CN105163039A - Control method and control device - Google Patents
Control method and control device Download PDFInfo
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- CN105163039A CN105163039A CN201510601728.4A CN201510601728A CN105163039A CN 105163039 A CN105163039 A CN 105163039A CN 201510601728 A CN201510601728 A CN 201510601728A CN 105163039 A CN105163039 A CN 105163039A
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Abstract
The invention discloses a control method. The method comprises the following steps of: acquiring light intensity information; partitioning a photographing preview image according to the light intensity information; determining exposure parameters of the photographing preview image in each region according to a predetermined strategy; respectively performing exposure control on each region of the photographing preview image based on the exposure parameters of each region, and obtaining the image. The invention also discloses a control device. By the technical scheme of the invention, framing photographing time of a high dynamic range (HDR) image can be reduced, service efficiency of sensors is improved, source generation of noise is reduced, and user experience is improved.
Description
Technical field
The present invention relates to image processing techniques, be specifically related to a kind of control method and device.
Background technology
At present, most of electronic equipment (as mobile phone, panel computer etc.) is all provided with camera function, the brightness degree scope of the imageing sensor in electronic equipment is generally 256-1024, and this is inadequate often for brightness range actual in actual life.In prior art, the mode of photomontage mainly comprises following several: utilize high dynamic range images (HighDynamicRange, HDR) technology, the general photo synthesis adopting 2 to 3 different exposure parameters; Utilize real-time HDR technology, different exposure parameters is taked in employing interlacing scan, adjacent rows, synthesizes a HDR picture in real time; Utilize twin-lens technology, two camera lenses adopt different exposure parameters, synthesize a HDR picture.But the mode of above-mentioned photomontage all needs to use multiple pictures synthesis, often there is the phenomenons such as the unnecessary or information dropout of information.
In addition, the mode of existing photomontage, in order to look after the imaging of dark portion, when overall light-metering is darker, can adopt higher photosensitivity (ISO), like this to high light part be waste, a lot of noises can be produced.Another problem brought by more than two photo splits needs period of reservation of number longer, easily occurs causing image blurring situation because of user's hand shaking, and unfavorable to shooting moving object.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of control method and device, can reduce HDR framing shooting time, improves transducer service efficiency, and the source reducing noise generates, and promotes the experience of user.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of control method, described method comprises:
Gather intensity signal;
According to described intensity signal, subregion is carried out to preview image of taking pictures;
Utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region;
Spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
In such scheme, preferably, describedly according to described intensity signal, subregion is carried out to preview image of taking pictures, comprising:
The intensity signal meeting same preset range is divided into a class light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
In such scheme, preferably, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, comprising:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
In such scheme, preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprises one of following scheme:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
In such scheme, preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprising:
Be respectively each region and upper and lower cmos sensor and signal amplifier are set;
By controlling the shutter release time in each region the switching time of upper and lower CMOS tube;
The ISO in each region is controlled by signal amplifier.
In such scheme, preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprising:
Each pixel for each region all arranges independently cmos sensor and independently signal amplifier up and down;
By controlling the shutter release time corresponding to each pixel the switching time of upper and lower CMOS tube;
The ISO corresponding to each pixel is controlled by signal amplifier.
Present invention also offers a kind of control device, described control device comprises:
Collecting unit, for gathering intensity signal;
Zoning unit, for carrying out subregion according to described intensity signal to preview image of taking pictures;
Determining unit, for utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region;
Control unit, carries out spectrum assignment respectively for each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
In such scheme, preferably, described zoning unit, also for:
The intensity signal meeting same preset range is divided into a light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
In such scheme, preferably, described determining unit, also for:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
In such scheme, preferably, described control unit, also for:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
In such scheme, preferably, described control unit comprises:
First arranges subelement, arranges upper and lower cmos sensor and signal amplifier for being respectively each region;
First controls subelement, for the shutter release time by controlling each region the switching time of upper and lower CMOS tube;
Second controls subelement, for being controlled the ISO in each region by signal amplifier.
In such scheme, preferably, described control unit comprises:
Second arranges subelement, for all arranging independently cmos sensor up and down for each pixel in each region;
3rd controls subelement, for the shutter release time by controlling the switching time of upper and lower CMOS tube corresponding to each pixel;
4th controls subelement, for being controlled the ISO corresponding to each pixel by signal amplifier.
Control method provided by the invention and device, gather intensity signal; According to described intensity signal, subregion is carried out to preview image of taking pictures; Utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region; Spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image; So, can expose simultaneously, decrease HDR framing shooting time, improve transducer service efficiency preview image piecemeal of taking pictures, the source reducing noise generates, and improves the experience of user.
Accompanying drawing explanation
The realization flow schematic diagram of a kind of control method that Fig. 1 provides for the embodiment of the present invention;
The realization flow schematic diagram of the another kind of control method that Fig. 2 provides for the embodiment of the present invention;
The realization flow schematic diagram of another control method that Fig. 3 provides for the embodiment of the present invention;
The realization flow schematic diagram of another control method that Fig. 4 provides for the embodiment of the present invention;
The simplified diagram of spectrum assignment strategy while of the employing piecemeal that Fig. 5 (a) provides for the embodiment of the present invention;
The schematic diagram that the image pixel in each region is started exposure at synchronization, do not terminated in the same time that Fig. 5 (b) provides for the embodiment of the present invention;
A kind of composition structural representation controlling to pass device that Fig. 6 provides for the embodiment of the present invention;
The composition structural representation of the another kind of control device that Fig. 7 provides for the embodiment of the present invention;
The composition structural representation of another control device that Fig. 8 provides for the embodiment of the present invention.
Embodiment
In order to more at large understand feature of the present invention and technology contents, below in conjunction with accompanying drawing, realization of the present invention is described in detail, the use of appended accompanying drawing explanation only for reference, is not used for limiting the present invention.
Embodiment one
The realization flow schematic diagram of a kind of control method that Fig. 1 provides for the embodiment of the present invention, control method in the present embodiment is applied in electronic equipment, camera function supported by described electronic equipment, and in a preferred embodiment of the invention, described control method mainly comprises the following steps:
Step 101: gather intensity signal.
In the present embodiment, intensity signal can be gathered by transducer.
Step 102: subregion is carried out to preview image of taking pictures according to described intensity signal.
Preferably, describedly according to described intensity signal, subregion is carried out to preview image of taking pictures, can comprise:
The intensity signal meeting same preset range is divided into a class light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
Such as, N=3, describedly carries out subregion according to described intensity signal to the image in image preview interface, can comprise:
Regional determination light intensity being more than or equal to first threshold is first area;
Regional determination light intensity being less than or equal to Second Threshold is second area;
Light intensity being greater than the regional determination that Second Threshold is less than first threshold is the 3rd region.
Here, described first area can be understood as specular, and described second area can be understood as low light district (or half-light district), and described 3rd region can be understood as Zhong Guangqu.
Step 103: utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region.
Preferably, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
Here, still to be divided into N=3 region to illustrate in step 102, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For the view data in the 3rd region, aperture time is set to reference time length, ISO is set to benchmark ISO, aperture is set to benchmark aperture;
For the view data of first area, aperture time is set to the first duration, ISO is set to an ISO, aperture is set to the first aperture; Wherein, described first duration is less than described reference time length, and a described ISO is less than described benchmark ISO, and described first aperture is less than described benchmark aperture;
For the view data of second area, aperture time is set to the second duration, ISO is set to the 2nd ISO, aperture is set to the second aperture; Wherein, described second duration is greater than described reference time length, and described 2nd ISO is greater than described benchmark ISO, and described second aperture is greater than described benchmark aperture.
Step 104: spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
Here, the image obtained can be meet pre-conditioned image, that is, described pre-conditioned can be meet HDR definition, namely in a pictures, both contained high light part, contained again dark portion details; Further, overexposure, dark portion details can also not retain high light part.
Preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprises one of following scheme:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
In such scheme, preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, can comprise:
Be respectively each region and upper and lower cmos sensor and signal amplifier are set;
By controlling the shutter release time in each region the switching time of upper and lower CMOS tube;
The ISO in each region is controlled by signal amplifier.
That is, in order to save cost, the spectrum assignment of piecemeal can be realized; Concrete, with district (or block) for unit, come point CMOS tube being used in the shutter release time controlling each region and the signal amplifier for the ISO that controls each region.
In such scheme, preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, can comprise:
Each pixel for each region all arranges independently cmos sensor and independently signal amplifier up and down;
By controlling the shutter release time corresponding to each pixel the switching time of upper and lower CMOS tube;
The ISO corresponding to each pixel is controlled by signal amplifier.
That is, when chip size and economic condition allow, can divide equally for each pixel and be used in the control CMOS tube of shutter release time and the signal amplifier for control ISO.
In the present embodiment, described electronic equipment can be the equipment supporting camera function, as mobile phone, panel computer, camera, TV etc.
Control method described in the present embodiment, gathers intensity signal; According to described intensity signal, subregion is carried out to preview image of taking pictures; Utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region; Spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image; So, can expose simultaneously, decrease HDR framing shooting time, improve transducer service efficiency preview image piecemeal of taking pictures, the source reducing noise generates, and improves the experience of user.
Embodiment two
The realization flow schematic diagram of the another kind of control method that Fig. 2 provides for the embodiment of the present invention, control method in the present embodiment is applied in electronic equipment, camera function supported by described electronic equipment, and in a preferred embodiment of the invention, described control method mainly comprises the following steps:
Step 201: in advance upper and lower cmos sensor and signal amplifier are set for N number of region; Wherein, N is positive integer.
Preferably, N=3.
That is, in order to save cost, the spectrum assignment of piecemeal can be realized; Concrete, with district (or block) for unit, come point CMOS tube being used in the shutter release time controlling each region and the signal amplifier for the ISO that controls each region.
Step 202: gather intensity signal.
In the present embodiment, intensity signal can be gathered by transducer.
Step 203: N number of region is divided into preview image of taking pictures according to described intensity signal.
Preferably, describedly according to described intensity signal, subregion is carried out to preview image of taking pictures, can comprise:
The intensity signal meeting same preset range is divided into a class light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
Such as, N=3, is describedly divided into N number of region according to described intensity signal to preview image of taking pictures, and can comprise:
Regional determination light intensity being more than or equal to first threshold is first area;
Regional determination light intensity being less than or equal to Second Threshold is second area;
Light intensity being greater than the regional determination that Second Threshold is less than first threshold is the 3rd region.
Here, described first area can be understood as specular, and described second area can be understood as low light district (or half-light district), and described 3rd region can be understood as Zhong Guangqu.
Step 204: utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region.
Preferably, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
Here, still to be divided into N=3 region to illustrate in step 203, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For the view data in the 3rd region, aperture time is set to reference time length, ISO is set to benchmark ISO, aperture is set to benchmark aperture;
For the view data of first area, aperture time is set to the first duration, ISO is set to an ISO, aperture is set to the first aperture; Wherein, described first duration is less than described reference time length, and a described ISO is less than described benchmark ISO, and described first aperture is less than described benchmark aperture;
For the view data of second area, aperture time is set to the second duration, ISO is set to the 2nd ISO, aperture is set to the second aperture; Wherein, described second duration is greater than described reference time length, and described 2nd ISO is greater than described benchmark ISO, and described second aperture is greater than described benchmark aperture.
Step 205: spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
Preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, can comprise:
By controlling the shutter release time in each region the switching time of upper and lower CMOS tube;
The ISO in each region is controlled by signal amplifier.
Here, the image obtained can be meet pre-conditioned image, that is, described pre-conditioned can be meet HDR definition, namely in a pictures, both contained high light part, contained again dark portion details; Further, overexposure, dark portion details can also not retain high light part.
Preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprises one of following scheme:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
In the present embodiment, described electronic equipment can be the equipment supporting camera function, as mobile phone, panel computer, camera, TV etc.
Control method described in the present embodiment, arranges upper and lower cmos sensor and signal amplifier for N number of region in advance; Gather intensity signal; According to described intensity signal, N number of region is divided into preview image of taking pictures; Utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region; Spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, by controlling the shutter release time in each region the switching time of upper and lower CMOS tube, controlled the ISO in each region by signal amplifier, and obtain image; So, can expose simultaneously, decrease HDR framing shooting time, improve transducer service efficiency preview image piecemeal of taking pictures, the source reducing noise generates, and provides cost savings, improves the experience of user.
Embodiment three
The realization flow schematic diagram of another control method that Fig. 3 provides for the embodiment of the present invention, control method in the present embodiment is applied in electronic equipment, camera function supported by described electronic equipment, and in a preferred embodiment of the invention, described control method mainly comprises the following steps:
Step 301: be that each pixel arranges independently cmos sensor and independently signal amplifier up and down in advance.
That is, when chip size and economic condition allow, can divide equally for each pixel and be used in the control CMOS tube of shutter release time and the signal amplifier for control ISO.
Step 302: gather intensity signal.
In the present embodiment, intensity signal can be gathered by transducer.
Step 303: subregion is carried out to preview image of taking pictures according to described intensity signal.
Preferably, describedly according to described intensity signal, subregion is carried out to preview image of taking pictures, can comprise:
The intensity signal meeting same preset range is divided into a class light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
Such as, N=3, describedly carries out subregion according to described intensity signal to the image in image preview interface, can comprise:
Regional determination light intensity being more than or equal to first threshold is first area;
Regional determination light intensity being less than or equal to Second Threshold is second area;
Light intensity being greater than the regional determination that Second Threshold is less than first threshold is the 3rd region.
Here, described first area can be understood as specular, and described second area can be understood as low light district (or half-light district), and described 3rd region can be understood as Zhong Guangqu.
Step 304: utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region.
Preferably, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
Here, still to be divided into N=3 region to illustrate in step 303, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For the view data in the 3rd region, aperture time is set to reference time length, ISO is set to benchmark ISO, aperture is set to benchmark aperture;
For the view data of first area, aperture time is set to the first duration, ISO is set to an ISO, aperture is set to the first aperture; Wherein, described first duration is less than described reference time length, and a described ISO is less than described benchmark ISO, and described first aperture is less than described benchmark aperture;
For the view data of second area, aperture time is set to the second duration, ISO is set to the 2nd ISO, aperture is set to the second aperture; Wherein, described second duration is greater than described reference time length, and described 2nd ISO is greater than described benchmark ISO, and described second aperture is greater than described benchmark aperture.
Step 305: spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
Preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, can comprise:
By controlling the shutter release time corresponding to each pixel the switching time of upper and lower CMOS tube;
The ISO corresponding to each pixel is controlled by signal amplifier.
Here, the image obtained can be meet pre-conditioned image, that is, described pre-conditioned can be meet HDR definition, namely in a pictures, both contained high light part, contained again dark portion details; Further, overexposure, dark portion details can also not retain high light part.
Preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprises one of following scheme:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
In the present embodiment, described electronic equipment can be the equipment supporting camera function, as mobile phone, panel computer, camera, TV etc.
Control method described in the present embodiment is that each pixel arranges independently cmos sensor and independently signal amplifier up and down in advance; Gather intensity signal; According to described intensity signal, subregion is carried out to preview image of taking pictures; Utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region; Spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, by controlling the shutter release time corresponding to each pixel the switching time of upper and lower CMOS tube; Control the ISO corresponding to each pixel by signal amplifier, and obtain image; So, can not only expose preview image piecemeal of taking pictures simultaneously, decrease HDR framing shooting time, and when chip size and economic condition allow, can control respectively the exposure parameter of each pixel, improve control precision, improve the experience of user.
Embodiment four
The realization flow schematic diagram of another control method that Fig. 4 provides for the embodiment of the present invention, control method in the present embodiment is applied in electronic equipment, camera function supported by described electronic equipment, and in a preferred embodiment of the invention, described control method mainly comprises the following steps:
Step 401: gather intensity signal.
In the present embodiment, intensity signal can be gathered by transducer.
Step 402: be divided into specular, low light district, Zhong Guangqu according to described intensity signal preview image of taking pictures.
Preferably, describedly according to described intensity signal, subregion is carried out to preview image of taking pictures, can comprise:
The intensity signal meeting same preset range is divided into a class light intensity region;
Described preview image of taking pictures is divided into 3 regions by corresponding described light intensity region.
Such as, be describedly divided into specular, low light district, Zhong Guangqu according to described intensity signal preview image of taking pictures, can comprise:
Regional determination light intensity being more than or equal to first threshold is specular;
Regional determination light intensity being less than or equal to Second Threshold is low light district;
Light intensity being greater than the regional determination that Second Threshold is less than first threshold is Zhong Guang district.
Step 403: utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region.
Preferably, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For described 3 regions configure different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
Here, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, can comprise:
For the view data in Zhong Guang district, aperture time is set to reference time length, ISO is set to benchmark ISO, aperture is set to benchmark aperture;
For the view data of specular, aperture time is set to the first duration, ISO is set to an ISO, aperture is set to the first aperture; Wherein, described first duration is less than described reference time length, and a described ISO is less than described benchmark ISO, and described first aperture is less than described benchmark aperture;
For the view data in low light district, aperture time is set to the second duration, ISO is set to the 2nd ISO, aperture is set to the second aperture; Wherein, described second duration is greater than described reference time length, and described 2nd ISO is greater than described benchmark ISO, and described second aperture is greater than described benchmark aperture.
That is, for specular, adopt little aperture; For low light district, adopt large aperture; For Zhong Guangqu, aperture in employing.
Step 404: spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
Here, the image obtained can be meet pre-conditioned image, that is, described pre-conditioned can be meet HDR definition, namely in a pictures, both contained high light part, contained again dark portion details; Further, overexposure, dark portion details can also not retain high light part.
Preferably, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprises one of following scheme:
Scheme 1, at synchronization, exposure is started to the image pixel in each region, do not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
Scheme 2, to the image pixel in each region not starting exposure in the same time, terminate at synchronization, and corresponding aperture time met to the exposure time in each region; Or
Scheme 3, to the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region is synchronization, and corresponding aperture time is met to the exposure time in each region.
Certainly, in practical application, when spectrum assignment is carried out respectively to each region of described preview image of taking pictures, be not limited to above these 3 kinds of schemes enumerated, do not repeat them here.
The simplified diagram of spectrum assignment strategy while of the employing piecemeal that Fig. 5 (a) provides for the embodiment of the present invention, as shown in Fig. 5 (a), first, according to intensity signal, preview image is divided into three regions, i.e. specular, Zhong Guang district and low light district, then, exposure analysis control is carried out to preview image; Subsequently, determine the exposure parameter in each region, concrete, for half-light district, adopt high ISO, low no-delay gate; For specular, adopt low ISO, high-speed shutter; For Zhong Guangqu, adopt standard ISO, standard speed shutter.Certainly, Fig. 5 (a) only shows the simplified diagram of spectrum assignment strategy while of adopting piecemeal, and specific implementation process can with reference to step 401 ~ step 404.The schematic diagram that the image pixel in each region is started exposure at synchronization, do not terminated in the same time that Fig. 5 (b) provides for the embodiment of the present invention, as can be seen from Fig. 5 (b), when taking pictures, the shooting button time of pressing is T0, the specular end exposure time is that T1, Zhong Guang district is T2 the end exposure time, low light district is T3 the end exposure time, and T1 < T2 < T3.
In the present embodiment, described electronic equipment can be the equipment supporting camera function, as mobile phone, panel computer, camera, TV etc.
Control method described in the present embodiment, gathers intensity signal; Specular, low light district, Zhong Guangqu is divided into according to described intensity signal preview image of taking pictures; Utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region; Spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image; So, can select different exposure parameters according to different shading values, to taking pictures, preview image piecemeal exposes simultaneously, decreases HDR framing shooting time, and the picture obtained meets the definition of HDR, improves the experience of user.
Embodiment five
The composition structural representation of a kind of control device that Fig. 6 provides for the embodiment of the present invention, as shown in Figure 6, described control device comprises:
Collecting unit 61, for gathering intensity signal;
Zoning unit 62, for carrying out subregion according to described intensity signal to preview image of taking pictures;
Determining unit 63, for utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region;
Control unit 64, carries out spectrum assignment respectively for each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
Preferably, described zoning unit 62, also for:
The intensity signal meeting same preset range is divided into a light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
Preferably, described determining unit 63, also for:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
Preferably, described control unit 64, also for:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
Those skilled in the art are to be understood that, the function of each unit in the control device of the present embodiment, can refer to the associated description of aforementioned control method and understand, each unit in the control device of the present embodiment, realizing by realizing the analog circuit of the function described in the embodiment of the present invention, also can be realized by the operation of the software of the function of execution described in the embodiment of the present invention on intelligent terminal.
It should be noted that, the control device of the present embodiment can be arranged in electronic equipment, and the function of collecting unit 61 described in the embodiment of the present invention, zoning unit 62, determining unit 63, control unit 64 can by the central processing unit (CPU of described control device, CentralProcessingUnit), microprocessor (MPU, MicroProcessorUnit) or Digital Signal Processing (DSP, DigitalSignalProcessor) chip etc. realize.
Adopt the control device of the present embodiment, can expose simultaneously, decrease HDR framing shooting time, improve transducer service efficiency preview image piecemeal of taking pictures, the source reducing noise generates, and improves the experience of user.
Embodiment six
The composition structural representation of the another kind of control device that Fig. 7 provides for the embodiment of the present invention, as shown in Figure 7, described control device comprises:
Collecting unit 61, for gathering intensity signal;
Zoning unit 62, for carrying out subregion according to described intensity signal to preview image of taking pictures;
Determining unit 63, for utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region;
Control unit 64, carries out spectrum assignment respectively for each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image;
Wherein, described control unit 64 comprises:
First arranges subelement 641, arranges upper and lower cmos sensor and signal amplifier for being respectively each region;
First controls subelement 642, for the shutter release time by controlling each region the switching time of upper and lower CMOS tube;
Second controls subelement 643, for being controlled the ISO in each region by signal amplifier.
Preferably, described zoning unit 62, also for:
The intensity signal meeting same preset range is divided into a light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
Preferably, described determining unit 63, also for:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
Preferably, described control unit 64, also for:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
Those skilled in the art are to be understood that, the function of each unit in the control device of the present embodiment, can refer to the associated description of aforementioned control method and understand, each unit in the control device of the present embodiment, realizing by realizing the analog circuit of the function described in the embodiment of the present invention, also can be realized by the operation of the software of the function of execution described in the embodiment of the present invention on intelligent terminal.
It should be noted that, the control device of the present embodiment can be arranged in electronic equipment, and the function of each subelement of collecting unit 61, zoning unit 62, determining unit 63, control unit 64 and control unit 64 described in the embodiment of the present invention can be realized by CPU, MPU of described control device or dsp chip etc.
Adopt the control device of the present embodiment, can expose simultaneously, decrease HDR framing shooting time, improve transducer service efficiency preview image piecemeal of taking pictures, the source reducing noise generates, and provides cost savings, improves the experience of user.
Embodiment seven
The composition structural representation of the another kind of control device that Fig. 8 provides for the embodiment of the present invention, as shown in Figure 8, described control device comprises:
Collecting unit 61, for gathering intensity signal;
Zoning unit 62, for carrying out subregion according to described intensity signal to preview image of taking pictures;
Determining unit 63, for utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region;
Control unit 64, carries out spectrum assignment respectively for each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image;
Wherein, described control unit 64 comprises:
Second arranges subelement 644, for all arranging independently cmos sensor up and down for each pixel in each region;
3rd controls subelement 645, for the shutter release time by controlling the switching time of upper and lower CMOS tube corresponding to each pixel;
4th controls subelement 646, for being controlled the ISO corresponding to each pixel by signal amplifier.
Preferably, described zoning unit 62, also for:
The intensity signal meeting same preset range is divided into a light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
Preferably, described determining unit 63, also for:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
Preferably, described control unit 64, also for:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
Those skilled in the art are to be understood that, the function of each unit in the control device of the present embodiment, can refer to the associated description of aforementioned control method and understand, each unit in the control device of the present embodiment, realizing by realizing the analog circuit of the function described in the embodiment of the present invention, also can be realized by the operation of the software of the function of execution described in the embodiment of the present invention on intelligent terminal.
It should be noted that, the control device of the present embodiment can be arranged in electronic equipment, and the function of each subelement of collecting unit 61, zoning unit 62, determining unit 63, control unit 64 and control unit 64 described in the embodiment of the present invention can be realized by CPU, MPU of described control device or dsp chip etc.
Adopt the control device of the present embodiment, can not only expose preview image piecemeal of taking pictures simultaneously, decrease HDR framing shooting time, and can control respectively the exposure parameter of each pixel, improve control precision, improve the experience of user.
In several embodiment provided by the present invention, should be understood that, disclosed method, device and electronic equipment, can realize by another way.Apparatus embodiments described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, and as: multiple unit or assembly can be in conjunction with, maybe can be integrated into another system, or some features can be ignored, or do not perform.In addition, the coupling each other of shown or discussed each part or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of equipment or unit or communication connection can be electrical, machinery or other form.
The above-mentioned unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, also can be distributed in multiple network element; Part or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can all be integrated in a processing unit, also can be each unit individually as a unit, also can two or more unit in a unit integrated; Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add SFU software functional unit realizes.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: movable storage device, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
Or, if the above-mentioned integrated unit of the embodiment of the present invention using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprises some instructions and performs all or part of of method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server or the network equipment etc.).And aforesaid storage medium comprises: movable storage device, ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (12)
1. a control method, described method comprises:
Gather intensity signal;
According to described intensity signal, subregion is carried out to preview image of taking pictures;
Utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region;
Spectrum assignment is carried out respectively in each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
2. method according to claim 1, is characterized in that, describedly carries out subregion according to described intensity signal to preview image of taking pictures, and comprising:
The intensity signal meeting same preset range is divided into a class light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
3. method according to claim 2, is characterized in that, the described predetermined policy that utilizes determines the exposure parameter of described image in each region, comprising:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, photosensitivity ISO, aperture.
4. method according to claim 1, is characterized in that, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprises one of following scheme:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
5. method according to claim 1, is characterized in that, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprising:
Be respectively each region and upper and lower cmos sensor and signal amplifier are set;
By controlling the shutter release time in each region the switching time of upper and lower CMOS tube;
The ISO in each region is controlled by signal amplifier.
6. method according to claim 1, is characterized in that, spectrum assignment is carried out respectively in the described each region of exposure parameter to described preview image of taking pictures based on each region, comprising:
Each pixel for each region all arranges independently cmos sensor and independently signal amplifier up and down;
By controlling the shutter release time corresponding to each pixel the switching time of upper and lower CMOS tube;
The ISO corresponding to each pixel is controlled by signal amplifier.
7. a control device, described control device comprises:
Collecting unit, for gathering intensity signal;
Zoning unit, for carrying out subregion according to described intensity signal to preview image of taking pictures;
Determining unit, for utilize predetermined policy determine described in take pictures the exposure parameter of preview image in each region;
Control unit, carries out spectrum assignment respectively for each region of exposure parameter to described preview image of taking pictures based on each region, and obtains image.
8. device according to claim 7, is characterized in that, described zoning unit, also for:
The intensity signal meeting same preset range is divided into a light intensity region;
Described preview image of taking pictures is divided into N number of region by corresponding described light intensity region; Wherein, N be more than or equal to 1 positive integer.
9. device according to claim 8, is characterized in that, described determining unit, also for:
For described N number of region configures different exposure parameters respectively;
Wherein, described exposure parameter at least comprises:
Aperture time, ISO, aperture.
10. device according to claim 7, is characterized in that, described control unit, also for:
At synchronization, exposure is started to the image pixel in each region, is not terminating in the same time, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, terminating at synchronization, and corresponding aperture time is met to the exposure time in each region; Or
To the image pixel in each region not starting exposure in the same time, do not terminating in the same time, but the intermediate time of the exposure time in each region being synchronization, and corresponding aperture time is met to the exposure time in each region.
11. devices according to claim 7, is characterized in that, described control unit comprises:
First arranges subelement, arranges upper and lower cmos sensor and signal amplifier for being respectively each region;
First controls subelement, for the shutter release time by controlling each region the switching time of upper and lower CMOS tube;
Second controls subelement, for being controlled the ISO in each region by signal amplifier.
12. devices according to claim 7, is characterized in that, described control unit comprises:
Second arranges subelement, for all arranging independently cmos sensor up and down for each pixel in each region;
3rd controls subelement, for the shutter release time by controlling the switching time of upper and lower CMOS tube corresponding to each pixel;
4th controls subelement, for being controlled the ISO corresponding to each pixel by signal amplifier.
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