CN109688317A - A kind of video camera and image generating method - Google Patents
A kind of video camera and image generating method Download PDFInfo
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- CN109688317A CN109688317A CN201710970575.XA CN201710970575A CN109688317A CN 109688317 A CN109688317 A CN 109688317A CN 201710970575 A CN201710970575 A CN 201710970575A CN 109688317 A CN109688317 A CN 109688317A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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Abstract
The embodiment of the present invention provides a kind of video camera and image generating method, the video camera includes: camera lens, light-dividing device, image processor and multiple images sensor, multiple images sensor is electrically connected with image processor respectively, at least one imaging sensor is used to handle the light that light intensity is greater than the first Intensity threshold, at least one imaging sensor is for handling light of the light intensity less than the second Intensity threshold, light-dividing device is used to the light projected from camera lens being separated into multi beam light, wherein, the quantity of light and the quantity of imaging sensor are identical, each imaging sensor is for receiving the Ray Of Light that light-dividing device is isolated, and the light received is converted into initial pictures, each imaging sensor receives different beam light；Image processor is used to carrying out each initial pictures into fusion to generate blending image.In the present invention, the multi beam image formation by rays isolated using different imaging sensors to light-dividing device expands imaging dynamic range, solves the problems, such as that color of image is distorted.
Description
Technical field
The present invention relates to camcorder technology fields, more particularly to a kind of video camera and image generating method.
Background technique
As shown in Figure 1, current video camera, including camera lens 1, imaging sensor 2 and image processor 3, imaging sensor 2
It is electrically connected with image processor 3.
When shooting image using above-mentioned video camera, extraneous light is injected into imaging sensor 2, image sensing by camera lens 1
Extraneous light is carried out photoelectric conversion by device 2, obtains initial pictures, and initial pictures are sent to image processor 3, image procossing
Device 3 carries out processing to the initial pictures received and generates treated image.
It is since imaging sensor is limited for the light intensity processing capacity of a frame image, i.e., excessively bright in same frame image
Object can normally show that then excessively dark object can not normally be shown, conversely, excessively dark object can normally be shown, then excessively bright object
Body can not normally show, therefore, when the light intensity in the scene of video camera shooting is stronger, will lead to treated figure generated
There is cross-color in picture, such as: the image of running red light for vehicle is captured, it is since the brightness of signal lamp is higher, i.e., excessively bright, be
Show that other not excessively bright objects in image normally, so that signal lamp region can not be imaged in imaging sensor
Processing leads to generate signal lamp color distortion in treated image.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of video camera and image generating method, to solve color of image mistake
Genuine problem.Specific technical solution is as follows:
A kind of video camera, comprising: camera lens, light-dividing device, image processor and multiple images sensor, multiple described images
Sensor is electrically connected with described image processor respectively, wherein at least one imaging sensor is for handling light intensity greater than first
The light of Intensity threshold, at least one imaging sensor are used to handle light of the light intensity less than the second Intensity threshold,
The light-dividing device, for the light projected from the camera lens to be separated into multi beam light, wherein the light
Quantity is identical as the quantity of described image sensor；
Each described image sensor, the Ray Of Light isolated for receiving the light-dividing device, and will receive
Light is converted to initial pictures, wherein each described image sensor receives different beam light；
Described image processor generates blending image for merging each initial pictures.
Optionally, the light-dividing device includes N number of Amici prism；
N number of Amici prism, for the light projected from the camera lens to be separated into N+1 beam light, wherein N is positive whole
Number.
Optionally, the light-dividing device includes the first Amici prism and the second Amici prism；
First Amici prism, for the light projected from the camera lens to be separated into two-beam line, wherein isolate
Two-beam line beam intensity ratio Transflective corresponding with first Amici prism than identical；
Second Amici prism, the most dim light in two-beam line for isolating first Amici prism are strong
Light is separated into two-beam line, wherein the transmission corresponding with second Amici prism of the beam intensity ratio for the two-beam line isolated
Reflectivity is identical；
Each described image sensor, for receiving in the light that first Amici prism is isolated not by described second
The Ray Of Light in two-beam line that the light and second Amici prism of Amici prism separation are isolated, and will receive
To light be converted to initial pictures, wherein each described image sensor receives different beam light.
It optionally, further include synchronised clock, multiple described image sensors are electrically connected with the synchronised clock respectively；
The synchronised clock, for distinguishing tranmitting data register synchronization signal to each imaging sensor.
Optionally, the Exposure mode of each described image sensor is global formula exposure.
It optionally, further include multiple infrared fileters, the quantity of the infrared fileter and the number of described image sensor
It measures identical；
Each infrared fileter, the Ray Of Light isolated for receiving the light-dividing device, and filter out and receive
Light in infrared light, wherein each infrared fileter receives different beam light；
Each described image sensor for receiving the Ray Of Light projected from an infrared fileter, and will connect
The light received is converted to initial pictures, wherein each described image sensor receives different beam light.
A kind of image generating method, is applied to video camera, and video camera includes: camera lens, light-dividing device, image processor and more
A imaging sensor, multiple described image sensors are electrically connected with described image processor respectively, and at least one image sensing
Device is used to handle the light that light intensity is greater than the first Intensity threshold, at least one imaging sensor is for handling light intensity less than the second light
The light of strong threshold value, which comprises
The light projected from the camera lens is separated into multi beam light by the light-dividing device, wherein the quantity of the light
It is identical as the quantity of described image sensor；
Each described image sensor receives the Ray Of Light that the light-dividing device is isolated, and the light received is turned
It is changed to initial pictures, wherein each described image sensor receives different beam light；
Described image processor merges each initial pictures, generates blending image.
Optionally, the light-dividing device includes N number of Amici prism, the light that the light-dividing device will be projected from the camera lens
The step of being separated into multi beam light, comprising:
The light projected from the camera lens is separated into N+1 beam light by N number of Amici prism, and wherein N is positive integer.
Optionally, the light-dividing device includes the first Amici prism and the second Amici prism, and N number of Amici prism will be from
The step of light that the camera lens projects is separated into N+1 beam light, comprising:
The light projected from the camera lens is separated into two-beam line by first Amici prism, wherein two isolated
The beam intensity ratio of beam light Transflective corresponding with first Amici prism is than identical；
The strong light of the most dim light in two-beam line that second Amici prism isolates first Amici prism
It is separated into two-beam line, wherein the beam intensity ratio for the two-beam line isolated Transflective corresponding with second Amici prism
Than identical；
Each described image sensor receives the Ray Of Light that the light-dividing device is isolated, and the light that will be received
Line is converted to the step of initial pictures, comprising:
Each described image sensor is received in the light that first Amici prism is isolated and is not divided by described second
The light and the Ray Of Light in the two-beam line isolated of second Amici prism of prism separation, and will receive
Light is converted to initial pictures, wherein each described image sensor receives different beam light.
Optionally, video camera further includes synchronised clock, and multiple described image sensors are electrically connected with the synchronised clock respectively
It connects, the method also includes:
The synchronised clock distinguishes tranmitting data register synchronization signal to each imaging sensor.
Optionally, the Exposure mode of each described image sensor is global formula exposure.
Optionally, video camera further includes multiple infrared fileters, and the quantity and described image of the infrared fileter sense
The quantity of device is identical, and each infrared fileter receives the Ray Of Light that the light-dividing device is isolated, and filters out and receive
Light in infrared light, wherein each infrared fileter receives different beam light；
Each described image sensor receives the Ray Of Light that the light-dividing device is isolated, and the light that will be received
Line is converted to the step of initial pictures, comprising:
Each described image sensor receives the light-dividing device and passes through the Ray Of Light that an infrared fileter projects, and
The light received is converted into initial pictures, wherein each described image sensor receives different beam light.
Optionally, the step of described image processor merges each initial pictures, generates blending image, comprising:
The initial pictures are determined according to the pixel value of each pixel in the initial pictures for every initial pictures
In the corresponding weight of each pixel；
According to the corresponding weight of each pixel and pixel value, the pixel of same position will be located in every initial pictures
The pixel value of point is merged, and blending image is generated.
In the embodiment of the present invention, the light projected from camera lens is divided by multi beam light by light-dividing device, due to passing through
Light-dividing device has isolated multi beam light, and each imaging sensor carries out the Ray Of Light that light-dividing device is isolated
Imaging generates initial pictures, then again merges each initial pictures, generates blending image.Due at least one figure
As the light that sensor is used to handle light intensity greater than the first Intensity threshold, at least one imaging sensor is less than for handling light intensity
The light of second Intensity threshold, not only the region high to light intensity has carried out imaging as a result, but also carries out to the low region of light intensity
Imaging so that object excessively bright and excessively dark in blending image can normally be shown, relative to an imaging sensor at
The case where picture, expands the dynamic range of imaging, solves the problems, such as color of image distortion.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of video camera in the prior art；
Fig. 2 is the first structural schematic diagram of video camera provided in an embodiment of the present invention；
Fig. 3 is second of structural schematic diagram of video camera provided in an embodiment of the present invention；
Fig. 4 is the third structural schematic diagram of video camera provided in an embodiment of the present invention；
Fig. 5 is the 4th kind of structural schematic diagram of video camera provided in an embodiment of the present invention；
Fig. 6 is the 5th kind of structural schematic diagram of video camera provided in an embodiment of the present invention；
Fig. 7 is the 6th kind of structural schematic diagram of video camera provided in an embodiment of the present invention；
Fig. 8 is the flow diagram of image generating method provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of video camera and image generating methods.Under
Kept man of a noblewoman is first described in detail video camera provided in an embodiment of the present invention.
Fig. 2 is the first structural schematic diagram of video camera provided in an embodiment of the present invention, and video camera includes: camera lens 10, divides
Electro-optical device 20, image processor 30 and multiple images sensor 40, multiple images sensor 40 are electric with image processor 30 respectively
Connection.
It can normally be shown in the picture to make bright and excessively dark object, at least one imaging sensor is set and is used for
The light that light intensity is greater than the first Intensity threshold is handled, at least one imaging sensor is for handling light intensity less than the second Intensity threshold
Light, wherein the first Intensity threshold and the second Intensity threshold may be the same or different.
Light-dividing device 20, for the light projected from camera lens 10 to be separated into multi beam light, wherein the quantity and figure of light
As the quantity of sensor 40 is identical；
Each imaging sensor 40, the Ray Of Light isolated for receiving light-dividing device 20, and the light that will be received
Be converted to initial pictures, wherein each imaging sensor 40 receives different beam light；
Image processor 30 generates blending image for merging each initial pictures.
As denoted by the arrows in fig. 2, light injects light-dividing device 20 from outside by camera lens 10, and light-dividing device 20 will be from mirror
First 10 light projected are separated into multi beam light and project, and the multi beam light of injection injects multiple images sensor 40 respectively, often
The light received is converted to initial pictures and is sent to image processor 40 by a imaging sensor 40, and image processor 30 will
Each initial pictures are merged, and blending image is generated.Since in multiple images sensor 40, at least one is for handling light
Strong high light, the low light of at least one processing light intensity, therefore, excessively bright and excessively dark object can be normal in blending image
Display.
The light projected from camera lens 10 is divided by multi beam light by light-dividing device 20 as a result, due to passing through light splitting dress
It sets 20 and has isolated multi beam light, each imaging sensor 40 carries out the Ray Of Light that light-dividing device 20 is isolated
Imaging generates initial pictures, then again merges each initial pictures, generates blending image.Due at least one figure
As the light that sensor is used to handle light intensity greater than the first Intensity threshold, at least one imaging sensor is less than for handling light intensity
The light of second Intensity threshold, not only the region high to light intensity has carried out imaging as a result, but also carries out to the low region of light intensity
Imaging so that object excessively bright and excessively dark in blending image can normally be shown, relative to an imaging sensor at
The case where picture, expands the dynamic range of imaging, solves the problems, such as color of image distortion.
It should be noted that the optical path trend in Fig. 2 only indicates the schematic diagram of opticpath, accurate light is not represented
Path.
In one embodiment, light-dividing device 20 may include N number of Amici prism 201, and N number of Amici prism 201 is used for
The light projected from camera lens 10 is separated into N+1 beam light, wherein N is positive integer.
Amici prism 201 is one then composed by carrying out being coated with multi-coated interference film on the inclined-plane of right-angle prism
Cube structure, after light is by multi-coated interference film, the optical element that can be transmitted and be reflected to light does not change
The Wavelength distribution of darkening line only changes light intensity or polarization direction.
Wherein, the Transflective of Amici prism 201 is than the transmitted light and reflected light isolated for light through Amici prism 201
Beam intensity ratio.
As shown in figure 3, a kind of embodiment when being 1 as N, i.e. light-dividing device 20 include 1 Amici prism 201, such as
Shown in arrow in Fig. 3, the light projected from camera lens 10 injects Amici prism 201, and Amici prism 201 will be projected from camera lens 10
Light is separated into two-beam line, and two-beam line injects two imaging sensors 40 respectively, and each imaging sensor 40 will receive
Light be converted to initial pictures and be sent to image processor 30, image processor 30 merges two initial pictures,
Generate blending image.
The light projected from camera lens 10 is separated by 2 beam light, two image sensings by 1 Amici prism 201 as a result,
The light for being greater than the first Intensity threshold for handling light intensity in device 40, another is for handling light intensity less than the second light intensity
The light of threshold value, not only the region high to light intensity had carried out imaging, but also had carried out imaging to the low region of light intensity, so that
The case where excessively bright and excessively dark object can normally be shown in blending image, be imaged relative to an imaging sensor, expands
The dynamic range of imaging, solves the problems, such as color of image distortion.
As shown in figure 4, a kind of embodiment when being 2 as N, i.e. light-dividing device include 2 Amici prisms 201, respectively
For the first Amici prism 201 and the second Amici prism 201, the first Amici prism 201, the light point for will be projected from camera lens 10
From for two-beam line, wherein the beam intensity ratio for the two-beam line isolated Transflective corresponding with the first Amici prism 201 compares phase
Together；
Second Amici prism 201, the strong light of the most dim light in two-beam line for isolating the first Amici prism 201
Line is separated into two-beam line, wherein the beam intensity ratio for the two-beam line isolated Transflective corresponding with the second Amici prism 201
Than identical；
Each imaging sensor 40, for receiving in the light that the first Amici prism 201 is isolated not by the second light splitting rib
The Ray Of Light in two-beam line that the isolated light of mirror 201 and the second Amici prism 201 are isolated, and will receive
Light is converted to initial pictures, wherein each imaging sensor 40 receives different beam light.
As shown by the arrows in figure 4, the light projected from camera lens 10 injects the first Amici prism 201, the first Amici prism
The light projected from camera lens 10 is separated into two-beam line by 201, and the strong light of the most dim light in two-beam line injects the second light splitting
The strong light of the most dim light received is separated into two-beam line by prism 201, the second Amici prism 201.
Not by the isolated light of the second Amici prism 201 and second point in the light that first Amici prism 201 is isolated
The two-beam line that light prism 201 is isolated injects three imaging sensors 40 respectively, and each imaging sensor 40 will receive
Light is converted to initial pictures and is sent to image processor 30, and image processor 30 merges three initial pictures, raw
At blending image.
The light projected from camera lens 10 is separated into 3 beam light, three image sensings by 2 Amici prisms 201 as a result,
At least one of device 40 is used to handle the light that light intensity is greater than the first Intensity threshold, at least one is for handling light intensity less than the
The light of two Intensity thresholds, not only the region high to light intensity had carried out imaging, but also had carried out at imaging to the low region of light intensity
Reason, so that object excessively bright and excessively dark in blending image can normally be shown, the feelings relative to the imaging of an imaging sensor
Condition expands the dynamic range of imaging, solves the problems, such as color of image distortion.
In one embodiment, Amici prism 201 can be depolarization Amici prism, and depolarization Amici prism makes incidence
The P-polarization component and S-polarization component of light have similar dichroism.Protected as much as possible after the light splitting of depolarization Amici prism
The proportionate relationship of original horizontal polarization and vertical polarization in incident light is held, P-polarization component is separated with the optical characteristics of S-polarization component
Degree < 5%.
P-polarization component and S-polarization component are introduced below: when light penetrates with non-perpendicular angle the table of optical element
When face, transmission and reflection characteristic all relies on polarization phenomena.In this case, the coordinate system used is with containing input and reflection
That plane definition of light beam.If the polarization vector of light is in this plane, referred to as P-polarization component, if polarization
Vector is perpendicular to the plane, then referred to as S-polarization component.
In another embodiment, light-dividing device 20 may include N number of plate beamsplitter mirror, and N number of plate beamsplitter mirror is used for
The light projected from camera lens 10 is separated into N+1 beam light, wherein N is positive integer.
Plate beamsplitter mirror be it is a kind of film is plated on transparent optical plate glass surface, in light by after film,
The optical element that can be transmitted and be reflected to light, does not change the Wavelength distribution of light, only changes light intensity or inclined
Shake direction.
Wherein, the Transflective of plate beamsplitter mirror is than the transmitted light isolated for light through plate beamsplitter mirror and reflected light
Beam intensity ratio.
Since the light splitting principle of plate beamsplitter mirror and the light splitting principle of Amici prism are similar, it is directed to when N is 1
Amici prism 201 in Fig. 3 is replaced with plate beamsplitter mirror referring to Fig. 3 by a kind of embodiment, is directed to when N is 2
Amici prism 201 in Fig. 4 is replaced with plate beamsplitter mirror, details are not described herein referring to fig. 4 by a kind of embodiment.
Since the embodiment of the present invention includes multiple images sensors 40, in order to keep each imaging sensor 40 synchronous, i.e., together
When start expose or terminate to expose simultaneously, as shown in figure 5, video camera provided in an embodiment of the present invention can also include synchronised clock
50, multiple images sensor 40 is electrically connected with synchronised clock 50 respectively, synchronised clock 50, for distinguishing tranmitting data register synchronization signal
To each imaging sensor 40.As a result, by way of tranmitting data register synchronization signal, so that the clock of each imaging sensor 40
It is synchronous, it ensure that the accuracy of the clock of each imaging sensor 40, further ensure the accuracy for generating image.
The dynamic range of general video camera is 0-70dB, wherein the dynamic range of video camera is one of video camera shooting
In picture, the section that the brightness value of the most bright and most dark object of details is included can be normally shown, the dynamic range of video camera has
Two units, one is multiple, and one is dB, and there are reduction formula, 2 times of ≈ 6dB for the two.
The dynamic range of video camera is bigger, the degree that excessive lightness or darkness object can normally be shown in the same picture
Also bigger, therefore, in order to preferably solve the problems, such as that color of image is distorted, need to make the wide dynamic of the dynamic range of video camera
Range, wherein wide dynamic range 100-120dB.
For the video camera comprising an imaging sensor, the algorithm of the dynamic range of video camera is the strong ground of light
The ratio of the light exposure in the weak place of the light exposure and light of side, due in the embodiment of the present invention, including multiple images sensor
40, therefore, the algorithm of the dynamic range of video camera is the strongest light separated after being divided and most decreased light in image sensing
Light exposure ratio on device, wherein light exposure is the product of light intensity and time for exposure.
Since the maximum dynamic of common camera is 70dB, and the dynamic range of the wide dynamic scene of actual photographed is more than
Therefore 100-120dB in order to make cameras capture to the image of wide dynamic range scene, is needed the dynamic range of video camera
At least increase 30dB, i.e., at least increases by 32 times, that is, the strongest light separated after being divided and most decreased light are in imaging sensor
On light exposure ratio be 32:1 or so.
In the present solution, light intensity is reduced, first by light-dividing device so that each imaging sensor 40 is to light
It will not be overflowed when stronger part photoelectric conversion, that is, increase the dynamic range of video camera；Further by reducing exposure
Time, so that the photoelectric conversion time of imaging sensor 40 shortens, when being further reduced part photoelectric conversion stronger to light
Spilling, that is, further increase the dynamic range of video camera.
It is detailed, it can be determined according to the light intensity of the time for exposure of each imaging sensor 40 and the light received each
The corresponding light exposure of light that a imaging sensor 40 receives.In the beam intensity ratio for the light that each imaging sensor 40 receives
When fixed, can the light according to received by each imaging sensor 40 intensity than determining each correspondence of imaging sensor 40
Exposure ratio, i.e. time for exposure ratio.
Such as: light-dividing device isolates 3 beam light, and the beam intensity ratio of 3 beam light is 8:1:1, in order to make to divide after light splitting
Strongest light and the light exposure ratio of most decreased light on the image sensor out reaches 32:1, can be corresponding by 3 beam light
The time for exposure ratio of imaging sensor 40 is set as 4:4:1, then light received by each imaging sensor 40 after being divided
Ratio be 32:4:1, it is seen then that the strongest light that is separated after light splitting and the light exposure of most decreased light on the image sensor
Ratio is 32:1, i.e., the increased dynamic range ratio of video camera is 32:1, at this point, the dynamic range of video camera increases 32 times,
That is 30dB.
As a result, solving the problems, such as color of image distortion by way of increasing the dynamic range of video camera, compared to logical
The mode of image procossing is crossed to solve the problems, such as that color of image is distorted, without to the distortion color in image in the embodiment of the present invention
The position in region is detected, such as: the position of signal lamp is detected, practicability is improved.
Currently, imaging sensor 40 is generally exposed using roller shutter type Exposure mode, roller shutter type Exposure mode is to pass through
What the mode that imaging sensor 40 exposes line by line was realized, when exposing beginning, the progressive scan of imaging sensor 40 is exposed line by line
Light, until all pixels point is all exposed.Certainly, all movements are completed in a very short period of time.
Since roller shutter type Exposure mode is to be exposed line by line, so that the beginning time for exposure for pixel of not going together is different,
There is the sequence of first post-exposure, therefore, roller shutter type Exposure mode is bad for the imaging effect of moving object, can generate movement
The problem of object deforms, therefore, in order to avoid the generation of this case, in one embodiment, each imaging sensor 40
It can be using the Exposure mode of global formula exposure.
Global formula Exposure mode is to be exposed realization in the same time by all pixels point of imaging sensor 40,
I.e. when exposing beginning, all pixels point of imaging sensor 40 starts to collect light, in end exposure, imaging sensor 40
All pixels point do not regather light, due to global formula exposure Exposure mode be all pixels point while exposing, do not go together
The beginning time for exposure of pixel is identical with the time for exposure is terminated, i.e., there is no the sequences of first post-exposure therefore to avoid generation
The case where moving object deforms.
In order to avoid the image of generation is rubescent, in one embodiment, as shown in fig. 6, provided in an embodiment of the present invention
Video camera can also include multiple infrared fileters 60, and the quantity of infrared fileter 60 is identical as the quantity of imaging sensor 40,
Each infrared fileter 60, the Ray Of Light isolated for receiving light-dividing device 20, and filter out red in the light received
UV light, wherein each infrared fileter 60 receives different beam light；Each imaging sensor 40, it is red from one for receiving
The Ray Of Light that outer optical filter 60 projects, and the light received is converted into initial pictures, wherein each imaging sensor 40
Receive different beam light.
As indicated by the arrows in fig. 6, light injects light-dividing device 20 from outside by camera lens 10, and light-dividing device 20 will be from mirror
First 10 light projected are separated into multi beam light and project, and the multi beam light of injection injects multiple infrared fileters 60 respectively, often
A infrared fileter 60 filters out the infrared light in the light received and injection, and the multi beam light of injection injects multiple figures respectively
As sensor 40, the light received is converted to initial pictures and is sent to image processor 40 by each imaging sensor 40,
Image processor 30 merges each initial pictures, generates blending image.Light is separated in light-dividing device as a result,
Filtering out for infrared light is carried out later, then carries out subsequent image generation, has achieved the purpose that the image for avoiding generating is rubescent.
It should be noted that the optical path trend in Fig. 6 only indicates the schematic diagram of opticpath, accurate light is not represented
Path.
In order to avoid the image of generation is rubescent, in another embodiment, as shown in fig. 7, the embodiment of the present invention provides
Video camera can also include infrared fileter 60, infrared fileter 60 and be filtered out for receiving the light from the injection of camera lens 10
The infrared light in light received, light-dividing device 20 for receiving the light projected from infrared fileter 60, and will receive
To light be separated into multi beam light.
As depicted by the arrows in figure 7, light injects infrared fileter 60 from outside by camera lens 10, and infrared fileter 60 connects
The light projected from camera lens 10 is received, the infrared light in the light received and injection are filtered out, the light of injection injects light splitting dress
20 are set, the light projected from infrared fileter 60 is separated into multi beam light and projected by light-dividing device 20, the multi beam light of injection
Multiple images sensor 40 is injected respectively, and the light received is converted to initial pictures and is sent to by each imaging sensor 40
Image processor 30, image processor 30 merge each initial pictures, generate blending image.
Infrared light is carried out before light-dividing device separates light as a result, to filter out, and is then carried out again subsequent
Image generates, and infrared light is carried out before being separated compared to light-dividing device to light and is filtered out, infrared fileter is reduced
60 quantity reduces the cost of video camera.
It should be noted that the optical path trend in Fig. 7 only indicates the schematic diagram of opticpath, accurate light is not represented
Path.
Image generating method provided in an embodiment of the present invention is described in detail below, as shown in figure 8, the present invention is implemented
A kind of image generating method that example provides, is applied to video camera, and video camera includes: camera lens, light-dividing device, image processor and more
A imaging sensor, multiple images sensor are electrically connected with image processor respectively, and at least one imaging sensor is for locating
The powerful light in the first Intensity threshold of Ricoh, at least one imaging sensor is for handling light intensity less than the second Intensity threshold
Light, this method comprises:
S101: the light projected from camera lens is separated into multi beam light by light-dividing device, wherein the quantity and image of light pass
The quantity of sensor is identical；
S102: each imaging sensor receives the Ray Of Light that light-dividing device is isolated, and the light received is converted
For initial pictures, wherein each imaging sensor receives different beam light；
S103: image processor merges each initial pictures, generates blending image.
As denoted by the arrows in fig. 2, light injects light-dividing device 20 from outside by camera lens 10, and light-dividing device 20 will be from mirror
First 10 light projected are separated into multi beam light and project, and the multi beam light of injection injects multiple images sensor 40 respectively, often
The light received is converted to initial pictures and is sent to image processor 40 by a imaging sensor 40, and image processor 30 will
Each initial pictures are merged, and blending image is generated.Since in multiple images sensor 40, at least one is for handling light
Strong high light, the low light of at least one processing light intensity, therefore, excessively bright and excessively dark object can be normal in blending image
Display.
It should be noted that the optical path trend in Fig. 2 only indicates the schematic diagram of opticpath, accurate light is not represented
Path.
In the embodiment of the present invention, the light projected from camera lens is divided by multi beam light by light-dividing device, due to passing through
Light-dividing device has isolated multi beam light, and each imaging sensor carries out the Ray Of Light that light-dividing device is isolated
Imaging generates initial pictures, then again merges each initial pictures, generates blending image.Due at least one figure
As the light that sensor is used to handle light intensity greater than the first Intensity threshold, at least one imaging sensor is less than for handling light intensity
The light of second Intensity threshold, not only the region high to light intensity has carried out imaging as a result, but also carries out to the low region of light intensity
Imaging so that object excessively bright and excessively dark in blending image can normally be shown, relative to an imaging sensor at
The case where picture, expands the dynamic range of imaging, solves the problems, such as color of image distortion.
In one embodiment, light-dividing device may include N number of Amici prism, the light that light-dividing device will be projected from camera lens
Line is separated into multi beam light, may include:
The light projected from camera lens is separated into N+1 beam light by N number of Amici prism, and wherein N is positive integer.
When light-dividing device includes N number of Amici prism, the light projected from camera lens can be separated into N+ by N number of Amici prism
1 beam light.
Amici prism is one cube then composed by carrying out being coated with multi-coated interference film on the inclined-plane of right-angle prism
Body structure, after light is by multi-coated interference film, the optical element that can be transmitted and be reflected to light does not change light
The Wavelength distribution of line only changes light intensity or polarization direction.
The Transflective of Amici prism is than the transmitted light isolated for light through Amici prism and the beam intensity ratio of reflected light.
As shown in figure 3, a kind of embodiment when being 1 as N, i.e. light-dividing device 20 include 1 Amici prism 201, such as
Shown in arrow in Fig. 3, the light projected from camera lens 10 injects Amici prism 201, and Amici prism 201 will be projected from camera lens 10
Light is separated into two-beam line, and two-beam line injects two imaging sensors 40 respectively, and each imaging sensor 40 will receive
Light be converted to initial pictures and be sent to image processor 30, image processor 30 merges two initial pictures,
Generate blending image.
The light projected from camera lens 10 is separated by 2 beam light, two image sensings by 1 Amici prism 201 as a result,
The light for being greater than the first Intensity threshold for handling light intensity in device 40, another is for handling light intensity less than the second light intensity
The light of threshold value, not only the region high to light intensity had carried out imaging, but also had carried out imaging to the low region of light intensity, so that
The case where excessively bright and excessively dark object can normally be shown in blending image, be imaged relative to an imaging sensor, expands
The dynamic range of imaging, solves the problems, such as color of image distortion.
As shown in figure 4, a kind of embodiment when being 2 as N, i.e. light-dividing device include 2 Amici prisms 201, respectively
For the first Amici prism 201 and the second Amici prism 201.
The light projected from camera lens is separated into N+1 beam light by above-mentioned N number of Amici prism, may include:
The light projected from camera lens is separated into two-beam line by the first Amici prism, wherein the two-beam line isolated
Beam intensity ratio Transflective corresponding with the first Amici prism is than identical；
The strong light of most dim light in two-beam line that first Amici prism is isolated is separated into two by the second Amici prism
Beam light, wherein the beam intensity ratio for the two-beam line isolated Transflective corresponding with the second Amici prism is than identical；
Each imaging sensor receives the Ray Of Light that light-dividing device is isolated, and the light received is converted to initially
Image may include:
Each imaging sensor receives the light not separated by the second Amici prism in the light that the first Amici prism is isolated
The Ray Of Light in two-beam line that line and the second Amici prism are isolated, and the light received is converted into initial graph
Picture, wherein each imaging sensor receives different beam light.
As shown by the arrows in figure 4, the light projected from camera lens 10 injects the first Amici prism 201, the first Amici prism
The light projected from camera lens 10 is separated into two-beam line by 201, and the strong light of the most dim light in two-beam line injects the second light splitting
The strong light of the most dim light received is separated into two-beam line by prism 201, the second Amici prism 201.
Not by the isolated light of the second Amici prism 201 and second point in the light that first Amici prism 201 is isolated
The two-beam line that light prism 201 is isolated injects three imaging sensors 40 respectively, and each imaging sensor 40 will receive
Light is converted to initial pictures and is sent to image processor 30, and image processor 30 merges three initial pictures, raw
At blending image.
The light projected from camera lens 10 is separated into 3 beam light, three image sensings by 2 Amici prisms 201 as a result,
At least one of device 40 is used to handle the light that light intensity is greater than the first Intensity threshold, at least one is for handling light intensity less than the
The light of two Intensity thresholds, not only the region high to light intensity had carried out imaging, but also had carried out at imaging to the low region of light intensity
Reason, so that object excessively bright and excessively dark in blending image can normally be shown, the feelings relative to the imaging of an imaging sensor
Condition expands the dynamic range of imaging, solves the problems, such as color of image distortion.
In one embodiment, Amici prism 201 can be depolarization Amici prism, and depolarization Amici prism makes incidence
The P-polarization component and S-polarization component of light have similar dichroism.Protected as much as possible after the light splitting of depolarization Amici prism
The proportionate relationship of original horizontal polarization and vertical polarization in incident light is held, P-polarization component is separated with the optical characteristics of S-polarization component
Degree < 5%.
P-polarization component and S-polarization component are introduced below: when light penetrates with non-perpendicular angle the table of optical element
When face, transmission and reflection characteristic all relies on polarization phenomena.In this case, the coordinate system used is with containing input and reflection
That plane definition of light beam.If the polarization vector of light is in this plane, referred to as P-polarization component, if polarization
Vector is perpendicular to the plane, then referred to as S-polarization component.
In another embodiment, light-dividing device 20 may include N number of plate beamsplitter mirror, and N number of plate beamsplitter mirror is used for
The light projected from camera lens 10 is separated into N+1 beam light, wherein N is positive integer.
Plate beamsplitter mirror be it is a kind of film is plated on transparent optical plate glass surface, in light by after film,
The optical element that can be transmitted and be reflected to light, does not change the Wavelength distribution of light, only changes light intensity or inclined
Shake direction.
Wherein, the Transflective of plate beamsplitter mirror is than the transmitted light isolated for light through plate beamsplitter mirror and reflected light
Beam intensity ratio.
Since the light splitting principle of plate beamsplitter mirror and the light splitting principle of Amici prism are similar, it is directed to when N is 1
Amici prism 201 in Fig. 3 is replaced with plate beamsplitter mirror referring to Fig. 3 by a kind of embodiment, is directed to when N is 2
Amici prism 201 in Fig. 4 is replaced with plate beamsplitter mirror, details are not described herein referring to fig. 4 by a kind of embodiment.
Since the embodiment of the present invention includes multiple images sensors 40, in order to keep each imaging sensor 40 synchronous, i.e., together
When start expose or terminate to expose simultaneously, as shown in figure 5, video camera provided in an embodiment of the present invention can also include synchronised clock
50, multiple images sensor 40 is electrically connected with synchronised clock 50 respectively, a kind of image generating method provided in an embodiment of the present invention,
Can also include:
Synchronised clock distinguishes tranmitting data register synchronization signal to each imaging sensor.
As a result, by way of tranmitting data register synchronization signal, so that the clock of each imaging sensor is synchronous, it ensure that each
The accuracy of the clock of a imaging sensor further ensures the accuracy for generating image.
The dynamic range of general video camera is 0-70dB, wherein the dynamic range of video camera is one of video camera shooting
In picture, the section that the brightness value of the most bright and most dark object of details is included can be normally shown, the dynamic range of video camera has
Two units, one is multiple, and one is dB, and there are reduction formula, 2 times of ≈ 6dB for the two.
The dynamic range of video camera is bigger, the degree that excessive lightness or darkness object can normally be shown in the same picture
Also bigger, therefore, in order to preferably solve the problems, such as that color of image is distorted, need to make the wide dynamic of the dynamic range of video camera
Range, wherein wide dynamic range 100-120dB.
For the video camera comprising an imaging sensor, the algorithm of the dynamic range of video camera is the strong ground of light
The ratio of the light exposure in the weak place of the light exposure and light of side, due in the embodiment of the present invention, including multiple images sensor
40, therefore, the algorithm of the dynamic range of video camera is the strongest light separated after being divided and most decreased light in image sensing
Light exposure ratio on device, wherein light exposure is the product of light intensity and time for exposure.
Since the maximum dynamic of common camera is 70dB, and the dynamic range of the wide dynamic scene of actual photographed is more than
Therefore 100-120dB in order to make cameras capture to the image of wide dynamic range scene, is needed the dynamic range of video camera
At least increase 30dB, i.e., at least increases by 32 times, that is, the strongest light separated after being divided and most decreased light are in imaging sensor
On light exposure ratio be 32:1 or so.
In the present solution, light intensity is reduced, first by light-dividing device so that each imaging sensor 40 is to light
It will not be overflowed when stronger part photoelectric conversion, that is, increase the dynamic range of video camera；Further by reducing exposure
Time, so that the photoelectric conversion time of imaging sensor 40 shortens, when being further reduced part photoelectric conversion stronger to light
Spilling, that is, further increase the dynamic range of video camera.
It is detailed, it can be determined according to the light intensity of the time for exposure of each imaging sensor 40 and the light received each
The corresponding light exposure of light that a imaging sensor 40 receives.In the beam intensity ratio for the light that each imaging sensor 40 receives
When fixed, can the light according to received by each imaging sensor 40 intensity than determining each correspondence of imaging sensor 40
Exposure ratio, i.e. time for exposure ratio.
Such as: light-dividing device isolates 3 beam light, and the beam intensity ratio of 3 beam light is 8:1:1, in order to make to divide after light splitting
Strongest light and the light exposure ratio of most decreased light on the image sensor out reaches 32:1, can be corresponding by 3 beam light
The time for exposure ratio of imaging sensor 40 is set as 4:4:1, then light received by each imaging sensor 40 after being divided
Ratio be 32:4:1, it is seen then that the strongest light that is separated after light splitting and the light exposure of most decreased light on the image sensor
Ratio is 32:1, i.e., the increased dynamic range ratio of video camera is 32:1, at this point, the dynamic range of video camera increases 32 times,
That is 30dB.
As a result, solving the problems, such as color of image distortion by way of increasing the dynamic range of video camera, compared to logical
The mode of image procossing is crossed to solve the problems, such as that color of image is distorted, without to the distortion color in image in the embodiment of the present invention
The position in region is detected, such as: the position of signal lamp is detected, practicability is improved.
Currently, imaging sensor generally uses roller shutter type Exposure mode to be exposed, roller shutter type Exposure mode is to pass through figure
What the mode exposed line by line as sensor was realized, when exposing beginning, imaging sensor progressive scan is exposed line by line, until
All pixels point is all exposed.Certainly, all movements are completed in a very short period of time.
Since roller shutter type Exposure mode is to be exposed line by line, so that the beginning time for exposure for pixel of not going together is different,
There is the sequence of first post-exposure, therefore, roller shutter type Exposure mode is bad for the imaging effect of moving object, can generate movement
The problem of object deforms, therefore, in order to avoid the generation of this case, in one embodiment, each imaging sensor can
Using the Exposure mode of global formula exposure.
Global formula Exposure mode is to be exposed realization in the same time by all pixels point of imaging sensor, i.e.,
When exposing beginning, all pixels point of imaging sensor starts to collect light, and in end exposure, imaging sensor owns
Pixel does not regather light, since the Exposure mode of global formula exposure is all pixels point while exposing, pixel of not going together
The beginning time for exposure it is identical with the time for exposure is terminated, i.e., there is no the sequences of first post-exposure therefore to avoid generation moving object
The case where body deforms.
In order to avoid the image of generation is rubescent, in one embodiment, video camera provided in an embodiment of the present invention may be used also
To include multiple infrared fileters, the quantity of infrared fileter and the quantity of imaging sensor are identical, and each infrared fileter connects
The Ray Of Light that contracture electro-optical device is isolated, and filter out the infrared light in the light received, wherein each infrared fileter
Receive different beam light；Each imaging sensor receives the Ray Of Light that light-dividing device is isolated, and the light received is turned
Initial pictures are changed to, may include:
Each imaging sensor receives light-dividing device and passes through the Ray Of Light that an infrared fileter projects, and will receive
Light be converted to initial pictures, wherein each imaging sensor receives different beam light.
As indicated by the arrows in fig. 6, light injects light-dividing device 20 from outside by camera lens 10, and light-dividing device 20 will be from mirror
First 10 light projected are separated into multi beam light and project, and the multi beam light of injection injects multiple infrared fileters 60 respectively, often
A infrared fileter 60 filters out the infrared light in the light received and injection, and the multi beam light of injection injects multiple figures respectively
As sensor 40, the light received is converted to initial pictures and is sent to image processor 40 by each imaging sensor 40,
Image processor 30 merges each initial pictures, generates blending image.Light is separated in light-dividing device as a result,
Filtering out for infrared light is carried out later, then carries out subsequent image generation, has achieved the purpose that the image for avoiding generating is rubescent.
It should be noted that the optical path trend in Fig. 6 only indicates the schematic diagram of opticpath, accurate light is not represented
Path.
In order to avoid the image of generation is rubescent, in another embodiment, as shown, provided in an embodiment of the present invention
Video camera can also include infrared fileter, and infrared fileter receives the light projected from camera lens, and filters out the light received
In infrared light, the light projected from camera lens is separated into multi beam light, may include: by above-mentioned light-dividing device
Light-dividing device receives camera lens and passes through the light that infrared fileter projects, and the light received is separated into multi-beam
Line.
As depicted by the arrows in figure 7, light injects infrared fileter 60 from outside by camera lens 10, and infrared fileter 60 connects
The light projected from camera lens 10 is received, the infrared light in the light received and injection are filtered out, the light of injection injects light splitting dress
20 are set, the light projected from infrared fileter 60 is separated into multi beam light and projected by light-dividing device 20, the multi beam light of injection
Multiple images sensor 40 is injected respectively, and the light received is converted to initial pictures and is sent to by each imaging sensor 40
Image processor 40, image processor 30 merge each initial pictures, generate blending image.
Infrared light is carried out before light-dividing device separates light as a result, to filter out, and is then carried out again subsequent
Image generates, and infrared light is carried out before being separated compared to light-dividing device to light and is filtered out, infrared fileter is reduced
60 quantity reduces the cost of video camera.
It should be noted that the optical path trend in Fig. 7 only indicates the schematic diagram of opticpath, accurate light is not represented
Path.
In one implementation, image processor merges each initial pictures, generates blending image, can wrap
It includes:
The initial pictures are determined according to the pixel value of each pixel in the initial pictures for every initial pictures
In the corresponding weight of each pixel；
According to the corresponding weight of each pixel and pixel value, the pixel of same position will be located in every initial pictures
The pixel value of point is merged, and blending image is generated.
Due to including multiple images sensor in the embodiment of the present invention, one initial pictures of each imaging sensor generation,
In order to which multiple initial pictures are permeated an image, it is necessary first to image registration carried out to each initial pictures, correction due to
Slight pixel-shift between each imaging sensor caused by factory or installation will be each by blending algorithm after correction
Initial pictures fusion, generates blending image.
It is detailed, each initial pictures are merged by blending algorithm, generate blending image, it can be with are as follows: at the beginning of every
Beginning image determines that each pixel in the initial pictures is corresponding according to the pixel value of each pixel in the initial pictures
Weight；According to the corresponding weight of each pixel and pixel value, the pixel of same position will be located in every initial pictures
The pixel value of point is merged, and blending image is generated.
Wherein, according to the pixel value of each pixel in the initial pictures, each pixel in the initial pictures is determined
The mode of the corresponding weight of point can be with are as follows: for each pixel in the initial pictures, judge the pixel value of the pixel with
The corresponding target difference range of the difference of presetted pixel value determines target according to the corresponding relationship of preset difference value range and weight
The corresponding weight of identified target difference range is determined as the corresponding weight of the pixel by the corresponding weight of difference range.
According to the corresponding weight of each pixel and pixel value, the pixel of same position will be located in every initial pictures
The pixel value of point is merged, and blending image is generated, can be with are as follows: will be in every initial pictures positioned at the pixel of same position
Pixel value is weighted fusion according to corresponding weight, generates blending image.
Such as: assuming that initial pictures are A, B and C, it is assumed that distinguish in three initial pictures positioned at the pixel of same position H
For pixel I, J and K, the pixel value of pixel I is 100, and corresponding weight is 0.1, and the pixel value of pixel J is 10, corresponding
Weight be 0.3, the pixel value of pixel K is 200, and corresponding weight is 0.5；
Then positioned at the pixel value of the pixel of position H in blending image are as follows: 100 × 0.1+10 × 0.3+200 × 0.5/
(0.1+0.3+0.5)=126.
Blending image is generated by way of being merged each initial pictures as a result,.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (13)
1. a kind of video camera characterized by comprising camera lens, light-dividing device, image processor and multiple images sensor are more
A described image sensor is electrically connected with described image processor respectively, wherein at least one imaging sensor is for handling light
The powerful light in the first Intensity threshold, at least one imaging sensor is for handling light of the light intensity less than the second Intensity threshold
Line,
The light-dividing device, for the light projected from the camera lens to be separated into multi beam light, wherein the quantity of the light
It is identical as the quantity of described image sensor；
Each described image sensor, the Ray Of Light isolated for receiving the light-dividing device, and the light that will be received
Be converted to initial pictures, wherein each described image sensor receives different beam light；
Described image processor generates blending image for merging each initial pictures.
2. video camera according to claim 1, which is characterized in that the light-dividing device includes N number of Amici prism；
N number of Amici prism, for the light projected from the camera lens to be separated into N+1 beam light, wherein N is positive integer.
3. video camera according to claim 2, which is characterized in that the light-dividing device includes the first Amici prism and second
Amici prism；
First Amici prism, for the light projected from the camera lens to be separated into two-beam line, wherein two isolated
The beam intensity ratio of beam light Transflective corresponding with first Amici prism is than identical；
Second Amici prism, the strong light of the most dim light in two-beam line for isolating first Amici prism
It is separated into two-beam line, wherein the beam intensity ratio for the two-beam line isolated Transflective corresponding with second Amici prism
Than identical；
Each described image sensor is not divided by described second for receiving in the light that first Amici prism is isolated
The light and the Ray Of Light in the two-beam line isolated of second Amici prism of prism separation, and will receive
Light is converted to initial pictures, wherein each described image sensor receives different beam light.
4. video camera according to claim 1, which is characterized in that it further include synchronised clock, multiple described image sensors
It is electrically connected respectively with the synchronised clock；
The synchronised clock, for distinguishing tranmitting data register synchronization signal to each imaging sensor.
5. video camera according to claim 1 to 4, which is characterized in that the Exposure mode of each described image sensor
For the exposure of global formula.
6. video camera according to claim 1, which is characterized in that further include multiple infrared fileters, the infrared filtering
The quantity of piece and the quantity of described image sensor are identical；
Each infrared fileter, the Ray Of Light isolated for receiving the light-dividing device, and filter out the light received
Infrared light in line, wherein each infrared fileter receives different beam light；
Each described image sensor for receiving the Ray Of Light projected from an infrared fileter, and will receive
Light be converted to initial pictures, wherein each described image sensor receives different beam light.
7. a kind of image generating method, which is characterized in that be applied to video camera, video camera includes: camera lens, light-dividing device, image
Processor and multiple images sensor, multiple described image sensors are electrically connected with described image processor respectively, and at least one
A imaging sensor is used to handle the light that light intensity is greater than the first Intensity threshold, at least one imaging sensor is for handling light intensity
Less than the light of the second Intensity threshold, which comprises
The light projected from the camera lens is separated into multi beam light by the light-dividing device, wherein the quantity of the light and institute
The quantity for stating imaging sensor is identical；
Each described image sensor receives the Ray Of Light that the light-dividing device is isolated, and the light received is converted to
Initial pictures, wherein each described image sensor receives different beam light；
Described image processor merges each initial pictures, generates blending image.
8. the method according to the description of claim 7 is characterized in that the light-dividing device includes N number of Amici prism, the light splitting
The step of light projected from the camera lens is separated into multi beam light by device, comprising:
The light projected from the camera lens is separated into N+1 beam light by N number of Amici prism, and wherein N is positive integer.
9. according to the method described in claim 8, it is characterized in that, the light-dividing device includes the first Amici prism and second point
The step of light prism, the light projected from the camera lens is separated into N+1 beam light by N number of Amici prism, comprising:
The light projected from the camera lens is separated into two-beam line by first Amici prism, wherein the two-beam isolated
The beam intensity ratio of line Transflective corresponding with first Amici prism is than identical；
The strong light separation of the most dim light in two-beam line that second Amici prism isolates first Amici prism
For two-beam line, wherein the beam intensity ratio for the two-beam line isolated Transflective corresponding with second Amici prism compares phase
Together；
Each described image sensor receives the Ray Of Light that the light-dividing device is isolated, and the light received is turned
The step of being changed to initial pictures, comprising:
Each described image sensor receives in the light that first Amici prism is isolated not by second Amici prism
The Ray Of Light in two-beam line that isolated light and second Amici prism are isolated, and the light that will be received
Be converted to initial pictures, wherein each described image sensor receives different beam light.
10. multiple described images pass the method according to the description of claim 7 is characterized in that video camera further includes synchronised clock
Sensor is electrically connected with the synchronised clock respectively, the method also includes:
The synchronised clock distinguishes tranmitting data register synchronization signal to each imaging sensor.
11. according to any method of claim 7-10, which is characterized in that the Exposure mode of each described image sensor
For the exposure of global formula.
12. described infrared the method according to the description of claim 7 is characterized in that video camera further includes multiple infrared fileters
The quantity of optical filter and the quantity of described image sensor are identical, and each infrared fileter receives the light-dividing device separation
Ray Of Light out, and filter out the infrared light in the light received, wherein each infrared fileter receives different beams
Light；
Each described image sensor receives the Ray Of Light that the light-dividing device is isolated, and the light received is turned
The step of being changed to initial pictures, comprising:
Each described image sensor receives the light-dividing device and passes through the Ray Of Light that an infrared fileter projects, and will connect
The light received is converted to initial pictures, wherein each described image sensor receives different beam light.
13. the method according to the description of claim 7 is characterized in that described image processor melts each initial pictures
The step of closing, generating blending image, comprising:
It is determined in the initial pictures for every initial pictures according to the pixel value of each pixel in the initial pictures
The corresponding weight of each pixel；
According to the corresponding weight of each pixel and pixel value, the pixel of same position will be located in every initial pictures
Pixel value is merged, and blending image is generated.
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| CN201710970575.XA CN109688317A (en) | 2017-10-18 | 2017-10-18 | A kind of video camera and image generating method |
| PCT/CN2018/103788 WO2019076150A1 (en) | 2017-10-18 | 2018-09-03 | Camera and image generation method |
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