CN103780840B - Two camera shooting image forming apparatus of a kind of high-quality imaging and method thereof - Google Patents
Two camera shooting image forming apparatus of a kind of high-quality imaging and method thereof Download PDFInfo
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Abstract
The present invention proposes two camera shooting image forming apparatus of a kind of high-quality imaging and method thereof, in shooting process, obtain high-quality imaging by the cooperation of dual camera. The dual camera being arranged on portable equipment, comprises main camera and auxiliary camera, the parameter of first initialize dual camera; During shooting, main camera carries out focusing and light-metering; Light-metering data are sent to Background control module; Described Background control module is different according to picture imaging demand, adjusts the acquisition parameters of main camera and auxiliary camera, comprises exposure, shutter time; Complete to open shutter shooting after described optimum configurations completes simultaneously; Described Background control module obtains main imaging from main camera, obtains secondary imaging from auxiliary camera; According to described picture imaging demand, for this main imaging and this pair imaging with different technologies details, carry out Images uniting overlap-add procedure, thus realize the high-quality imaging effect of height stabilization, higher latitude.
Description
Technical field
The present invention relates to a kind of imaging device, in particular to two camera shooting image forming apparatus of a kind of high-quality imaging.
Background technology
Existing portable equipment generally all uses single camera technology to realize photography imaging. And single pick-up lens is due to the limitation of sensitive chip performance, the imaging photo latitude usually making to obtain is low, compared with professional camera, easily loses details in a large number under high contrast scene, causes picture distortion. Secondly, due to the volumetric constraint of portable equipment, cause camera aperture less. At light when not good or half-light, imaging difficulty, it is difficult to obtain stable imaging picture clearly. The camera of current portable equipment, such as mobile phone, aperture is less, it is easy to the imaging problem such as picture shake, smear occurs, cannot realize effective optical anti-vibration. For reaching the technique effect of stabilization, it is possible to by increasing hardware component, but cost is higher, and is not inconsistent with lightening mobile phone development trend, and the stabilization on software, realizing only by image post-processed, effect is not satisfactory. In addition, the camera of existing portable equipment and professional camera have very big gap, the camera of such as mobile phone has the photo that 1,300 ten thousand pixels then can only provide at most 1,300 ten thousand pixels, and well below the imaging of professional camera, this is the restriction of the hardware index being subject to single camera.
Summary of the invention
In order to solve the restriction being subject to existing camera technology that above-mentioned existing portable equipment camera exists, imaging effect all has not enough technical problem in precision, latitude and stability.
The present invention proposes a kind of high-quality imaging device realizing height stabilization, higher latitude and pixel based on dual camera imaging superposition technology.
The present invention proposes two camera shooting image forming apparatus of a kind of high-quality imaging, it has the dual camera device being arranged on portable equipment, comprise main camera and auxiliary camera, described main camera and described auxiliary camera in shooting process, by the imaging worked in coordination and carry out high-quality; Background control module, when receiving shooting, described main camera carries out the light-metering data focused and obtain after light-metering, different according to picture imaging demand, adjusts the acquisition parameters of described main camera and described auxiliary camera; After completing described optimum configurations, open shutter shooting simultaneously; Described Background control module obtains main imaging from described main camera, obtains secondary imaging from described auxiliary camera; According to described picture imaging demand, for having the described main imaging of different technologies details and described secondary imaging, carry out Images uniting overlap-add procedure, obtain the high-quality imaging output of stabilization, high latitude.
Further providing two camera shooting image forming apparatus of a kind of high-quality imaging, its picture imaging demand at least comprises:: high latitude imaging, stabilization imaging, half-light imaging, high pixel imaging.
For different described picture imaging demands, the focus under same environment, described main camera obtains the imaging of different exposure with described auxiliary camera in shooting process.
When high latitude imaging taken by needs, described auxiliary camera and described main camera are focused with focus; Described acquisition parameters is set to main camera for high flash ranging light, and auxiliary camera is for dark portion light-metering; Main camera obtains the main imaging of high exposure, and auxiliary camera obtains the secondary imaging of low exposure, by the Images uniting overlap-add procedure of main imaging and secondary imaging, final imaging all has good image quality details at high light or shaded side.
When stabilization imaging taken by needs, described main camera and described auxiliary camera are taken simultaneously, obtain two under-exposed imagings respectively, i.e. main imaging and secondary imaging, then synthesis superposition process is carried out for described two imagings, the imaging obtaining Correct exposure exports, and owing to the photo of under-exposure needs the shutter time significantly to reduce, thus realizes the technique effect of stabilization.
When half-light imaging taken by needs, the half-light region that main camera and auxiliary camera are taken simultaneously, obtain two imagings of different exposure value respectively, then described two imagings are carried out synthesis superposition process, thus realizes the more accurate half-light imaging in the short period and export.
When high pixel imaging taken by needs, auxiliary camera and main camera are focused with focus, and the normal light-metering simultaneously of main camera and auxiliary camera is set and shooting simultaneously obtains main imaging and pair imaging, two imagings of gained are carried out graphic operation process, thus acquisition is more clear, the imaging effect of bigger precision. Such as when described main camera and described auxiliary camera adopt 5,000,000 pixel respectively, obtained the imaging being equal to 1,300 ten thousand pixel camera head shootings by graphic operation process and export.
Present invention also offers the method for two shooting imagings of a kind of high-quality imaging, it obtains high-quality imaging by the cooperation of dual camera; The parameter of first initialize dual camera; During shooting, main camera carries out focusing and light-metering; Then light-metering data are sent to Background control module; Described Background control module, different according to picture imaging demand, adjust the acquisition parameters of main camera and auxiliary camera; Complete to open shutter shooting after described acquisition parameters arranges simultaneously; Described Background control module obtains main imaging from main camera, obtains secondary imaging from auxiliary camera; According to described picture imaging demand, for this main imaging and this pair imaging with different technologies details, carry out Images uniting overlap-add procedure; Obtain the high-quality imaging output of height stabilization, high latitude.
Further provide the method for two shooting imagings of a kind of high-quality imaging, its picture imaging demand comprise following one or more: high latitude imaging, stabilization imaging, half-light imaging, high pixel imaging.
For different described picture imaging demands, the focus under same environment, when dual camera is taken, obtain the imaging of different exposure.
When high latitude imaging taken by needs, described auxiliary camera and described main camera are focused with focus; Described acquisition parameters is set to main camera for high flash ranging light, and auxiliary camera is for dark portion light-metering; Main camera obtains the main imaging of high exposure, and auxiliary camera obtains the secondary imaging of low exposure, by the synthesis overlap-add procedure of main imaging and secondary imaging, obtaining the imaging all at high light and shade place with good image quality details and export.
When stabilization imaging taken by needs, described main camera and described auxiliary camera are taken simultaneously, obtain two under-exposed imagings respectively, and then described two imagings carry out synthesis overlap-add procedure, and the stabilization imaging obtaining Correct exposure exports. Owing to the photo of under-exposure needs the shutter time significantly to reduce, thus realize stabilization effect.
When half-light imaging taken by needs, described main camera and described auxiliary camera take half-light region simultaneously, obtain two imagings of different exposure value respectively, then synthesis overlap-add procedure is carried out for these two imagings, obtain half-light imaging accurately in the short period of time and export.
When high pixel imaging taken by needs, described auxiliary camera and described main camera are focused with focus, and the light-metering simultaneously of described main camera and described auxiliary camera is set and takes and obtain two imagings, these two imagings are carried out graphic operation process, and the imaging obtaining clear and big precision exports. Such as, when adopting described main camera and described auxiliary camera to adopt 5,000,000 pixel respectively, obtained the imaging being equal to 1,300 ten thousand pixel camera heads shootings by graphic operation process and export.
By program to the control of main camera and auxiliary camera, mutually supplement and coordinate, automatically acquisition parameters is regulated, such as parameters such as exposure, shutter times, shooting obtains the image that two have different technologies details, by image processing algorithm, carries out pixel superposition, reach the imaging effect of final high-quality, i.e. the effect of high definition, the imaging effect of higher pixel under the effect of higher latitude HDR, highly stabilization effect, half-light.
Two camera shooting image forming apparatus of the present invention, high-quality imaging technique comprises the technique effect of the following aspects:
1, dual camera can obtain the imaging effect of higher latitude:
For the focus under same environment, obtaining the imaging of different exposure during shooting, carry out synthesis superposition, final imaging all has good image quality details at high light or shaded side.
2, dual camera stabilization technology:
Use two cameras to take simultaneously and obtain under-exposed imaging picture, then carry out software superposition to obtain the imaging effect of Correct exposure. Owing to the photo of under-exposure needs the shutter time significantly to reduce, thus realize stabilization effect.
3, dual camera half-light imaging technique
The image using two cameras simultaneously to take, then carries out software superposition, thus realizes the shooting quality of the more accurate half-light in the short period.
4, dual camera can take the image effect of higher pixel:
Use two cameras, after taking pictures, the two of gained images are carried out graphic operation simultaneously, thus acquisition is more clear, the imaging effect of bigger precision. The photograph of the camera shooting of such as two 5,000,000 pixels is equal to the imaging effect of 1,300 ten thousand pixel camera head shootings.
Accompanying drawing explanation
Two camera shooting image forming apparatus schematic diagram of Fig. 1 high-quality imaging.
Embodiment
As shown in Figure 1, the present invention provides two camera shooting image forming apparatus of a kind of high-quality imaging, it has the dual camera being placed in portable equipment, comprises main camera 1 and auxiliary camera 2, fits in, by main camera and auxiliary camera, the imaging effect that picture improves photo.
Such as, when needs adopt portable equipment, mobile phone, when making a video recording, first, camera is carried out Initialize installation; During shooting, main camera 1 carries out focusing and light-metering; Then light-metering data are sent to Background control module 3; Described Background control module 3, different according to picture imaging demand, adjust the acquisition parameters of main camera 1 and auxiliary camera 2; Complete to open shutter shooting after described acquisition parameters arranges simultaneously; Background control module 3 obtains main imaging from main camera 1, obtains secondary imaging from auxiliary camera 2; According to described picture imaging demand, for this main imaging and this pair imaging with different technologies details, carry out Images uniting overlap-add procedure; Obtain the high-quality imaging output of height stabilization, high latitude.
Idiographic flow is as follows:
Open camera, carry out the initialize program of camera;
Opening camera software preview interface, main camera 1 carries out focusing and light-metering; It is sent to Background control module 3 by the data of light-metering;
Control module 3 is different according to shooting object, adjusts the corresponding acquisition parameters of master/auxiliary camera. After optimum configurations completes, open shutter shooting simultaneously. Such as: under the pattern that high latitude is taken pictures, arranging main camera 1 for high flash ranging light, auxiliary camera 2 is for dark portion light-metering.
Obtain picture one from main camera 1, obtain picture two from auxiliary camera 2.
According to image imaging demand, carrying out different graphic operations for image one and image two, the imaging obtaining high-quality exports.
Just various picture imaging demand is described below.
When high latitude imaging taken by needs, described auxiliary camera 2 and described main camera 1 are focused with focus; Described acquisition parameters is set to main camera 1 for high flash ranging light, and auxiliary camera 2 is for dark portion light-metering; Main camera 1 obtains the main imaging of high exposure, and auxiliary camera 2 obtains the secondary imaging of low exposure, by the Images uniting overlap-add procedure of main imaging and secondary imaging, final imaging all has good image quality details at high light or shaded side.
When stabilization imaging taken by needs, described main camera 1 and described auxiliary camera 2 are taken simultaneously, obtain two under-exposed imagings respectively, i.e. main imaging and secondary imaging, then synthesis superposition process is carried out for described two imagings, the imaging obtaining Correct exposure exports, and owing to the photo of under-exposure needs the shutter time significantly to reduce, thus realizes the technique effect of stabilization.
When half-light imaging taken by needs, the half-light region that main camera 1 and auxiliary camera 2 are taken simultaneously, obtain two imagings of different exposure value respectively, then described two imagings are carried out synthesis superposition process, thus realizes the more accurate half-light imaging in the short period and export.
When high pixel imaging taken by needs, auxiliary camera 2 and main camera 1 are focused with focus, and the normal light-metering simultaneously of main camera 1 and auxiliary camera 2 is set and shooting simultaneously obtains main imaging and pair imaging, two imagings of gained are carried out graphic operation process, thus acquisition is more clear, the imaging effect of bigger precision. Such as when described main camera 1 and described auxiliary camera 2 adopt 5,000,000 pixel respectively, obtained the imaging being equal to 1,300 ten thousand pixel camera head shootings by graphic operation process and export.
For the process of the main imaging under various imaging demand and secondary imaging, it is possible to adopt synthesis superposition, details enhancing, contrast strengthen, color enhancing etc., thus obtain the imaging effect of more high-quality.
This Background control module 3 according to the light-metering data obtained, can also adjust the acquisition parameters of main camera 1 and auxiliary camera 2, adopts arbitrary or combinationally uses the parameter of above four kinds of imaging demand. After shooting, the main imaging and the secondary imaging that obtain will carry out image procossing, can adopt arbitrary or combinationally use the processing mode of above four kinds of imaging demand, such as Images uniting superposition, details enhancing, contrast strengthen, color enhancing, point control etc. of making an uproar, thus obtain the high-quality imaging effect of height stabilization, higher latitude.
The present invention's application is not limited to above-mentioned enumerated property, and all improvement to these technology and conversion all should belong in the claimed scope of the present invention.
Claims (4)
1. two camera shooting image forming apparatus of a high-quality imaging, it is characterized in that: there is the dual camera device being arranged on portable equipment, comprise main camera and auxiliary camera, described main camera and described auxiliary camera in shooting process, by the imaging worked in coordination and carry out high-quality; Background control module, when receiving shooting, described main camera carries out the light-metering data focused and obtain after light-metering, different according to picture imaging demand, adjusts the acquisition parameters of described main camera and described auxiliary camera; After completing described optimum configurations, open shutter shooting simultaneously; Described Background control module obtains main imaging from described main camera, obtains secondary imaging from described auxiliary camera; According to described picture imaging demand, for having the described main imaging of different technologies details and described secondary imaging, carry out Images uniting overlap-add procedure, obtain the high-quality imaging output of stabilization, high latitude, wherein,
Described picture imaging demand comprise following one or more: high latitude imaging, stabilization imaging, half-light imaging, high pixel imaging;
Different described picture imaging demands, the focus under same environment, described main camera and described auxiliary camera are obtained to the imaging of different exposure when taking;
When high latitude imaging taken by needs, described auxiliary camera and described main camera are focused with focus, described acquisition parameters is set to main camera for high flash ranging light, auxiliary camera is for dark portion light-metering, main camera obtains the main imaging of high exposure, auxiliary camera obtains the secondary imaging of low exposure, by the synthesis overlap-add procedure of main imaging and secondary imaging, obtaining the imaging all at high light and shade place with good image quality details and export;
When stabilization imaging taken by needs, described main camera and described auxiliary camera are taken simultaneously, obtaining under-exposed main imaging and secondary imaging respectively, then carry out synthesis overlap-add procedure for described main imaging and described secondary imaging, the stabilization imaging obtaining Correct exposure exports;
When half-light imaging taken by needs, described main camera and described auxiliary camera take half-light region simultaneously, obtain the main imaging of different exposure value and secondary imaging respectively, described main imaging and secondary imaging are carried out overlap-add procedure, obtain half-light imaging accurately in the short period of time and export;
When high pixel imaging taken by needs, described auxiliary camera and described main camera are focused with focus, and the light-metering simultaneously of described main camera and described auxiliary camera is set and takes and obtain main imaging and secondary imaging, described main imaging and described secondary imaging are carried out graphic operation process, and the imaging obtaining clear and big precision exports.
2. two camera shooting image forming apparatus of high-quality imaging according to claim 1, it is characterized in that, when described main camera and described auxiliary camera adopt 5,000,000 pixel respectively, obtained the imaging being equal to 1,300 ten thousand pixel camera heads shootings by graphic operation process and export.
3. the method for two shooting imagings of a high-quality imaging, it is characterised in that: obtain high-quality imaging by the cooperation of dual camera; The parameter of first initialize dual camera; During shooting, main camera carries out focusing and light-metering; Then light-metering data are sent to Background control module; Described Background control module, different according to picture imaging demand, adjust the acquisition parameters of main camera and auxiliary camera; Complete to open shutter shooting after described acquisition parameters arranges simultaneously; Described Background control module obtains main imaging from main camera, obtains secondary imaging from auxiliary camera; According to described picture imaging demand, for this main imaging and this pair imaging with different technologies details, carry out Images uniting overlap-add procedure; Obtain the high-quality imaging output of height stabilization, high latitude, wherein,
Described picture imaging demand comprise following one or more: high latitude imaging, stabilization imaging, half-light imaging, high pixel imaging;
For different described picture imaging demands, the focus under same environment, when described dual camera is taken, obtain the imaging of different exposure;
When high latitude imaging taken by needs, described auxiliary camera and described main camera are focused with focus; Described acquisition parameters is set to main camera for high flash ranging light, and auxiliary camera is for dark portion light-metering; Main camera obtains the main imaging of high exposure, and auxiliary camera obtains the secondary imaging of low exposure, by the synthesis overlap-add procedure of main imaging and secondary imaging, obtaining the imaging all at high light and shade place with good image quality details and export;
When stabilization imaging taken by needs, described main camera and described auxiliary camera are taken simultaneously, obtain two under-exposed imagings respectively, and then described two imagings carry out synthesis overlap-add procedure, and the stabilization imaging obtaining Correct exposure exports;
When half-light imaging taken by needs, described main camera and described auxiliary camera take half-light region simultaneously, obtain two imagings of different exposure value respectively, then synthesis overlap-add procedure is carried out for these two imagings, obtain half-light imaging accurately in the short period of time and export;
When high pixel imaging taken by needs, described auxiliary camera and described main camera are focused with focus, and the light-metering simultaneously of described main camera and described auxiliary camera is set and takes and obtain two imagings, these two imagings are carried out graphic operation process, and the imaging obtaining clear and big precision exports.
4. the method for two shooting imagings of high-quality imaging according to claim 3, it is characterized in that, when described main camera and described auxiliary camera adopt 5,000,000 pixel respectively, obtained the imaging being equal to 1,300 ten thousand pixel camera heads shootings by graphic operation process and export.
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