can be formed by the polarizer 13 on the white pixel 12 without an additional polarizing mirror, and the color pixel 11 can obtain an image with higher definition. That is, the image sensor can take into account the polarization effect and image definition to obtain an image with higher quality.

[0037] In specific applications, after the white pixel 12 is superimposed with the two polarizers 13 spaced apart, the white pixel 12 can not only form a polarized image by photosensitive, but also can realize the motion of the moving object in the polarized image

[0038] Alternatively, the polarization directions of the polarizers 13 in the at least two white pixels 12 are different. Since the polarizer 13 only allows polarized light in its polarization direction to pass through, in the case where the polarization directions of the polarizers 13 in the at least two white pixels 12 are different, polarized light with at least two different polarization directions can be allowed to pass through to form polarized images with different polarization directions. By fusing the polarized images with different polarization directions, a high-quality polarized image can be obtained, and the quality of the image obtained by the image sensor can be improved. ​

[0039] In some optional embodiments of the present application, the polarization directions of the polarizer 13 can at least include 0 degrees, 45 degrees, 90 degrees and 135 degrees, so that the image sensor can obtain the light intensity information of the four polarization directions, and calculate the polarization angle and the polarization angle according to the light intensity information of the four polarization directions, to obtain the final polarization image.

[0040] It should be noted that the polarization direction of the polarizer 13 in the white pixel 12 can also be set to other values according to actual conditions, for example, the polarization direction of the polarizer 13 can be 20 degrees, 60 degrees or 120 degrees, etc., and the embodiments of the present application do not make specific limitations on the polarization direction of the polarizer.

[0041] In summary, the image sensor described in the embodiments of the present application can at least have the following advantages:

[0042] In the embodiments of the present application, the image sensor can include a substrate and a plurality of array-distributed color pixels and a plurality of white pixels disposed on the substrate, the plurality of color pixels and the plurality of white pixels are alternately distributed; at least part of the white pixels are provided with two polarizers arranged at intervals, and the polarization directions of the two polarizers in the same white pixel are the same. In specific applications, the color pixels can be used for light sensing to form an image with high definition, and the two polarizers in the white pixel can be used for polarized light sensing and phase focusing to form a polarization image. In this way, in the case that the image sensor is used in a camera module, a polarizing mirror is not needed to form a polarization image through the polarizer on the white pixel, and the color pixels can obtain an image with high definition. That is, the image sensor can take into account the polarization effect and the image definition, and obtain an image with high quality.

[0043] Reference Figure 2 , a structure schematic diagram of a camera module according to an embodiment of the present application is shown, as Figure 2 shown, the camera module can specifically include a substrate 10, a lens seat 21, a lens 22, a cover plate 23 and the image sensor 24 described in any one of the above, wherein the lens seat 21 is connected to the substrate 10 and forms an accommodating cavity together with the substrate 10; the image sensor 24 is disposed in the accommodating cavity and electrically connected to the substrate 10; the lens 22 is disposed in the accommodating cavity and connected to the lens seat 21; and the cover plate 23 is connected to the side of the lens seat 21 away from the substrate 10.

[0044] In the embodiment of the present application, the image sensor 24 of the camera module can include a substrate 10, and a plurality of array-distributed color pixels 11 and a plurality of white pixels 12 disposed on the substrate 10. At least part of the white pixels 12 are provided with two polarizers 13 arranged at intervals. The color pixels 11 can be used for light sensing to form an image with high definition, and the two polarizers 13 in the white pixels 12 can be used for polarized light sensing and phase focusing to form a polarized image. Therefore, the camera module can form a polarized image through the polarizers 13 on the white pixels 12 without an additional polarizing mirror, and the color pixels 11 can obtain an image with high definition. That is, the camera module can take into account the polarization effect and image definition to obtain an image with high quality.

[0045] In a specific application, the substrate 10 can be used to electrically connect with the image sensor 24 to realize transmission of electrical signals. The substrate 10 can be at least one of a flexible circuit board or a printed circuit board, and the type of the substrate 10 is not limited in the embodiment of the present application. The lens holder 21, as a main structural member of the camera module, can be used to support the substrate 10, the lens 22 and the cover plate 23. The material of the lens holder 21 can be metal or plastic, and the material of the lens holder 21 is not limited in the embodiment of the present application. The lens 22 can be composed of several lenses, and the lenses can be plastic lenses or glass lenses. By using the refraction principle of the lenses, the light rays of external scenes can form clear images on the focusing plane when passing through the lens 22 in the direction indicated by the arrow in FIG. 1. Figure 2 The image sensor 24 can include at least one of a charge-coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), but is not limited thereto. The CCD has the advantages of high sensitivity, small noise and large signal-to-noise ratio. However, the production process is complex, the cost is high, and the power consumption is high. The CMOS has the advantages of high integration, low power consumption (less than 1 / 3 of the CCD), and low cost. However, the noise is relatively large, the sensitivity is relatively low, and the light source requirement is high. The cover plate 23 can be a lens cover plate, mainly used for protecting the camera module.

[0046] It should be noted that the specific structure and working principle of the image sensor 24 in the embodiment of the present application can refer to the image sensor 24 in the foregoing embodiments, and the beneficial effects are similar, which will not be described here.

[0047] In an optional embodiment of the present application, the camera module can further include an optical filter 25 located between the image sensor 24 and the lens 22 and connected with the lens holder 21. The optical filter 25 can be used to filter out stray light, avoid the influence of stray light on the image sensor 24, and improve the quality of the image formed on the image sensor 24.

[0048] For example, the optical filter 25 can be an infrared filter, which can be used to filter out infrared light, so that the image sensor 24 can only receive visible light, thereby improving the quality of the image formed by the image sensor 24.

[0049] In the embodiment of the present application, the image sensor of the camera module can include a substrate and a plurality of arrayed color pixels and a plurality of white pixels disposed on the substrate, and at least part of the white pixels are provided with two spaced polarizers. The color pixels can be used to form an image with high definition, and the two polarizers in the white pixels can be used for polarized light sensing and phase focusing to form a polarized image. Therefore, the camera module can form a polarized image through the polarizers on the white pixels without an additional polarizing mirror, and the color pixels can obtain an image with high definition. That is, the camera module can take into account the polarization effect and image definition to obtain an image with high quality.

[0050] The embodiment of the present application further provides an electronic device, which can specifically include the above-mentioned camera module. The electronic device can include but is not limited to at least one of a mobile phone, a tablet computer, and a wearable device, and the type of the electronic device is not limited in the embodiment of the present application.

[0051] It should be noted that in the embodiment of the present application, the specific structure and working principle of the camera module can refer to the camera module in the foregoing embodiments, and the beneficial effects are similar, which will not be described here.

[0052] Reference Figure 3 is a flow chart of steps of a camera shooting method according to an embodiment of the present application. As shown in Figure 3 , the camera shooting method can specifically include the following steps.

[0053] Step 301: Obtain a first operation of a user.

[0054] In the embodiment of the present application, the electronic device can be installed with an application or a shortcut for camera shooting, and the application or the shortcut can be displayed on the display screen of the electronic device. When shooting is needed, the user can perform a first operation on the application, the shortcut, or other positions on the display screen. The electronic device can consider that the user needs to start the camera shooting operation when the first operation is obtained.

[0055] For example, the first operation can include, but is not limited to, at least one of clicking and sliding. The embodiments of the present application can not be limited to the specific content of the first operation.

[0056] Step 302: in response to the first operation, a preview image is displayed, wherein the preview image includes a first region and a second region, the first region is a first image formed by color pixels, and the second region is a second image formed by polarizing plates of white pixels.

[0057] In the embodiments of the present application, after the first operation of the user is obtained, the camera module of the electronic device can be started to capture an image, and after the capturing is completed, a preview image is displayed on the display screen of the electronic device.

[0058] In specific applications, the image sensor of the camera module can include color pixels and white pixels. The color pixels can be used to form a first image with high definition by light sensing. Two polarizing plates in the white pixels can be used for polarization sensing and phase focusing to form a second image with a polarization effect.

[0059] Referring to Figure 4 , a schematic diagram of a preview image according to an embodiment of the present application is shown. As shown in Figure 4 , the preview image includes a first region and a second region. The first region is a first image formed by color pixels, and the second region is a second image formed by polarizing plates of white pixels.

[0060] In some optional embodiments of the present application, the forming method of the second image can include the following sub-steps:

[0061] Sub-step S11: obtaining original light intensity information through the polarizing plates of white pixels.

[0062] In the image sensor in the embodiments of the present application, two spaced polarizing plates are arranged in the white pixels. The polarizing plates can be used to obtain original light intensity information. Specifically, the polarization directions of the polarizing plates can include at least 0 degrees, 45 degrees, 90 degrees and 135 degrees, so that the image sensor can obtain light intensity information in the four polarization directions.

[0063] Specifically, the light intensity information in the four polarization directions can be expressed by a stokes vector method.

[0064] (Formula One)

[0065] Wherein, S0 or I represents the intensity of the light wave, I0 represents the original light intensity information without the polarizing device. S1 or Q represents the difference between the horizontal polarization component and the vertical polarization component of the light wave; S2 or U represents the difference between the polarization component along the 45° direction and the polarization component along the 135° direction; S3 or V represents the difference between the right circular polarization component and the left circular polarization component of the light wave, which is approximately zero.

[0066] Sub-step S12: obtaining the linear polarization degree and the polarization angle based on the light intensity information.

[0067] In the embodiments of the present application, the formula for calculating the linear polarization degree (Dolp) and the polarization angle (Aop) according to the Stokes quantity is as follows:

[0068] (Formula two)

[0069] (Formula three)

[0070] In specific applications, the linear polarization degree D olp reflects the edge contour information of the image, and the polarization angle A op reflects the surface feature information of the image, and the fusion of the two is beneficial to comprehensively grasp the polarization characteristics of the image and plays an important role in extracting the edge information of the second image.

[0071] Sub-step S13: outputting the second image based on the linear polarization degree and the polarization angle.

[0072] In the embodiments of the present application, the second image can be outputted based on the linear polarization degree D olp and the polarization angle A op . Specifically, the Toet fusion method can be used to highlight the feature part of the original image. The fusion formula is as follows:

[0073] (Formula four)

[0074] Wherein a, b, and c are weight factors, and for example, a, b, and c can be 0.6, 0.2, and 0.2 respectively to obtain a better fusion effect. Of course, a, b, and c can also take other values according to actual needs, as long as the sum of the three is equal to 1. f(x, y) is the polarization feature image Dolp-Aop obtained by fusing D ol and A op .

[0075] In specific applications, Dolp'(x, y) and Aop'(x, y) can be calculated according to the following formula:

[0076] Dolp'(x, y) = Dolp(x, y) - Dolp(x, y) Aop(x, y) (Equation Five)

[0077] Aop'(x, y) = Aop(x, y) - Dolp(x, y) Aop(x, y) (Equation Six)

[0078] Dolp(x, y) Aop(x, y) = min{Dolp(x, y), Aop(x, y)} (Equation Seven)

[0079] Step 303: obtaining a second operation of the user on the preview image.

[0080] In the embodiment of the present application, the preview image can display a related button or shortcut for receiving the second operation of the user. In the case of obtaining the second operation of the user on the button or shortcut, it can be considered that the user needs to select the light sensing mode of the image.

[0081] For example, the second operation can include, but is not limited to, at least one of clicking and sliding, and the specific content of the second operation can not be limited in the embodiment of the present application.

[0082] Step 304: determining a target light sensing mode of the preview image in response to the second operation; wherein the target light sensing mode includes at least one of a full-color light sensing mode, a full-polarization light sensing mode, and a partial-polarization light sensing mode.

[0083] In the embodiment of the present application, after obtaining the second operation of the user, the target light sensing mode of the preview image can be determined. Specifically, the light sensing mode of the preview image can include: a full-color light sensing mode, that is, the preview image is all high-definition images obtained by the color pixels, a full-polarization light sensing mode, that is, the preview image is all polarization images obtained by the white pixels of the polarizer, and a partial-polarization light sensing mode, that is, part of the preview image is high-definition images obtained by the color pixels, and the other part is polarization images obtained by the white pixels of the polarizer.

[0084] Step 305: displaying a target preview image corresponding to the target light sensing mode.

[0085] In the embodiment of the present application, after determining the target light sensing mode of the preview image, the target preview image corresponding to the target light sensing mode can be displayed to meet the needs of the user.

[0086] Optionally, the step of displaying the target preview image corresponding to the target light sensing mode can include the following sub-steps:

[0087] Sub-step S21: based on the target light sensing mode, fusing the first image and the second image to obtain a target preview image.

[0088] In the embodiments of the present application, after the target light sensing mode is determined, the fused first image and second image can be fused to obtain a target preview image. Specifically, the fusion algorithm can be selected according to actual needs, such as two-dimensional discrete wavelet transform image fusion algorithm, weighted average method, image fusion algorithm based on Prewitt operator, etc. The fusion algorithm is not specifically limited in the embodiments of the present application.

[0089] Sub-step S22: displaying the target preview image.

[0090] In the embodiments of the present application, after the first image and the second image are fused based on the target light sensing mode, the target preview image corresponding to the target light sensing mode can be displayed to meet the needs of the user.

[0091] In some optional embodiments of the present application, the image capturing method further includes the following steps:

[0092] In the case where there is a moving object in the second image, the moving object is tracked in real time.

[0093] In the embodiments of the present application, when there is a moving object in the polarization image, the image capturing module will drive the lens and the motor according to the real-time motion information provided by the pixels to track the moving object in real time. When the next frame of image is captured, steps 301 to 305 are repeated, and a clearer image effect is obtained.

[0094] In summary, the image capturing method according to the embodiments of the present application can at least include the following advantages:

[0095] In the embodiments of the present application, a first operation of a user is acquired; a preview image is displayed in response to the first operation, wherein the preview image comprises a first region and a second region, the first region is a first image formed by color pixel photosensing, and the second region is a second image formed by a polarizer of white pixel photosensing; a second operation of the user on the preview image is acquired; a target photosensing mode of the preview image is determined in response to the second operation; wherein the target photosensing mode comprises at least one of a full-color photosensing mode, a full-polarization photosensing mode and a partial-polarization photosensing mode; and a target preview image corresponding to the target photosensing mode is displayed. In this way, a polarized image can be formed by the polarizer on the white pixel without an additional polarizing mirror, and the color pixel can obtain an image with higher definition. That is, the image sensor can take into account the polarization effect and the image definition to obtain an image with higher quality, and the corresponding preview image can be displayed according to the user's demand to improve the user's experience.

[0096] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An image sensor, characterized by, The image sensor comprises a substrate and a plurality of color pixels and white pixels arranged on the substrate, the color pixels and the white pixels being arranged alternately. At least some of the white pixels are provided with two polarizers arranged side by side and spaced apart, and the two polarizers in the same white pixel have the same polarization direction.

2. The image sensor of claim 1, wherein, The polarization directions of the polarizers in at least two white pixels are different.

3. The image sensor of claim 1, wherein, The polarization directions of the polarizers include at least 0 degrees, 45 degrees, 90 degrees and 135 degrees.

4. An image capture module, comprising: The camera module comprises a circuit board, a lens holder, a lens, a cover plate and the image sensor according to any one of claims 1 to 3. The lens holder is connected to the substrate and forms a receiving cavity together with the circuit board. The image sensor is arranged in the receiving cavity and electrically connected to the circuit board. The lens is arranged in the receiving cavity and connected to the lens holder. The cover plate is connected to the side of the lens holder away from the circuit board.

5. The camera module of claim 4, wherein, The camera module further comprises a filter located between the image sensor and the lens and connected to the lens holder.

6. An electronic device, comprising: The electronic device comprises the camera module according to any one of claims 4 to 5.

7. An image pickup method characterized by comprising: The camera method comprises: Obtaining a first operation of a user; In response to the first operation, displaying a preview image, wherein the preview image comprises a first region and a second region, the first region is a first image formed by color pixels, and the second region is a second image formed by polarizers of white pixels, wherein at least some of the white pixels are provided with two polarizers arranged side by side and spaced apart, and the two polarizers in the same white pixel have the same polarization direction; Obtaining a second operation of a user on the preview image; In response to the second operation, determining a target light sensing mode of the preview image, wherein the target light sensing mode comprises at least one of a full-color light sensing mode, a full-polarization light sensing mode and a partial-polarization light sensing mode; Displaying a target preview image corresponding to the target light sensing mode.

8. The image pickup method according to claim 7, wherein The method for forming the second image comprises: Obtaining original light intensity information through the polarizers of the white pixels; Based on the light intensity information, obtaining a linear polarization degree and a polarization angle; Based on the linear polarization degree and the polarization angle, outputting a second image.

9. The image pickup method according to claim 8, wherein The step of displaying a target preview image corresponding to the target light sensing mode comprises: Based on the target light sensing mode, fusing the first image and the second image to obtain a target preview image; Displaying the target preview image.

10. The image pickup method according to claim 7, wherein The camera method further comprises: In the case that there is a moving object in the second image, performing real-time focus tracking on the moving object.

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