CN105611186B - Exposure control method and system based on dual cameras - Google Patents
Exposure control method and system based on dual cameras Download PDFInfo
- Publication number
- CN105611186B CN105611186B CN201510968804.5A CN201510968804A CN105611186B CN 105611186 B CN105611186 B CN 105611186B CN 201510968804 A CN201510968804 A CN 201510968804A CN 105611186 B CN105611186 B CN 105611186B
- Authority
- CN
- China
- Prior art keywords
- target image
- exposure
- area
- image
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/76—Circuitry for compensating brightness variation in the scene by influencing the image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention relates to the technical field of image processing, in particular to an exposure control method and system based on double cameras. The method comprises the following steps: according to the condition of the target image area, determining the exposure weight of a first camera module on a first target image and the exposure weight of a second camera module on a second target image; and controlling and adjusting the light incoming amount of the first camera module and/or the second camera module according to a preset brightness value, so that the exposure brightness values of the first target image and the second target image both meet a preset brightness value range. Therefore, the method and the device can control the exposure degree of each area on the corresponding target image, so that each area on the corresponding target image has proper brightness, and the finally superposed image has high quality, thereby meeting the pursuit of a user on a high-quality image and improving the use experience of the user.
Description
[technical field]
The present invention relates to technical field of image processing more particularly to a kind of exposal control method based on dual camera and it is
System.
[background technique]
When traditional photo terminal (such as mobile phone, tablet computer and computer etc.) is taken pictures, use is all single camera
Scheme, as people are higher and higher to the requirement taken pictures, the technologies such as high pixel, big pixel, large aperture, G camera lens are enumerated in full detail etc., but seemingly
Also it is unable to satisfy the demand of people.And people have found that many animals including humans are all two eyes by observation,
Through multiplicating test, discovery eyes ratio with it is simple eye see object it is apparent, thus, people be based on bionics, will take pictures
The technical solution that terminal uses dual camera to take pictures.
But picture luminance determines the quality of picture quality, brightness embodies the profile of object in picture, and brightness is exposed
It is higher, relatively natural to expose appropriate picture quality for the influence of degree.Therefore, the exposure of dual camera how is controlled to improve figure
The quality of piece is at those skilled in the art's problem to be solved.
[summary of the invention]
The purpose of the present invention aims to solve the problem that at least one above-mentioned problem, provides a kind of spectrum assignment based on dual camera
Method and system.
To realize the purpose, the present invention adopts the following technical scheme:
The present invention provides a kind of exposal control methods based on dual camera comprising following steps:
According to object region situation, determine the first camera module to the exposure weight of first object image and second
Exposure weight of the camera module to the second target image；
According to preset brightness value, control adjusts the entering light of first camera module and/or second camera mould group
Amount, makes the exposure brightness value of the first object image and the second target image all meet preset range of luminance values.
Further, described according to preset brightness value, control adjusts first camera module and/or second takes the photograph
As the light-inletting quantity of head mould group, the exposure brightness value of the first object image and the second target image is made all to meet preset brightness
After the step of being worth range, further includes:
In response to the control instruction of user, the first object image and the superimposed imaging of the second target image are obtained.
Specifically, it is described according to object region situation, determine exposure of first camera module to first object image
In the step of light weight and second camera mould group are to the exposure weight of the second target image, comprising:
The first object image is divided into multiple exposure areas, and to each exposure region on first object image
Domain setting exposure weighted value；
Second target image is divided into multiple exposure areas, and to each exposure region on the second target image
Domain setting exposure weighted value.
Specifically, described be divided into multiple exposure areas for the first object image, and on first object image
In the step of each exposure area setting exposure weighted value, comprising:
Using the intermediate region on the first object image as the first exposure region on the first object image, remove
Between neighboring area other than region as the second exposure region on the first object image；
Weighted value A, the first object are set by the exposure weight of the first exposure region on the first object image
The exposure weight of the second exposure region on image is set as weighted value B；Wherein, weighted value A is greater than weighted value B.
Specifically, described be divided into multiple exposure areas for second target image, and on the second target image
In the step of each exposure area setting exposure weighted value, comprising:
Using the intermediate region on second target image as the first exposure region on second target image, remove
Between neighboring area other than region as the second exposure region on second target image；Wherein, second target image
On the first exposure region and first object image on the first exposure region be the object region on the same area；
Weighted value B is set by the exposure weight of the first exposure region on second target image；And to described
The exposure value and/or exposure weight at each position of the second exposure region on two target images are accordingly arranged.
Disclosed in one embodiment according to the present invention, second exposure region on second target image it is each
The exposure value and/or exposure weight at position carry out during being accordingly arranged, comprising:
Weighted value A is set by the exposure weight of the second exposure region on second target image.
Disclosed in another embodiment according to the present invention, second exposure region on second target image
The exposure value and/or exposure weight at each position carry out during being accordingly arranged, comprising:
A fixed exposure value is set by the continuum in the second exposure region on second target image；
Underface position in the second exposure region on second target image close to the first exposure region is set as weighing
Weight values A.
Disclosed in another embodiment according to the present invention, second exposure region on second target image
The exposure value and/or exposure weight at each position carry out during being accordingly arranged, comprising:
A fixed exposure value is set by the continuum in the second exposure region on second target image；
Weighted value A is set by the more position of the second exposure region high frequency components on second target image.
Specifically, described according to preset brightness value, control adjusts the process of the light-inletting quantity of first camera module
In, comprising:
Obtain the RGB brightness value of first object image in real time by first camera module；
According to the exposure weight of first object image, the current picture brightness value of first object image is calculated；
The current picture brightness value of first object image is compared with preset brightness value, judges working as first object image
Whether preceding picture brightness value is consistent with preset range of luminance values；
If it is not, then control light-inletting quantity is adjusted by the shutter in first camera module, so that first object image
Picture brightness value be consistent with preset range of luminance values；
If so, the picture brightness value to first object image carries out detecting real-time.
Specifically, described according to preset brightness value, control adjusts the process of the light-inletting quantity of the second camera mould group
In, comprising:
Obtain the RGB brightness value of the second target image in real time by the second camera mould group；
According to the exposure weight of the second target image, the current picture brightness value of the second target image is calculated；
The current picture brightness value of second target image is compared with preset brightness value, judges working as the second target image
Whether preceding picture brightness value is consistent with preset range of luminance values；
If it is not, then control light-inletting quantity is adjusted by the shutter in the second camera mould group, so that the second target image
Picture brightness value be consistent with preset range of luminance values；
If so, the picture brightness value to the second target image carries out detecting real-time.
Further, determine the first camera module to first object image according to object region situation described
Exposure weight and second camera mould group to the exposure weight of the second target image the step of before, further includes:
It controls first camera module and second camera mould group carries out initialization process.
Specifically, the control instruction in response to user, obtains the first object image and the second target image is folded
In the step of imaging after adding, comprising:
First object image is obtained by first camera module and by second camera mould group acquisition the
Two target images；
The first object image and the second target image are subjected to splicing, to form stitching image.
Specifically, described carry out splicing for the first object image and the second target image, to form spliced map
In the step of picture, comprising:
The image-region that the first object image is set as A with the weighted value on the second target image is spliced；
Remaining stitching image part selects in the object region at same position the first object image and the
The image-region that the larger side of brightness value is exposed on two target images splices.
Correspondingly, the present invention also provides a kind of Exposure Control Modules based on dual camera comprising:
Exposure analysis module, for determining the first camera module to first object figure according to object region situation
Exposure weight of the exposure weight and second camera mould group of picture to the second target image；
Control adjustment module, for according to preset brightness value, control to adjust first camera module and/or second
The light-inletting quantity of camera module meets the exposure brightness value of the first object image and the second target image all preset bright
Angle value range.
Further, system of the present invention, further includes:
Stacking image module obtains the first object image and the second target for the control instruction in response to user
Imaging after image superposition.
Specifically, the exposure analysis module includes:
First exposure-processed submodule, for the first object image to be divided into multiple exposure areas, and to first
Each exposure area setting exposure weighted value on target image；
Second exposure-processed submodule, for second target image to be divided into multiple exposure areas, and to second
Each exposure area setting exposure weighted value on target image.
Specifically, the first exposure-processed submodule includes:
First division unit, for using the intermediate region on the first object image as the first object image
The first exposure region, the neighboring area in addition to intermediate region is as the second exposure region on the first object image；
First setup unit, for setting weight for the exposure weight of the first exposure region on the first object image
The exposure weight of value A, the second exposure region on the first object image are set as weighted value B；Wherein, weighted value A is greater than power
Weight values B.
Specifically, the second exposure-processed submodule includes:
Second division unit, for using the intermediate region on second target image as second target image
The first exposure region, the neighboring area in addition to intermediate region is as the second exposure region on second target image；Wherein,
The first exposure region on the first exposure region and first object image on second target image is the object region
On the same area；
Second setup unit, for setting weight for the exposure weight of the first exposure region on second target image
Value B；And exposure value and/or exposure weight progress for each position to the second exposure region on second target image
Corresponding setting.
Disclosed in one embodiment according to the present invention, second setup unit includes:
First setting subelement, for the exposure weight of the second exposure region on second target image to be set as weighing
Weight values A.
Disclosed in another embodiment according to the present invention, second setup unit includes:
First fixed setting subelement, for setting the continuum in the second exposure region on second target image
It is set to a fixed exposure value；
The second setting subelement, for by the second exposure region on second target image close to the first exposure region
Underface position is set as weighted value A.
Disclosed in another embodiment according to the present invention, second setup unit includes:
Second fixed setting subelement, for setting the continuum in the second exposure region on second target image
It is set to a fixed exposure value；
Third sets subelement, for the portion that the second exposure region high frequency components on second target image are more
Position is set as weighted value A.
Specifically, the control adjustment module includes:
First acquisition unit, for obtaining the RGB brightness of first object image in real time by first camera module
Value；
First computing unit calculates the current picture of first object image for the exposure weight according to first object image
Face brightness value；
First contrast judgement unit, for by the current picture brightness value of first object image and preset brightness value ratio
It is right, judge whether the current picture brightness value of first object image is consistent with preset range of luminance values；
If it is not, then control light-inletting quantity is adjusted by the shutter in first camera module, so that first object image
Picture brightness value be consistent with preset range of luminance values；
If so, the picture brightness value to first object image carries out detecting real-time.
Specifically, the control adjustment module includes:
Second acquisition unit, for obtaining the RGB brightness of the second target image in real time by the second camera mould group
Value；
Second computing unit calculates the current picture of the second target image for the exposure weight according to the second target image
Face brightness value；
Second contrast judgement unit, for by the current picture brightness value of the second target image and preset brightness value ratio
It is right, judge whether the current picture brightness value of the second target image is consistent with preset range of luminance values；
If it is not, then control light-inletting quantity is adjusted by the shutter in the second camera mould group, so that the second target image
Picture brightness value be consistent with preset range of luminance values；
If so, the picture brightness value to the second target image carries out detecting real-time.
Further, system of the present invention, further includes:
Processing module is controlled, is carried out at initialization for controlling first camera module and second camera mould group
Reason.
Specifically, the stacking image module includes:
Image acquisition unit, for obtaining first object image by first camera module and by described second
Camera module obtains the second target image；
Splicing unit, for the first object image and the second target image to be carried out splicing, to be formed
Stitching image.
Specifically, the splicing unit includes:
First splicing subelement, for the weighted value on the first object image and the second target image to be set as A's
Image-region is spliced；
Second splicing subelement selects same position place in the object region for remaining stitching image part
It states first object image and splices with the image-region for exposing the larger side of brightness value on the second target image.
Compared with prior art, the present invention has following advantage:
The present invention can determine that the first camera module weighs the exposure of first object image according to object region situation
Weight and second camera mould group to the exposure weight of the second target image, then control adjust first camera module and/
Or the light-inletting quantity of second camera mould group, meet the exposure brightness value of the first object image and the second target image all in advance
If range of luminance values, and then make the first object image and the second target image it is superimposed imaging have better quality,
Pursuit with further satisfaction user to high quality graphic improves the using experience degree of user.
In addition, the first object image can be also divided into multiple exposure areas by the present invention, and to first object image
On each exposure area setting exposure weighted value, and second target image is divided into multiple exposure areas, and
To each exposure area setting exposure weighted value on the second target image, and then realize to the area respective objects image Shang Ge
The control of domain exposure further improves final so that each region part of the image being ultimately imaged all has appropriate brightness
The quality of image.
Correspondingly, the weighted value on the first object image and the second target image can be also set as the figure of A by the present invention
As region is spliced, and the image-region that the first object image is set as A with the weighted value on the second target image is mutual
The region of benefit, thus, can each section region in final superimposed imaging all there is appropriate brightness, avoid because of list
The partial exposure blind area of one camera and influence the quality being ultimately imaged, further improve the quality of final image.
Therefore, the present invention can control the depth of exposure in each section region on respective objects image, so that respective objects image
Upper each region part all has appropriate brightness, and then makes finally to be superimposed the image quality with higher generated, to meet
Pursuit of the user to high quality graphic, improves the using experience degree of user.
[Detailed description of the invention]
Fig. 1 is the program flow diagram of one embodiment of the exposal control method based on dual camera in the present invention；
Fig. 2 is the program flow diagram of one embodiment of the exposal control method based on dual camera in the present invention；
Fig. 3 is the program flow diagram of one embodiment of the exposal control method based on dual camera in the present invention；
Fig. 4 is the program flow diagram of one embodiment of the exposal control method based on dual camera in the present invention；
Fig. 5 is the program flow diagram of one embodiment of the exposal control method based on dual camera in the present invention；
Fig. 6 is the structural block diagram of one embodiment of the Exposure Control Module based on dual camera in the present invention；
Fig. 7 is the knot of one embodiment of exposure analysis module in the Exposure Control Module based on dual camera in the present invention
Structure block diagram；
Fig. 8 is an implementation of the first exposure-processed submodule in the Exposure Control Module based on dual camera in the present invention
The structural block diagram of example；
Fig. 9 is an implementation of the second exposure-processed submodule in the Exposure Control Module based on dual camera in the present invention
The structural block diagram of example；
Figure 10 is one embodiment of control adjustment module in the Exposure Control Module based on dual camera in the present invention
Structural block diagram；
Figure 11 is one embodiment of control adjustment module in the Exposure Control Module based on dual camera in the present invention
Structural block diagram；
Figure 12 is the structural block diagram of one embodiment of the Exposure Control Module based on dual camera in the present invention；
Figure 13 is one embodiment of stacking image module in the Exposure Control Module based on dual camera in the present invention
Structural block diagram.
[specific embodiment]
The present invention is further described with exemplary embodiment with reference to the accompanying drawing, the examples of the embodiments are attached
It is shown in figure, in which the same or similar labels are throughly indicated same or similar element or there is same or like function
Element.The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and cannot be construed to pair
Limitation of the invention.In addition, if the detailed description of known technology is for showing the invention is characterized in that unnecessary, then by it
It omits.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange
Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here
To explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal device " both include wireless communication
The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and including receiving and emitting hardware
Equipment, have on bidirectional communication link, can execute two-way communication reception and emit hardware equipment.This equipment
It may include: honeycomb or other communication equipments, shown with single line display or multi-line display or without multi-line
The honeycomb of device or other communication equipments；PCS (Personal Communications Service, PCS Personal Communications System), can
With combine voice, data processing, fax and/or communication ability；PDA (Personal Digital Assistant, it is personal
Digital assistants), it may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day
It goes through and/or GPS (Global Positioning System, global positioning system) receiver；Conventional laptop and/or palm
Type computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its
His equipment." terminal " used herein above, " terminal device " can be it is portable, can transport, be mounted on the vehicles (aviation,
Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on
Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet
Equipment) and/or mobile phone with music/video playing function, it is also possible to the equipment such as smart television, set-top box.
Those skilled in the art of the present technique are appreciated that server used herein above, cloud, remote network devices etc. are general
It reads, there is effects equivalent comprising but it is not limited to computer, network host, single network server, multiple network server collection
Or the cloud that multiple servers are constituted.Here, cloud is by a large amount of computers or network clothes based on cloud computing (Cloud Computing)
Business device is constituted, wherein cloud computing is one kind of distributed computing, and one consisting of a loosely coupled set of computers super
Virtual machine.It, can be by any logical between remote network devices, terminal device and WNS server in the embodiment of the present invention
Letter mode realizes communication, including but not limited to, mobile communication based on 3GPP, LTE, WIMAX, based on TCP/IP, udp protocol
Computer network communication and low coverage wireless transmission method based on bluetooth, Infrared Transmission standard.
It is necessary to first carry out following guiding explanation to application scenarios of the invention and its principle.
In internet, user terminal (customer mobile terminal), network and the server (Web server of such as website are generally comprised
Deng).Wherein user terminal can be the internet mobile terminal of user, such as desktop computer (PC), laptop computer (Laptop), band
There are the smart machines of web page browsing function, such as personal digital assistant (Personal Digital Assisstant, PDA), with
And mobile internet device (Mobile Internet Device, MID) and smart phone (Phone) etc..These mobile terminals
Can be in internet environment, typical as in the Internet environment, request is by another process (process that such as server provides)
A certain service is provided.
Server is usually can be by telecommunication medias such as internets, the typical remote computer system accessed such as internet
System.Moreover, a plurality of clients of the server typically from internet provide service.There is provided service process includes receiving to use
User terminal information and feedback information etc. are collected in the request that family end is sent.Substantially, the information that server serves as computer network mentions
This role of donor.Server is usually located at a side of the service of offer, or is configured by service provider with service content, such
Service provider can such as Internet service company website.
The application scenarios of method and terminal of the invention are to be suitable for information, data receiver and the information of processing
Processor is controller described below, such as CPU etc., to be suitable for Image Acquisition, transmission and the video sensor of information processing
Device be hereinafter the first camera module with illustrate for second camera mould group, such as various intelligent cameras
Head etc..Wherein it is equipped on the first camera module and second camera mould group and each controller through network implementations data interaction
Application program.It should be noted that the description is merely exemplary, the scope of the present invention is not limited to this.
It will be detailed below several skills of the invention proposed to realize above-mentioned scene with above-mentioned principle
The specific embodiment of art scheme.It should be noted that the present invention provides a kind of exposal control method based on dual camera,
This method is described from the visual angle of controller, can will be embodied as by the exposal control method of dual camera by programming based on
Calculation machine program is realized in intelligent camera terminal comprising but be not limited to intelligent camera, mobile phone, tablet computer, desktop computer,
Laptop, various recorders or with camera function other terminals etc..
Refer to attached drawing 1, a kind of exemplary embodiments of the exposal control method based on dual camera of the present invention, packet
Include following steps:
S100 determines the first camera module to the exposure weight of first object image according to object region situation
And second camera mould group is to the exposure weight of the second target image.
Specifically, referring to attached drawing 2, according to object region situation, determine the first camera module to first object
The exposure weight and second camera mould group of image to the process of the exposure weight of the second target image, comprising steps of
The first object image is divided into multiple exposure areas by S200, and to each described on first object image
Exposure area setting exposure weighted value.
Specifically, first being exposed the intermediate region on the first object image as first on the first object image
Light area, the neighboring area in addition to intermediate region is as the second exposure region on the first object image；Then, by described
The exposure weight of the first exposure region on one target image is set as weighted value A, the second exposure on the first object image
The exposure weight in area is set as weighted value B；Wherein, weighted value A is greater than weighted value B.Because one below among image and in image
As be the more interested content of viewer, therefore, the rate of exchange neighboring area that the exposure weight of intermediate region is arranged is higher,
It is the picture quality in order to improve intermediate region, meets the visual custom of viewer.
Second target image is divided into multiple exposure areas by S210, and to each described on the second target image
Exposure area setting exposure weighted value.
Specifically, first being exposed the intermediate region on second target image as first on second target image
Light area, the neighboring area in addition to intermediate region is as the second exposure region on second target image；Wherein, described second
The first exposure region on target image is same on the object region with the first exposure region on first object image
Region；Then, weighted value B is set by the exposure weight of the first exposure region on second target image；And to described
The exposure value and/or exposure weight at each position of the second exposure region on the second target image are accordingly arranged.
It wherein, in one embodiment of the invention, can be by the exposure of the second exposure region on second target image
Weight is set as weighted value A.
It in yet another embodiment of the present invention, can first will be continuous in the second exposure region on second target image
Region is set as a fixed exposure value；Again just by the first exposure region close in the second exposure region on second target image
Lower portion is set as weighted value A.
It in yet another embodiment of the present invention, can first will be continuous in the second exposure region on second target image
Region is set as a fixed exposure value；The position that the second exposure region high frequency components on second target image are more again
It is set as weighted value A.
It should be noted that above-mentioned weighted value A is greater than weighted value B, the exposure weight of second target image is using upper
The mode of stating is arranged, and it is complementary to be set as the image-region forming region of A with the weighted value on the first object image, Jin Erke
Make each section region in final superimposed imaging that all there is appropriate brightness, avoids because the part of single camera exposes
Light blind area and influence the quality being ultimately imaged, to improve the quality of final image.In addition, step S200 and step S210 are without certainty
Sequencing point, can either synchronously or asynchronously carry out.
Further, attached drawing 1 is referred to, the invention also includes step S110, according to preset brightness value, control adjustment institute
The light-inletting quantity for stating the first camera module and/or second camera mould group makes the first object image and the second target image
Exposure brightness value all meet preset range of luminance values.Wherein, the first object image and the second target image can be made
It is all equal with preset brightness value to expose brightness value, the exposure brightness of the first object image and the second target image can also be made
It is worth all in preset range of luminance values namely the exposure brightness value of the first object image and the second target image is all pre-
If threshold range in；In addition, the light-inletting quantity of the first camera module and/or second camera mould group is fast by control adjustment
Door is realized.
Specifically, the step includes described according to preset brightness value, control adjust first camera module into
Light quantity, and control adjust light-inletting quantity two parts process of the second camera mould group；Wherein, attached drawing 3, the control are referred to
The process that system adjusts the light-inletting quantity of first camera module includes: firstly, being obtained in real time by first camera module
The RGB brightness value of first object image is taken, then, according to the exposure weight of first object image, calculates first object image
The current picture brightness value of first object image is compared with preset brightness value, judges first object by current picture brightness value
Whether the current picture brightness value of image is consistent with preset range of luminance values, if it is not, then passing through first camera module
On shutter adjust control light-inletting quantity so that the picture brightness value of first object image is consistent with preset range of luminance values, if
It is that detecting real-time then is carried out to the picture brightness value of first object image；It is carried out in the picture brightness value to first object image
During detecting real-time, mainly detect whether its picture brightness is greater than preset threshold；It is greater than in advance when detecting picture brightness
If when threshold value, i.e., can return to the exposure weight according to first object image again, calculate the current picture brightness of first object image
Then the program of value carries out down-stream in succession again, with this come ensure the picture brightness value of first object image with it is preset bright
Angle value range is consistent.
Similarly, control adjusts the light-inletting quantity of the second camera mould group and control adjusts first camera module
The principle process of light-inletting quantity is the same；And control adjusts light-inletting quantity and the control adjustment described first of the second camera mould group
Point of the two processes of the light-inletting quantity of camera module without inevitable sequencing, can synchronize also asynchronous execution.
Further, attached drawing 4 is referred to, method of the present invention further comprises the steps of:
S120 obtains the first object image and the second target image is superimposed in response to the control instruction of user
Imaging.
Specifically, referring to attached drawing 5, the control instruction in response to user obtains the first object image and
The process of the superimposed imaging of two target images, comprising steps of
S500 obtains first object image by first camera module and is obtained by the second camera mould group
Take the second target image.
Specifically, the controller can obtain preferable exposure by the first camera module of control and second camera mould group
The first object image and the second target image of brightness, it is ensured that each section area on first object image and the second target image
Domain all has preferably exposure brightness, to ensure spliced imaging quality with higher.
The first object image and the second target image are carried out splicing, to form stitching image by S510.
Specifically, the weighted value on the first object image and the second target image is first set as A's when splicing
Image-region is spliced, and then, remaining stitching image part selects in the object region described the at same position
One target image splices with the image-region for exposing the larger side of brightness value on the second target image.The process can ensure that most
Each region part of the image being imaged eventually all has preferable brightness, and then improves the quality of final image.
Further, attached drawing 4 is referred to, method of the present invention further comprises the steps of:
S130, controls first camera module and second camera mould group carries out initialization process.
Specifically, first camera module and second camera mould group all have sensor, initialization is mainly phase
The initialization of inductive sensing device；The initialization procedure can ensure that first object image and the exposure brightness of the second target image etc. are related
Data it is accurate.
The present invention can determine that the first camera module weighs the exposure of first object image according to object region situation
Weight and second camera mould group to the exposure weight of the second target image, then control adjust first camera module and/
Or the light-inletting quantity of second camera mould group, meet the exposure brightness value of the first object image and the second target image all in advance
If range of luminance values, and then make the first object image and the second target image it is superimposed imaging have better quality,
Pursuit with further satisfaction user to high quality graphic improves the using experience degree of user.
In addition, the first object image can be also divided into multiple exposure areas by the present invention, and to first object image
On each exposure area setting exposure weighted value, and second target image is divided into multiple exposure areas, and
To each exposure area setting exposure weighted value on the second target image, and then realize to the area respective objects image Shang Ge
The control of domain exposure further improves final so that each region part of the image being ultimately imaged all has appropriate brightness
The quality of image.
Meanwhile the weighted value on the first object image and the second target image can be also set as the image of A by the present invention
Region is spliced, and the image-region that the first object image is set as A with the weighted value on the second target image is complementary
Region, thus, can each section region in final superimposed imaging all there is appropriate brightness, avoid because single
The partial exposure blind area of camera and influence the quality being ultimately imaged, further improve the quality of final image.
Correspondingly, the function modoularization thinking according to computer software, the present invention also provides one kind to be based on dual camera
Exposure Control Module namely a kind of controller of the exposal control method based on dual camera.Attached drawing 6 is referred to, is had below
Body discloses the concrete function that the module that this system includes and each module are realized.The system includes:
Exposure analysis module 11, for determining the first camera module to first object according to object region situation
Exposure weight of the exposure weight and second camera mould group of image to the second target image.
Specifically, referring to attached drawing 7, the exposure analysis module 11 includes:
First exposure-processed submodule 111, for the first object image to be divided into multiple exposure areas, and to
Each exposure area setting exposure weighted value on one target image.
Wherein, attached drawing 8 is referred to, the first exposure-processed submodule 111 includes:
First division unit 101, for using the intermediate region on the first object image as the first object figure
As the first upper exposure region, the neighboring area in addition to intermediate region is as the second exposure region on the first object image.
First setup unit 103, for setting the exposure weight of the first exposure region on the first object image to
The exposure weight of weighted value A, the second exposure region on the first object image are set as weighted value B；Wherein, weighted value A is big
In weighted value B.
It should be noted that because lower section is usually the more interested content of viewer among image and in image, because
This, it is to improve centre that the rate of exchange neighboring area that the exposure weight of intermediate region is arranged the first setup unit 103 is higher
The picture quality in region meets the visual custom of viewer.
Second exposure-processed submodule 112, for second target image to be divided into multiple exposure areas, and to
Each exposure area setting exposure weighted value on two target images.
Wherein, attached drawing 9 is referred to, the second exposure-processed submodule 112 includes:
Second division unit 102, for using the intermediate region on second target image as the second target figure
As the first upper exposure region, the neighboring area in addition to intermediate region is as the second exposure region on second target image；
Wherein, the first exposure region on second target image and the first exposure region on first object image are the target image
The same area on region.
Second setup unit 104, for setting the exposure weight of the first exposure region on second target image to
Weighted value B；And exposure value and/or exposure weight for each position to the second exposure region on second target image
Accordingly it is arranged.
In one embodiment of the invention, second setup unit 104 includes: the first setting subelement, and being used for will
The exposure weight of the second exposure region on second target image is set as weighted value A.
In yet another embodiment of the present invention, second setup unit 104 includes: the first fixed setting subelement,
For setting a fixed exposure value for the continuum in the second exposure region on second target image；Second setting
Unit, for the underface position in the second exposure region on second target image close to the first exposure region to be set as weighing
Weight values A.
In yet another embodiment of the present invention, second setup unit 104 includes: the second fixed setting subelement,
For setting a fixed exposure value for the continuum in the second exposure region on second target image；Third setting
Unit, for setting weighted value A for the more position of the second exposure region high frequency components on second target image.
It should be noted that weighted value A is greater than weighted value B, the exposure of second target image in above three embodiments
Light weight is arranged using above-mentioned three kinds of modes, and the image-region shape of A can be set as with the weighted value on the first object image
At region complementation, and then can make each section region in final superimposed imaging that all there is appropriate brightness, avoid because
The partial exposure blind area of single camera and influence the quality being ultimately imaged, to improve the quality of final image.
Control adjustment module 12, for according to preset brightness value, control adjusts first camera module and/or the
The light-inletting quantity of two camera modules meets the exposure brightness value of the first object image and the second target image all preset
Range of luminance values.Wherein, can make the exposure brightness value of the first object image and the second target image all with preset brightness
It is worth equal, can also makes the exposure brightness value of the first object image and the second target image all in preset range of luminance values
The exposure brightness value of the interior namely described first object image and the second target image is all in preset threshold range；In addition, the
The light-inletting quantity of one camera module and/or second camera mould group is realized by control adjustment shutter.
Specifically, attached drawing 10 is referred to, it is described during control adjusts the light-inletting quantity of first camera module
The functional module of its effect includes in control adjustment module 12:
First acquisition unit 121, the RGB for obtaining first object image in real time by first camera module are bright
Angle value.
First computing unit 123 calculates the current of first object image for the exposure weight according to first object image
Picture brightness value.
First contrast judgement unit 125, for by the current picture brightness value of first object image and preset brightness value
It compares, judges whether the current picture brightness value of first object image is consistent with preset range of luminance values；If it is not, then passing through institute
State shutter in the first camera module and adjust control light-inletting quantity so that the picture brightness value of first object image with it is preset bright
Angle value range is consistent；If so, the picture brightness value to first object image carries out detecting real-time.
Meanwhile attached drawing 11 is referred to, and during control adjusts the light-inletting quantity of the second camera mould group, the control
The functional module of its effect includes in system adjustment module 12:
Second acquisition unit 122, the RGB for obtaining the second target image in real time by the second camera mould group are bright
Angle value.
Second computing unit 124 calculates the current of the second target image for the exposure weight according to the second target image
Picture brightness value.
Second contrast judgement unit 126, for by the current picture brightness value of the second target image and preset brightness value
It compares, judges whether the current picture brightness value of the second target image is consistent with preset range of luminance values；If it is not, then passing through institute
State shutter in second camera mould group and adjust control light-inletting quantity so that the picture brightness value of the second target image with it is preset bright
Angle value range is consistent；If so, the picture brightness value to the second target image carries out detecting real-time.
It should be noted that control adjusts light-inletting quantity and control adjustment first camera shooting of the second camera mould group
The principle process of the light-inletting quantity of head mould group is the same；And control adjusts adjusting with control for the light-inletting quantity of the second camera mould group
Related function module of the light-inletting quantity of whole first camera module during the two without inevitable successive job order it
Point, also asynchronous execution can be synchronized.
Further, attached drawing 12, system of the present invention are referred to, further includes:
Stacking image module 13 obtains the first object image and the second mesh for the control instruction in response to user
The superimposed imaging of logo image.
Specifically, referring to attached drawing 13, the stacking image module 13 includes:
Image acquisition unit 131, for obtaining first object image by first camera module and by described
Second camera mould group obtains the second target image.
Specifically, described image acquiring unit 131 can by control the first camera module and second camera mould group come
Obtain the first object image and the second target image of preferably exposure brightness, it is ensured that on first object image and the second target image
Each section region all there is preferably exposure brightness, to ensure spliced imaging quality with higher.
Splicing unit 132, for the first object image and the second target image to be carried out splicing, with shape
At stitching image.
Wherein, the splicing unit 132 includes: the first splicing subelement, for by the first object image with
The image-region that weighted value on second target image is set as A is spliced；Second splicing subelement, for remaining stitching image
Part selects to expose brightness on the first object image and the second target image at same position in the object region
The image-region for being worth a larger side splices.The splicing unit 132 can ensure that each region part of the image being ultimately imaged
All there is preferable brightness, and then improve the quality of final image
Further, attached drawing 12, system of the present invention are referred to, further includes:
Processing module 14 is controlled, is carried out at initialization for controlling first camera module and second camera mould group
Reason.
Specifically, first camera module and second camera mould group all have sensor, the control processing module
14 mainly control the initialization of respective sensor；The control processing module 14 can ensure that first object image and the second target figure
Picture exposes the accurate of the related datas such as brightness.
The present invention can determine that the first camera module weighs the exposure of first object image according to object region situation
Weight and second camera mould group to the exposure weight of the second target image, then control adjust first camera module and/
Or the light-inletting quantity of second camera mould group, meet the exposure brightness value of the first object image and the second target image all in advance
If range of luminance values, and then make the first object image and the second target image it is superimposed imaging have better quality,
Pursuit with further satisfaction user to high quality graphic improves the using experience degree of user.
In addition, the first object image can be also divided into multiple exposure areas by the present invention, and to first object image
On each exposure area setting exposure weighted value, and second target image is divided into multiple exposure areas, and
To each exposure area setting exposure weighted value on the second target image, and then realize to the area respective objects image Shang Ge
The control of domain exposure further improves final so that each region part of the image being ultimately imaged all has appropriate brightness
The quality of image.
Meanwhile the weighted value on the first object image and the second target image can be also set as the image of A by the present invention
Region is spliced, and the image-region that the first object image is set as A with the weighted value on the second target image is complementary
Region, thus, can each section region in final superimposed imaging all there is appropriate brightness, avoid because single
The partial exposure blind area of camera and influence the quality being ultimately imaged, further improve the quality of final image.
In the instructions provided here, although the description of a large amount of detail.It is to be appreciated, however, that of the invention
Embodiment can practice without these specific details.In some embodiments, it is not been shown in detail well known
Methods, structures and technologies, so as not to obscure the understanding of this specification.
Although having been illustrated with some exemplary embodiments of the invention above, those skilled in the art will be managed
Solution, in the case where not departing from the principle of the present invention or spirit, can make a change these exemplary embodiments, of the invention
Range is defined by the claims and their equivalents.
Claims (18)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510968804.5A CN105611186B (en) | 2015-12-22 | 2015-12-22 | Exposure control method and system based on dual cameras |
| CN201811626472.2A CN109660738B (en) | 2015-12-22 | 2015-12-22 | Exposure control method and system based on dual cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510968804.5A CN105611186B (en) | 2015-12-22 | 2015-12-22 | Exposure control method and system based on dual cameras |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811626472.2A Division CN109660738B (en) | 2015-12-22 | 2015-12-22 | Exposure control method and system based on dual cameras |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105611186A CN105611186A (en) | 2016-05-25 |
| CN105611186B true CN105611186B (en) | 2019-02-12 |
Family
ID=55990698
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510968804.5A Expired - Fee Related CN105611186B (en) | 2015-12-22 | 2015-12-22 | Exposure control method and system based on dual cameras |
| CN201811626472.2A Expired - Fee Related CN109660738B (en) | 2015-12-22 | 2015-12-22 | Exposure control method and system based on dual cameras |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811626472.2A Expired - Fee Related CN109660738B (en) | 2015-12-22 | 2015-12-22 | Exposure control method and system based on dual cameras |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105611186B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106375679A (en) * | 2016-11-30 | 2017-02-01 | 努比亚技术有限公司 | Exposure method and device |
| US10530991B2 (en) | 2017-01-28 | 2020-01-07 | Microsoft Technology Licensing, Llc | Real-time semantic-aware camera exposure control |
| CN106851122B (en) * | 2017-02-27 | 2020-02-18 | 上海兴芯微电子科技有限公司 | Calibration method and device for automatic exposure parameters based on double-camera system |
| CN106878625B (en) * | 2017-04-19 | 2019-10-11 | 宇龙计算机通信科技(深圳)有限公司 | Dual camera synchronous exposure method and system |
| EP3611914B1 (en) | 2017-06-09 | 2025-11-26 | Huawei Technologies Co., Ltd. | Method and apparatus for photographing image |
| CN107295256A (en) | 2017-06-23 | 2017-10-24 | 华为技术有限公司 | A kind of image processing method, device and equipment |
| CN107592471A (en) * | 2017-10-13 | 2018-01-16 | 维沃移动通信有限公司 | A kind of high dynamic range images image pickup method and mobile terminal |
| CN109417604A (en) * | 2017-11-30 | 2019-03-01 | 深圳市大疆创新科技有限公司 | Variation calibration method, binocular vision system and computer readable storage medium |
| CN112989866B (en) * | 2019-12-02 | 2024-04-09 | 浙江宇视科技有限公司 | Object recognition method, device, electronic device and readable storage medium |
| CN117135470B (en) * | 2023-02-23 | 2024-06-14 | 荣耀终端有限公司 | Shooting method, electronic equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780840A (en) * | 2014-01-21 | 2014-05-07 | 上海果壳电子有限公司 | High-quality imaging double camera shooting and imaging device and method thereof |
| CN103905731A (en) * | 2014-03-26 | 2014-07-02 | 武汉烽火众智数字技术有限责任公司 | Broadband dynamic image collection method and system |
| CN104202535A (en) * | 2014-06-30 | 2014-12-10 | 杭州光典医疗器械有限公司 | Automatic exposure method and device |
| CN104333708A (en) * | 2014-11-28 | 2015-02-04 | 广东欧珀移动通信有限公司 | Photographing method, photographing device and terminal |
| CN104853091A (en) * | 2015-04-30 | 2015-08-19 | 广东欧珀移动通信有限公司 | Picture taking method and mobile terminal |
| US9204039B2 (en) * | 2013-01-07 | 2015-12-01 | Huawei Technologies Co., Ltd. | Image processing method and apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969534A (en) * | 2009-07-27 | 2011-02-09 | 鸿富锦精密工业（深圳）有限公司 | Method and system for realizing regional exposure of picture in photographic equipment |
| US20130070143A1 (en) * | 2011-09-20 | 2013-03-21 | Samsung Electronics Co., Ltd. | Display apparatus and method |
| CN103873772B (en) * | 2014-03-03 | 2016-03-02 | 努比亚技术有限公司 | Mobile terminal and shooting method thereof |
| CN104917950B (en) * | 2014-03-10 | 2018-10-12 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN104954689B (en) * | 2015-06-30 | 2018-06-26 | 努比亚技术有限公司 | A kind of method and filming apparatus that photo is obtained using dual camera |
-
2015
- 2015-12-22 CN CN201510968804.5A patent/CN105611186B/en not_active Expired - Fee Related
- 2015-12-22 CN CN201811626472.2A patent/CN109660738B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9204039B2 (en) * | 2013-01-07 | 2015-12-01 | Huawei Technologies Co., Ltd. | Image processing method and apparatus |
| CN103780840A (en) * | 2014-01-21 | 2014-05-07 | 上海果壳电子有限公司 | High-quality imaging double camera shooting and imaging device and method thereof |
| CN103905731A (en) * | 2014-03-26 | 2014-07-02 | 武汉烽火众智数字技术有限责任公司 | Broadband dynamic image collection method and system |
| CN104202535A (en) * | 2014-06-30 | 2014-12-10 | 杭州光典医疗器械有限公司 | Automatic exposure method and device |
| CN104333708A (en) * | 2014-11-28 | 2015-02-04 | 广东欧珀移动通信有限公司 | Photographing method, photographing device and terminal |
| CN104853091A (en) * | 2015-04-30 | 2015-08-19 | 广东欧珀移动通信有限公司 | Picture taking method and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105611186A (en) | 2016-05-25 |
| CN109660738B (en) | 2021-01-12 |
| CN109660738A (en) | 2019-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105611186B (en) | Exposure control method and system based on dual cameras | |
| EP4440104A2 (en) | Method and system for near-eye focal plane overlays for 3d perception of content on 2d displays | |
| WO2021208706A1 (en) | High dynamic range image composition method and device, image processing chip and aerial camera | |
| KR101725884B1 (en) | Automatic processing of images | |
| US20170048438A1 (en) | Wearable device, control apparatus, photographing control method and automatic imaging apparatus | |
| EP3386185B1 (en) | Electronic imaging device and electronic imaging method | |
| US9959841B2 (en) | Image presentation control methods and image presentation control apparatuses | |
| US9057896B1 (en) | Orientation variable polarization | |
| CN105335932B (en) | Multiplex image acquisition combination method and system | |
| JP2018007150A (en) | Imaging apparatus, control method for imaging apparatus, and program | |
| CN111107265A (en) | Image processing method and device, computer readable medium and electronic equipment | |
| JP7269910B2 (en) | Shooting control method, device, storage medium and system for intelligent shooting system | |
| WO2018214838A1 (en) | Surveillance image capture method, apparatus, and system | |
| JP2010016826A (en) | System and method for efficiently performing image processing operations | |
| JP7110378B2 (en) | METHOD AND PROGRAM FOR PROVIDING AUGMENTED REALITY IMAGE USING DEPTH DATA | |
| EP3249999B1 (en) | Intelligent matching method for filter and terminal | |
| US11425312B2 (en) | Image processing program, and image processing system causing a server to control synthesis of a real space image and a virtual object image | |
| US10491810B2 (en) | Adaptive control of image capture parameters in virtual reality cameras | |
| US9456148B1 (en) | Multi-setting preview for image capture | |
| US20120320144A1 (en) | Video modification system and method | |
| US20170163852A1 (en) | Method and electronic device for dynamically adjusting gamma parameter | |
| CN111263081A (en) | Method and apparatus for determining exposure statistic, storage medium, and electronic apparatus | |
| US10372287B2 (en) | Headset device and visual feedback method and apparatus thereof | |
| US12108143B2 (en) | Portable imaging device | |
| CN114449250B (en) | Method and device for determining viewing position of user relative to naked-eye 3D display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220808 Address after: No. 1201, 12 / F, building 6, No. 599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610094 Patentee after: Chengdu panorama Intelligent Technology Co.,Ltd. Address before: 100088 room 112, block D, 28 new street, new street, Xicheng District, Beijing (Desheng Park) Patentee before: BEIJING QIHOO TECHNOLOGY Co.,Ltd. Patentee before: Qizhi software (Beijing) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |