CN103065290B - In photo, carry out the apparatus and method of flesh correction - Google Patents
In photo, carry out the apparatus and method of flesh correction Download PDFInfo
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- CN103065290B CN103065290B CN201310025486.XA CN201310025486A CN103065290B CN 103065290 B CN103065290 B CN 103065290B CN 201310025486 A CN201310025486 A CN 201310025486A CN 103065290 B CN103065290 B CN 103065290B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003086 colorant Substances 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010205 computational analysis Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 210000000746 body region Anatomy 0.000 description 1
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- 230000001915 proofreading effect Effects 0.000 description 1
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Abstract
The invention discloses a kind of in photo the apparatus and method of correct skin tones, this device comprises: module is set, for the interval and acquiescence colour of skin of the photo personage colour of skin colourity of shooting is set; Photo module, for taking pictures, and storage picture buffer memory; Identification module, identifies for the skin area of comparison film; Processing module, for controlling above modules for controlling above modules, and by through the color space convert of the view data after identification module identification to YCbCr space, colourity Cb, Cr are carried out to flesh correction processing. The apparatus and method of implementing a kind of automatic calibration colour of skin of the present invention, the different colour of skin in automatic calibration personage photo, meanwhile, also facilitates user to proofread and correct personage's colour of skin, has improved the practicality of camera or mobile phone, has strengthened user's experience.
Description
Technical field
The present invention relates to field of mobile terminals, relate in particular in a kind of photo of taking at mobile terminal and carry out skinThe apparatus and method that look is proofreaied and correct.
Background technology
In the prior art, some softwares of taking pictures can provide different exposal models, for example skin-whitening mouldFormula, the soft pattern of skin color etc.; Meanwhile, also there are some beautiful figure softwares, can be to the skin of personage's photoLandscaping treatment is carried out in region. But generally only there is single skin beautifying functions, example at this class software of taking picturesAs by the skin brightening of personage in photo, or skin color is adjusted into wheat. When user is to differenceThe personage of the colour of skin takes pictures, and needs to carry out personage's flesh correction simultaneously, easily causes flesh correction effectFruit difference, cannot unify to carry out flesh correction. For example women user at home likes the colour of skin of oneself to seemMore pale, and more American-European there is the user of white skin, comparatively like the skin of wheat. Like this,Camera or mobile phone with a correct skin tones effect may be difficult to meet different regions consumer demand simultaneously.
Summary of the invention
In prior art, mobile phone or the magazine software of taking pictures cannot be according to the different colours of skin, select suitableBy different flesh correction effects, also cannot carry out the colour of skin to the personage of the different colours of skin in same photo simultaneouslyThe defect of proofreading and correct, the present invention proposes a kind of apparatus and method of the automatic calibration colour of skin.
The present invention solves the technical scheme that prior art problem adopts, and constructs a kind of automatic calibration colour of skinDevice, comprises with lower module:
Module is set, for photo personage colour of skin colourity interval and the acquiescence colour of skin of shooting are set;
Photo module, for taking pictures, and storage picture buffer memory;
Identification module, identifies for the skin area of comparison film;
Processing module, for controlling above modules, and by the view data after identification module identificationColor space convert to YCbCr space, colourity Cb, Cr are carried out to flesh correction processing, make on photoThe colour of skin showing is in the described colour of skin colourity interval that module setting is set.
Module is set and comprises colour of skin colourity setting unit and acquiescence colour of skin setting unit, wherein, colour of skin colouritySetting unit, for different colour of skin colourity intervals is set, is distinguished the different colours of skin according to colour of skin colourity interval,Acquiescence colour of skin setting unit is used for arranging the acquiescence colour of skin, according to the acquiescence colour of skin of selecting, determines personage in photoThe colour of skin.
Photo module comprises camera module, cache module and transport module, and wherein camera module is used forTake pictures, cache module is for being caching image data by the photo storage of shooting, and transport module is used for willDescribed caching image data is transferred to processing module.
Identification module comprises detecting unit, judging unit and selected cell, and wherein, detecting unit is for inspectionSurvey the skin area of personage in photo, judging unit for calculate the colour of skin that judges described skin area inColour of skin colourity, selected cell is for selecting suitable colour of skin colourity from judged result.
Processing module comprises control processor and image processor, and wherein, control processor is used for each mouldPiece and unit are coordinated to control, and image processor is for caching image data described in analyzing and processing, and it is right to realizeThe function of flesh correction.
A method for the automatic calibration colour of skin, comprises the following steps:
A. use arranges module colour of skin colourity interval and the acquiescence colour of skin is set;
B. use photo module to take pictures;
C. by identification module, the colour of skin of personage in described photo is identified to judgement;
D. processing module is carried out analyzing and processing to the described colour of skin, by the view data after identification module identificationColor space convert to YCbCr space, colourity Cb, Cr are carried out to flesh correction processing, make on photoThe colour of skin showing is in the described colour of skin colourity interval that module setting is set.
Colour of skin colourity interval is set, determines the colour of skin colourity interval at place according to the colour of skin of personage in photo; IfPut the acquiescence colour of skin, select to give tacit consent to the colour of skin according to user, determine the colour of skin of personage in photo.
Use described camera module to take described personage's photo, by described cache module, described personage is shoneSheet is stored as caching image data, uses described transport module that described caching image data is transferred to described placeReason module.
In described photo, detect personage's skin area, judge the colour of skin of described skin area by calculatingThe colour of skin colourity interval at place, or select the acquiescence skin of the skin area of personage in described photo according to userLook.
By the control processor in processing module, modules is coordinated to control, by described processing mouldImage processor in piece by the color space convert of caching image data to YCbCr space, to colourity Cb,Cr carries out flesh correction processing, realizes the function of flesh correction.
The apparatus and method of implementing a kind of automatic calibration colour of skin of the present invention are different in automatic calibration personage photoThe colour of skin, meanwhile, also facilitates user to proofread and correct personage's colour of skin, has improved the practicality of camera or mobile phone,Strengthen user's experience.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structured flowchart of the present invention device embodiment of correct skin tones in photo;
It shown in Fig. 2, is the structure chart that module 10 is set in the device of correct skin tones in photo shown in Fig. 1;
It shown in Fig. 3, is the structure chart of photo module 20 in the device of correct skin tones in photo shown in Fig. 1;
It shown in Fig. 4, is the structure chart of identification module 30 in the device of correct skin tones in photo shown in Fig. 1;
It shown in Fig. 5, is the structure chart of processing module 40 in the device of correct skin tones in photo shown in Fig. 1;
Fig. 6 is the embodiment of the method flow chart of the present invention's correct skin tones in photo.
Detailed description of the invention
Should be understood that, for those of ordinary skills, can be improved according to the above descriptionOr conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
The device example structure block diagram of AUTO FLESH of the present invention as shown in Figure 1.
A device for the automatic calibration colour of skin, comprises with lower module:
Module 10 is set, for photo personage colour of skin colourity interval and the acquiescence colour of skin of shooting are set;
Photo module 20, for taking pictures, and storage picture buffer memory;
Identification module 30, identifies for the skin area of comparison film;
Processing module 40, for controlling above modules, and by the image after identification module identificationThe color space convert of data, to YCbCr space, carries out flesh correction processing to colourity Cb, Cr, wherein,YCbCr is in the consumer video products such as DVD, video camera, DTV, conventional color-code sideCase.
It shown in Fig. 2, is the structure chart that module 10 is set in the device of correct skin tones in photo shown in Fig. 1.Wherein, module 10 is set and comprises colour of skin colourity setting unit 21 and acquiescence colour of skin setting unit 22.
Wherein, colour of skin colourity setting unit 21 is for different colour of skin colourity intervals is set, according to colour of skin lookThe different colour of skin of the interval differentiation of degree. For example, be divided into successively from shallow to deep four colour of skin colourity intervals according to the colour of skin:Black colourity interval, brown colourity interval, yellow chrominance interval and white colourity interval. Meanwhile, userAlso can for example, in a kind of colour of skin (the yellow colour of skin) different colourity intervals be set, by the yellow colour of skin by shallowTo being divided into deeply successively a colourity interval arbitrarily.
Acquiescence colour of skin setting unit 22, for the acquiescence colour of skin is set, according to the acquiescence colour of skin of selecting, is determined and is shonePersonage's the colour of skin in sheet. For example, before user takes pictures, selected the personage's that is about to take pictures by userThe colour of skin. This unit shows to be selected window is set, and carries out as required the self-defined selection colour of skin, for example by userSelect the black colour of skin, this unit also can continue to show that selection arranges window simultaneously, and prompting user continues to selectSegmentation kind in the black colour of skin.
It shown in Fig. 3, is the structure chart of photo module 20 in the device of correct skin tones in photo shown in Fig. 1.Wherein, photo module comprises camera module 21, cache module 22 and transport module 23.
In camera module 21, this module is used for taking pictures, and is connected with cache module 22; At buffer memoryIn module 22, this module is caching image data for the photo storage that camera module 21 is taken, shouldCache module is connected with transport module 23; In transport module 23, this module is used for cache module 22In caching image data be transferred to processing module 40.
Being appreciated that this taking module 20 can be the built-in photo module of this device, can be also externalTaking module.
It shown in Fig. 4, is the structure chart of identification module 30 in the device of correct skin tones in photo shown in Fig. 1.This other module 30 comprises detecting unit 31, judging unit 32 and selected cell 33.
Wherein, detecting unit 31 is for detection of the skin area of personage in photo, by photo module 20The photo of taking detects, and analyzes personage's skin area in this photo. For example, photo moduleThe 20 couples of people and thing have been taken a photo, and now, detecting unit 30 detects analyzes these photos, establishes by interiorDetect rule, analyze personage's skin area, for example, can combine with color detection by SHAPE DETECTIONMode, first go out current captured human body according to SHAPE DETECTION, then go out this according to color detectionSkin area in human body. In other embodiments, also can directly enter skin area by the colour of skinRow detects identification.
Judging unit 32 is for calculating the residing colour of skin colourity of the colour of skin interval that judges described skin area. RootAccording to the colour of skin colourity interval arranging is set in module 10, and the skin area that detects of detecting unit 31,Computational analysis goes out the corresponding colour of skin colourity interval of the colour of skin of this skin area. For example, according to the colour of skin by shallow toBe divided into deeply successively four colour of skin colourity intervals: black colourity interval, brown colourity interval, yellow chrominance intervalAnd white colourity interval, the colour of skin of the skin area detecting when detecting unit 31 is in brown colourityInterval, this judging unit 32 is judged to be the colour of skin of this skin area in brown colourity interval.
Selected cell 33 is for select suitable colour of skin colourity from judged result, as above described in example, if sentenceDisconnected unit 32 is judged to be the colour of skin of this this skin area in brown colourity interval, and this skin areaThe colour of skin actual be black, these selected cell 33 display windows, prompting user select to confirm correct skinChroma color interval. Because colour of skin computational analysis does not possess accuracy, now, can be by user to judging unitThe result of 32 judgements is selected to confirm. Another kind of situation is, when arranging in acquiescence colour of skin setting unit 22The acquiescence colour of skin, according to the acquiescence colour of skin of selecting, determine the colour of skin of personage in photo, multiple when having in photoPersonage, and personage's colour of skin is when different, and this selected cell 33 can point out user to select for the different colours of skinCorresponding colour of skin colourity interval.
It shown in Fig. 5, is the structure chart of processing module 40 in the device of correct skin tones in photo shown in Fig. 1.This processing module comprises control processor 41 and image processor 42.
Control processor 41 is controlled for modules and unit are coordinated, and sends corresponding controlInstruction processed, is appreciated that this control processor can be the CPU of this device.
Image processor 42, for caching image data described in analyzing and processing, is realized the function to flesh correction.Identify the colour of skin at identification module 30, and confirm behind corresponding colour of skin colourity interval, for this colour of skin colourityInterval, image processor 42 is processed according to predetermined processing rule this colour of skin, and processing rule canTo YCbCr space, to colourity by the color space convert of the view data after identification module identificationCb, Cr carry out flesh correction processing. For example, be to belong to black when identification module 30 identifies the colour of skin, butBehind the colour of skin colourity interval of being confirmed to belong to brown by user, image processor 42 is by the predetermined brown colour of skinProcessing rule, utilizes view data YCbCr space switch technology, and this colour of skin is proofreaied and correct to processing, makesIn the colour of skin colourity interval that the colour of skin showing on photo is confirmed in user, realize flesh correction function.
Be appreciated that this device goes in camera or mobile phone.
If Fig. 6 is the embodiment of the method flow chart of AUTO FLESH of the present invention, comprise the following steps:
S1. use arranges module colour of skin colourity interval and the acquiescence colour of skin is set;
S2. use photo module to take pictures;
S3. by identification module, the colour of skin of personage in described photo is identified to judgement;
S4. processing module is carried out analyzing and processing to the described colour of skin.
In step S1, colour of skin colourity interval is set, determine the skin at place according to the colour of skin of personage in photoChroma color interval; The acquiescence colour of skin is set, selects to give tacit consent to the colour of skin according to user, determine the colour of skin of personage in photo.A kind of mode is different colour of skin colourity intervals to be set, according to the different colour of skin of the interval differentiation of colour of skin colourity.For example, be divided into successively from shallow to deep four colour of skin colourity intervals according to the colour of skin: black colourity interval, brown lookDegree is interval, yellow chrominance is interval and white colourity interval. Meanwhile, user also can be in a kind of colour of skin (exampleAs the yellow colour of skin) in different colourity intervals is set, the yellow colour of skin is divided into an arbitrarily look from shallow to deep successivelyDegree is interval. Another kind of mode is, the acquiescence colour of skin is set, and according to the acquiescence colour of skin of selecting, determines people in photoThe colour of skin of thing. For example, before user takes pictures, selected the personage's who is about to take pictures the colour of skin by user.The method shows to be selected window is set, and carries out as required the self-defined selection colour of skin by user, for example, select blackThe look colour of skin, the method also can continue to show that selection arranges window simultaneously, prompting user continues to select black skinSegmentation kind in look.
In step S2, use above-mentioned camera module 21 to take pictures, and by take photo with imageThe form of data stores in above-mentioned cache module 22, meanwhile, and by above-mentioned transport module 23, by buffer memoryCaching image data in module 22 is transferred to and in processing module 40, carries out image processing.
Be appreciated that the method is used built-in photo module to take pictures, or use external shooting mouldPiece is taken pictures.
In step S3, detect the skin area of personage in photo by above-mentioned detecting unit 31, and pass throughThe photo that photo module 20 is taken detects, and analyzes personage's skin area in this photo. ExampleAs, photo module 20 has been taken a photo to people and thing, and now, detecting unit 30 detects analyzes this photographSheet, detects rule according to interior establishing, and analyzes personage's skin area, for example can be by SHAPE DETECTION and faceLook detects the mode combining, and first goes out human region according to SHAPE DETECTION, then goes out people according to color detectionSkin area in body region. Also can directly detect identification by the colour of skin.
Calculate by judging unit 32 the residing colour of skin colourity of the colour of skin interval that judges described skin area. RootAccording to the colour of skin colourity interval arranging is set in module 10, and the skin area that detects of detecting unit 31,Computational analysis goes out the corresponding colour of skin colourity interval of the colour of skin of this skin area. For example, according to the colour of skin by shallow toBe divided into deeply successively four colour of skin colourity intervals: black colourity interval, brown colourity interval, yellow chrominance intervalAnd white colourity interval, the colour of skin of the skin area detecting when detecting unit 31 is in brown colourityInterval, this judging unit 32 is judged to be the colour of skin of this skin area in brown colourity interval.
From judged result, select suitable colour of skin colourity by selected cell 33, as above described in example, if sentenceDisconnected unit 32 is judged to be the colour of skin of this this skin area in brown colourity interval, and this skin areaThe colour of skin actual be black, these selected cell 33 display windows, prompting user select to confirm correct skinChroma color interval. Because colour of skin computational analysis does not possess accuracy, now, can be by user to judging unitThe result of 32 judgements is selected to confirm. Another kind of mode is, when arranging in acquiescence colour of skin setting unit 22The acquiescence colour of skin, according to the acquiescence colour of skin of selecting, determine the colour of skin of personage in photo, multiple when having in photoPersonage, and personage's colour of skin is when different, and this selected cell 33 can point out user to select for the different colours of skinCorresponding colour of skin colourity interval.
In step S4, control processor 41 is coordinated to control to modules and unit, and sendsCorresponding control instruction. Caching image data described in image processor 42 analyzing and processing, realizes colour of skin schoolPositive function. Identify the colour of skin at identification module 30, and confirm behind corresponding colour of skin colourity interval, forThis colour of skin colourity interval, image processor 42 is processed according to predetermined processing rule this colour of skin, locatesReason rule can be to YCbCr sky by the color space convert of the view data after identification module identificationBetween, colourity Cb, Cr are carried out to flesh correction processing. For example, when identification module 30 identifies the colour of skin beBelong to black, but behind the colour of skin colourity interval of being confirmed to belong to brown by user, image processor 42 is by pre-Fixed brown colour of skin processing rule, utilizes view data YCbCr space switch technology, and brown pixel is enteredRow is processed, and reaches this brown colour of skin is proofreaied and correct to the effect of processing, and makes the colour of skin showing on photo in instituteState in the colour of skin colourity interval that module setting is set, realize flesh correction function.
Be appreciated that the method goes in camera or mobile phone.
Claims (4)
1. a device for correct skin tones in photo, is characterized in that, comprises with lower module:
Module is set, for photo personage colour of skin colourity interval and the acquiescence colour of skin of shooting are set;
Photo module, for taking pictures, and storage picture buffer memory;
Identification module, identifies for the skin area of comparison film;
Processing module, arranges module, photo module and identification module for controlling, and will be through knowingIn photo after other Module recognition, the color space convert of the view data of skin area arrivesYCbCr space, carries out flesh correction processing to colourity Cb, Cr, makes the colour of skin showing on photoIn the described colour of skin colourity interval that module setting is set;
Described identification module comprises detecting unit, and judging unit and selected cell wherein, detect singleUnit is for detection of the skin area of personage in photo, and judging unit is used for calculating and judges described skinThe colour of skin in region in colour of skin colourity interval, selected cell for from judged result select closeSuitable colour of skin colourity interval;
When there being multiple personages in photo, and personage's colour of skin is when different, and selected cell is used for pointing out userSelect corresponding colour of skin colourity interval for the different colours of skin;
Described photo module comprises camera module, cache module and transport module, wherein cameraModule is used for taking pictures, and it is cache image number by the photo storage of shooting that cache module is used forAccording to, transport module is for being transferred to processing module by described caching image data;
Described processing module comprises control processor and image processor, and wherein, control processor is used forModules and unit are coordinated to control, and image processor is for buffer memory described in analyzing and processingView data, arrives the color space convert of the view data of skin area in caching image dataYCbCr space, carries out flesh correction processing to colourity Cb, Cr, realizes the merit to flesh correctionEnergy.
According to claim 1 in photo the device of correct skin tones, it is characterized in that instituteState and module is set comprises colour of skin colourity setting unit and acquiescence colour of skin setting unit, wherein, skinChroma color setting unit is for different colour of skin colourity intervals is set, according to the interval district of colour of skin colourityDivide the different colours of skin, acquiescence colour of skin setting unit is used for arranging the acquiescence colour of skin, described in selectingGive tacit consent to the colour of skin, determine the colour of skin of personage in photo.
3. a method for correct skin tones in photo, is characterized in that, comprises the following steps:
A. use arranges module colour of skin colourity interval and the acquiescence colour of skin is set;
B. use photo module to take pictures;
C. by identification module, the colour of skin of personage in described photo is identified to judgement;
D. processing module is carried out analyzing and processing to the colour of skin of personage in described photo, will be through identification moduleIn photo after identification, the color space convert of the view data of skin area is to YCbCr space,Colourity Cb, Cr are carried out to flesh correction processing, make the colour of skin showing on photo in using instituteState in the colour of skin colourity interval that module setting is set;
In step C, in described photo, detect personage's skin area, judge institute by calculatingState the colour of skin colourity interval at the colour of skin place of skin area, or select described photo according to userIn, the acquiescence colour of skin of described skin area;
When there being multiple personages in photo, and personage's colour of skin is when different, and selected cell is used for pointing out userSelect corresponding colour of skin colourity interval for the different colours of skin;
In step B, described photo module comprises camera module, cache module and transport module,Use described camera module to take personage's photo, by described cache module by described photoBe stored as caching image data, use described in described transport module is transferred to caching image dataProcessing module;
In step D, by the control processor in described processing module to module, photo module are setAnd identification module coordinate control, will delay by the image processor in described processing moduleDeposit the color space convert of the view data of skin area in view data to YCbCr space, rightChrominance C b, Cr carry out flesh correction processing, realize the function of flesh correction.
According to claim 3 in photo the method for correct skin tones, it is characterized in that,In steps A, colour of skin colourity interval is set, according to the colour of skin of personage in photo, this colour of skin is setThe colour of skin colourity interval at place; The acquiescence colour of skin is set, selects to give tacit consent to the colour of skin according to user, arrangePersonage's the colour of skin in photo.
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| CN201310025486.XA CN103065290B (en) | 2013-01-23 | 2013-01-23 | In photo, carry out the apparatus and method of flesh correction |
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| CN201310025486.XA CN103065290B (en) | 2013-01-23 | 2013-01-23 | In photo, carry out the apparatus and method of flesh correction |
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| CN104156915A (en) * | 2014-07-23 | 2014-11-19 | 小米科技有限责任公司 | Skin color adjusting method and device |
| CN105631812B (en) * | 2014-10-29 | 2020-05-29 | 新相微电子(上海)有限公司 | Control method and control device for color enhancement of display image |
| CN105096238A (en) * | 2015-03-27 | 2015-11-25 | 浙江慧谷信息技术有限公司 | Visual lossless CMYK dynamic conversion algorithm |
| CN104992401A (en) * | 2015-06-30 | 2015-10-21 | 上海交通大学 | Visual-nondestructive dynamic CMYK image conversion method and system |
| US10055821B2 (en) * | 2016-01-30 | 2018-08-21 | John W. Glotzbach | Device for and method of enhancing quality of an image |
| CN106096588A (en) * | 2016-07-06 | 2016-11-09 | 北京奇虎科技有限公司 | The processing method of a kind of view data, device and mobile terminal |
| CN111226431B (en) * | 2017-10-11 | 2021-06-01 | 深圳传音通讯有限公司 | Photographing method and photographing system based on intelligent terminal |
| CN107993209B (en) * | 2017-11-30 | 2020-06-12 | Oppo广东移动通信有限公司 | Image processing method, image processing device, computer-readable storage medium and electronic equipment |
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| US7542600B2 (en) * | 2004-10-21 | 2009-06-02 | Microsoft Corporation | Video image quality |
| KR20050050061A (en) * | 2005-04-30 | 2005-05-27 | 조동욱 | Facial features extraction for ocular inspection |
| CN1905687A (en) * | 2006-08-02 | 2007-01-31 | 智多微电子（上海）有限公司 | Apparatus and method capable of correcting human skin pixels in picture |
| CN100571404C (en) * | 2007-01-04 | 2009-12-16 | 四川长虹电器股份有限公司 | Skin color signal correcting method |
| JP2009165036A (en) * | 2008-01-09 | 2009-07-23 | Sharp Corp | Image processor and computer program |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 |