CN107948502A - A kind of monitor camera image focusing measuring system and its measuring method - Google Patents
A kind of monitor camera image focusing measuring system and its measuring method Download PDFInfo
- Publication number
- CN107948502A CN107948502A CN201711088758.5A CN201711088758A CN107948502A CN 107948502 A CN107948502 A CN 107948502A CN 201711088758 A CN201711088758 A CN 201711088758A CN 107948502 A CN107948502 A CN 107948502A
- Authority
- CN
- China
- Prior art keywords
- image
- module
- video
- monitor camera
- picture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000004364 calculation method Methods 0.000 claims description 15
- 238000013500 data storage Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 4
- 210000000352 storage cell Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000003128 head Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses a kind of monitor camera image focusing measuring system, including monitor camera, video monitoring tester；Comprehensive Control unit in the video monitoring tester includes communication interface, control process module, decoder module, image focus effects processing module.In addition, also disclose the image focusing measuring method based on above-mentioned measuring system.The present invention is digitally implemented the display of monitoring camera lens focal length state or Camera coverage image clearly state, it is quick accurate to judge, overcome and judge drawback caused by image definition by naked eyes at present, greatly reduce and judge difficulty and erroneous judgement error rate, effectively increase construction efficiency；And it is easy to use, effect is good, the fast development of security protection video monitoring technology can be well adapted for.
Description
Technical field
The present invention relates to security monitoring technology, more particularly to a kind of monitor camera image focusing measuring system and its
Measuring method.
Background technology
With the high speed development of Video Supervision Technique, video monitoring is public security, mansion and the security of factory, and road
Monitoring management etc. has played strong effect, and monitoring camera has been widely used in all trades and professions, or even family.Monitoring is taken the photograph
The scope covered as head depends on camera lens size, and image definition depends on lens focus, and adjusting lens focusing can obtain most
Clearly image.
However, naked eyes can only be relied on to judge to scheme when adjusting lens focusing during installation monitor camera at present
Seem the no accurate judgement for reaching most clear, lacking data foundation, so as to cause image to be shown on monitoring display device, giant-screen
It is unintelligible.The mode for adjusting image definition this at present, not only judges that difficulty is big, construction debugging efficiency is low, but also adds
Erroneous judgement judges the problems such as inaccurate, it is impossible to is well adapted for the fast development of security protection video monitoring technology.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of web camera, analog video camera, coaxial
The monitor camera such as high-definition camera, digital camera image focusing measuring system, to obtain simultaneously real-time display image focusing number
According to the accurate judgement of lens focus state and image definition being digitally implemented, so as to reduce debugging difficulty and go out
Error rate, effectively improves construction efficiency.Another object of the present invention is to provide to be based on the focusing measurement of above-mentioned monitor camera image
The measuring method of system.
The purpose of the present invention is achieved by the following technical programs：
A kind of monitor camera image focusing measuring system provided by the invention, including monitor camera, video monitoring are surveyed
Try instrument；Comprehensive Control unit in the video monitoring tester is included with lower module：
Communication interface, communication is established for being connected with each other with the monitor camera；
Control process module, carries out for coordinating each functional unit, and to the audio and video data streams of the monitor camera
Obtain and separate, control information, human-machine interactive information are handled, calling is transmitted with decoder module；
Decoder module, voice data stream and video data stream for going out to the control process module separation and Extraction carry out
Decoding, and voice data, video data are obtained, and output is to carry out audio broadcasting, video image is shown, data store；
Image focus effects processing module, for obtaining, selecting the decoded video image of the decoder module, handles and counts
Calculate the complexity of image；Obtained according to the complexity and export corresponding focus effects value.
The present invention shown by way of data and judge image definition, i.e., by calculate the complexity value of image come
It is corresponding to provide corresponding focusing result.Result of focusing is different, and the value of complexity is different.Identical scenery, focusing is better, complicated
Angle value and focus effects value are higher, realize that the monitoring to monitor camera focusing, the accurate of image definition judge with this.
Further, image focus effects processing module of the present invention includes consisting of part：
Image receiver module, for receiving, selecting figure of the decoded video image of the decoder module as target area
Piece；
Image data processing module, for obtaining the yuv data of selected picture, is converted to gray scale picture；
Complicated dynamic behaviour module, for choosing, determining calculation and calculate the complexity value of the gray scale picture；
Focus effects module, for receiving picture complexity value, and correspondence provides corresponding focus effects value, then exports
And show.
In such scheme, the calculation of complexity of the present invention is Sobel, Laplacian or StdDev.
Another object of the present invention is achieved by the following technical programs：
A kind of monitor camera image focusing measuring method provided by the invention, based on above-mentioned measuring system, including it is following
Step：
(1) enable and be served by
Region application request is enabled, the video monitoring tester is communicated through communication interface and monitoring camera；
(2) the reception processing of audio and video data streams
(2-1) described video monitoring tester is acquired from prison by Comprehensive Control unit by control process module
Control video camera target area audio and video data streams, then audio and video data streams are separated, extract voice data stream and
Video data stream；
(2-2) described decoder module goes out voice data, video data to voice data stream and video data stream decoding, and defeated
Go out to play out, show, data storage；
(3) image focus effects are handled
(3-1) described image focus effects processing module receives, the selection decoded video image of decoder module is as target
The picture in region；
(3-2) obtains the yuv data of target area picture, is converted to gray scale picture；
(3-3) chooses Sobel, Laplacian or StdDev calculation and carries out to the gray scale picture spot sampling
Calculate, be compared to each other result of calculation, returned using Softmax, choose the calculating for being worth maximum (namely effect is most obvious) after returning
Mode calculates the complexity value of the gray scale picture as the calculation for determining to use；
(3-4) provides corresponding focus effects value, then exports and show according to the picture complexity value, correspondence.
The invention has the advantages that：
(1) present invention is digitally implemented monitoring camera lens focal length state or Camera coverage image clearly
The display of state, it is quick accurate to judge, overcomes and judges drawback caused by image definition by naked eyes at present, substantially reduces
Judgement difficulty and erroneous judgement error rate, effectively increase construction efficiency.
(2) present invention has a very strong practicality, easy to use, effect is good, can be well adapted for security protection video
The fast development of monitoring technology.
Brief description of the drawings
Below in conjunction with embodiment and attached drawing, the present invention is described in further detail：
Fig. 1 is the composition schematic diagram of monitor camera of embodiment of the present invention image focusing measuring system；
Fig. 2 is the composition schematic block diagram of video monitoring tester in embodiment illustrated in fig. 1；
Fig. 3 is the structural principle block diagram of embodiment illustrated in fig. 1 measuring system；
Fig. 4 is the flow diagram of its measuring method of embodiment illustrated in fig. 1 measuring system.
In figure：Monitor camera 1, video monitoring tester 2, power supply unit 21, display unit 22, user input unit
23, data storage cell 24, audio playing unit 25, Comprehensive Control unit 26, communication interface 261, control process module 262,
Audio and video data streams acquisition module 262a, audio and video data streams separation module 262b, other control operations module 262c, decodes mould
Block 263, image focus effects processing module 264, image receiver module 264a, image data processing module 264b, complexity meter
Calculate module 264c, focus effects module 264d
Embodiment
Fig. 1~Fig. 4 show the embodiment of monitor camera image focusing measuring system and its measuring method of the present invention, such as
Shown in Fig. 1, Fig. 2, which includes monitor camera 1, video monitoring tester 2.
As shown in Fig. 2, video monitoring tester 2 mainly includes power supply unit 21, display unit 22, user input unit
23rd, data storage cell 24, audio playing unit 25, Comprehensive Control unit 26；Wherein：
Power supply unit 21, for providing working power and battery charging；
Display unit 22, for showing the video image sent by Comprehensive Control unit 26, control data, test result
Deng display human-computer interaction interface；
User input unit 23, is used for realization user and inputs relevant information, and is sent to Comprehensive Control unit 26 to carry out
Corresponding processing work；
Data storage cell 24, for storing the data of the transmission of Comprehensive Control unit 26；
Audio playing unit 25, for playing audio；
Comprehensive Control unit 26, for coordinating each functional unit, and is realized to the audio and video data streams of monitor camera
Processing, decoding, and processing, the processing of image focus effects of control information；As shown in figure 3, mainly have with lower module：
Communication interface 261, communication is established for being connected with each other with monitor camera 1；
Control process module 262, is obtained for coordinating each functional unit, and to the audio and video data streams of monitor camera
Take and separate, other control information such as PTZ holders, human-machine interactive information are handled, tune is transmitted with decoder module 263
With；
Decoder module 263, voice data stream and video data stream for going out to separation and Extraction decode, and obtain sound
Frequency evidence, video data, and audio playing unit 25, display unit 22 are respectively transmitted to, or it is transmitted to data storage cell 24
Stored；
Image focus effects processing module 264, for obtaining, selecting 263 decoded video image of decoder module, processing is simultaneously
Calculate the complexity of image；Obtained according to complexity and export corresponding focus effects value.
Wherein, as shown in figure 3, control process module 262, main to include with lower module：
Audio and video data streams acquisition module 262a, for asking, obtaining the audio and video data streams of monitor camera 1；
Audio and video data streams separation module 262b, for the audio and video number for merging the monitor camera got
It is voice data stream and video data stream according to flow separation, is subsequently sent to decoder module 263 and is decoded；
Other control operations module 262c, for sending association requests, after the response for obtaining monitoring network camera 1, hair
The operational orders such as cradle head control are sent to control the action of monitor camera 1 or monitoring presetting bit is preserved, called.
Image focus effects processing module 264, it is main to include with lower module：
Image receiver module 264a, for receiving, selecting 263 decoded video image of decoder module as target area
Picture；
Image data processing module 264b, for obtaining the yuv data of selected picture, is converted to gray scale picture；
Complicated dynamic behaviour module 264c, by choose, determine Sobel, Laplacian or StdDev calculation and based on
Calculate the complexity value of above-mentioned gray scale picture；
Focus effects module 264d, for receiving picture complexity value, and correspondence provides corresponding focus effects value, then
Export and show.
A kind of monitor camera image focusing measuring method of the present embodiment is as follows based on above-mentioned measuring system, its step：
(1) enable and be served by
Region application request is enabled, video monitoring tester 2 is communicated through communication interface 261 and monitoring camera 1；
(2) the reception processing of audio and video data streams
(2-1) video monitoring tester is acquired from prison by Comprehensive Control unit 26 by control process module 262
Control video camera 1 target area audio and video data streams, then audio and video data streams are separated, extract voice data stream and
Video data stream；
(2-2) decoder module 263 goes out voice data, video data to above-mentioned voice data stream and video data stream decoding,
And be respectively transmitted to audio playing unit 25, display unit 22 is played out, shown, or be transmitted to data storage cell 24 into
Row data store；
(3) image focus effects are handled,
(3-1) is received, selection as shown in figure 4, in image focus effects processing module 264 by image receiver module 264a
Picture of the 263 decoded video image of decoder module as target area；
(3-2) image data processing module 264b obtains the yuv data of target area picture, is converted to gray scale picture；
(3-3) complicated dynamic behaviour module 264c chooses calculation and calculates above-mentioned gray scale picture according to certain strategy
Complexity value；It is specific as follows, to picture spot sampling, choose Sobel, Laplacian or StdDev calculation and counted
Calculate, be compared to each other result of calculation, returned using Softmax, choose the calculating side for being worth maximum (namely effect is most obvious) after returning
Formula calculates the complexity value of above-mentioned gray scale picture as the calculation for determining to use；
(3-4) focus effects module 264d provides corresponding focus effects value according to above-mentioned picture complexity value, correspondence, so
After export and show.
Claims (4)
- The measuring system 1. a kind of monitor camera image is focused, it is characterised in that：Surveyed including monitor camera (1), video monitoring Try instrument (2)；Comprehensive Control unit (26) in the video monitoring tester (2) is included with lower module：Communication interface (261), communication is established for being connected with each other with the monitor camera (1)；Control process module (262), for coordinating each functional unit, and to the audio and video data streams of the monitor camera (1) Obtained and separated, control information, human-machine interactive information are handled, calling is transmitted with decoder module (263)；Decoder module (263), for the voice data stream and video data gone out to control process module (262) separation and Extraction Stream is decoded, and obtains voice data, video data, and output is to carry out audio broadcasting, video image is shown, data are deposited Storage；Image focus effects processing module (264), for obtaining, selecting the decoder module (263) decoded video image, place Manage and calculate the complexity of image；Obtained according to the complexity and export corresponding focus effects value.
- The measuring system 2. monitor camera image according to claim 1 is focused, it is characterised in that：Described image focusing effect Fruit processing module (264) includes consisting of part：Image receiver module (264a), for receiving, selecting the decoder module (263) decoded video image as target area The picture in domain；Image data processing module (264b), for obtaining the yuv data of selected picture, is converted to gray scale picture；Complicated dynamic behaviour module (264c), for choosing, determining calculation and calculate the complexity value of the gray scale picture；Focus effects module (264d), for receiving picture complexity value, and correspondence provides corresponding focus effects value, then defeated Go out and show.
- The measuring system 3. monitor camera image according to claim 2 is focused, it is characterised in that：The meter of the complexity Calculation mode is Sobel, Laplacian or StdDev.
- The measuring method 4. a kind of monitor camera image is focused, it is characterised in that：Based on the measurement system of claim 1 or 2 or 3 System, comprises the following steps：(1) enable and be served byRegion application request is enabled, the video monitoring tester (2) carries out through communication interface (261) and monitoring camera (1) Communication；(2) the reception processing of audio and video data streams(2-1) described video monitoring tester (2) by Comprehensive Control unit (26), is obtained by control process module (262) To the target area audio and video data streams from monitor camera, then audio and video data streams are separated, extract audio Data flow and video data stream；(2-2) described decoder module (263) goes out voice data stream and video data stream decoding voice data, video data, and Export to play out, show, data storage；(3) image focus effects are handled(3-1) described image focus effects processing module (264) receives, the video image of selection decoder module (263) is as mesh Mark the picture in region；(3-2) obtains the yuv data of target area picture, is converted to gray scale picture；(3-3) calculates the gray scale picture spot sampling, selection Sobel, Laplacian or StdDev calculation, Result of calculation is compared to each other, is returned using Softmax, chooses and is worth the calculation of maximum after returning as the calculating for determining to use Mode, and calculate the complexity value of the gray scale picture；(3-4) provides corresponding focus effects value, then exports and show according to the picture complexity value, correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088758.5A CN107948502B (en) | 2017-11-08 | 2017-11-08 | Monitoring camera image focusing measurement system and measurement method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088758.5A CN107948502B (en) | 2017-11-08 | 2017-11-08 | Monitoring camera image focusing measurement system and measurement method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107948502A true CN107948502A (en) | 2018-04-20 |
| CN107948502B CN107948502B (en) | 2024-04-23 |
Family
ID=61933496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711088758.5A Active CN107948502B (en) | 2017-11-08 | 2017-11-08 | Monitoring camera image focusing measurement system and measurement method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107948502B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060188170A1 (en) * | 2004-12-13 | 2006-08-24 | Seiko Epson Corporation | Method of evaluating image information, storage medium, and image-information evaluating apparatus |
| JP2008281887A (en) * | 2007-05-14 | 2008-11-20 | Hokkaido | Focusing detecting device, focusing detecting method and focusing detecting program |
| CN101726829A (en) * | 2009-12-23 | 2010-06-09 | 重庆大学 | Method for automatically focusing zoom lens |
| CN102707545A (en) * | 2012-06-21 | 2012-10-03 | 武汉烽火众智数字技术有限责任公司 | DFF-based auto-focusing method |
| CN102981347A (en) * | 2012-12-25 | 2013-03-20 | 中国科学院长春光学精密机械与物理研究所 | Automatic SUSAN focusing method for video monitoring system |
| US20130147974A1 (en) * | 2011-11-02 | 2013-06-13 | Chi-cheng Ju | Image-based motion sensor and related multi-purpose camera system |
| CN203204233U (en) * | 2012-08-10 | 2013-09-18 | 上海西光实业有限公司 | Automatic detection device applicable to microscope focusing |
| CN104284095A (en) * | 2014-10-28 | 2015-01-14 | 福建福光数码科技有限公司 | Quick and automatic focusing method and system for long-focus visible-light industrial lens |
| US20150022675A1 (en) * | 2008-08-19 | 2015-01-22 | Digimarc Corporation | Image processing architectures and methods |
| CN106341594A (en) * | 2016-08-23 | 2017-01-18 | 上海集光安防科技股份有限公司 | Camera auxiliary focusing method |
| CN205987204U (en) * | 2016-07-25 | 2017-02-22 | 广州网路通电子有限公司 | Digital video monitors tester suitable for 4KH. 265 HD IP camera |
-
2017
- 2017-11-08 CN CN201711088758.5A patent/CN107948502B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060188170A1 (en) * | 2004-12-13 | 2006-08-24 | Seiko Epson Corporation | Method of evaluating image information, storage medium, and image-information evaluating apparatus |
| JP2008281887A (en) * | 2007-05-14 | 2008-11-20 | Hokkaido | Focusing detecting device, focusing detecting method and focusing detecting program |
| US20150022675A1 (en) * | 2008-08-19 | 2015-01-22 | Digimarc Corporation | Image processing architectures and methods |
| CN101726829A (en) * | 2009-12-23 | 2010-06-09 | 重庆大学 | Method for automatically focusing zoom lens |
| US20130147974A1 (en) * | 2011-11-02 | 2013-06-13 | Chi-cheng Ju | Image-based motion sensor and related multi-purpose camera system |
| CN102707545A (en) * | 2012-06-21 | 2012-10-03 | 武汉烽火众智数字技术有限责任公司 | DFF-based auto-focusing method |
| CN203204233U (en) * | 2012-08-10 | 2013-09-18 | 上海西光实业有限公司 | Automatic detection device applicable to microscope focusing |
| CN102981347A (en) * | 2012-12-25 | 2013-03-20 | 中国科学院长春光学精密机械与物理研究所 | Automatic SUSAN focusing method for video monitoring system |
| CN104284095A (en) * | 2014-10-28 | 2015-01-14 | 福建福光数码科技有限公司 | Quick and automatic focusing method and system for long-focus visible-light industrial lens |
| CN205987204U (en) * | 2016-07-25 | 2017-02-22 | 广州网路通电子有限公司 | Digital video monitors tester suitable for 4KH. 265 HD IP camera |
| CN106341594A (en) * | 2016-08-23 | 2017-01-18 | 上海集光安防科技股份有限公司 | Camera auxiliary focusing method |
Non-Patent Citations (4)
| Title |
|---|
| 王子维;戎蒙恬;刘文江;李萍;: "一种基于高通滤波评价函数的自动对焦方法", 信息技术, no. 10, pages 17 - 19 * |
| 田宜彬: "数字成像系统的自动对焦算法研究", 中国优秀硕士毕业论文 * |
| 钱方;孙涛;郭劲;王挺峰;: "无参考的特征点复杂度激光干扰图像评估", 光学精密工程, no. 04 * |
| 陈惠娟;钱亚枫;李勃;阮雅端;陈启美;: "基于HVS和四元数的彩色图像质量评价方法", 南京大学学报(自然科学), no. 02 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107948502B (en) | 2024-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104113777B (en) | A kind of stream decoding method and device | |
| CN106341711B (en) | A kind of multimachine digital video direct playing and playback method and system | |
| CN109862388A (en) | Generation method, device, server and the storage medium of the live video collection of choice specimens | |
| KR101464456B1 (en) | Video data quality assessment method and device | |
| CN101698896B (en) | System and method for steel-making online end-point control through furnace mouth radiation information fusion | |
| CN109862383A (en) | A kind of method and system for realizing video playing monitoring based on frame feature | |
| CN103945240A (en) | Video playing method and device based on video aggregation | |
| CN105872796A (en) | Method and device for switching broadcast television program to on-demand program | |
| CN105049917A (en) | Method and device for recording an audio and video synchronization timestamp | |
| CN106921864A (en) | Video broadcasting method and device | |
| CN104125488B (en) | The player method and device of a kind of program | |
| CN101938672A (en) | Audience rating statistical system and statistical method thereof | |
| CN109361955B (en) | Interest point-based double-speed video playing method and system | |
| CN103428483A (en) | Media data processing method and device | |
| CN104378635A (en) | Video region-of-interest (ROI) encoding method based on microphone array assistance | |
| CN106982391A (en) | A kind of information-pushing method, terminal, server and system | |
| CN109688328A (en) | A kind of method and apparatus of video-splicing fusion and segmentation based on different point video cameras | |
| CN207802157U (en) | A kind of monitor camera image focusing measuring system | |
| CN107948502A (en) | A kind of monitor camera image focusing measuring system and its measuring method | |
| CN108810468B (en) | Video transmission device and method for optimizing display effect | |
| CN117061791B (en) | Cloud video frame self-adaptive collaborative rendering method and device and computer equipment | |
| CN108419127B (en) | Method for preventing myopia of children | |
| WO2018205991A1 (en) | Method, apparatus and system for video condensation | |
| CN202471601U (en) | Online detecting system of chalky rice in rice | |
| CN105448290B (en) | A kind of audio feature extraction methods becoming frame per second |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |