CN211457203U

CN211457203U - Binocular camera

Info

Publication number: CN211457203U
Application number: CN201921160253.XU
Authority: CN
Inventors: 杨昆; 章恒师
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-05
Filing date: 2018-11-05
Publication date: 2020-09-08
Anticipated expiration: 2028-11-05
Also published as: CN209390111U; WO2020093693A1

Abstract

A binocular camera comprises a first lens, a second lens, a first wavelength cut-off device, a second wavelength cut-off device, a first sensor, a second sensor and a processor, wherein the first side face of the wavelength cut-off device is arranged opposite to the lens, the second side face of the wavelength cut-off device is arranged opposite to the sensor, the sensor is connected with the processor, light rays are emitted into the sensor through the lens and the wavelength cut-off device in sequence, and the wavelength cut-off device is used for filtering the light rays. The technical scheme is used for respectively filtering 2 paths of light rays entering the sensor through the wavelength cut-off device, so that the problem of chromatic aberration caused by different focusing points of different wavelengths in the light rays is solved, and then the images obtained under all the wavelengths are fused through the processor according to an image fusion algorithm, so that the images which are focused accurately and have no chromatic aberration are obtained under the condition of low illumination, and the shooting definition under the condition of low illumination is improved.

Description

Binocular camera

Technical Field

The utility model relates to the field of optical technology, concretely relates to two mesh cameras.

Background

Video surveillance (cameras and surveillance) is becoming increasingly popular in commercial and civil applications as an important component of security systems, and includes a surveillance camera at the front end, a transmission cable, and a video surveillance platform, wherein the surveillance camera is widely used in various fields to protect the security of the society; in the security field, such as the road traffic, the low-light effect of the monitoring camera under weak light is always the key point of concern for users, and with the development of the security field technology, users require a color image under weak light at present, and the monitoring camera is mainly used for monitoring on remote lightless roads.

In the prior art, there is a camera with fusion of infrared light and visible light, which includes a group of infrared cameras and a group of visible light cameras, and captures images under infrared light and visible light respectively for a same picture, and then fuses the two images through an image fusion system, thereby obtaining a monitoring picture under low illumination; however, since the refractive indexes of light with different wavelengths are different, chromatic aberration (chromatic aberration) is formed after light with different wavelengths passes through the lens, and due to chromatic aberration, the positions of photoelectric convergence points of visible light and infrared light passing through the lens are different, so that the problem that the infrared light and the visible light are not confocal is caused, and a certain color spot or halo is carried when observation is carried out at any position, so that the image is blurred, and the imaging definition of the monitoring camera under low illumination is influenced.

Therefore, the above problems in the prior art have yet to be improved.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a binocular camera, include: first camera lens, first wavelength cut-off device, first sensor, second camera lens, second wavelength cut-off device, second sensor and processor, wherein: the first side surface of the first wavelength cut-off device is arranged opposite to the first lens, the second side surface of the first wavelength cut-off device is arranged opposite to the first sensor, the first sensor is connected with the processor, so that light rays are emitted to the first sensor through the first lens and the first wavelength cut-off device in sequence, and the first wavelength cut-off device is used for filtering the light rays with the first wavelength; the second side surface of the second wavelength cut-off device is opposite to the second lens, the second side surface of the second wavelength cut-off device is opposite to the second sensor, the second sensor is connected with the processor, so that light rays are emitted to the second sensor through the second lens and the second wavelength cut-off device in sequence, the second wavelength cut-off device is used for filtering the light rays with the first wavelength, and the first wavelength is different from the second wavelength.

The embodiment of the utility model provides an in, provide a two mesh cameras to obtain improving chromatic aberration, focusing accuracy, the clear picture of making a video recording under low illumination, solved among the prior art mixed light picture down the fuzzy problem of image fusion effect.

Drawings

Fig. 1 is a schematic diagram of a binocular camera in an embodiment of the present application;

FIG. 2 is an exploded view of a binocular camera with filters according to an embodiment of the present disclosure;

FIG. 3 is a schematic view illustrating an installation of a first lens and a first filter according to an embodiment of the present disclosure;

FIG. 4 is an exploded view of a binocular camera with multiple filter switches according to an embodiment of the present disclosure;

FIG. 5 is a side view of a first mounting bracket in an embodiment of the present application;

FIG. 6 is a front view of a first mounting bracket in an embodiment of the subject application;

FIG. 7 is an exploded side view of a first multi-filter switcher in accordance with an embodiment of the present disclosure;

FIG. 8 is a front view of a first multi-filter switch according to an embodiment of the present disclosure;

FIG. 9 is a bottom view of a first multi-filter switcher according to an embodiment of the present disclosure;

FIG. 10 is a front view of a first multi-filter switch mounted in a first mounting tray according to an embodiment of the present disclosure;

FIG. 11 is a side view of a first multi-filter switch mounted in a first mounting tray according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a stepping motor driving mechanism according to an embodiment of the present application;

FIG. 13 is a schematic structural view of a solenoid valve driving mechanism according to an embodiment of the present application;

FIG. 14 is a schematic structural view of a gear drive mechanism in an embodiment of the present application;

FIG. 15 is a schematic structural view of a pulley drive mechanism in the embodiment of the present application;

fig. 16 is a top view of a binocular camera in an embodiment of the present application;

fig. 17 is a schematic diagram of a monocular camera in an embodiment of the present application.

Detailed Description

The embodiment of the utility model provides a camera and electronic equipment can obtain the clear image of focusing respectively under the wavelength of difference through filtering, later carries out image fusion through the treater to obtain clear picture under the condition of low illuminance, solved the chromatic aberration problem that infrared light and visible light do not have the confocal production.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Under the condition of low illumination, in order to obtain a clear monitoring picture, two groups of cameras of an infrared camera and a visible light camera are used for shooting simultaneously, the two groups of cameras are connected with the same processor, images under infrared light and visible light are obtained through the two groups of cameras respectively, then the images obtained under the infrared light and the images obtained under the visible light are subjected to image fusion through the processor, and therefore the monitoring picture is obtained under the low illumination.

Because the refractive indexes of light with different wavelengths are different, the focus of focusing when the light passes through the lens is different, in the working process, visible light enters the infrared camera, and infrared light also enters the visible light camera.

It should be noted that the above non-confocal problem caused by different wavelengths occurs not only between infrared light and visible light, but also between light beams with different wavelengths, and the specific wavelength of the cut-off light is not limited by the camera and the electronic device provided in the embodiments of the present application.

In order to overcome the above problems, embodiments of the present application provide a camera and an electronic device, where a wavelength cut-off device is disposed between a lens and a sensor, so that light entering the sensor can be filtered, and only light with a specific wavelength is allowed to pass through, so that the lens can accurately focus a shot picture at the wavelength, and then a processor performs image fusion on pictures obtained at various wavelengths through an image fusion algorithm to obtain a clear picture, thereby solving the problem of unclear pictures due to inconocus of light with different wavelengths, and improving the clarity of the shot picture at low illumination.

The image fusion algorithm executed by the processor is a technology existing in the prior art, and is not limited in this application.

In order to implement the technical solution provided by the present application, in the solution provided by the present application, the camera may be a binocular camera, a monocular camera or a monocular camera, which are described below.

A binocular camera.

Fig. 1 is a schematic structural diagram of a camera provided in an embodiment of the present application.

Referring to fig. 1, a first eye of a binocular camera provided in the embodiment of the present application is configured to capture a picture under a light with a first wavelength, a second eye is configured to capture a picture under a second wavelength, the first wavelength is different from the second wavelength, the first eye and the second eye capture a captured scene at the same time, and then a processor performs image fusion on pictures obtained by the two eyes according to an image fusion algorithm, so as to obtain a clear image. Specifically, the binocular camera includes: a first lens 10, a first wavelength cut-off device (not shown) and a first sensor 20 sequentially arranged along the light incidence direction; a second lens 30, a second wavelength cut-off device (not shown) and a second sensor 40 are sequentially disposed along the light incidence direction. The first sensor 20 and the second sensor 40 are connected to a processor 50. Wherein the first wavelength cut-off device and the second wavelength cut-off device are respectively used for cutting off light rays with different wavelengths, for example, a first wavelength cut-off device for cutting off infrared light, a second wavelength cut-off device for cutting off visible light, the present invention is not limited to this, and the first lens 10 and the second lens 30 are focused by the light rays of the wavelength filtered by the first wavelength cut-off device and the second wavelength cut-off device, so that clear images are formed in the first sensor 20 and the second sensor 40, respectively, after which the first sensor 20 and the second sensor 40 send the images to the processor 50, respectively, the processor 50 performs an image fusion algorithm, the images obtained by the first sensor 20 and the second sensor 40 enter into image fusion, so that the problem of inconocus caused by different wavelengths is overcome, and a clear image is obtained in a low-illumination scene.

In the binocular camera provided in the embodiment of the present application, the wavelength cut-off device may be a filter or a multi-filter switch, and hereinafter, two cases of setting the filter for the binocular camera to perform wavelength cut-off and setting the multi-filter switch for the binocular camera to perform wavelength cut-off will be separately described.

1. The binocular camera is provided with a filter for wavelength cut-off.

Referring to fig. 2, in this case, a first eye of the binocular camera is used to capture images under visible light, and a second eye of the binocular camera is used to capture images under infrared light, wherein the first eye includes a first lens 10, a first optical filter 60, and a first sensor 20, which are sequentially arranged along a light incident direction; the second objective includes a second lens 30, a second filter 70 and a second sensor 40, and the first sensor 20 and the second sensor 40 are respectively connected to the processor 50. Referring to fig. 3, a groove 11 is formed at an end of the first lens 10 from which light is emitted, the groove 11 is disposed around the inner side of the first lens 10, the first filter 60 is disposed in the groove 11, and the second filter 70 is connected to the second lens 30 in the same manner. In operation, the first filter 60 has the following two embodiments:

(1) the first filter 60 only cuts off infrared light, so that light in a visible light band enters the first sensor 20, thereby preventing chromatic aberration caused by non-confocal visible light and infrared light, and obtaining a color image which is clearly focused under visible light on the first sensor 20.

(2) The first optical filter 60 is a band pass filter, which is an optical filter adjacent to the cut-off band at two sides of the transmission band of the spectral characteristic curve, for example, the band pass filter only allows light rays in a middle band of 450 to 950nm to pass through, so that not only infrared light can be cut off, but also influence of other light rays such as ultraviolet light on focusing definition of a picture under visible light can be avoided.

For the second filter 70, there are two embodiments:

(1) the second filter 70 completely cuts off the visible light, so that the light in the infrared band enters the second sensor 40, thereby preventing chromatic aberration caused by non-confocal infrared light and visible light, and obtaining a black-and-white image with clear focus under infrared light on the second sensor 40.

(2) The second filter 70 cuts off most of the visible light and keeps part of the visible light to pass through; in an example, different wavelengths can be cut off according to the influence degree of actual infrared confocal, for example, when the visible light wavelength around 600nm and the infrared light are not out of focus, a 560nm cut-off filter can be selected to cut off the wavelengths to obtain partial color texture and contour information, so that an image with richer details can be obtained without generating chromatic aberration in the subsequent image fusion operation.

In this case, in the binocular camera, the filter is used as the wavelength cut-off device, and the infrared light entering the first target is cut off and the visible light entering the second target is cut off in the above manner, so that a picture which is clearly focused under the infrared light is obtained in the first target, and a picture which is clearly focused under the visible light is obtained in the second target, and then the first sensor 20 and the second sensor 40 respectively send the two pictures to the processor 50, and the processor 50 performs image fusion on the two pictures by using an image fusion algorithm, so that a clear picture is obtained, and the picture excludes the influence of chromatic aberration. The filter is light and thin, so that the working effect is stable, the cost is low, and an ideal working effect can be obtained under the condition that the lighting condition is not changed much (for example, the light changes only day and night alternate streets).

It should be noted that the cut-off wavelengths of the first filter 60 and the second filter 70 may be adjusted to other ranges according to actual operation requirements, and all of them belong to the protection scope of the present application.

It should be further noted that, in the above setting manner using the optical filter, once the cut-off wavelength range of the optical filter is set, the optical filter cannot be changed, and for a shooting scene with a large change of the illumination condition, the optical filter cannot be adjusted according to the real-time illumination condition, so as to effectively cut off the light with different wavelengths.

2. The binocular camera is provided with a multi-filter switcher for wavelength cut-off.

First, a specific configuration of a binocular camera equipped with a multi-filter switcher will be described.

The multi-filter switcher includes a composite filter 110 integrated with a plurality of filters for respectively cutting off different wavelengths, and the specific manner of the composite filter 110 may be as follows: a plurality of coatings with different cut-off wavelengths are arranged on a substrate which is fully transparent to light, so that a plurality of filters with different cut-off wavelengths are coatings with different cut-off wavelengths, each coating forms a filter, the composite filter 110 moves under the driving of the driving mechanism 120, so that one filter in the composite filter 110 moves to a position opposite to a lens, thereby realizing the switching of different cut-off wavelengths, wherein the number of the filters arranged in the composite filter 110 may be 2, or more than 2, and the embodiment is not limited.

Referring to fig. 4, in this case, a first eye of the binocular camera is used to capture a picture under visible light, and a first eye of the binocular camera is used to capture a picture under infrared light, wherein the first eye includes a first lens 10, a first mounting bracket 80 and a first sensor 20, which are sequentially arranged along a light incident direction, and a first multi-filter switcher 100 is arranged on the first mounting bracket 80; the second objective includes a second lens 30, a second mounting bracket 90 and a second sensor 40 sequentially arranged along the incident direction of light, wherein the second mounting bracket 90 is provided with a second multi-filter switch 200, and the first sensor 20 and the second sensor 40 are respectively connected with the processor 50.

Referring to fig. 5 and 6, fig. 5 is a side view of the first mounting bracket 80, and fig. 6 is a front view of the first mounting bracket 80; as shown in fig. 5, the first mounting bracket 80 includes: a base 81 and a connecting portion 82 disposed above the base 81, a reinforcing rib 83 is disposed at a connection position of the base 81 and the connecting portion 82, wherein the base 81 abuts against the first sensor 20, a bayonet 82A for being clamped with the first lens 10 is disposed at a top of the connecting portion 82, a slot 84 for mounting the first multi-filter switcher is disposed between the connecting portion 82 and the base 81, a plug 85 for being fixed with the first multi-filter switcher 100 is disposed at one side of the slot 84, as shown in fig. 6, a first through hole 82B is disposed on the connecting portion 82, and the first through hole 82B is aligned with the first lens 10.

Referring to fig. 7 to 9, fig. 7 is an exploded view of a side view of the first multi-filter switch 100, fig. 8 is a front view of the first multi-filter switch 100, and fig. 9 is a bottom view of the first multi-filter switch 100; as shown in fig. 7, the first multi-filter switcher 100 includes: the composite optical filter comprises a composite optical filter 110, a driving mechanism 120 and a shell 130, wherein the composite optical filter 110 is connected with the driving mechanism 120, and the composite optical filter 110 and the driving mechanism 120 are arranged inside the shell 130; as shown in fig. 8, the housing 130 is provided with a second through hole 131, and the filters with different cut-off wavelengths in the composite filter 110 are driven by the driving mechanism 120 to move to the position of the second through hole 131; as shown in fig. 9, a hook 132 for fixing to the first mounting bracket 80 is provided at one side of the housing 130.

Referring to fig. 10 to 11, fig. 10 is a front view of the first multi-filter switcher 100 mounted in the first mounting tray 80, and fig. 11 is a side view of the first multi-filter switcher 100 mounted in the first mounting tray 80; as shown in fig. 10, when the first multi-filter switcher 100 is inserted into the first mounting bracket 80, the second through hole 131 is opposite to the first through hole 82B; as shown in fig. 11, when the first multi-filter switch 100 is inserted into the first mounting bracket 80 through the slot 84, the latch 85 is inserted into the hook 132, so as to fix the first multi-filter switch 100 and the first mounting bracket 80 and prevent the first multi-filter switch 100 from being released from the first mounting bracket 80.

The second multi-filter switcher 200 and the second mounting bracket 90 are installed in the same manner as the first multi-filter switcher 100 and the first mounting bracket 80.

The following describes an operation of a binocular camera equipped with a multi-filter switcher, by way of example.

The first lens 10, the first multi-filter switcher 100 and the first sensor 20; the first multi-filter switch 100 is specifically a first dual-filter switch, and the composite filter 110 of the first dual-filter switch includes a full-transmittance lens and a filter for cutting off infrared light, as mentioned above, the filter for cutting off infrared light may be a filter for cutting off only infrared light, or a bandpass filter for allowing only visible light to pass through.

The second lens 30, the second multi-filter switcher 200 and the second sensor 40; the second multi-filter switch 200 is specifically a second dual-filter switch, and the composite filter 110 of the second dual-filter switch includes a full-transmittance lens and a filter for cutting off visible light, as described above, the filter for cutting off visible light may be a filter for completely cutting off visible light, or a filter for cutting off most visible light, and leaving part of visible light to pass through.

Assume that the shooting environment of the binocular camera is a day-night alternate street.

In the daytime, due to the fact that the shooting environment is fully illuminated, the first eye and the second eye both shoot pictures under visible light; at this time, the first dual-filter switcher and the second dual-filter switcher both switch the full-transmission lens to work, and visible light sequentially passes through the first lens 10 and the first dual-filter switcher to generate a first visible light frame in the first sensor 20; meanwhile, the visible light sequentially passes through the second lens 30 and the second dual-filter switcher to generate a second visible light picture in the second sensor 40, the first sensor 20 and the second sensor 40 respectively send the first visible light picture and the second visible light picture to the processor 50, and the processor 50 uses an image fusion algorithm to fuse the first visible light picture and the second visible light picture into one picture. Under the condition that only visible light is shot in the daytime, the binocular lens has larger light incoming quantity compared with a monocular lens, and can shoot a clearer picture.

At night, because the shooting environment light is weak, the first eye shoots the picture under visible light, the second eye shoots the picture under infrared light, and then the processor 50 carries out image fusion on the two pictures to obtain a clear picture; at this time, the first dual-filter switcher switches the filter for cutting off the infrared light to work right at the first lens 10, and the second dual-filter switcher switches the filter for cutting off the visible light to work right at the second lens 30; the first lens 10 focuses at the visible light wavelength, and the light of infrared light filtered by the first double-filter switcher enters the first sensor 20, so that a clearly focused visible light picture is obtained, and only part of color information is recorded in the visible light picture due to weak illumination; the second lens 30 focuses at the infrared wavelength, and the light of the visible light filtered by the second dual-filter switcher enters the second sensor 40, so as to obtain a clearly focused infrared image; the infrared light picture records black and white outline information; the first sensor 20 and the second sensor 40 respectively send the visible light picture and the infrared light picture to the processor 50, and the processor 50 fuses the visible light picture and the infrared light picture through an image fusion algorithm, so that a clear shot picture is obtained under the condition of low illumination at night.

Taking the alternative street around the clock as an example, the working flow of the binocular camera with the dual-filter switcher is introduced, and it should be noted that the driving mechanism 120 may be divided into four cases, namely, a stepping motor driving mechanism, an electromagnetic valve driving mechanism, a gear driving mechanism and a belt driving mechanism, according to different driving principles, and the four driving cases are suitable for different shooting environments, and are described in sequence below.

(1) A stepper motor drive mechanism.

Referring to fig. 12, the stepping motor driving mechanism includes a stepping motor 121, a power output shaft 121A of the stepping motor 121 is connected to the composite optical filter 110, and when the stepping motor works, the stepping motor drives the power output shaft to provide a linear displacement, so as to drive one optical filter in the composite optical filter 110 to move to a position corresponding to the lens.

(2) And an electromagnetic valve driving mechanism.

Referring to fig. 13, the electromagnetic valve driving mechanism includes a pair of electromagnets 122 disposed opposite to each other, and a metal member 123 disposed on the composite optical filter 110 and capable of being attracted by the electromagnets 122, the metal member 123 being located between the two electromagnets 122 disposed opposite to each other; during specific work, the electromagnet 122 on the side is electrified to generate magnetic force, the electromagnet 122 on the side is powered off and has no magnetic force, and the electromagnet 122 on the side adsorbs the metal piece 123 to move towards the side, so that the composite optical filter 110 is driven to move towards the side; on the contrary, the electromagnet 122 on the opposite side is energized to generate magnetic force, the electromagnet 122 on the side is de-energized and has no magnetic force, and at this time, the electromagnet 122 on the opposite side adsorbs the metal member 123 to move towards the opposite side, so as to drive the composite optical filter 110 to move towards the opposite side. The metal member 123 is attracted from two sides by a set of electromagnets 122 arranged oppositely, so that the filters with different cut-off wavelengths in the composite filter 110 are driven to move to the positions corresponding to the lenses. The electromagnetic valve driving mechanism has high driving speed, can switch the optical filter in time for the shooting environment with sudden change of light and shade conditions, and has high maneuverability.

(3) And a gear driving mechanism.

Referring to fig. 14, the gear driving mechanism includes a first motor 124, a gear 125 disposed on an output shaft of the first motor 124 for driving, and a rack 125A disposed on the hybrid filter 110 and engaged with the gear 125; when the compound optical filter is in specific work, the first motor 124 works, the gear 125 is driven to rotate through the output shaft, the gear 125 drives the compound optical filter 110 to move through the rack 125A in the rotating process, when the first motor 124 rotates forwards, the compound optical filter 110 moves towards one side, and when the first motor 124 rotates backwards, the compound optical filter 110 moves towards the other side, so that one optical filter in the compound optical filter 110 is driven to move to the position corresponding to the lens in such a way. The gear driving mechanism moves stably, mechanical vibration in the process of switching the optical filters can be reduced, and equipment protection is facilitated.

(4) And a pulley driving mechanism.

Referring to fig. 15, the pulley driving mechanism includes a second motor 126, a first pulley 127, a second pulley 128 and a belt 129, wherein the first pulley 127 is disposed on the output shaft of the second motor 126, the first pulley 127 and the second pulley 128 are connected by a belt 129, the belt 129 is connected to the composite filter 110 through a connector 129A, which is a cylinder, one end of the column is connected with the belt 129, the other end is connected with the composite filter 110, when in specific work, the second motor 126 is rotated in the forward direction, the first pulley 127 drives the belt 129 to one side, thereby driving the composite filter 110 to move to one side through the connecting member 129A, and similarly, when the second motor 126 rotates reversely, the composite filter 110 moves to the other side, so that one filter in the composite filter 110 is driven to move to the position corresponding to the lens in this way. The belt pulley driving mode can effectively protect the composite filter 110, and prevent the filter from being cracked due to forced driving of the driving mechanism when the composite filter 110 is stuck.

It should be noted that, under the condition of low illuminance, when the second eye shoots an infrared image, because light is weak, light intensity of infrared light is insufficient, and definition of the infrared image is affected, for this reason, an infrared lamp 300 for providing infrared illumination is provided at the second eye, see fig. 16, fig. 16 is a top view of the binocular camera provided by the present application, as shown in fig. 16, the infrared lamp 300 includes a U-shaped lamp panel 310, a plurality of groups of infrared lamp beads 320 for providing infrared illumination are provided on the U-shaped lamp panel 310, the infrared lamp 300 is connected with the second sensor 40, and in the working process, if the second sensor 40 determines that the received infrared light is insufficient, the infrared lamp 300 is started to perform infrared illumination on a shot scene, so that light supplement is realized, and a clear infrared image is obtained.

In the binocular camera, various conditions of wavelength cutoff by using the optical filters and the multi-optical filter switcher are introduced, the binocular camera can simultaneously obtain visible light pictures and infrared light pictures for the processor 50 to perform image fusion under the condition of low illumination, and can obtain more frames within preset time when shooting videos, so that high-speed shooting is realized. Simultaneously, binocular has occupied great volume, and binocular setting has also promoted the cost of equipment, and to this, this application embodiment still provides a monocular camera's implementation.

And secondly, a monocular camera.

Referring to fig. 17, the monocular camera in this case includes a third lens 400, a third mounting bracket 500, a third sensor 600, and a processor 50, which are sequentially disposed along a light incidence direction, and the third mounting bracket 500 is provided with a third multi-filter switcher. The third mounting bracket 500 and the third multi-filter switcher are arranged in the same manner as the first mounting bracket 80 and the first multi-filter switcher 100, and are not described herein again, and the driving mechanism of the third multi-filter can be any one of the stepping motor driving mechanism, the solenoid valve driving mechanism, the gear driving mechanism, or the pulley driving mechanism, and is not described herein again.

The following will describe the operation of the monocular camera, taking the example of a street with the shooting environment changed day and night.

In the daytime, because the shooting environment is sufficiently illuminated, the third multi-filter switcher switches the full-transmission lens to shoot the street, the light sequentially passes through the third lens 400 and the full-transmission lens of the third multi-filter switcher, an image is generated by the third sensor 600 and sent to the processor 50, and then the monitoring picture can be directly obtained.

At night, the shooting environment light is weak, the third multi-filter switcher switches the infrared light cut-off filter first to filter the light entering the third sensor 600, and the third sensor 600 obtains a visible light picture focused accurately and sends the visible light picture to the processor 50; then, the third multi-filter switcher switches the visible light cut-off filter to filter light entering the third sensor 600, the third sensor 600 obtains an infrared light picture which is focused accurately and sends the infrared light picture to the processor 50, the processor 50 performs image fusion on the visible light picture and the infrared light picture by using an image fusion algorithm to obtain a clear shot picture, the operation is repeated, the third multi-filter switcher switches back and forth between the infrared light cut-off filter and the visible light cut-off filter to obtain a continuous number of shot pictures, and therefore the image fusion algorithm of the visible light picture and the infrared light picture can be achieved only through the monocular camera under the condition of low illumination.

During specific work, in order to overcome the deficiency of infrared light under the condition of low illumination, the monocular camera is also provided with the infrared lamp 300 connected with the third sensor 600 for light supplement, the setting mode of the infrared lamp 300 is the same as that of the second eye infrared lamp 300 in the binocular camera, and the description is omitted here.

The implementation mode of the embodiment of the application under the monocular camera is introduced, the monocular camera is light in size and low in cost, and the monocular camera can be used for fusion shooting of infrared light and visible light under the condition of low illumination. However, due to the limit of the switching speed of the third multi-filter switcher, the working mode of the monocular camera cannot meet the requirement of high-speed continuous shooting, and the working mode of the monocular camera can be adopted when the requirement on the volume of the device is not strict and the cost is not sensitive.

And thirdly, a multi-view camera.

The multi-view camera includes cameras with more than two views, each view is used for acquiring a clear focused picture under different wavelengths, and then sending the pictures to the same processor 50 for image fusion, so as to acquire a more accurate focused image relative to the monocular camera and the binocular camera.

The present application further provides an electronic device, where the electronic device may be a monitoring device, a video recorder, or a DV machine, and the electronic device further includes a camera, and the specific structure of the camera may be shown in the foregoing embodiments, which is not described herein again.

The camera and the electronic device provided by the embodiments of the present invention are described in detail above, and the principle and the implementation of the present invention are explained herein by applying a specific example, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A binocular camera, comprising: first camera lens, first wavelength cut-off device, first sensor, second camera lens, second wavelength cut-off device, second sensor and processor, wherein:

the first side surface of the first wavelength cut-off device is arranged opposite to the first lens, the second side surface of the first wavelength cut-off device is arranged opposite to the first sensor, the first sensor is connected with the processor, so that light rays are emitted to the first sensor through the first lens and the first wavelength cut-off device in sequence, and the first wavelength cut-off device is used for filtering the light rays with the first wavelength;

the second side surface of the second wavelength cut-off device is opposite to the second lens, the second side surface of the second wavelength cut-off device is opposite to the second sensor, the second sensor is connected with the processor, so that light rays are emitted to the second sensor through the second lens and the second wavelength cut-off device in sequence, the second wavelength cut-off device is used for filtering the light rays with the first wavelength, and the first wavelength is different from the second wavelength.

2. The binocular camera of claim 1, wherein:

the first wavelength cut-off device is used for cutting off infrared light;

the second wavelength cut-off device is used for cutting off visible light.

3. The binocular camera of claim 1, wherein:

the first wavelength cut-off device is a first optical filter, and the first optical filter meets one of the following two conditions:

the first optical filter cuts off infrared light;

the first optical filter is a band-pass filter and is used for cutting off infrared light and ultraviolet light.

4. The binocular camera of claim 1, wherein:

the first wavelength cutoff device is a first filter, wherein:

the first optical filter is a band-pass filter, and the band-pass filter only allows light rays in a middle section of wave band of 450-950 nm to pass through.

5. The binocular camera of any of the claims 1-4, wherein the second wavelength cut-off device conforms to one of the following two conditions:

the second wavelength cut-off device is used for completely cutting off visible light;

the second wavelength cut-off device is used for cutting off most of visible light, and part of the visible light is reserved to pass through.

6. The binocular camera of claim 1, wherein:

and the second lens is correspondingly provided with an infrared lamp for providing infrared light illumination.

7. The binocular camera of claim 1, wherein:

the processor is used for carrying out image fusion on the images obtained by the first sensor and the second sensor through an image fusion algorithm.

8. The binocular camera of any of claims 1-4, wherein the first wavelength cutoff device is a first dual filter switch and the second wavelength cutoff device is a second dual filter switch:

when the shooting environment is sufficiently illuminated: the first dual-filter switcher and the second dual-filter switcher both switch full-transmission lenses to work, visible light sequentially passes through the first lens and the first dual-filter switcher, and a first visible light picture is generated in the first sensor; visible light sequentially passes through the second lens and the second double-filter switcher to generate a second visible light picture in the second sensor; the first sensor and the second sensor are respectively used for sending the first visible light picture and the second visible light picture to the processor; the processor is used for fusing the received first visible light picture and the second visible light picture into a picture by using an image fusion algorithm;

when the shooting environment light is weak: the first dual-filter switcher is used for switching the filter for cutting off the infrared light to work right at the first lens, and the second dual-filter switcher is used for switching the filter for cutting off the visible light to work right at the second lens; the first lens is used for focusing under the wavelength of visible light, and light rays of infrared light filtered by the first double-filter switcher enter the first sensor so as to obtain a visible light picture; the second lens is used for focusing under the infrared wavelength, and light rays of which visible light is filtered out by the second double-optical filter switcher enter the second sensor so as to obtain an infrared picture; the first sensor and the second sensor are respectively used for sending the visible light picture and the infrared light picture to the processor; and the processor fuses the received visible light picture and the infrared light picture through an image fusion algorithm.

9. The binocular camera of claim 1, wherein:

the first wavelength cut-off device and the second wavelength cut-off device are both multi-optical filter switchers;

the multi-filter switcher includes a composite filter integrated with a plurality of filters that respectively cut off different wavelengths.