WO2018028585A1 - Module multicaméra à diaphragmes de tailles différentes, et application associée - Google Patents

Module multicaméra à diaphragmes de tailles différentes, et application associée Download PDF

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Publication number
WO2018028585A1
WO2018028585A1 PCT/CN2017/096519 CN2017096519W WO2018028585A1 WO 2018028585 A1 WO2018028585 A1 WO 2018028585A1 CN 2017096519 W CN2017096519 W CN 2017096519W WO 2018028585 A1 WO2018028585 A1 WO 2018028585A1
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Prior art keywords
camera module
monochrome
color
image
aperture
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Application number
PCT/CN2017/096519
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English (en)
Chinese (zh)
Inventor
闻人迪
吴旭东
蔡赞赞
Original Assignee
宁波舜宇光电信息有限公司
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Filing date
Publication date
Priority claimed from CN201610662634.2A external-priority patent/CN107734214A/zh
Priority claimed from CN201620865436.1U external-priority patent/CN205961281U/zh
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Publication of WO2018028585A1 publication Critical patent/WO2018028585A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums

Definitions

  • the present invention relates to a multi-camera module, and more particularly to a dual camera module having apertures of different sizes that enhance the dark state performance and sharpness of the final composite image and obtain more accurate depth information.
  • the development trend of the camera module of the smart phone is developing toward the dual camera technology, and since the smart phone has strict requirements on the thickness, it is necessary to provide an excellent shooting effect without increasing the volume too much.
  • the overall height of the camera module of the smart phone cannot be too high, which limits the size of the sensor chip to be too large, and the imaging effect cannot be further improved. Therefore, in order to improve the image quality, a dual camera solution is adopted.
  • the current dual-camera scheme uses the same pixel RGB+MONO chip scheme. Since the algorithm needs to synthesize the image, it is necessary to ensure the image consistency, and the lens of the same specification is used.
  • the definition of the pixels of the dual camera is not a simple addition. Therefore, it is necessary to improve the performance of the dual camera module without increasing the cost, so that the user has a better experience, especially to enhance the dark state effect. It is important to enhance the user experience.
  • Another object of the present invention is to provide a multi-camera module having apertures of different sizes, including two or more camera modules, which are at least one monochrome (black and white) camera module, and at least one color camera module.
  • the image sensor is respectively matched with a color sensor chip and a monochrome sensor chip (black and white camera chip), so that the multi-camera module with different apertures, such as the dual camera module, uses the image captured by the color sensor chip when simultaneously capturing images.
  • the image taken by the monochrome sensor chip assists.
  • the lens aperture of the camera module that matches the monochrome photosensitive chip is increased, so that the dual-camera module of the different size apertures can further have better dark state effect and definition.
  • Another object of the present invention is to provide a multi-camera module having apertures of different sizes, wherein the lens apertures of the two camera modules are different in size, that is, the camera module that matches the monochrome sensor chip
  • the aperture of the lens is made larger, which ensures that the image enhances the dark state under the premise of consistency.
  • Another object of the present invention is to provide a multi-camera module having apertures of different sizes, wherein the color sensor chip only filters the light to determine where the color should appear. Because of this, it will lose some details.
  • the aperture of the monochrome camera module of the present invention is increased, so that the amount of light entering per unit time is increased, because the monochrome photosensitive chip is only interested in the incident light of any given point, regardless of the color of the light. What is it, so that the monochrome sensor chip can capture more details from the scene. It is these details that make the image clearer and the dark state effect is significantly enhanced.
  • Another object of the present invention is to provide a multi-camera module having apertures of different sizes, wherein an algorithm is used to ensure focus, depth, and information of the two camera modules.
  • Another object of the present invention is to provide a multi-camera module having apertures of different sizes, in order to achieve an increase in brightness and a reduction in noise in dark light.
  • the dual-camera module of different size apertures can also improve the focusing speed, wherein the triangulation principle between the two camera modules and the focusing object is used to achieve the focusing speed.
  • the present invention provides a multi-camera module having different apertures, including: two or more camera modules, wherein the two or more camera modules have lens apertures of different aperture sizes.
  • the two or more camera modules include at least one monochrome camera module, and at least one color camera module, wherein the monochrome camera module and the color camera module have lenses of different aperture sizes. aperture.
  • the lens aperture of the monochrome camera module is larger than the lens aperture of the color camera module, so that the multi-camera module achieves a better dark state effect.
  • the aperture coefficient Fno of the lens aperture of the monochrome camera module is 1.9, and the aperture coefficient Fno of the lens aperture of the color camera module is 2.0. It is understood that the specific numerical values herein are by way of example only and not limiting of the invention.
  • the multi-camera module is a dual camera module.
  • the color camera module and the monochrome camera module are assembled on the same circuit board substrate.
  • the color camera module and the monochrome camera module are respectively assembled on two circuit board substrates.
  • the multi-camera module further includes a connection unit connected to the circuit board substrate and configured to connect the multi-camera module to a control board of an electronic device.
  • the multi-camera module further includes two connection units respectively connected to the two circuit board substrates and configured to connect the multi-camera module to a control board of an electronic device.
  • the images obtained by the color camera module and the monochrome camera module are finally used to synthesize a composite image.
  • the color camera module is configured with a color sensor chip implemented as an RGB or RGBW chip, wherein the monochrome camera module is configured with a black and white light sensor chip, which is implemented as a MONO chip.
  • the present invention provides an image synthesizing method for a multi-camera module, which includes the following steps:
  • the monochrome camera module uses a larger lens aperture for the black and white chip to obtain more grayscale information, so that the final image of the multi-camera module has a better dark state. Effect and Sharpness.
  • an image captured by the color camera module is used as a reference image, and another image captured by the monochrome camera module is used as an image processing auxiliary information.
  • Figure 1 is a front perspective view of a multi-camera module of a different size aperture in accordance with a first preferred embodiment of the present invention.
  • FIG. 2 is a left perspective view of a multi-camera module of a different size aperture in accordance with a first preferred embodiment of the present invention.
  • FIG. 3 is a right perspective view of a multi-camera module of different size apertures in accordance with a first preferred embodiment of the present invention.
  • FIG. 4 is a bottom perspective view of a multi-camera module of different size apertures in accordance with a first preferred embodiment of the present invention.
  • Figure 5 is a front perspective view of a multi-camera module of a different size aperture in accordance with a second preferred embodiment of the present invention.
  • Figure 6 is a left perspective view of a multi-camera module of a different size aperture in accordance with a second preferred embodiment of the present invention.
  • Figure 7 is a right perspective view of a multi-camera module of a different size aperture in accordance with a second preferred embodiment of the present invention.
  • Figure 8 is a bottom perspective view of a multi-camera module of a different size aperture in accordance with a second preferred embodiment of the present invention.
  • the term “a” is understood to mean “at least one” or “one or more”, that is, in one embodiment, the number of one element may be one, and in other embodiments, the element The number can be multiple, and the term “a” cannot be construed as limiting the quantity.
  • a multi-camera module of different size apertures according to a first preferred embodiment of the present invention is provided for use in an electronic device such as a smart phone, a tablet computer, a camera, a computer, Industrial inspection, medical detection, and monitoring equipment, etc., improve the quality of the final image or image taken by the multi-camera module of the different size apertures.
  • the multi-camera modules of different size apertures are mainly applied to pixel enhancement, panoramic deep shot, larger HDR, dark state boost, and the like.
  • a dual camera module will be taken as an example for specific description.
  • the dual camera module of the different size apertures comprises a circuit board substrate 10, two camera modules and a connection unit 40. More specifically, in this embodiment, the two camera modules include a monochrome camera module 20 and a color camera module 30.
  • the monochrome camera module 20 and the color camera module 30 are shared and Fixed to the circuit board substrate 10 to ensure that the relative positions of the two camera modules are not displaced, thereby ensuring that the dual-camera modules of the different size apertures do not occur when being mounted to the electronic device. dislocation.
  • FIG. 1 it is a front perspective view of the dual camera module, which is configured with two of the camera modules. 2 and 3 are respectively left and right views of the dual camera module, and FIG. 4 is a schematic view of the bottom structure of the dual camera module.
  • the bottom side of the circuit board substrate 10 may have a reinforcing plate such as a copper plate, thereby At the same time as the reinforcing effect, heat dissipation can be enhanced.
  • each of the camera modules may be a fixed focus camera module or an auto focus camera module with a drive motor, and the invention is not limited.
  • the monochrome camera module 20 includes a lens and a monochrome photosensitive chip (black and white photosensitive chip), and the color camera module includes a lens and a color sensor chip.
  • the dual camera module is connected to the electronic device through the connecting unit 40 such as a flexible circuit board.
  • the color sensor chip corresponds to the color camera module 30, and the monochrome sensor chip corresponds to the monochrome camera module 20, so that the dual camera module of the different size aperture is used to perform the
  • the color sensor chip is matched with the image captured by the lens of the color camera module 30 or the image as a reference image
  • the monochrome photosensitive chip is matched with the monochrome camera module 20
  • the image taken by the lens or the image is used as image processing auxiliary information, and finally synthesized to obtain a synthetic image with better definition.
  • the color sensor chip is matched with the color camera module 30 as a main camera, and its function is shooting.
  • the monochrome photosensitive chip is matched with the monochrome camera module 20 as an auxiliary camera, and its function is to provide auxiliary image information.
  • the dual camera module of different size apertures synthesizes the reference image and the image processing auxiliary information by an algorithm to obtain the synthesized image, thereby ensuring the final The image or the quality of the image.
  • the lens aperture of the color camera module 30 and the monochrome camera module 20 are different, that is, the dual camera modules of the different size apertures of the present invention are two different size apertures.
  • the combination of the camera modules, wherein the aperture of the lens corresponding to the monochrome camera module is made larger to ensure the image consistency of the camera modules of the two different size apertures, so as to enhance the scope of the present invention.
  • the large aperture can ensure that the monochrome camera module has a stable and sufficient amount of light at any time, and can achieve good imaging effects in low light conditions, and can also perform background blurring. Special handling, etc.
  • the color camera module 30 is configured with a color light filter, and correspondingly, the color sensor chip is only sensitive to colored light, so that some details are lost.
  • the aperture of the monochrome camera module of the present invention is increased, so that the amount of light entering per unit time is increased, because the monochrome photosensitive chip does not need to consider the color of the light, so that the monochrome photosensitive chip can be more abundantly captured from the scene.
  • the details It is these details that make the final composite image clearer and the dark state effect is significantly enhanced.
  • the connecting unit 40 is implemented as a flexible circuit board (FPC), and one end thereof is connected to the circuit board substrate 10 (which may be a PCB rigid circuit board) of the dual camera module.
  • the other end of the flexible circuit board is connected to the control board of the electronic device, so that the image information captured by the color camera module 30 and the monochrome camera module 20 can be transmitted to the control board of the electronic device and synthesized.
  • the final composite image is obtained.
  • the color sensor chip can be implemented as an RGB (Red-Green-Blue) or RGBW Red-Green-Blu-White chip.
  • the monochromatic photosensitive chip is implemented as a MONO (monochrome) chip.
  • the lens aperture of the monochromatic camera module 20 and the aperture coefficient Fno of the lens aperture of the color camera module 30 can be implemented as 1.9 and Fno2.0, respectively.
  • the aperture coefficient Fno here is the ratio of the focal length of the camera module to the effective aperture. The smaller the value, the larger the aperture aperture.
  • the lens aperture of the monochrome camera module 20 is 1.9, and the lens aperture 2.0 of the color camera module 30 is such that the single aperture is used.
  • the color camera module 20 is used by the monochrome sensor chip to obtain more grayscale information. It is worth mentioning that such numerical combinations are by way of example only and not limiting of the invention.
  • the combination of the lens aperture of the monochrome camera module 20 and the lens aperture of the color camera module 30 can be implemented as 1.8 and 1.9, respectively; or the monochrome camera module
  • the aperture of the lens aperture of 20 and the aperture of the lens aperture of the color camera module 30 may be implemented as 2.0 and 2.2, respectively.
  • the present invention also provides an image synthesizing method for a multi-camera module having apertures of different sizes, which includes the following steps:
  • the image is captured by the color camera module 30 and the monochrome camera module 20 of the multi-camera module, wherein the monochrome camera module 20 has a larger aperture relative to the color camera module. To increase the amount of light entering;
  • the processed image after processing is stored or stored.
  • the multi-camera module is implemented as a dual camera module configured as a color camera module 30 having the color sensor chip and the monochrome camera module 20 having the monochrome sensor chip. It is worth mentioning that the color apertures of the color camera module 30 and the monochrome camera module 20 are different. In particular, although the lens apertures of the two camera modules are different, the two camera modules respectively The captured images or images are consistent, so that the dark state effect is enhanced by the dual-camera modules of different sizes of apertures in the same pixel.
  • the monochrome camera module 20 uses a larger lens aperture for the monochrome photosensitive chip to capture more grayscale information, so that the final image of the dual-camera module of the different size apertures is better. Dark state effect and clarity.
  • the image captured by the color camera module 30 having the color sensor chip serves as a reference image.
  • An image captured by the monochrome camera module 20 having the monochrome photosensitive chip is used as an image processing auxiliary information.
  • the reference image is processed by applying auxiliary information in the image, wherein the image synthesis is a method of stitching a picture.
  • a multi-camera module of different size apertures according to a second preferred embodiment of the present invention is provided for an electronic device such as a smart phone, a tablet computer, a camera, a computer, Industrial inspection, medical detection, and monitoring equipment, etc., improve the quality of the final image or image taken by the multi-camera module of the different size apertures.
  • the apertures of different sizes Multi-camera modules are mainly used for pixel enhancement, panoramic deep shooting, larger HDR, dark state boost, and more.
  • a dual camera module will be taken as an example for specific description.
  • the dual-camera module of different size apertures comprises two circuit board substrates 10', a monochrome camera module 20', a color camera module 30', and two connection units 40'.
  • the monochrome camera module 20' and the color camera module 30' are respectively fixed to the two circuit board substrates 10' to ensure that the relative positions of the two camera modules are not displaced, thereby ensuring
  • the dual-camera modules of different size apertures do not misalign when being mounted to the electronic device.
  • FIG. 5 it is a front perspective view of the dual camera module, which is configured with two of the camera modules. 6 and 7 are respectively left and right views of the dual camera module, and FIG. 8 is a schematic view of the bottom structure of the dual camera module.
  • the bottom side of the circuit board substrate 10' may have a reinforcing plate such as a copper plate, thereby While reinforcing, it can enhance heat dissipation.
  • each of the camera modules may be a fixed focus camera module or an auto focus camera module with a drive motor, and the invention is not limited.
  • the monochrome camera module 20' includes a lens and a monochrome sensor chip (black and white sensor chip), and the color camera module 30' includes a lens and a color sensor chip.
  • the dual camera module is connected to the electronic device via the connecting unit 40' such as a flexible circuit board. That is, the color sensor chip corresponds to the color camera module 30', and the monochrome sensor chip corresponds to the monochrome camera module 20', so that the dual camera module using the different size apertures is used.
  • the color sensor chip is matched with the image taken by the lens of the color camera module 30 ′ or the image as a reference image, and the monochrome photosensitive chip is matched with the monochrome camera.
  • the image or the image captured by the lens of the module 20' is used as image processing auxiliary information, and finally synthesized to obtain a synthetic image with better definition.
  • the color sensor chip is matched with the color camera module 30' as a main camera, and its function is shooting.
  • the monochrome photosensitive chip is matched with the monochrome camera module 20' as an auxiliary camera, and its function is to provide auxiliary image information.
  • the dual camera module of different size apertures synthesizes the reference image and the image processing auxiliary information through an algorithm to obtain the synthesized image, thereby ensuring The final image or the quality of the image.
  • the color aperture of the color camera module 30 ′ and the monochrome camera module 20 ′ are different, that is, the dual camera modules of the different size apertures of the present invention are two different The combination of the size and aperture of the camera module, wherein the aperture of the lens corresponding to the monochrome camera module is made larger under the image consistency of the camera modules of the two different size apertures to enhance the invention Said The dark state effect of the dual camera module with different apertures.
  • the large aperture can ensure that the monochrome camera module has a stable and sufficient amount of light at any time, and can achieve good imaging effects in low light conditions, and can also perform background blurring. Special handling, etc.
  • the color camera module 30' is provided with a color ray filter, and correspondingly, the color sensor chip is only sensitive to colored light, so that some details are lost.
  • the aperture of the monochrome camera module of the present invention is increased, so that the amount of light entering per unit time is increased, because the monochrome photosensitive chip does not need to consider the color of the light, so that the monochrome photosensitive chip can be more abundantly captured from the scene.
  • the details It is these details that make the final composite image clearer and the dark state effect is significantly enhanced.
  • the two connection units 40' are respectively implemented as a flexible circuit board (FPC), one end of which is connected to the two circuit board substrates 10' of the dual camera module (which may be PCB rigid) a circuit board), the other end of the flexible circuit board is connected to the control board of the electronic device, in other words, the connecting unit 40' is configured to connect the circuit board to which the monochrome camera module 20' is fixed a substrate 10', another connecting unit 40' for connecting the circuit board substrate 10' to which the color camera module 30' is fixed, and the two connecting units 40' are respectively connected to the electronic device Control the motherboard. That is, the two connection units 40' are respectively connected between the two circuit board substrates 10' and the control board of the electronic device.
  • FPC flexible circuit board
  • the image information captured by the color camera module 30' and the monochrome camera module 20' can be transmitted to the control board of the electronic device and synthesized to obtain a final composite image.
  • the color sensor chip can be implemented as an RGB (Red-Green-Blue) or RGBW Red-Green-Blu-White chip.
  • the monochromatic photosensitive chip is implemented as a MONO (monochrome) chip.
  • the lens aperture of the monochrome camera module 20' and the aperture coefficient Fno of the lens aperture of the color camera module 30' can be implemented as 1.9 and Fno2.0, respectively.
  • the aperture coefficient Fno here is the ratio of the focal length of the camera module to the effective aperture. The smaller the value, the larger the aperture aperture.
  • the lens aperture of the monochrome camera module 20' is 1.9, the lens aperture 2.0 of the color camera module 30', such that the monochrome imaging mode adopts a larger aperture.
  • the group 20' is taken by the monochrome photosensitive chip to obtain more gradation information. It is worth mentioning that such numerical combinations are by way of example only and not limiting of the invention.
  • the combination of the lens aperture of the monochrome camera module 20 ′ and the lens aperture of the color camera module 30 ′ may be implemented as 1.8 and 1.9, respectively; or the monochrome camera
  • the aperture of the lens aperture of the module 20' and the aperture of the lens aperture of the color camera module 30' may be implemented as 2.0 and 2.2, respectively.
  • the present invention also provides an image synthesizing method for a multi-camera module having apertures of different sizes, which includes the following steps:
  • the image is captured by the color camera module 30 ′ and the monochrome camera module 20 ′ of the multi-camera module, wherein the monochrome camera module 20 ′ has a comparison with the color camera module.
  • the processed image after processing is stored or stored.
  • the multi-camera module is implemented as a dual camera module configured as a color camera module 30' having the color sensor chip and the monochrome camera module 20' having the monochrome sensor chip. It is worth mentioning that the color aperture of the color camera module 30 ′ and the monochrome camera module 20 ′ are different. In particular, although the lens apertures of the two camera modules are different, the two camera modes are different. The images or images taken by the groups are consistent, so that the dark state effect is enhanced by the dual-camera modules having different apertures of the same pixels.
  • the monochrome camera module 20' adopts a larger lens aperture, and the monochrome photosensitive chip can obtain more grayscale information, so that the final image of the dual-camera module of the different size apertures can be further improved. Good darkness effect and clarity.
  • the image taken by the color camera module 30' having the color sensor chip serves as a reference image.
  • An image taken by the monochrome camera module 20' having the monochrome photosensitive chip is used as an image processing auxiliary information.
  • the reference image is processed by applying auxiliary information in the image, wherein the image synthesis is a method of stitching a picture.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Cameras In General (AREA)

Abstract

La présente invention concerne un module à caméras multiples avec des diaphragmes de différentes tailles, tel qu'un module à double caméra comprenant un module de caméra noir et blanc et un module de caméra couleur. Le module de caméra noir et blanc possède un diaphragme de lentille plus grand par rapport au module de caméra couleur, de telle sorte que le module à double caméra avec des diaphragmes de différentes tailles permet un bon effet d'état sombre.
PCT/CN2017/096519 2016-08-10 2017-08-09 Module multicaméra à diaphragmes de tailles différentes, et application associée WO2018028585A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610662634.2A CN107734214A (zh) 2016-08-10 2016-08-10 具有不同大小光圈的多摄像头模组及其应用
CN201620865436.1U CN205961281U (zh) 2016-08-10 2016-08-10 具有不同大小光圈的双摄模组
CN201610662634.2 2016-08-10
CN201620865436.1 2016-08-10

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WO2018028585A1 true WO2018028585A1 (fr) 2018-02-15

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CN102959941A (zh) * 2010-07-02 2013-03-06 索尼电脑娱乐公司 信息处理系统、信息处理装置及信息处理方法
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Publication number Priority date Publication date Assignee Title
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