WO2016061779A1

WO2016061779A1 - Image capturing method and apparatus

Info

Publication number: WO2016061779A1
Application number: PCT/CN2014/089262
Authority: WO
Inventors: 唐小川
Original assignee: 华为技术有限公司
Priority date: 2014-10-23
Filing date: 2014-10-23
Publication date: 2016-04-28
Also published as: CN105900007A

Abstract

An image capturing apparatus comprises an optical filter (1), an optical lens (2), a voice coil motor (3), and a light-sensitive sensor (4). The optical lens (2) and the light-sensitive sensor (4) are accommodated in the voice coil motor (3). The light-sensitive sensor (4) is fixedly disposed at one end of the voice coil motor (3). The optical lens (2) is slidably connected in the voice coil motor (3) along a vertical direction. The optical filter (1) is disposed at the front end of the optical lens (2), so that light is firstly filtered by the optical filter (1) and becomes preset light, the preset light passes through the optical lens (2) and then is focused on the light-sensitive sensor (4), so as to generate a target image. Because the optical filter (1) is disposed at the front end of the optical lens (2), the image quality can be improved.

Description

Image shooting method and device

Technical field

The present invention relates to the field of image processing, and in particular, to an image capturing method and apparatus.

Background technique

The camera in a terminal device such as a mobile phone generally adopts a Compact Camera Module (CCM), and the commonly used CCM includes an optical lens (Lens), a voice coil motor (VCM), a photo sensor (Image Sensor), and an infrared camera. (Infrared Ray, IR) Filter. In the existing CCM, the IR filter is between the optical lens and the photosensitive sensor, and the light will be refracted and reflected when transmitted to the IR filter, resulting in glare and ghosting in the captured image, which reduces image quality. .

Summary of the invention

The embodiment of the invention discloses an image capturing method and device for improving image quality.

A first aspect of an embodiment of the present invention discloses an image capturing apparatus, the apparatus comprising a filter, an optical lens, a voice coil motor, and a photosensitive sensor, wherein:

The optical lens and the photosensitive sensor are housed in the voice coil motor, the photosensitive sensor is fixed to one end of the voice coil motor, and the optical lens is slidably connected to the voice coil motor in a vertical direction And the optical lens is disposed opposite to the photosensitive sensor, the filter is disposed at an end of the voice coil motor away from the photosensitive sensor, and the filter is disposed opposite to the optical lens. The filter is configured to filter out light in the light other than the preset light, the optical lens is used to focus the preset light to the photosensitive sensor, and the photosensitive sensor is used to preset light according to the focus A target image is generated, the voice coil motor for controlling the optical lens to slide relative to the photosensitive sensor to adjust the sharpness of the target image.

With reference to the first aspect of the embodiments of the present invention, in a first possible implementation manner of the first aspect of the embodiments, the device further includes a casing, the voice coil motor is fixedly connected to the casing, and the filter Provided on the outer casing.

In conjunction with the first possible implementation manner of the first aspect of the embodiment of the present invention, in a second possible implementation manner of the first aspect of the embodiment, the device is provided with a card slot, and the card slot is disposed on the Place The relative position of the optical lens, the filter is slidably connected in the card slot.

In a third possible implementation manner of the first aspect of the embodiment of the present invention, in combination with the first aspect of the first embodiment of the present invention and the first and second possible implementation manners of the first aspect of the present invention The filter includes at least two filter regions, and each of the filter regions corresponds to a predetermined light.

With reference to the third possible implementation manner of the first aspect of the embodiment of the present invention, in a fourth possible implementation manner of the first aspect of the embodiment of the present invention, when the filter includes two filter regions, The preset light corresponding to a filter region is visible light, and the preset light corresponding to the second filter region is infrared light.

With reference to the fourth possible implementation manner of the first aspect of the embodiment of the present invention, in a fifth possible implementation manner of the first aspect of the embodiment, the visible light has a wavelength of 350 nm to 650 nm.

With reference to the fourth possible implementation manner of the first aspect of the embodiments of the present invention, in a sixth possible implementation manner of the first aspect of the embodiments, the wavelength of the infrared light is greater than 650 nm.

A second aspect of the embodiments of the present invention discloses an image capturing method, including:

The filter filters out light in the light other than the preset light;

The optical lens focuses the predetermined light;

The photosensitive sensor generates a target image according to the preset preset light;

A voice coil motor controls the optical lens to focus to adjust the sharpness of the target image.

With reference to the second aspect of the embodiments of the present invention, in a first possible implementation manner of the second aspect of the embodiments, the filter includes at least two filter regions, and each filter region corresponds to a preset ray. different.

With reference to the first possible implementation manner of the second aspect of the embodiment of the present invention, in a second possible implementation manner of the second aspect of the embodiment of the present invention, when the filter includes two filter regions, The preset light corresponding to a filter region is visible light, and the preset light corresponding to the second filter region is infrared light.

With reference to the second possible implementation of the second aspect of the embodiment of the present invention, in a third possible implementation manner of the second aspect of the embodiment, the visible light has a wavelength of 350 nm to 650 nm.

With reference to the second possible implementation of the second aspect of the embodiment of the present invention, in a fourth possible implementation manner of the second aspect of the embodiment, the wavelength of the infrared light is greater than 650 nm.

In the embodiment of the present invention, before the light enters the voice coil motor, the light other than the preset light is filtered by the filter to prevent the light from affecting the image, thereby improving the image quality.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor.

1 is a perspective view of an image capturing apparatus according to an embodiment of the present invention;

Figure 2 is a cross-sectional view taken along line I of Figure 1;

Figure 3 is a front elevational view of Figure 1;

FIG. 4 is a flowchart of an image capturing method disclosed in an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the invention discloses an image capturing method and device for improving image quality. The details are described below separately.

Please refer to FIG. 1. FIG. 1 is a perspective view of an image capturing apparatus according to an embodiment of the present invention. As shown in FIG. 1, the image capturing apparatus may include a filter 1, an optical lens 2, a voice coil motor 3, and a photosensitive sensor 4, wherein:

The optical lens 2 and the photosensitive sensor 4 are housed in the voice coil motor 3, the photosensitive sensor 4 is fixed at one end of the voice coil motor 3, and the optical lens 2 is slidably coupled to the voice coil motor 3 in the vertical direction, and the optical lens 2 is sensitized The sensor 4 is oppositely disposed. The filter 1 is disposed at an end of the voice coil motor 3 away from the photosensitive sensor 4, and the filter 1 is disposed opposite to the optical lens 2. The filter 1 is used to filter out the light except the preset light. Outside the light, the optical lens 2 is used to focus the preset light to the photosensitive sensor 4, the photosensitive sensor 4 is used to generate a target image according to the focused preset light, and the voice coil motor 3 is used to control the optical lens 2 to slide relative to the photosensitive sensor 4 Adjust the sharpness of the target image.

In the present embodiment, the filter 1 is disposed outside the voice coil motor 3 to ensure the light entering the voice coil motor 3 The lines are all preset light. After the preset light enters the voice coil motor 3, it is first focused on the photosensitive sensor 4 through the optical lens 2, and then the photosensitive sensor 4 generates a target image according to the focused preset light. Since the distance between the optical lens 2 and the photosensitive sensor 4 is different, the definition of the target image is different. Therefore, the optical lens 2 can be controlled to slide up and down with respect to the voice coil motor 3 by the voice coil motor 3 to adjust the optical lens 2 and the photosensitive sensor 4. The distance between them to adjust the sharpness of the target image. Among them, the voice coil motor 3 is a hollow columnar body, and the thickness of the voice coil motor is not shown in FIG.

As a possible implementation manner, as shown in FIG. 1 , the image capturing apparatus may further include a casing 5 , and the voice coil motor 3 is fixedly connected to the casing 5 , and the filter 1 is disposed on the casing 5 .

In this embodiment, the voice coil motor 3 can be fixedly connected to the outer casing 5 by means of assembly, and can also be fixedly connected by other means, which is not limited in this embodiment.

As shown in FIG. 1 , the housing 5 is provided with a card slot 6 , and the card slot 6 is disposed at a relative position of the optical lens 2 , and the filter 1 is slidably connected to the card slot 6 .

As a possible implementation manner, the filter 1 may include at least two filter regions, each of which corresponds to a predetermined light ray.

In this embodiment, the filter has a plurality of filter areas for the user to select, so that the user can take images of different effects, thereby improving the user experience.

As a possible implementation manner, when the filter 1 includes two filter regions, the preset light corresponding to the first filter region is visible light, and the preset light corresponding to the second filter region is infrared light.

As a possible embodiment, the wavelength of visible light is from 350 nm to 650 nm.

As a possible implementation, the wavelength of the infrared light is greater than 650 nm.

2 is a cross-sectional view taken along line I of FIG. 1. As shown in FIG. 2, the image capturing apparatus may further include a limiting member 7, wherein the limiting member 7 is fixed to the inner wall of the voice coil motor 3, and the optical lens 2 is limited. The voice coil motor 3 slides in the range of the position member 7. 3 is a front view of FIG. 1. As shown in FIG. 3, the edge of the card slot 6 is fixed with a buckle to prevent the filter 1 from falling from the card slot 6.

In the image capturing apparatus described in FIG. 1, before the light enters the voice coil motor, the light is filtered out by the filter to remove the light other than the preset light, thereby preventing the light from affecting the image, thereby improving the image quality; The light sheet includes a plurality of filter areas, and each of the filter areas passes different preset lights. Therefore, the user can use different preset lights to take images of different effects, thereby improving the user experience.

Please refer to FIG. 4. FIG. 4 is a flowchart of an image capturing method according to an embodiment of the present invention. As shown in FIG. 4, the image capturing method may include the following steps.

S401. The filter filters out light in the light other than the preset light.

As a possible implementation manner, the filter may include at least two filter regions, and each of the filter regions has a predetermined preset light.

As a possible implementation manner, when the filter includes two filter regions, the preset light corresponding to the first filter region is visible light, and the preset light corresponding to the second filter region is infrared light.

S402. The optical lens focuses on the preset light.

S403. The photosensitive sensor generates a target image according to the focused preset light.

S404. The voice coil motor controls the optical lens to focus to adjust the sharpness of the target image.

In the image capturing method described in FIG. 4, before the light enters the voice coil motor, the light is filtered through the filter to remove the light other than the preset light, thereby preventing the light from affecting the image, thereby improving the image quality; The light sheet includes a plurality of filter areas, and each of the filter areas passes different preset lights. Therefore, the user can use different preset lights to take images of different effects, thereby improving the user experience.

The image capturing method and apparatus disclosed in the embodiments of the present invention are described in detail above. The principles and embodiments of the present invention are described in the following. The description of the above embodiments is only for helping to understand the method of the present invention. At the same time, there will be changes in the specific embodiments and application scopes according to the idea of the present invention, and the contents of the present specification should not be construed as being limit.

Claims

An image capturing apparatus comprising a filter, an optical lens, a voice coil motor, and a photosensitive sensor, wherein:

The optical lens and the photosensitive sensor are housed in the voice coil motor, the photosensitive sensor is fixed to one end of the voice coil motor, and the optical lens is slidably connected to the voice coil motor in a vertical direction And the optical lens is disposed opposite to the photosensitive sensor, the filter is disposed at an end of the voice coil motor away from the photosensitive sensor, and the filter is disposed opposite to the optical lens. The filter is configured to filter out light in the light other than the preset light, the optical lens is used to focus the preset light to the photosensitive sensor, and the photosensitive sensor is used to preset light according to the focus A target image is generated, the voice coil motor for controlling the optical lens to slide relative to the photosensitive sensor to adjust the sharpness of the target image.
The device according to claim 1, further comprising a housing, said voice coil motor being fixedly coupled to said housing, said filter being disposed on said housing.
The device according to claim 2, wherein the housing is provided with a card slot, the card slot is disposed at a relative position of the optical lens, and the filter is slidably coupled to the card slot.
The device according to any one of claims 1 to 3, wherein the filter comprises at least two filter regions, each filter region corresponding to a predetermined light ray being different.
The device according to claim 4, wherein when the filter comprises two filter regions, the preset light corresponding to the first filter region is visible light, and the predetermined light corresponding to the second filter region For infrared light.
The device according to claim 5, wherein said visible light has a wavelength of from 350 nm to 650 nm.
The device of claim 5 wherein said infrared light has a wavelength greater than 650 nm.
An image capturing method, comprising:

The filter filters out light in the light other than the preset light;

The optical lens focuses the predetermined light;

The photosensitive sensor generates a target image according to the preset preset light;

A voice coil motor controls the optical lens to focus to adjust the sharpness of the target image.
The method of claim 8 wherein said filter comprises at least two filter regions, each filter region having a different predetermined ray.
The method according to claim 9, wherein when the filter comprises two filter regions, the preset light corresponding to the first filter region is visible light, and the predetermined light corresponding to the second filter region For infrared light.
The method of claim 10 wherein said visible light has a wavelength of from 350 nm to 650 nm.
The method of claim 10 wherein said infrared light has a wavelength greater than 650 nm.