CN103067659A - Video analysis auxiliary hand-operated focusing method - Google Patents
Video analysis auxiliary hand-operated focusing method Download PDFInfo
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- CN103067659A CN103067659A CN2012105727901A CN201210572790A CN103067659A CN 103067659 A CN103067659 A CN 103067659A CN 2012105727901 A CN2012105727901 A CN 2012105727901A CN 201210572790 A CN201210572790 A CN 201210572790A CN 103067659 A CN103067659 A CN 103067659A
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Abstract
The invention discloses a video analysis auxiliary hand-operated focusing method. Compared with the prior art that hand-operated focusing shot carries out focusing depending on a person relying on a picture or an enlarged picture, and therefore focusing is inaccurate. The video analysis auxiliary hand-operated focusing method uses a processor to analyze a video, detects acutance of an image border, after a digitalized comparison, provides accurate a reference value of a focusing result and indicates that accurate focusing is successful. A focusing state and a regular working state are switched through a specialized model set state to improve allocation of system resources. The video analysis auxiliary hand-operated focusing method avoids contradiction of allocation of system resources between excessive system resources which are occupied in a focusing state when the video is analyzed and system resources which are needed in regular work. The video analysis auxiliary hand-operated focusing method carries out an edge sharpness analysis to a region which needs major focusing in an image and compares a result after digitalized the analysis result. The video analysis auxiliary hand-operated focusing method judges the focusing accuracy state according to the digitalized result of the sharpness analysis. The video analysis auxiliary hand-operated focusing method timely feeds back the focusing accuracy degree to an operator to clearly prompt focusing success prompt or indication information.
Description
Technical field
The present invention relates to a kind of video analysis auxiliary hand-operating focusing method, belong to the digital video monitoring field.
Background technology
At present, in all kinds of video capture devices of the various installation manual focus lens in monitoring trade, when rigging up and debugging, all be when taking the commissioning staff to observe picture camera lens to be adjusted for the focusing of video.Because artificial factor impact, cause the indefinite or unclear situation of focusing object of focusing area, cause final imaging effect relatively poor, can not satisfy the requirement of high definition video collecting.
Summary of the invention
Technical problem to be solved by this invention is: for the problem of existing the manual focusing lens focusing accuracy when equipment is used, a kind of video analysis auxiliary hand-operating focusing mode is provided, utilize the system hardware of video equipment itself to process resource, increase the video analysis function at software, take image border acutance analysis as technical way, the focusing state indication information of the best is in time fed back to operating personnel, establish image capture device and reach best focusing effect.The object of the present invention is to provide a kind of focus error of avoiding more artificial factor to cause, accomplish automanual focusing mode.
Above-mentioned purpose of the present invention is achieved by the following technical solution:
A kind of video analysis auxiliary hand-operating focusing method comprises the steps:
1) enters the focusing mode of operation by model selection;
2) the focusing area scope arranges;
3) in focusing area arranges scope, image is carried out edge sharpness analysis and digitlization;
4) edge sharpness analysis and digitized value and standard value are compared judge whether that focusing is accurate;
5) providing focusing at operation interface when focusing accurately points out accurately.
In the present invention, focal modes and normal mode of operation are separately, are arranged by the user, judge whether to enter the focusing mode of operation by software, on operation interface, set the selection control switch of focal modes and mode of operation.Whether the operating state that detects user's setting in system processes is focal modes, if not focal modes, then enters into normal mode of operation and carries out normal work, and system does not increase extra resource overhead.If focal modes, then system enters focal modes and carries out the video analysis auxiliary focusing.
In the present invention, when entering focal modes, the user can arrange by video clip needs the accurately zone of focusing, in order to this setting regions is carried out video analysis and judgement.Select focusing area or scope by the picture frame of user on video pictures, system's later stage is analyzed for the picture of selection range, focusing area that like this can users, decrease in again the deal with data amount in later stage video pictures analytic process, be beneficial to and analyze more fast and accurately and process.
In the video image focusing area that the user sets, the user with edge sharpness analysis and the digital normalized of real-time image, compares with the standard value of setting in the process of operation lens focusing again, judges whether in the standard value range of setting.
Generally speaking, the standard value of default is 0～100 zone, and the accurate zone of will focusing is decided to be in 80～100 scopes.The standard of real time video image acutance normalized is processed according to 0～100, when the value after processing is entering in 80～100 zones, at the successful Warning Mark of operation interface prompting focusing, if not, then return continuation extraction user and again defocused image is analyzed judgement; If judge that the value of edge sharpness analysis and digitized processing in predefined scope, is judged to be and focuses successfully, export simultaneously indicative breath and feed back to the user.
Last flow process is returned and is continued the detection system mode of operation.The user obtain focusing successful prompting afterwards just can be with the normal mode of operation that is set to of system, whole like this equipment just enters accurately to defocused normal mode of operation work.
Description of drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is step schematic diagram of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
Whether the operating state that detects user's setting in system processes is focal modes, if not focal modes, then enters into normal mode of operation and carries out normal work, and system does not increase extra resource overhead.If focal modes, then system enters focal modes and carries out the video analysis auxiliary focusing.
In the video image focusing area that the user sets, the user in the process of operation lens focusing with edge sharpness analysis and the digitized processing of real-time image, compare with the standard value 0-100 that sets again, judge whether in the accurate regional 80-100 of focusing, if not, then return continuation extraction user and again defocused image is analyzed judgement; If judge that the value of edge sharpness analysis and digitized processing in predefined scope, is judged to be and focuses successfully, export simultaneously indicative breath and feed back to the user.
Last flow process is returned and is continued the detection system mode of operation.The user obtain focusing successful prompting afterwards just can be with the normal mode of operation that is set to of system, whole like this equipment just enters accurately to defocused normal mode of operation work.
Disclosed all features in this specification except mutually exclusive feature, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
Claims (7)
1. a video analysis auxiliary hand-operating focusing method comprises the steps:
1) enters the focusing mode of operation by model selection;
2) the focusing area scope arranges;
3) in focusing area arranges scope, image is processed;
4) value that processing is obtained and standard value compare and judge whether that focusing accurately;
5) providing focusing at operation interface when focusing accurately points out accurately.
2. the method for claim 1, wherein the described model selection of step 1 is to be separately with focal modes and normal mode of operation, is arranged by the user, judges whether to enter the focusing mode of operation by software.
3. method as claimed in claim 1 or 2, wherein the setting of the described focusing area scope of step 2 refers to that the user arranges by video clip needs the accurately zone of focusing.
4. such as each described method of claim 1-3, wherein the described processing of step 3 refers to image is carried out the edge sharpness analysis, and the digitlization normalization.
5. such as each described method of claim 1-4, wherein the described standard value of step 4 is 0-100.
6. such as each described method of claim 1-5, the processing costs that wherein obtains when step 3 is focusing accurately in the 80-100 of standard value scope.
7. such as the application of each described method of claim 1-6 in the video focusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105727901A CN103067659A (en) | 2012-12-26 | 2012-12-26 | Video analysis auxiliary hand-operated focusing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105727901A CN103067659A (en) | 2012-12-26 | 2012-12-26 | Video analysis auxiliary hand-operated focusing method |
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| CN103067659A true CN103067659A (en) | 2013-04-24 |
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| CN2012105727901A Pending CN103067659A (en) | 2012-12-26 | 2012-12-26 | Video analysis auxiliary hand-operated focusing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108513709A (en) * | 2017-08-25 | 2018-09-07 | 深圳市大疆创新科技有限公司 | Manual focus householder method, device and unmanned vehicle |
| CN108765346A (en) * | 2018-05-30 | 2018-11-06 | 北京图森未来科技有限公司 | A kind of auxilary focusing method, device and readable medium |
| CN111193860A (en) * | 2019-09-09 | 2020-05-22 | 浙江国自机器人技术有限公司 | One-frame calibration method for working point positions of inspection robot |
| CN111198466A (en) * | 2018-11-16 | 2020-05-26 | 北京图森智途科技有限公司 | Manual focusing auxiliary method, imaging device and automobile |
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| CN108513709A (en) * | 2017-08-25 | 2018-09-07 | 深圳市大疆创新科技有限公司 | Manual focus householder method, device and unmanned vehicle |
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| CN108765346B (en) * | 2018-05-30 | 2021-01-08 | 北京图森智途科技有限公司 | Auxiliary focusing method and device and readable medium |
| CN111198466A (en) * | 2018-11-16 | 2020-05-26 | 北京图森智途科技有限公司 | Manual focusing auxiliary method, imaging device and automobile |
| CN111198466B (en) * | 2018-11-16 | 2022-06-21 | 北京图森智途科技有限公司 | Manual focusing auxiliary method, imaging device and automobile |
| CN111193860A (en) * | 2019-09-09 | 2020-05-22 | 浙江国自机器人技术有限公司 | One-frame calibration method for working point positions of inspection robot |
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Application publication date: 20130424 |