CN115604555A - Optical module, imaging device, and image generation method - Google Patents
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Abstract
The invention discloses an optical assembly, an imaging device and an image generation method, and relates to the technical field of imaging. The optical assembly comprises a lens, at least three sensors and an image processing module; the sensor is positioned below the lens along the thickness direction, and the sensors are not overlapped with each other; the sensor is used for acquiring light rays penetrating through the lens and generating corresponding sub-images; the sensors are electrically connected with the image processing module; and the image processing module is used for generating the target image from the sub-images generated by the plurality of sensors. The embodiment provided by the invention is provided with the plurality of sensors, so that the total acquisition quantity of the light rays reflected by the shot object is improved. Meanwhile, an image processing module electrically connected with the plurality of sensors is also arranged and used for generating a target image from the sub-image generated by each sensor. The target image is formed by overlapping a plurality of sub-images, so that the resolution and the definition of the target image can be improved, and the imaging effect is improved.
Description
Technical Field
The present invention relates to the field of imaging technologies, and in particular, to an optical assembly, an imaging device, and an image generation method.
Background
Along with the promotion of user's demand, the screen to the cell-phone accounts for than the requirement more and more high, and each big cell-phone manufacturer is also constantly pursuing the more extremely full screen, and water droplet screen, bang screen, the screen of punching, lift full screen etc. are also in the turn of taking place. However, from a structural point of view, the under-screen camera should be the best solution for the full screen era.
In the related art, the under-screen camera is limited by the structures of the display screen, such as the polarizer, the TFT, the CF, the organic light emitting layer, the touch layer, and the like, to absorb and reflect the incident light. The camera obtains the effect poor to light under the screen, and then leads to the formation of image effect poor.
Disclosure of Invention
In view of the above, the present invention provides an optical assembly, an imaging device and an image generating method, which can improve an imaging effect.
In a first aspect, the present invention provides an optical assembly comprising: the system comprises a lens, at least three sensors and an image processing module;
the sensor is positioned below the lens along the thickness direction, and the sensors are not overlapped with each other;
the sensor is used for acquiring the light penetrating through the lens and generating a corresponding sub-image;
the sensors are all electrically connected with the image processing module;
the image processing module is used for generating a target image from the sub-images generated by the plurality of sensors.
In a second aspect, the present invention provides an imaging device comprising the optical assembly provided by the first aspect of the present invention.
In a third aspect, the present invention provides an image generating method, the optical assembly comprising a lens, at least three sensors and an image processing module;
the image generation method comprises the following steps:
the sensor acquires light rays penetrating through the lens and generates corresponding sub-images;
the image processing module generates a target image from the sub-images generated by the plurality of sensors.
Compared with the prior art, the optical component, the imaging device and the image generation method provided by the invention at least realize the following beneficial effects:
the embodiment provided by the invention is provided with the plurality of sensors, so that the total acquisition quantity of the light rays reflected by the shot object is improved. Meanwhile, an image processing module electrically connected with the plurality of sensors is also arranged and used for generating a target image from the sub-image generated by each sensor. The target image is formed by overlapping a plurality of sub-images, so that the resolution and the definition of the target image can be improved, and the imaging effect is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of an optical assembly according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another optical assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another optical assembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another optical assembly provided in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another optical assembly provided in an embodiment of the present invention;
FIG. 7 is a top view of an imaging device according to an embodiment of the invention;
FIG. 8 is a flowchart of an image generation method according to an embodiment of the present invention;
FIG. 9 is a flow chart of another method for generating an image according to an embodiment of the present invention;
fig. 10 is a flowchart of another image generation method according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the related art, the under-screen camera is limited by various structures of the display screen, such as a polarizer, a TFT, a CF, an organic light emitting layer, a touch layer, and the like, to absorb and reflect incident light. The camera obtains the effect poor to light under the screen, and then leads to the formation of image effect poor.
To solve the above technical problems, an optical assembly according to an embodiment of the present invention is provided, and is shown in fig. 1 and fig. 2, where fig. 1 is a schematic structural diagram of an optical assembly according to an embodiment of the present invention, and fig. 2 is a schematic composition diagram of an optical assembly according to an embodiment of the present invention. An embodiment of the present invention provides an optical assembly, including: a lens 10, at least three sensors 20 and an image processing module 30;
the sensor 20 is positioned below the lens 10 along the thickness direction x, and the plurality of sensors 20 are not overlapped with each other;
a sensor 20 for acquiring light transmitted through the lens 10 and generating corresponding sub-images;
the plurality of sensors 20 are all electrically connected with the image processing module 30;
and an image processing module 30 for generating the target image from the sub-images generated by the plurality of sensors 20.
It is understood that the lens 10 is used to project the light reflected from the object onto the sensor 20 after being refracted and focused. Further, images with different depths of field and different viewing angles can be formed by using the difference between the aperture size and the focal length of the lens 10. The sensor 20, specifically, an image sensor, converts the light image projected onto the light-sensing surface of the sensor 20 by the lens 10 into an electrical signal in a corresponding proportional relationship with the light image by using the photoelectric conversion function of the photoelectric device, and generates a corresponding sub-image according to the electrical signal. The image sensor has the characteristics of small volume, light weight, high integration level, high resolution, low power consumption, long service life, low price and the like. The present invention is widely used in display devices, imaging devices, and the like.
Further, the plurality of sensors 20 are located below the lens 10 in the thickness direction x, and the plurality of sensors 20 do not overlap each other in the thickness direction x. Any one of the sensors 20 can acquire the light transmitted by the lens 10 and generate corresponding sub-images, respectively.
Further, the plurality of sensors 20 are all electrically connected to the image processing module 30, the image processing module 30 is integrated on a chip, and the positional relationship between the image processing module 30 and the lens 10 and the position relationship between the image processing module 30 and the sensors 20 are not limited in the embodiment of the present invention, as long as each sensor 20 can be electrically connected to the image processing module 30, and the sensors 20 can perform data transmission with the image processing module 30.
Further, the image processing module 30 is configured to receive the sub-images generated by the plurality of sensors 20 and generate the target image from the plurality of sub-images. In particular, the sub-images generated by the sensor 20 may be monochrome or color images, and may include different picture content. The image processing module 30 generates a full color target image from a plurality of sub-images of different colors and/or different picture contents. By superimposing a plurality of sub-images generated by the plurality of sensors 20 to generate one target image, the resolution and definition of the target image can be improved, and the imaging effect can be improved.
In an alternative embodiment provided by the present invention, referring to fig. 3, fig. 3 is a schematic composition diagram of another optical assembly provided by the embodiment of the present invention. The sensor 20 at least comprises a red camera 21, a green camera 22 and a blue camera 23;
a red camera 21, configured to obtain red light passing through the lens 10 and generate a corresponding red sub-image;
a green camera 22 for acquiring green light transmitted through the lens 10 and generating a corresponding green sub-image;
and a blue camera 23 for acquiring blue light transmitted through the lens 10 and generating a corresponding blue sub-image.
It is understood that the plurality of sensors 20 provided in the present embodiment includes at least a red camera 21, a green camera 22, and a blue camera 23. Specifically, the red camera 21 can acquire red light rays among light rays reflected by the subject and generate a corresponding red image. The green camera 22 can acquire a green light ray among light rays reflected by the subject and generate a corresponding green image. The blue camera 23 can acquire blue light rays among light rays reflected by the subject and generate a corresponding blue image.
It will be appreciated that red, green and blue are the three primary colors of color, and that the superposition of red, green and blue in different proportions can produce different colors. Illustratively, a 1-for-1 superposition of red and blue can result in yellow, and a 1-for-1 superposition of red and blue can result in violet. Meanwhile, red, green and blue can also have different brightness and can be classified into 256 levels. Where 0 represents the luminance of 0% and 255 represents the luminance of 100%.
Therefore, the at least three sensors 20 of the present embodiment respectively employ a red camera 21, a green camera 22, and a blue camera 23. The sub-images of the three different colors generated by the sensors 20 of the three different colors can be acquired.
Further, the red camera 21, the green camera 22, and the blue camera 23 respectively send the generated red sub-image, green sub-image, and blue sub-image to the image processing module 30, and the image processing module 30 superimposes the red sub-image, green sub-image, and blue sub-image by a preset algorithm to generate a target image, which may be any color.
In the prior art, if only one sensor 20 is provided, only the colored sensor 20 can be provided, and the colored sensor includes a red sub-sensor, a green sub-sensor and a blue word sensor. According to the embodiment of the invention, the sensor 20 is directly arranged into the red camera 21, the green camera 22 and the blue camera 23, so that the receiving area of the sensor 20 is increased, and the imaging effect is improved.
In an alternative embodiment provided by the present invention, referring to fig. 4, fig. 4 is a schematic composition diagram of another optical assembly provided by the embodiment of the present invention. The sensors 20 are all color cameras 24;
and a color camera 24 for acquiring the color light transmitted through the lens 10 and generating a corresponding color sub-image.
It is understood that the sensors 20 in the present embodiment are all color cameras 24. That is, any one of the sensors 20 can acquire light rays of each color from among the light rays reflected by the subject and generate a color sub-image.
However, since the plurality of sensors 20 are each located below the lens 10 in the thickness direction x, and do not overlap with each other. Therefore, the plurality of sensors 20 overlap with a plurality of portions of the lens 10 in the thickness direction x. Since the thicknesses of the respective portions of the lens 10 are different, the refraction and focusing effects on the light are also different. The intensity and color of the light acquired by the multiple color cameras 24 are also not exactly the same, because the corresponding generated color sub-images are also not exactly the same. Specifically, the colors may be different, or the screen contents may be different.
The plurality of color cameras 24 send the correspondingly generated color sub-images to the image processing module 30. The image processing module 30 superimposes the plurality of color sub-images according to a preset algorithm. Although the plurality of sub-images are color images, the color or brightness of each color image is not completely the same, or the picture content of each color image is not completely the same. Therefore, the target image obtained by superposition can more completely display the picture of the whole shot object image and can ensure that the color of the target image is more real.
In an alternative embodiment provided by the present invention, referring to fig. 5, fig. 5 is a schematic structural diagram of another optical assembly provided by the embodiment of the present invention. The lens 10 includes at least three;
along the thickness direction x, the plurality of lenses 10 do not overlap each other, and the same lens 10 overlaps at least one sensor 20.
It is understood that, in the embodiment of the present invention, the lens 10 includes a plurality of lenses, specifically, at least three lenses. The number of the lenses 10 is the same as that of the sensors 20, and the plurality of lenses 10 do not overlap each other in the thickness direction x, but correspond to the sensors 20.
In the embodiment of the present invention, the light obtained by each sensor 20 mainly comes from the light refracted and focused by the lens 10 opposite to the light. Therefore, at least three lenses 10 are provided, each lens 10 overlapping one sensor 20. Each sensor 20 acquires light refracted, focused by its corresponding lens 10 and generates a sub-image. The technical problem that due to the fact that a plurality of sensors 20 correspond to one lens 10, the relative position of each sensor 20 and the lens 10 is different, and therefore the light quantity difference obtained by each sensor 20 is large is solved, and the imaging effect is improved.
In an alternative embodiment of the present invention, and with continued reference to FIG. 5, the optical axes of the plurality of lenses 10 are parallel to one another.
It is understood that the optical axes of the plurality of lenses 10 are parallel to each other, in other words, the plurality of lenses 10 are located on the same horizontal plane. Therefore, the total area of the lens 10 can be increased, the obtained light quantity can be guaranteed, and the integrity of the obtained picture can be further guaranteed.
Further, the light reflected by the subject acquired by each sensor 20 is different, and the corresponding generated picture content may be different. For example, when the object is a tree, the lenses 10 shown in fig. 5 can capture the light reflected by the tree. Meanwhile, the lens 10 located at the upper side among the plurality of lenses 10 may acquire light reflected from the sky, and the lens 10 located at the lower side may acquire an image reflected from the earth, and thus, when the sensor 20 in the embodiment of the present invention is the color camera 24, the picture content acquired by each sensor 20 is different. After the sub-images with different image contents are sent to the image processing module 30, the image processing module 30 superimposes the plurality of sub-images through a preset algorithm, and the obtained image content of the target image includes the image contents of the plurality of sub-images, in the above example, the corresponding target image includes both the tree and the sky and the ground. Therefore, the picture content of the target image can be more complete, and the imaging effect is improved.
In an alternative embodiment provided by the present invention, referring to fig. 6, fig. 6 is a schematic structural diagram of another optical assembly provided in the embodiment of the present invention. The optical axes of at least two lenses 10 intersect.
It is understood that in the embodiment of the present invention, the optical axes of at least two lenses 10 intersect. Illustratively, referring to fig. 6, the optical axes of the plurality of lenses 10 all intersect. In other words, when the optical axes of at least two lenses 10 intersect, at least one lens 10 is disposed obliquely with reference to the thickness direction x.
Further, the direction of the optical axis of the lens 10 may be set according to the arrangement of the plurality of lenses 10. Referring to fig. 6, when three lenses 10 are longitudinally arranged, the light transmission axis of the lens 10 positioned in the middle may be disposed parallel to the thickness direction x, and the lenses 10 positioned at both sides may be inclined toward the lens 10 positioned in the middle at the same inclination angle. Thus, the light transmission axes of the lenses 10 positioned at both sides respectively have the same angle with the light transmission axis of the lens 10 positioned in the middle. In another embodiment, the lens 10 includes a plurality of lenses, one lens 10 is located in the middle, and the other lenses 10 are arranged around the lens 10. The light transmission axis of the lens 10 located in the middle is parallel to the thickness direction x, and the other lenses 10 are all inclined to the symmetric center at the same angle, so that the light transmission axis of the lens 10 located outside and the light transmission axis of the lens 10 located in the middle all intersect at the same included angle.
It should be noted that, when the sensor is a red camera 21, a green camera 22, or a blue camera 23, the red camera 21, the green camera 22, and the blue camera 23 respectively acquire light passing through the lens 10 to generate corresponding red sub-image, green sub-image, and blue sub-image, and 3 sends the red sub-image, the green sub-image, and the blue sub-image to the image processing module 30. The image processing module 30 performs a superposition process on the red sub-image, the green sub-image and the blue sub-image according to a preset algorithm, wherein a part which is still a single color after superposition is cut off to ensure that the target image is a color image.
Therefore, in the embodiment of the present invention, the optical axes of at least the lenses 10 intersect, which can improve the overlapping degree of the picture contents of the sub-images acquired by the adjacent sensors 20. The clipping of the sub-image in the process of generating the target image by the image processing module 30 is reduced, and the imaging efficiency is improved.
Based on the same inventive concept, the invention further provides an imaging device, and fig. 7 is a top view of the imaging device provided by the embodiment of the invention. The imaging device comprises the optical assembly of any of the embodiments described above.
Fig. 7 shows only one position of the lens 10 on the imaging device, and in some other embodiments of the present invention, the lens 10 may be disposed at other positions of the imaging device. Meanwhile, fig. 7 shows that the number of lenses is only one. In some other embodiments of the present invention, the lens may further include at least a plurality.
The imaging device provided by the embodiment of the invention can be any electronic equipment with a shooting function, such as a camera, a mobile phone with a shooting function, a notebook computer and the like. The imaging device provided in the embodiment of the present invention has the beneficial effects of the optical component provided in the embodiment of the present invention, and specific reference may be made to the specific description of the optical component in each embodiment above, and this embodiment is not described herein again.
Based on the same inventive concept, the present invention further provides an image generation method, as shown in fig. 8, fig. 8 is a flowchart of an image generation method provided by an embodiment of the present invention, and the optical assembly includes a lens 10, at least three sensors 20, and an image processing module 30. The method comprises the following steps:
s10, the sensor 20 acquires light rays penetrating through the lens 10 and generates corresponding sub-images;
s20, the image processing module 30 generates the target image from the sub-images generated by the plurality of sensors 20.
It will be appreciated that the sensor 20 comprises a plurality, in particular at least three. The plurality of sensors 20 are each capable of capturing light transmitted through the lens 10 and generating corresponding sub-images. It should be noted that the sub-image generated by the sensor 20 may be a monochrome or color image, and may include different picture contents.
The sensors 20 send the sub-images to the image processing module 30, and the image processing module 30 generates the target image from the sub-images generated by the plurality of sensors 20. Specifically, the image processing module 30 performs a superposition process on the plurality of sub-images according to a preset algorithm to obtain a target image.
In the image generation method provided by the embodiment of the invention, by arranging at least three sensors, the acquisition amount of the light rays by the sensor 20 can be increased, and the imaging effect is improved.
In an alternative embodiment provided by the present invention, referring to fig. 9, fig. 9 is a flowchart of another image generation method provided by the embodiment of the present invention, and the sensor 20 at least includes a red camera 21, a green camera 22, and a blue camera 23. The method comprises the following steps:
s11, the red camera 21 acquires red light rays penetrating through the lens 10 and generates corresponding red sub-images;
s12, the green camera 22 acquires the green light which passes through the lens 10 and generates a corresponding green sub-image;
s13, the blue camera 23 acquires blue light rays penetrating through the lens 10 and generates corresponding blue sub-images;
s21, the image processing module 30 generates a target image from the red sub-image, the green sub-image and the blue sub-image, where the target image is a color image.
It will be appreciated that the sensor 20 comprises at least three, and may comprise a red camera 21, a green camera 22 and a blue camera 23 respectively. S11, S12 and S13 may be performed simultaneously. After the light reflected by the subject enters the lens 10, the red camera 21, the green camera 22, and the blue camera 23 perform S11, S12, and S13, respectively. The red, green and blue sub-images are obtained and sent to the image processing module 30.
The image processing module 30 superimposes the red sub-image, the green sub-image, and the blue sub-image according to a preset algorithm, and cuts off a portion which is still monochrome after the superimposition to obtain a color target image.
In the image generation method provided by the embodiment of the invention, three monochromatic sensors capable of acquiring different colors are arranged, so that the acquisition amount of light rays by each sensor can be increased, and the display effect is improved.
In an alternative embodiment provided by the present invention, referring to fig. 10, fig. 10 is a flowchart of another image generation method provided by the embodiment of the present invention, and the sensors 20 are all color cameras 24. The method comprises the following steps:
s14, the plurality of color cameras 24 respectively acquire color light rays penetrating through the lens 10 and generate corresponding color sub-images;
s22, the image processing module 30 generates a target image from the plurality of color sub-images, where the target image is a color image.
It is understood that the sensor 20 includes at least three, and all color cameras 24. Each color camera 24 captures color light through the lens 10 and generates a corresponding color sub-image, and then sends the color sub-images to the image processing module 30.
The image processing module 30 superimposes a plurality of color sub-images according to a preset algorithm to obtain a target image, and since the sub-images are colored, the target image is also colored. The color camera 24 is convenient and easy to obtain, does not need customization and is convenient to assemble.
In summary, the optical assembly, the imaging device and the image generating method provided by the invention at least achieve the following beneficial effects:
the embodiment provided by the invention is provided with the plurality of sensors, so that the total acquisition quantity of the light rays reflected by the shot object is improved. Meanwhile, an image processing module electrically connected with the plurality of sensors is also arranged and used for generating a target image from the sub-image generated by each sensor. The target image is formed by overlapping a plurality of sub-images, so that the resolution and the definition of the target image can be improved, and the imaging effect is improved.
Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. An optical assembly, comprising: the system comprises a lens, at least three sensors and an image processing module;
the sensor is positioned below the lens along the thickness direction, and the sensors are not overlapped with each other;
the sensor is used for acquiring the light penetrating through the lens and generating a corresponding sub-image;
the sensors are all electrically connected with the image processing module;
the image processing module is used for generating a target image from the sub-images generated by the plurality of sensors.
2. The optical assembly of claim 1, wherein the sensor comprises at least a red camera, a green camera, and a blue camera;
the red camera is used for acquiring red light rays penetrating through the lens and generating corresponding red sub-images;
the green camera is used for acquiring green light penetrating through the lens and generating a corresponding green sub-image;
the blue camera is used for acquiring the blue light penetrating through the lens and generating a corresponding blue sub-image.
3. The optical assembly of claim 1, wherein the sensors are each a color camera;
the color camera is used for acquiring the color light penetrating through the lens and generating a corresponding color sub-image.
4. The optical assembly of claim 1, wherein the lens includes at least three;
along the thickness direction, a plurality of the camera lenses do not overlap each other, and the same camera lens overlaps with at least one sensor.
5. An optical assembly according to claim 4, wherein the optical axes of a plurality of said lenses are parallel to each other.
6. An optical assembly according to claim 4, wherein the optical axes of at least two of the lenses intersect.
7. An imaging apparatus comprising the optical assembly of any one of claims 1 to 6.
8. An image generation method is characterized in that an optical assembly comprises a lens, at least three sensors and an image processing module;
the image generation method comprises the following steps:
the sensor acquires light rays penetrating through the lens and generates corresponding sub-images;
the image processing module generates a target image from the sub-images generated by the plurality of sensors.
9. The image generation method of claim 8, wherein the sensor comprises at least a red camera, a green camera, and a blue camera;
the image generation method comprises the following steps:
the red camera acquires red light penetrating through the lens and generates a corresponding red sub-image;
the green camera acquires green light penetrating through the lens and generates a corresponding green sub-image;
the blue camera acquires blue light penetrating through the lens and generates a corresponding blue sub-image;
the image processing module generates the target image from the red sub-image, the green sub-image and the blue sub-image, wherein the target image is a color image.
10. The image generation method of claim 8, wherein the sensors are all color cameras;
the image generation method comprises the following steps:
the multiple color cameras respectively acquire the color light rays penetrating through the lens and generate corresponding color sub-images;
the image processing module generates a target image from the plurality of color sub-images, wherein the target image is a color image.
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