CN105306794A - Image acquisition method, image acquisition device and terminal - Google Patents

Image acquisition method, image acquisition device and terminal Download PDF

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Publication number
CN105306794A
CN105306794A CN201410374986.9A CN201410374986A CN105306794A CN 105306794 A CN105306794 A CN 105306794A CN 201410374986 A CN201410374986 A CN 201410374986A CN 105306794 A CN105306794 A CN 105306794A
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image
exposure
knots modification
preset times
imageing sensor
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CN105306794B (en
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王强
杨祖勇
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Abstract

The invention provides an image acquisition method and an image acquisition device. The image acquisition device comprises a focus motor and an image sensor, and the image acquisition method is used for acquiring images by use of the image acquisition device and comprises the following steps: obtaining a position variable of the focus motor, and obtaining an exposure variable of the image sensor; continuously changing the position of the focus motor at the position variable, and meanwhile, continuously changing the exposure value of the image sensor at the exposure variable for a preset time; and storing the image acquired after each change to obtain a plurality of images in the same number as the preset time. By adopting the image acquisition method and the image acquisition device provided by the invention, a user can check details of exposure transition positions and/or dark positions of the images, and thus the user experience is enhanced.

Description

Image acquiring method, image acquiring device and terminal
Technical field
The present invention relates to technical field of image processing, in particular to a kind of image acquiring method, a kind of image acquiring device and a kind of terminal.
Background technology
At present, when carrying out image taking, generally only considering the focal length problem of image, not considering how the over-exposed position of image and position, dark place to be processed.But, want the details clearly seeing image, expose normal and clear two conditions that are absolutely necessary of focusing, therefore, only consider that the focal length problem of image makes user cannot view the over-exposed position of image and/or the details at position, dark place.
Therefore, how to obtain image and can view the over-exposed position of image and/or the details at position, dark place to make user, become current problem demanding prompt solution.
Summary of the invention
The present invention, just based on above-mentioned technical problem, proposes a kind of new technical scheme, makes user can view the over-exposed position of image and/or the details at position, dark place.
In view of this, an aspect of of the present present invention proposes a kind of image acquiring method, for obtaining image by image acquiring device, described image acquiring device comprises focusing motor and imageing sensor, described image acquiring method comprises: the position knots modification obtaining described focusing motor, and the exposure knots modification obtaining described imageing sensor; Change the position of described focusing motor continuously with described position knots modification, and the continuous exposure value changing described imageing sensor with described exposure knots modification reaches preset times simultaneously; And the image obtained after storing each change, thus obtain the multiple images with described preset times equal number.
In this technical scheme, while the position continuously changing focusing motor is with continuous setup focal length, the exposure value continuously changing imageing sensor reaches preset times, to obtain and multiple images of preset times equal number, make user the image be applicable to can be selected to view the details at over-exposed position and/or position, dark place in multiple focal length and the different image of exposure value according to self-demand like this.
In technique scheme, preferably, also comprise: described multiple Images uniting is treated to final image.
In the prior art, many algorithms is had to realize image processing and tracking unit, such as common difference shadow method, the method can merge image by carrying out point-to-point computing (add, subtract, take advantage of and/or remove) to each image participating in synthesis, and can reach the effect reducing random noise.
In this technical scheme, the multiple focal length got and the different image of exposure value are synthesized, exposure effect can be obtained after synthesis and focal length all reaches optimum image.By this technical scheme, high-quality image can be got, improve Consumer's Experience.
In technique scheme, preferably, when receiving the topography's order checked on described final image, from stored described multiple image, find out the image of the topography corresponding to exposure and focusing the best.
In this technical scheme, user is when checking the image of final synthesis, the image of the effect optimum of this local location can be obtained by the topography chosen on this image, when namely clicking overexposure position/position, dark place/other positions on final image user, position can be clicked by searching to correspond to from the multiple images obtained, brightness is normal, image clearly of focusing shows, so that user checks the details at this position.
In technique scheme, preferably, the described step continuously changing the position of described focusing motor with described position knots modification comprises: continuously change described position knots modification in the same direction the current location when position of described focusing motor is started from described focusing motor and reach described preset times.
In this technical scheme, the position continuously changing focusing motor in the same direction reaches preset times, namely on the direction of advancing or retreat, each by change position, the position knots modification of focusing motor, continuously change preset times, the image that the focal length of number identical with preset times is different can be got, so that user chooses required local location image the most clearly in these images, to check the details of this local location.
In technique scheme, preferably, the step that the described exposure value changing described imageing sensor with described exposure knots modification continuously reaches preset times comprises: make the exposure value of described imageing sensor increase continuously or reduce described exposure knots modification from current exposure value during described imageing sensor startup and reach described preset times.
In this technical scheme, increase continuously or reduce exposure knots modification and reach preset times, the image that the exposure value of number identical with preset times is different can be got, so that user chooses the most normal image of required local location brightness in these images, to check the details of this local location.
Another aspect of the present invention proposes a kind of image acquiring device, for obtaining image, comprising focusing motor and imageing sensor, also comprising: acquiring unit, for obtaining the position knots modification of described focusing motor, and obtain the exposure knots modification of described imageing sensor; Performance element, changes the position of described focusing motor continuously with described position knots modification, and the continuous exposure value changing described imageing sensor with described exposure knots modification reaches preset times simultaneously; Memory cell, for storing the rear image obtained of each change, thus obtains the multiple images with described preset times equal number.
In this technical scheme, while the position continuously changing focusing motor is with continuous setup focal length, the exposure value continuously changing imageing sensor reaches preset times, to obtain and multiple images of preset times equal number, make user the image be applicable to can be selected to view the details at over-exposed position and/or position, dark place in multiple focal length and the different image of exposure value according to self-demand like this.
In technique scheme, preferably, also comprise: synthesis unit, for described multiple Images uniting is treated to final image.
In this technical scheme, the multiple focal length got and the different image of exposure value are synthesized, exposure effect can be obtained after synthesis and focal length all reaches optimum image.By this technical scheme, high-quality image can be got, improve Consumer's Experience.
In technique scheme, preferably, also comprising: search unit, for when receiving the topography's order checked on described final image, from stored described multiple image, finding out the image of the topography corresponding to exposure and focusing the best.
In this technical scheme, user is when checking the image of final synthesis, the image of the effect optimum of this local location can be obtained by the topography chosen on this image, when namely clicking overexposure position/position, dark place/other positions on final image user, position can be clicked by searching to correspond to from the multiple images obtained, brightness is normal, image clearly of focusing shows, so that user checks the details at this position.
In technique scheme, preferably, described performance element comprises: position changes unit, continuously changes described position knots modification in the same direction and reach described preset times current location when starting from described focusing motor for making the position of described focusing motor.
In this technical scheme, the position continuously changing focusing motor in the same direction reaches preset times, namely on the direction of advancing or retreat, each by change position, the position knots modification of focusing motor, continuously change preset times, the image that the focal length of number identical with preset times is different can be got, so that user chooses required local location image the most clearly in these images, to check the details of this local location.
In technique scheme, preferably, described performance element also comprises: exposure value changes unit, increases continuously or reduce described exposure knots modification to reach described preset times current exposure value when starting from described imageing sensor for making the exposure value of described imageing sensor.
In this technical scheme, increase continuously or reduce exposure knots modification and reach preset times, the image that the exposure value of number identical with preset times is different can be got, so that user chooses the most normal image of required local location brightness in these images, to check the details of this local location.
Another aspect of the invention proposes a kind of terminal, includes the image acquiring device described in technique scheme.Therefore, this terminal has whole beneficial effects of the image acquiring device that technique scheme provides, and does not repeat them here.
By above technical scheme, make user can view the over-exposed position of image and/or the details at position, dark place, and synthesis obtain high-quality image, improves Consumer's Experience.
Accompanying drawing explanation
Fig. 1 shows the schematic flow diagram of image acquiring method according to an embodiment of the invention;
Fig. 2 shows the schematic flow diagram of image acquiring method according to an embodiment of the invention;
Fig. 3 A and Fig. 3 B shows the schematic diagram that image acquiring method according to an embodiment of the invention obtains image;
Fig. 4 shows the schematic block diagram of image acquiring device according to an embodiment of the invention;
Fig. 5 shows the schematic block diagram of terminal according to an embodiment of the invention.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of image acquiring method according to an embodiment of the invention.
As shown in Figure 1, image acquiring method according to an embodiment of the invention, comprising:
Step 102, obtains the position knots modification of focusing motor, and obtains the exposure knots modification of imageing sensor.
Step 104, changes the position of focusing motor with position knots modification continuously, and reaches preset times with exposure value expose knots modification change imageing sensor simultaneously continuously.
Step 106, the image obtained after storing each change, thus obtain the multiple images with preset times equal number.
In this technical scheme, while the position continuously changing focusing motor is with continuous setup focal length, the exposure value continuously changing imageing sensor reaches preset times, to obtain and multiple images of preset times equal number, make user the image be applicable to can be selected to view the details at over-exposed position and/or position, dark place in multiple focal length and the different image of exposure value according to self-demand like this.
In technique scheme, preferably, also comprise: step 108, multiple Images uniting is treated to final image.
In this technical scheme, the multiple focal length got and the different image of exposure value are synthesized, exposure effect can be obtained after synthesis and focal length all reaches optimum image.By this technical scheme, high-quality image can be got, improve Consumer's Experience.
In technique scheme, preferably, when receiving the topography's order checked on final image, from stored multiple images, find out the image of the topography corresponding to exposure and focusing the best.
In this technical scheme, user is when checking the image of final synthesis, the image of the effect optimum of this local location can be obtained by the topography chosen on this image, when namely clicking overexposure position/position, dark place/other positions on final image user, position can be clicked by searching to correspond to from the multiple images obtained, brightness is normal, image clearly of focusing shows, so that user checks the details at this position.
In technique scheme, preferably, step 104 comprises: continuously change position knots modification in the same direction the current location when position of focusing motor is started from focusing motor and reach preset times.
In this technical scheme, the position continuously changing focusing motor in the same direction reaches preset times, namely on the direction of advancing or retreat, each by change position, the position knots modification of focusing motor, continuously change preset times, the image that the focal length of number identical with preset times is different can be got, so that user chooses required local location image the most clearly in these images, to check the details of this local location.
In technique scheme, preferably, step 104 also comprises: increase continuously the current exposure value when exposure value of imageing sensor is started from imageing sensor or reduce exposure knots modification reach preset times.
In this technical scheme, increase continuously or reduce exposure knots modification and reach preset times, the image that the exposure value of number identical with preset times is different can be got, so that user chooses the most normal image of required local location brightness in these images, to check the details of this local location.
Fig. 2 shows the schematic flow diagram of image acquiring method according to an embodiment of the invention.
As shown in Figure 2, image acquiring method according to an embodiment of the invention, comprising:
Step 202, presses camera shutter, takes pictures.
Step 204, the position of initialization focusing motor and current exposure value.
Step 206, current exposure value increases the exposure value E of setting, simultaneously mobile focusing motor M step on the basis of the position of present motor.Namely while the exposure value changing imageing sensor, change the position of focusing motor.
Step 208, captures image.Obtain the image after exposure value and focal distance fluctuation.
Step 210, has judged whether T image-capture, when judged result is for being, enters step 212, otherwise, return step 206.T is pre-determined number, and the position changing focusing motor while the exposure value changing imageing sensor reaches pre-determined number, can obtain the image that multiple exposure values are different with focal length.
Step 212, opens Images uniting by T and obtains final image.The multiple focal length got and the different image of exposure value are synthesized, exposure effect can be obtained after synthesis and focal length all reaches optimum image, improve Consumer's Experience.
Step 214, clicks any part (overexposure position/position, dark place/other positions) in image.
Step 216, presents the exposure at clicked position and all correct image of focal length.The brightness at this position is normal, image clearly of focusing, so that user checks the details at this position to make user can be obtained by overexposure position/position, dark place/other positions chosen on final image like this.
Fig. 3 A and Fig. 3 B shows the schematic diagram of the image that image acquiring method according to an embodiment of the invention gets.
As shown in Figure 3A, take six exposures successively from dark to bright, and the image that focal length is different, by specific algorithm (such as difference shadow method), these six images are synthesized, obtain the final image after synthesizing.
In this technical scheme, the multiple focal length got and the different image of exposure value are synthesized, exposure effect can be obtained after synthesis and focal length all reaches optimum image, namely can get high-quality image, improve Consumer's Experience.
As shown in Figure 3 B, when checking the final image after synthesis, click overexposure position, present exposure value and the most normal image of focusing at overexposure position clicked in six images; Click position, dark place, present position, dark place exposure value clicked in six images and the most normal image of focusing.
Fig. 4 shows the schematic block diagram of image acquiring device according to an embodiment of the invention.
As shown in Figure 4, image acquiring device 400 according to an embodiment of the invention, comprising: acquiring unit 402, for obtaining the position knots modification of focusing motor, and obtains the exposure knots modification of imageing sensor; Performance element 404, changes the position of focusing motor with position knots modification continuously, and reaches preset times with exposure value expose knots modification change imageing sensor simultaneously continuously; Memory cell 406, for storing the rear image obtained of each change, thus obtains the multiple images with preset times equal number.
In this technical scheme, while the position continuously changing focusing motor is with continuous setup focal length, the exposure value continuously changing imageing sensor reaches preset times, to obtain and multiple images of preset times equal number, make user the image be applicable to can be selected to view the details at over-exposed position and/or position, dark place in multiple focal length and the different image of exposure value according to self-demand like this.
In technique scheme, preferably, also comprise: synthesis unit 408, for multiple Images uniting is treated to final image.
In this technical scheme, the multiple focal length got and the different image of exposure value are synthesized, exposure effect can be obtained after synthesis and focal length all reaches optimum image.By this technical scheme, high-quality image can be got, improve Consumer's Experience.
In technique scheme, preferably, also comprising: search unit 410, for when receiving the topography's order checked on final image, from stored multiple images, finding out the image of the topography corresponding to exposure and focusing the best.
In this technical scheme, user is when checking the image of final synthesis, the image of the effect optimum of this local location can be obtained by the topography chosen on this image, when namely clicking overexposure position/position, dark place/other positions on final image user, position can be clicked by searching to correspond to from the multiple images obtained, brightness is normal, image clearly of focusing shows, so that user checks the details at this position.
In technique scheme, preferably, performance element 404 comprises: position changes unit 4042, continuously changes position knots modification in the same direction and reach preset times current location when starting from focusing motor for making the position of focusing motor.
In this technical scheme, the position continuously changing focusing motor in the same direction reaches preset times, namely on the direction of advancing or retreat, each by change position, the position knots modification of focusing motor, continuously change preset times, the image that the focal length of number identical with preset times is different can be got, so that user chooses required local location image the most clearly in these images, to check the details of this local location.
In technique scheme, preferably, performance element 404 also comprises: exposure value changes unit 4044, increases continuously or reduce exposure knots modification to reach preset times current exposure value when starting from imageing sensor for making the exposure value of imageing sensor.
In this technical scheme, increase continuously or reduce exposure knots modification and reach preset times, the image that the exposure value of number identical with preset times is different can be got, so that user chooses the most normal image of required local location brightness in these images, to check the details of this local location.
Fig. 5 shows the schematic block diagram of terminal according to an embodiment of the invention.
As shown in Figure 5, terminal 500 according to an embodiment of the invention, comprise: image acquiring device 502 (being equivalent to above-mentioned image acquiring device 400), image acquiring device 502 can while the position continuously changing focusing motor be with continuous setup focal length, the exposure value continuously changing imageing sensor reaches preset times, to obtain the multiple images with preset times equal number, and multiple Images uniting is treated to final image.
By this technical scheme, user can obtain the final image of the best results after multiple Images uniting process in terminal 500, when clicking the desired location on final image as user, select the image of the best results of this position to present to user, so that user checks the details at overexposure position/position, dark place/other positions in multiple images that terminal 500 can obtain at image acquiring device 502.
More than be described with reference to the accompanying drawings technical scheme of the present invention, by technical scheme of the present invention, made user can view the over-exposed position of image and/or the details at position, dark place, and synthesis obtains high-quality image, improves Consumer's Experience.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. an image acquiring method, for obtaining image by image acquiring device, described image acquiring device comprises focusing motor and imageing sensor, it is characterized in that, comprising:
Obtain the position knots modification of described focusing motor, and obtain the exposure knots modification of described imageing sensor;
Change the position of described focusing motor continuously with described position knots modification, and the continuous exposure value changing described imageing sensor with described exposure knots modification reaches preset times simultaneously; And
The image obtained after storing each change, thus obtain the multiple images with described preset times equal number.
2. image acquiring method according to claim 1, is characterized in that, also comprises:
Described multiple Images uniting is treated to final image.
3. image acquiring method according to claim 2, is characterized in that,
When receiving the topography's order checked on described final image, from stored described multiple image, find out the image of the topography corresponding to exposure and focusing the best.
4. image acquiring method according to any one of claim 1 to 3, is characterized in that, the described step continuously changing the position of described focusing motor with described position knots modification comprises:
Continuously change described position knots modification in the same direction current location when the position of described focusing motor is started from described focusing motor and reach described preset times.
5. image acquiring method according to any one of claim 1 to 3, is characterized in that, the step that the described exposure value changing described imageing sensor with described exposure knots modification continuously reaches preset times comprises:
Increase continuously or reduce described exposure knots modification current exposure value when the exposure value of described imageing sensor is started from described imageing sensor and reach described preset times.
6. an image acquiring device, for obtaining image, comprising focusing motor and imageing sensor, it is characterized in that, also comprising:
Acquiring unit, for obtaining the position knots modification of described focusing motor, and obtains the exposure knots modification of described imageing sensor;
Performance element, changes the position of described focusing motor continuously with described position knots modification, and the continuous exposure value changing described imageing sensor with described exposure knots modification reaches preset times simultaneously;
Memory cell, for storing the rear image obtained of each change, thus obtains the multiple images with described preset times equal number.
7. image acquiring device according to claim 6, is characterized in that, also comprises:
Synthesis unit, for being treated to final image by described multiple Images uniting.
8. image acquiring device according to claim 7, is characterized in that, also comprises:
Searching unit, for when receiving the topography's order checked on described final image, from stored described multiple image, finding out the image of the topography corresponding to exposure and focusing the best.
9. the image acquiring device according to any one of claim 6 to 8, is characterized in that, described performance element comprises:
Position changes unit, continuously changes described position knots modification in the same direction and reach described preset times current location when starting from described focusing motor for making the position of described focusing motor;
Exposure value changes unit, increases continuously or reduce described exposure knots modification to reach described preset times current exposure value when starting from described imageing sensor for making the exposure value of described imageing sensor.
10. a terminal, is characterized in that, comprises the image acquiring device according to any one of claim 6 to 9.
CN201410374986.9A 2014-07-31 2014-07-31 Image acquiring method, image acquiring device and terminal Active CN105306794B (en)

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