CN106067168A - A kind of unmanned plane image change recognition methods - Google Patents
A kind of unmanned plane image change recognition methods Download PDFInfo
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- CN106067168A CN106067168A CN201610347137.3A CN201610347137A CN106067168A CN 106067168 A CN106067168 A CN 106067168A CN 201610347137 A CN201610347137 A CN 201610347137A CN 106067168 A CN106067168 A CN 106067168A
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- unmanned plane
- image
- recognition methods
- change recognition
- image change
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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Abstract
The open a kind of unmanned plane image change recognition methods of the present invention, comprises the following steps: 1) unmanned plane periodically gathers the photo with geographical location information and time；2) photo of same place different cycles is registrated；3) image comparison identification labelling are carried out；4) the discrepant part of tool is irised out；This unmanned plane image change recognition methods utilizes unmanned plane aerial photographing have angled photo and carry out contrast and identify, can by process that urban development changes intuitively efficiently and have presenting of comparative.
Description
Technical field
The invention belongs to graphic information processing and transmission field, be specifically related to a kind of unmanned plane image change recognition methods.
Background technology
The technology utilizing satellite photo to carry out figure speckle contrast has been developed a period of time, national planning soil dependent part
Door utilization is defended sheet and is enforced the law, the region of labelling figure speckle change, examines that it builds legitimacy.
Above-mentioned technology have been able to find roof add build, the Illegal Construction behaviors such as construction of breaking ground, but be constrained to satellite clap
The condition taken the photograph, it is impossible to accomplish to update in the shorter cycle, and orthophotoquad has the house of ceiling to add to build and be difficult to distinguish for some
Not.
Summary of the invention
The present invention is directed to prior art problem, it is provided that one utilizes unmanned plane aerial photographing to have angled photo and goes forward side by side
Row contrast identifies, can by process that urban development changes intuitively efficiently and have the unmanned plane image presented of comparative to become
Change recognition methods.
Technology and method in order to solve the employing of the above-mentioned problem present invention are as follows:
A kind of unmanned plane image change recognition methods, comprises the following steps: 1) unmanned plane periodically gathers has geographical position
Confidence breath and the photo of time；2) photo of same place different cycles is registrated；3) carry out image comparison identification and mark
Note；4) the discrepant part of tool is irised out.
Further, in step 1) in, when choosing spot for photography, first determine the shooting cycle, and keep illumination consistent time
Between shoot.
Further, in step 1) in, during unmanned plane operation, first lift-off keeps unmanned plane floating state, and around shooting
Underface and around image, gather panoramic information, simultaneously record time and geographical location information.
Further, in step 2) in, when photo registrates, first extract image characteristic point；Then carry out computing to find
The characteristic point joined；Image registration is carried out finally by coordinate transform.
Further, in step 3) in, when contrast identifies, first choose the image registrated；Then image difference is carried out
Contrast.
Further, in step 3) in, when being marked, first the difference that image difference contrast identifies is carried out noise
Eliminate.
The invention have the benefit that the image utilizing the aerial visual angle of unmanned plane to gather has bigger compared to satellite photo
Differential seat angle, preferably to building change contrast；Utilize the image that unmanned plane shoots compared to the apparent degree of satellite photo
And having higher ageing, actual application value is bigger；Unmanned plane is utilized to carry out planning clay supervision cost less expensive；Because
Can shoot at any time, the image utilizing unmanned plane to shoot is affected less by uncertain factors such as weather.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but they are not to technical solution of the present invention
Restriction, based on present invention teach that any conversion made, all fall within protection scope of the present invention.
Refering to shown in Fig. 1, a kind of unmanned plane image change recognition methods, comprising the following steps: 1) unmanned plane periodically adopts
Collection has the photo of geographical location information and time；2) photo of same place different cycles is registrated；3) image is carried out
Contrast identifies and labelling；4) the discrepant part of tool is irised out.
In step 1) in, when choosing spot for photography, first determine the shooting cycle, and the time keeping illumination consistent claps
Take the photograph.
In step 1) in, during unmanned plane operation, first lift-off keeps immediately below unmanned plane floating state, and cincture shooting and week
Enclose image, gather panoramic information, simultaneously record time and geographical location information.
In step 2) in, when photo registrates, first extract image characteristic point；Then carry out computing and find the feature of coupling
Point；Image registration is carried out finally by coordinate transform.
In step 3) in, when contrast identifies, first choose the image registrated；Then image difference contrast is carried out.
In step 3) in, when being marked, first the difference that image difference contrast identifies is carried out noise elimination.
Embodiment:
1) choose spot for photography and carry out shooting preparation；
2) unmanned plane carries out periodically shooting operation, and recording time and geographical location information；
3) image registration process is carried out；
4) contrast Recognition Different region labelling；
5) image after output token；
6) user checks diff area, judges.
The invention have the benefit that the image utilizing the aerial visual angle of unmanned plane to gather has bigger compared to satellite photo
Differential seat angle, preferably to building change contrast；Utilize the image that unmanned plane shoots compared to the apparent degree of satellite photo
And having higher ageing, actual application value is bigger；Unmanned plane is utilized to carry out planning clay supervision cost less expensive；Because
Can shoot at any time, the image utilizing unmanned plane to shoot is affected less by uncertain factors such as weather.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
The change expected without creative work or replacement, all should contain within protection scope of the present invention, therefore, and the present invention's
Protection domain should be as the criterion with the protection domain that claims are limited.
Claims (8)
1. a unmanned plane image change recognition methods, it is characterised in that comprise the following steps: 1) unmanned plane periodically collection tool
There is the photo of geographical location information and time；2) photo of same place different cycles is registrated；3) image comparison is carried out
Identify and labelling；4) the discrepant part of tool is irised out.
2. unmanned plane image change recognition methods as claimed in claim 1, it is characterised in that: in step 1) in, choose shooting
During place, first determine the shooting cycle, and the time keeping illumination consistent shoots.
3. unmanned plane image change recognition methods as claimed in claim 2, it is characterised in that: in step 1) in, unmanned plane is made
During industry, first lift-off keeps unmanned plane floating state, and image immediately below shooting and around, gathers panoramic information, remembers simultaneously
Record time and geographical location information.
4. the unmanned plane image change recognition methods as described in claim 1 or 3, it is characterised in that: in step 2) in, at photo
During registration, first extract image characteristic point；Then carry out computing and find the characteristic point of coupling；Image is carried out finally by coordinate transform
Registration.
5. the unmanned plane image change recognition methods as described in claim 1 or 3, it is characterised in that: in step 3) in, in contrast
During identification, first choose the image registrated；Then image difference contrast is carried out.
6. unmanned plane image change recognition methods as claimed in claim 5, it is characterised in that: in step 3) in, marking
Clock, first the difference that image difference contrast identifies is carried out noise elimination.
7. unmanned plane image change recognition methods as claimed in claim 4, it is characterised in that: in step 3) in, know in contrast
Time other, first choose the image registrated；Then image difference contrast is carried out.
8. unmanned plane image change recognition methods as claimed in claim 7, it is characterised in that: in step 3) in, marking
Clock, first the difference that image difference contrast identifies is carried out noise elimination.
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| CN201610347137.3A CN106067168A (en) | 2016-05-25 | 2016-05-25 | A kind of unmanned plane image change recognition methods |
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Cited By (4)
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| CN106643664A (en) * | 2016-12-28 | 2017-05-10 | 湖南省道通科技有限公司 | Method and device for positioning unmanned aerial vehicle |
| CN109029378A (en) * | 2018-08-13 | 2018-12-18 | 徐州飞梦电子科技有限公司 | It is a kind of based on the farmland fire monitoring method for being tethered at unmanned plane |
| CN109978811A (en) * | 2017-12-27 | 2019-07-05 | 财团法人工业技术研究院 | Medical image difference comparison method and its system |
| CN113240627A (en) * | 2021-04-08 | 2021-08-10 | 广东泰一高新技术发展有限公司 | Urban pattern spot data acquisition method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106643664A (en) * | 2016-12-28 | 2017-05-10 | 湖南省道通科技有限公司 | Method and device for positioning unmanned aerial vehicle |
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