CN107438146A - Control the method, apparatus and electronic equipment that three-dimensional noise reduction is opened - Google Patents
Control the method, apparatus and electronic equipment that three-dimensional noise reduction is opened Download PDFInfo
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- CN107438146A CN107438146A CN201610349328.3A CN201610349328A CN107438146A CN 107438146 A CN107438146 A CN 107438146A CN 201610349328 A CN201610349328 A CN 201610349328A CN 107438146 A CN107438146 A CN 107438146A
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- dimensional noise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/144—Movement detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
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- Studio Devices (AREA)
Abstract
The present invention provides a kind of method, apparatus for controlling three-dimensional noise reduction to open and electronic equipment, is related to image processing techniques, solves the problems, such as that chip power-consumption caused by the always on three-dimensional noise reduction function of image processor is larger in the prior art and easily ghost phenomenon occurs.Methods described includes：Obtain the image that camera is collected in adjacent moment, obtain the exercise data of the adjacent moment detected by motion sensor, the exercise data of adjacent moment according to detected by the motion sensor, calculate the movable information for the image that the camera is collected at current time with respect to last moment, the movable information for the image that the camera is collected at current time with respect to last moment controls being turned on and off for three-dimensional noise reduction function compared with predetermined threshold value, according to comparative result.The present invention can adaptively determine to be turned on or off three-dimensional noise reduction function according to motion state, so as to save chip area, reduce chip power-consumption, reduce the generation of ghost phenomenon.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind of method, apparatus for controlling three-dimensional noise reduction to open and
Electronic equipment.
Background technology
When continuous take pictures, the value of same pixel can change over time, and this is temporal noise.For temporal noise, when
Human eye is insensitive to temporal noise when image sequence motion is big, and when image freeze or smaller motion ratio, human eye is made an uproar to the time
Sound is very sensitive, especially low-light environment.Three-dimensional noise reduction is exactly to eliminate temporal noise to the image procossing of consecutive frame, now more next
Three-dimensional noise reduction function is integrated with more image-signal processors (Image Signal Processor).
When adjacent image, which exists, to move, in order to occur without ghost phenomenon, there is two kinds of processing methods, i.e., estimation or
Motion detection.Estimation needs to find corresponding pixel points of the current pixel point in previous frame image, and motion detection only passes through
The difference of pixel value between image, come judge current pixel point be motion or it is static.
At present, it is necessary to which always on three-dimensional noise reduction function, uses estimation or motion in image-signal processor
Detect to carry out three-dimensional noise reduction.
During the present invention is realized, inventor has found following technical problem in the prior art at least be present：
Image processor needs always on three-dimensional noise reduction function, and bigger situation is moved in order to handle adjacent image,
The estimation function of complexity is needed, it is computationally intensive, when implemented in hardware, it is necessary to take larger chip area, beat always
Meeting causes power consumption larger.When adjacent image motion is bigger, merges and easily produce ghost phenomenon.
The content of the invention
The method, apparatus and electronic equipment that control three-dimensional noise reduction provided by the invention is opened, can be according to motion state certainly
Adaptively determine to be turned on or off three-dimensional noise reduction function, so as to save chip area, reduce chip power-consumption, reduce ghost phenomenon
Appearance.
In a first aspect, the present invention provides a kind of method for controlling three-dimensional noise reduction to open, including：
Obtain the image that camera is collected in adjacent moment；
Obtain the exercise data of the adjacent moment detected by motion sensor；
The exercise data of adjacent moment according to detected by the motion sensor, the camera is calculated when current
Carve the movable information of the image that last moment is collected relatively；
The movable information and predetermined threshold value for the image that the camera is collected at current time with respect to last moment
It is compared, being turned on and off for three-dimensional noise reduction function is controlled according to comparative result.
Alternatively, the movable information of the image that the camera is collected at current time with respect to last moment
Compared with predetermined threshold value, it is turned on and off including according to comparative result control three-dimensional noise reduction function：When the camera
When the movable information for the image that current time is collected with respect to last moment is less than the predetermined threshold value, it is believed that image freeze
Or motion is smaller, three-dimensional noise reduction function is opened in control, and the image collected to the camera carries out three-dimensional noise reduction processing；
Otherwise three-dimensional noise reduction function is closed.
Alternatively, the motion sensor is gyroscope；It is described to be detected according to the motion sensor in adjacent moment
The exercise data arrived, calculate the movable information bag for the image that the camera is collected at current time with respect to last moment
Include：The angular speed integration for the cam movement that the gyroscope is collected, obtains the angle of image motion.
Alternatively, the motion sensor is accelerometer；It is described to be examined according to the motion sensor in adjacent moment
The exercise data measured, calculate the movable information bag for the image that the camera is collected at current time with respect to last moment
Include：The integrated acceleration for the cam movement that the accelerometer is collected, the speed of image motion is obtained, is integrated again
To the displacement of figure motion.
Second aspect, the present invention provide a kind of device for controlling three-dimensional noise reduction to open, including：
First acquisition unit, the image collected for obtaining camera in adjacent moment；
Second acquisition unit, for obtaining the exercise data of the adjacent moment detected by motion sensor；
Computing unit, for the exercise data of the adjacent moment according to detected by the motion sensor, described in calculating
Movable information of the camera between the image that current time is collected with respect to last moment；
Control unit, the motion of the image for the camera to be collected at current time with respect to last moment are believed
Breath controls being turned on and off for three-dimensional noise reduction function compared with predetermined threshold value, according to comparative result.
Alternatively, described control unit, for what is collected when the camera at current time with respect to last moment
When the movable information of image is less than the predetermined threshold value, three-dimensional noise reduction function is opened in control, and the camera is collected
Image carries out three-dimensional noise reduction processing；Otherwise three-dimensional noise reduction function is closed.
Alternatively, the motion sensor is gyroscope；The computing unit is used to take the photograph what the gyroscope collected
As cephalomotor angular speed integration, the angle of image motion is obtained.
Alternatively, the motion sensor is accelerometer；The computing unit is used to collect the accelerometer
Cam movement integrated acceleration, obtain the speed of image motion, again integration obtain figure motion displacement.
The third aspect, the present invention provide a kind of electronic equipment, including camera, motion sensor, and the electronic equipment is also
The device opened including above-mentioned control three-dimensional noise reduction.
The method, apparatus and electronic equipment that control three-dimensional noise reduction provided in an embodiment of the present invention is opened, obtain camera and exist
The image that adjacent moment is collected, the exercise data of the adjacent moment detected by motion sensor is obtained, according to the fortune
The exercise data of adjacent moment detected by dynamic sensor, calculate the camera and adopted at current time with respect to last moment
The movable information of the image collected, the motion for the image that the camera is collected at current time with respect to last moment are believed
Breath controls being turned on and off for three-dimensional noise reduction function compared with predetermined threshold value, according to comparative result.Compared with prior art,
The present invention can adaptively determine to be turned on or off three-dimensional noise reduction function, only the image sequence when shooting according to motion state
Arrange static or motion ratio it is less in the case of just open three-dimensional noise reduction function so as to save chip area, reduce chip
Power consumption, reduce the generation of ghost phenomenon.
Brief description of the drawings
Fig. 1 is the flow chart for the method that one embodiment of the invention controls three-dimensional noise reduction unlatching；
Fig. 2 is the structural representation for the device that one embodiment of the invention controls three-dimensional noise reduction unlatching.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
Only it is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The present invention provides a kind of method for controlling three-dimensional noise reduction to open, as shown in figure 1, methods described includes：
S11, obtain the image that camera is collected in adjacent moment；
The exercise data of adjacent moment detected by S12, acquisition motion sensor；
S13, adjacent moment according to detected by the motion sensor exercise data, calculate the camera and working as
The movable information for the image that the preceding moment is collected with respect to last moment；
S14, the movable information for the image for being collected the camera with respect to last moment at current time are with presetting
Threshold value is compared, and being turned on and off for three-dimensional noise reduction function is controlled according to comparative result.
It is provided in an embodiment of the present invention control three-dimensional noise reduction open method, obtain camera current time relatively on one
The image that moment is collected, the exercise data of the adjacent moment detected by motion sensor is obtained, passed according to the motion
The exercise data of adjacent moment detected by sensor, calculate the camera and collected at current time with respect to last moment
Image movable information, the movable information for the image that the camera is collected with respect to last moment at current time with
Predetermined threshold value is compared, and being turned on and off for three-dimensional noise reduction function is controlled according to comparative result.Compared with prior art, this hair
It is bright adaptively to be determined to be turned on or off three-dimensional noise reduction function according to motion state, only when the image sequence of shooting is quiet
Only or motion ratio it is less in the case of just open three-dimensional noise reduction function so as to save chip area, reduce the work(of chip
Consumption, reduce the generation of ghost phenomenon.
Specifically, the movable information of the image that the camera is collected at current time with respect to last moment
Compared with predetermined threshold value, it is turned on and off including according to comparative result control three-dimensional noise reduction function：When the camera
When the movable information for the image that current time is collected with respect to last moment is less than the predetermined threshold value, it is believed that image freeze
Or motion is smaller, three-dimensional noise reduction function is opened in control, and the image collected to the camera carries out three-dimensional noise reduction processing；
Otherwise three-dimensional noise reduction function is closed.
Specifically, the motion sensor can be gyroscope, accelerometer, but not limited to this.
Specifically, when the motion sensor is gyroscope, it is described according to the motion sensor in adjacent moment institute
The exercise data detected, calculate the movable information for the image that the camera is collected at current time with respect to last moment
Including：The angular speed integration for the cam movement that the gyroscope is collected, obtains the angle of image motion.
Specifically, when the motion sensor is accelerometer, it is described according to the motion sensor in adjacent moment
Detected exercise data, calculate the motion letter for the image that the camera is collected at current time with respect to last moment
Breath includes：The integrated acceleration for the cam movement that the accelerometer is collected, the speed of image motion is obtained, is accumulated again
Get the displacement of figure motion.
Accordingly, when the motion sensor is gyroscope, the predetermined threshold value is angle value；When the motion-sensing
When device is accelerometer, the predetermined threshold value is shift value.
It should be noted that can there are multiple motion sensors, multiple motion-sensings simultaneously on an electronic equipment
Device while the exercise data for detecting adjacent moment, the exercise data of the adjacent moment according to detected by multiple motion sensors,
Calculate the movable information for the image that camera is collected at current time with respect to last moment.
Such as：Gyroscope and accelerometer be present simultaneously on one electronic equipment, gyroscope and accelerometer detect simultaneously
The exercise data of adjacent moment, the exercise data of adjacent moment of the electronic equipment according to detected by gyroscope and accelerometer,
Calculate the movable information for the image that camera is collected at current time with respect to last moment.
The embodiment of the present invention also provides a kind of device for controlling three-dimensional noise reduction to open, as shown in Fig. 2 described device includes：
First acquisition unit 11, the image collected for obtaining camera in adjacent moment；
Second acquisition unit 12, for obtaining the exercise data of the adjacent moment detected by motion sensor；
Computing unit 13, for the exercise data of the adjacent moment according to detected by the motion sensor, calculate institute
State movable information of the camera between the image that current time is collected with respect to last moment；
Control unit 14, for the motion for the image for being collected the camera with respect to last moment at current time
Information controls being turned on and off for three-dimensional noise reduction function compared with predetermined threshold value, according to comparative result.
The device that control three-dimensional noise reduction provided in an embodiment of the present invention is opened, obtains camera and is collected in adjacent moment
Image, obtain motion sensor detected by adjacent moment exercise data, according to detected by the motion sensor
Adjacent moment exercise data, calculate the motion for the image that the camera is collected with respect to last moment at current time
Information, movable information and the predetermined threshold value of the image that the camera is collected at current time with respect to last moment are carried out
Compare, being turned on and off for three-dimensional noise reduction function is controlled according to comparative result.Compared with prior art, the present invention can be according to fortune
Determine to be turned on or off three-dimensional noise reduction function, only when the image sequence of shooting is static or motion ratio dynamic state self-adaption
Three-dimensional noise reduction function is just opened in the case of less so as to save chip area, reduces the power consumption of chip, ghost is reduced and shows
The generation of elephant.
Specifically, described control unit 14, for being collected when the camera at current time with respect to last moment
The movable information of image when being less than the predetermined threshold value, three-dimensional noise reduction function is opened in control, and the camera is collected
Image carry out three-dimensional noise reduction processing；Otherwise three-dimensional noise reduction function is closed.
Specifically, the motion sensor can be gyroscope, accelerometer, but not limited to this.
Specifically, when the motion sensor is gyroscope, the computing unit 13, for the gyroscope to be gathered
The angular speed integration of the cam movement arrived, obtains the angle of image motion.
When the motion sensor is accelerometer, the computing unit 13, for the accelerometer to be collected
Cam movement integrated acceleration, obtain the speed of image motion, again integration obtain figure motion displacement.
Further, when the motion sensor is gyroscope, the predetermined threshold value is angle value；When the motion passes
When sensor is accelerometer, the predetermined threshold value is shift value.
The embodiment of the present invention also provides a kind of electronic equipment, and the electronic equipment includes camera, motion sensor, described
Electronic equipment also includes the device that above-mentioned control three-dimensional noise reduction is opened.
Specifically, the electronic equipment is mobile phone, tablet personal computer or camera, but not limited to this.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (9)
- A kind of 1. method for controlling three-dimensional noise reduction to open, it is characterised in that including：Obtain the image that camera is collected in adjacent moment；Obtain the exercise data of the adjacent moment detected by motion sensor；The exercise data of adjacent moment according to detected by the motion sensor, the camera is calculated in current time phase The movable information of the image collected to last moment；The movable information for the image that the camera is collected at current time with respect to last moment is carried out with predetermined threshold value Compare, being turned on and off for three-dimensional noise reduction function is controlled according to comparative result.
- 2. according to the method for claim 1, it is characterised in that it is described by the camera current time relatively on for the moment The movable information of collected image is carved compared with predetermined threshold value, opening for three-dimensional noise reduction function is controlled according to comparative result Opening or closing includes：When the movable information for the image that the camera is collected at current time with respect to last moment is less than institute When stating predetermined threshold value, three-dimensional noise reduction function is opened in control, and the image collected to the camera carries out three-dimensional noise reduction processing； Otherwise three-dimensional noise reduction function is closed.
- 3. according to the method for claim 1, it is characterised in that the motion sensor is gyroscope；The exercise data according to detected by the motion sensor in adjacent moment, the camera is calculated when current Carving the movable information of the image that last moment is collected relatively includes：The angle for the cam movement that the gyroscope is collected Rate integrating, obtain the angle of image motion.
- 4. according to the method for claim 1, it is characterised in that the motion sensor is accelerometer；The exercise data according to detected by the motion sensor in adjacent moment, the camera is calculated when current Carving the movable information of the image that last moment is collected relatively includes：The cam movement that the accelerometer is collected Integrated acceleration, the speed of image motion is obtained, integration obtains the displacement of figure motion again.
- A kind of 5. device for controlling three-dimensional noise reduction to open, it is characterised in that including：First acquisition unit, the image collected for obtaining camera in adjacent moment；Second acquisition unit, for obtaining the exercise data of the adjacent moment detected by motion sensor；Computing unit, for the exercise data of the adjacent moment according to detected by the motion sensor, calculate the shooting Movable information of the head between the image that current time is collected with respect to last moment；Control unit, for the movable information of image that is collected the camera with respect to last moment at current time with Predetermined threshold value is compared, and being turned on and off for three-dimensional noise reduction function is controlled according to comparative result.
- 6. device according to claim 5, it is characterised in that described control unit, for when the camera is current When the movable information for the image that moment is collected with respect to last moment is less than the predetermined threshold value, three-dimensional noise reduction work(is opened in control Can, the image collected to the camera carries out three-dimensional noise reduction processing；Otherwise three-dimensional noise reduction function is closed.
- 7. device according to claim 5, it is characterised in that the motion sensor is gyroscope；The computing unit is used for the angular speed integration for the cam movement for collecting the gyroscope, obtains image motion Angle.
- 8. device according to claim 5, it is characterised in that the motion sensor is accelerometer；The computing unit is used for the integrated acceleration for the cam movement for collecting the accelerometer, obtains image motion Speed, again integration obtain figure motion displacement.
- 9. a kind of electronic equipment, it is characterised in that the electronic equipment includes camera, motion sensor and such as claim The device that control three-dimensional noise reduction any one of 5 to 8 is opened.
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| CN201610349328.3A CN107438146A (en) | 2016-05-24 | 2016-05-24 | Control the method, apparatus and electronic equipment that three-dimensional noise reduction is opened |
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| CN201610349328.3A CN107438146A (en) | 2016-05-24 | 2016-05-24 | Control the method, apparatus and electronic equipment that three-dimensional noise reduction is opened |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021168668A1 (en) * | 2020-02-25 | 2021-09-02 | Oppo广东移动通信有限公司 | Image processing method and apparatus, and storage medium |
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| JP2005318251A (en) * | 2004-04-28 | 2005-11-10 | Sharp Corp | Three-dimensional noise reduction circuit and video signal processor |
| CN101123681A (en) * | 2007-09-20 | 2008-02-13 | 宝利微电子系统控股公司 | A digital image noise reduction method and device |
| CN101448077A (en) * | 2008-12-26 | 2009-06-03 | 四川虹微技术有限公司 | Self-adapting video image 3D denoise method |
| CN104349080A (en) * | 2013-08-07 | 2015-02-11 | 联想(北京)有限公司 | Image processing method and electronic equipment |
-
2016
- 2016-05-24 CN CN201610349328.3A patent/CN107438146A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005318251A (en) * | 2004-04-28 | 2005-11-10 | Sharp Corp | Three-dimensional noise reduction circuit and video signal processor |
| CN101123681A (en) * | 2007-09-20 | 2008-02-13 | 宝利微电子系统控股公司 | A digital image noise reduction method and device |
| CN101448077A (en) * | 2008-12-26 | 2009-06-03 | 四川虹微技术有限公司 | Self-adapting video image 3D denoise method |
| CN104349080A (en) * | 2013-08-07 | 2015-02-11 | 联想(北京)有限公司 | Image processing method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021168668A1 (en) * | 2020-02-25 | 2021-09-02 | Oppo广东移动通信有限公司 | Image processing method and apparatus, and storage medium |
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Application publication date: 20171205 |