CN109584512A - A kind of mountain region disaster method for early warning and early warning system - Google Patents

A kind of mountain region disaster method for early warning and early warning system Download PDF

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Publication number
CN109584512A
CN109584512A CN201811550115.2A CN201811550115A CN109584512A CN 109584512 A CN109584512 A CN 109584512A CN 201811550115 A CN201811550115 A CN 201811550115A CN 109584512 A CN109584512 A CN 109584512A
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mountain region
panorama
region disaster
disaster
early warning
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王东坡
徐青松
裴向军
刘梦亮
李童
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Chengdu Univeristy of Technology
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Chengdu Univeristy of Technology
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/10Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00Geometric image transformations in the plane of the image
    • G06T3/40Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4038Image mosaicing, e.g. composing plane images from plane sub-images
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00Image enhancement or restoration
    • G06T5/70Denoising; Smoothing
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B31/00Predictive alarm systems characterised by extrapolation or other computation using updated historic data
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/10Image acquisition modality
    • G06T2207/10016Video; Image sequence
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/20Special algorithmic details
    • G06T2207/20024Filtering details
    • G06T2207/20032Median filtering
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/20Special algorithmic details
    • G06T2207/20212Image combination
    • G06T2207/20221Image fusion; Image merging
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30181Earth observation
    • G06T2207/30184Infrastructure

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Alarm Systems (AREA)

Abstract

The present invention provides a kind of mountain region disaster method for early warning and early warning system, include the following steps: that mountain region disaster data acquire under same viewpoint;The splicing and synthesis of static panorama figure;The generation of mountain region disaster motion process video texture;Both static panorama figure and video texture are combined and generate construction Dynamic Panorama;More phase images are superimposed, the variation of quantitative analysis mountain region disaster deformation front and back elevation and horizontal displacement.This method is by combining video texture and panorama sketch, the mountain region disasters deformation process Dynamic Panorama such as construction landslide, mud-rock flow, while more phase images being superimposed, and obtains mountain region disaster deformation data quantitative analysis achievement, realizes the early warning to mountain region disaster.

Description

A kind of mountain region disaster method for early warning and early warning system
Technical field
The present invention relates to Geological Hazards Monitoring early warning fields, in particular to a kind of mountain region disaster method for early warning and in advance Alert system.
Background technique
Currently, mountain region disaster, to come down, based on mud-rock flow, in most cases landslide and mud-rock flow are all the shadows in heavy rain Under sound, occur that sliding and flowing occur rapidly under gravity.
Mountain region disaster often has sudden and catastrophic, generation rapidly in a relatively short period of time, with biggish broken Bad property.The generating process of mountain region disaster is of short duration, and by taking landslide as an example, entire sliding process is usually at 1 minute or so, once landslide calamity Evil occurs, and escapes within the so of short duration time extremely difficult.Therefore, mountain region disaster give warning in advance it is particularly important.
Summary of the invention
The present invention provides a kind of mountain region disaster method for early warning, it is intended to improve mountain region disaster early warning problem.
The present invention is implemented as follows:
A kind of mountain region disaster dynamic panorama obtains and the method for early warning, includes the following steps:
Step 1: mountain region disaster data acquire under same viewpoint;
Step 2: the splicing and synthesis of static panorama figure;
Step 3: the generation of mountain region disaster motion process video texture;
Step 4: both static panorama figure and video texture being combined and generate construction Dynamic Panorama;
Step 5: more phase images being superimposed, the variation of quantitative analysis mountain region disaster deformation front and back elevation and horizontal displacement.
Preferably, the above method further includes step 6: using cloud software editing, uploading Dynamic Panorama, more phase image superpositions Achievement realizes that internet type is shared.
Preferably, in the step 1 under same viewpoint mountain region disaster material collection method are as follows: using unmanned plane fixed point clap It takes the photograph acquisition data and shooting mountain region disaster moves preceding more phase images.
It is furthermore preferred that utilizing the method for unmanned plane fixed point shooting, collecting data in the step 1 specifically:
A. four circle of unmanned plane fixed point shooting acquires data, first lap: holder, which is faced upward, appears in 3 equal subnettings to mountain region disaster body Ruling bottom 8-10 photos of one line parallel transverse shooting, 30 ° every turn are clapped one;Second circle: this circle laterally shoots photo 8 , 45 ° every turn are clapped one;Third circle: since shooting is no longer horizontal, laterally bat 6, every turn of 60 ° of bats one;4th circle: Downward pitching with regard to face ground, is spaced 60 degree and claps 2 substantially.
Preferably, static panorama figure is realized using PTGUI software in the step 2 or using hyperbola interpolation algorithm Splicing and synthesis, the hyperbola interpolation algorithm realize the splicing and synthesis of static panorama figure method particularly includes:
(1) it obtains spherical panorama sketch: the serial-gram (totally 360 degree) of multiple certain angular intervals of unmanned plane acquisition is existed Spherical panorama sketch is obtained using the central point of camera lens, focal length as successive projection on the corresponding spherome surface of radius;
(2) hyperbola interpolation algorithm obtains column panorama sketch: any point on photo is closed according to the geometry of formula 1, formula 2 System is coordinately transformed to obtain the coordinate for projecting to spherome surface, after obtaining the corresponding relationship of pixel, to each pixel of photo Gray value carries out interpolation, obtains the gray value of each pixel of cylinder,
(3) day and image procossing are mended: carrying out mending day and image processing operations using subsequent pictures software for editing, obtain more True static panorama figure.
Preferably, above-mentioned subsequent pictures software for editing is Adobe or Photoshop.
The basic principle of above-mentioned acquisition column panorama sketch be according to camera imaging principle, camera lens center to egative film away from From being approximately equal to lens focus, and the central point of lens is exactly imaginary panorama observation point, is half with focal length centered on being put by this The corresponding spherome surface of diameter is exactly panoramic projection face, by the serial-gram of multiple certain angular intervals, unmanned plane shooting totally 360 Degree, the image that successive projection goes out on this perspective plane is exactly spherical panorama sketch.
Preferably, in the step 3 mountain region disaster motion process video texture generation method specifically:
(1) video production: the image for the mountain region disaster motion process that step 1 is shot is made using video production software At video clip;
(2) background modeling: defining background is ingredient static in video sequence, extracts background using time shaft filtering method Figure, each frame of video sequence image subtract background image and obtain error image only comprising moving object;
(3) video texture synthesizes: the distance between any two frame in calculating difference image sequence is stored in two-dimensional array In, synthesis obtains video texture.There are two types of broadcast modes for video texture: shuffle and loop play, the former is general according to transfer Rate determines which frame plays after the current frame with Monte Carlo Method, and the latter selects some frame sequence shapes with harmonic(-)mean cost At circulation.
Preferably, the filtering algorithm is median filtering or gaussian filtering, using this filtering to image procossing, elimination noise Influence, smooth error image, sequence image be represented as only include moving object error image.
The image of the mountain region disasters motion process such as above-mentioned landslide, mud-rock flow is difficult to be recorded to, therefore can be by acquiring mountainous region calamity Evil amoeboid movement process and deformation front and back image, obtain its motion process image using post-processing software.Background is defined as Static ingredient in video sequence, extracting background image can detecte the moving object in video sequence, and then enhance video line Manage the stability of synthesis.Classical background modeling method include median filter method, mean value on time shaft add Variance Method with And mixed Gauss model method etc..Since the sampling time of video texture is shorter, change without apparent optical illumination condition, it is excellent Choosing extracts background image using simplest time shaft median filter method.Each frame of sequence image subtracts background image and obtains Error image, the pixel only covered by moving object have the value for being significantly greater than 0, select suitable threshold value, will be less than threshold value Pixel be set to 0.Using the smooth error image of simple filtering algorithm, by above-mentioned processing, sequence image is represented as only wrapping Error image containing moving object.In video texture synthesis below, the similarity of interframe is calculated using these error images, Guarantee to find next frame from original video after playing present frame, not cause visual discontinuous.
Preferably, video texture is compressed using the method for entropic spueezing in step 4.
Each frame of above-mentioned video texture and the difference of background image are very small, in the difference of video texture and background image There was only the pixel of moving object in image has biggish value, and the redundancy of image is further reduced with suitable threshold filter The region of moving object can also be extracted.
Preferably, both static panorama figure and video texture are combined in the step 4 and generates construction Dynamic Panorama Method specifically include: by the static panorama figure and video texture that are shot under the same viewpoint alignment, using color blend algorithm Color is inconsistent between elimination video texture and panorama sketch, and the two is synthesized Dynamic Panorama.
User changes the focal length of video camera when shooting video texture when above-mentioned construction Dynamic Panorama, in such case Under, the variation of graphical rule is extracted using a kind of technique of alignment based on FFT.Then video texture is projected according to alignment parameter Onto panorama sketch.
Preferably, more phase images are superimposed in the step 5, quantitative analysis mountain region disaster deformation front and back elevation and horizontal position The method of the variation of shifting specifically includes: deformation front and back image being imported Arcgis, extracts longitude, latitude, the coordinate of elevation will become Image subtracts each other before and after shape, obtains the horizontal and vertical change in displacement of disaster body, and the deformation behaviour of quantitative analysis disaster body is disaster body Monitoring and warning provides quantitative data.
It is obtained the present invention also provides a kind of mountain region disaster dynamic panorama and pre-warning system, including memory and processor, Wherein:
The memory is for storing program instruction;
The processor is for running described program instruction, to execute following steps:
Mountain region disaster data acquire under same viewpoint;
The splicing and synthesis of static panorama figure;
The generation of mountain region disaster stream motion process video texture;
Both static panorama figure and video texture are combined and generate construction Dynamic Panorama;
More phase images are superimposed, the variation of quantitative analysis mountain region disaster deformation front and back elevation and horizontal displacement.
Preferably, above-mentioned processor is also used to run described program instruction: using cloud software editing, uploading dynamic panorama Figure, more phase images are superimposed achievement, realize that internet type is shared.
Compared with the prior art, the invention has the following advantages:
By the way that video texture and panorama sketch are combined, the mountain region disasters deformation process dynamic such as construction landslide, mud-rock flow Panorama sketch, while more phase images being superimposed, mountain region disaster deformation data quantitative analysis achievement is obtained, before deforming according to mountain region disaster The variation of elevation and horizontal displacement afterwards realizes the early warning to mountain region disaster.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is that unmanned plane pinpoints figure part selection figure of taking photo by plane in the embodiment of the present invention;
Fig. 2 is spherical static panorama figure in the embodiment of the present invention;
Fig. 3 is that video texture extracts result and with lines indicates result figure in the embodiment of the present invention;
Fig. 4 is video texture result result figure in conjunction with the static panorama figure in December in the embodiment of the present invention;
Fig. 5 is Chinese and Western of embodiment of the present invention mountain village deformation data result figure.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention The range of protection.
It is noted that described further below be all exemplary, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.
Present invention will be further explained below with reference to the attached drawings and examples, in order to the reason of those of ordinary skill in the art Solution:
Embodiment 1
To the west of for the landslide of mountain village, according to geological researching data, come down to Western Hills village and implement monitoring and warning.A kind of mountainous region calamity Evil method for early warning, including the following steps:
(1) 720 ° of panorama sketch of taking photo by plane are pinpointed using unmanned plane, carries out live shadow in Septembers, 2017 and in December, 2017 respectively As acquisition.Establish corresponding document folder, such as Fig. 1, wherein (a) be September part take photo by plane figure selection, (b) for October take photo by plane figure selection.
(2) according to camera imaging principle, by unmanned plane respectively in September and multiple serial-grams of acquisition in December on perspective plane Upper successive projection goes out spherical static panorama figure, while carrying out mending day and image procossing.As shown in Fig. 2, wherein picture is long: wide=2: 1。
(3) landslide video texture is extracted makes with dynamic panoramic scene: two Zhang Quanjing's figures that step (2) make are fabricated to Video sequence image is represented as error image only comprising moving object by corresponding video.In video texture synthesis below When, the similarity of interframe is calculated using these error images.It is visual discontinuous according to caused by two frames, it extracts sliding in video Slope motion texture.For convenience of expression, the texture of extraction is indicated with lines, as shown in figure 3, wherein solid line indicates the September Come down texture curve;Dotted line indicates December landslide texture curve.
(4) video texture and the static panorama figure in December extracted step (3) combines, as shown in Figure 4.
(5) two phase images are overlapped deformation characteristic in advance: the coordinate elevation of two phase images in advance, before quantitative analysis deformation The variation of elevation and horizontal displacement afterwards provides quantitative data for mountain region disaster monitoring, provides disaster timely predictive information, such as scheme Shown in 5, subtract each other elevation in December and September part elevation to obtain its elevation deformation data.
(6) Dynamic Panorama is edited using 720 cloud softwares, adds the deformation data of two phase images as hot spot, Internet is shared with local resident, allow they understand in time Western Hills village landslide dynamic, and select reasonable escape time, route and It saves oneself means.
The present invention at least has the advantages that
By the way that video texture and panorama sketch are combined, the mountain region disasters motion process dynamic such as construction landslide, mud-rock flow Panorama sketch, while mountain region disaster deformation data quantitative analysis achievement is added, it realizes the acquisition of mountain region disaster dynamic panorama, simultaneously will More phase image superpositions, obtain mountain region disaster deformation data quantitative analysis achievement, realize the early warning to mountain region disaster.Pass through interconnection Net is by information sharing, predominately by the motion process and deformation monitoring of the mountain region disasters actual examples such as mountainous region landslide, mud-rock flow Quantitative data takes in face of people, and local resident is allowed more really to recognize the amoeboid movement situation of disaster, so that selection is reasonable Escape time, route and means of saving oneself.
The above is only the preferred embodiment of the present invention, are not intended to restrict the invention, for the technology of this field For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of mountain region disaster method for early warning, which comprises the steps of:
Step 1: mountain region disaster data acquire under same viewpoint;
Step 2: the splicing and synthesis of static panorama figure;
Step 3: the generation of mountain region disaster motion process video texture;
Step 4: both static panorama figure and video texture being combined and generate construction Dynamic Panorama;
Step 5: more phase images being superimposed, the variation of quantitative analysis mountain region disaster deformation front and back elevation and horizontal displacement.
2. a kind of mountain region disaster method for early warning as described in claim 1, which is characterized in that the above method further includes step 6: benefit With cloud software editing, Dynamic Panorama is uploaded, more phase images are superimposed achievement, realize that internet type is shared.
3. a kind of mountain region disaster method for early warning as described in claim 1, which is characterized in that in the step 1 under same viewpoint The method of mountain region disaster data acquisition are as follows: more phase images before being moved using unmanned plane fixed point shooting, collecting data and mountain region disaster.
4. a kind of mountain region disaster method for early warning as claimed in claim 3, which is characterized in that utilize unmanned plane in the step 1 The method for pinpointing shooting, collecting data specifically:
A. four circle acquisition data of unmanned plane fixed point shooting, first lap: holder, which is faced upward, to be appeared in 3 etc. to mountain region disaster body and divides grid lines Bottom 8-10 photos of one line parallel transverse shooting, 30 ° every turn are clapped one;Second circle: this circle laterally open by shooting photo 8, 45 ° every turn are clapped one;Third circle: since shooting is no longer horizontal, laterally bat 6, every turn of 60 ° of bats one;4th circle: downward Pitching with regard to face ground, is spaced 60 degree and claps 2 substantially.
5. a kind of mountain region disaster method for early warning as described in claim 1, which is characterized in that soft using PTGUI in the step 2 Part or the splicing and synthesis that static panorama figure is realized using hyperbola interpolation algorithm, the hyperbola interpolation algorithm is realized quiet The splicing of state panorama sketch and synthesis method particularly includes:
(1) spherical panorama sketch is obtained: by the serial-gram (totally 360 degree) of multiple certain angular intervals of unmanned plane acquisition with phase Central point, the focal length of machine lens are that successive projection obtains spherical panorama sketch on the corresponding spherome surface of radius;
(2) hyperbola interpolation algorithm obtain column panorama sketch: by any point on photo according to formula 1, the geometrical relationship of formula 2 into Row coordinate transform obtains projecting to the coordinate of spherome surface, after obtaining the corresponding relationship of pixel, to each pixel grey scale of photo Value carries out interpolation, obtains the gray value of each pixel of cylinder;
(3) day and image procossing are mended: carrying out mending day and image processing operations using subsequent pictures software for editing, is obtained more true Static panorama figure.
6. a kind of mountain region disaster method for early warning as described in claim 1, which is characterized in that mountain region disaster becomes in the step 3 The generation method of shape process video texture specifically:
(1) video production: the image for the mountain region disaster motion process that step 1 is shot is fabricated to view using video production software Frequency segment;
(2) background modeling: defining background is ingredient static in video sequence, extracts Background using time shaft filtering method, Each frame of video sequence image subtracts background image and obtains error image only comprising moving object;
(3) video texture synthesizes: the distance between any two frame in calculating difference image sequence is stored in two-dimensional array, is closed At obtaining video texture.
7. a kind of mountain region disaster method for early warning as claimed in claim 6, which is characterized in that use the side of entropic spueezing in step 4 Method compresses video texture.
8. a kind of mountain region disaster method for early warning as described in claim 1, which is characterized in that will be static complete in the step 4 Both scape figure and video texture combine the method for generating construction Dynamic Panorama to specifically include: quiet by what is shot under the same viewpoint The inconsistent of color between video texture and panorama sketch is eliminated in state panorama sketch and video texture alignment using color blend algorithm, The two is synthesized into Dynamic Panorama.
9. a kind of mountain region disaster method for early warning as described in claim 1, which is characterized in that by more phase images in the step 5 The method of the variation of superposition, quantitative analysis mountain region disaster deformation front and back elevation and horizontal displacement, specifically includes: by deformation front and back shadow As importing Arcgis, longitude, latitude are extracted, deformation front and back image is subtracted each other, it is horizontal and vertical to obtain disaster body by the coordinate of elevation Change in displacement, the deformation behaviour of quantitative analysis disaster body provide quantitative data for disaster body monitoring and warning.
10. a kind of mountain region disaster early warning system, which is characterized in that including memory and processor, in which:
The memory is for storing program instruction;
The processor is for running described program instruction, to execute following steps:
Mountain region disaster data acquire under same viewpoint;
The splicing and synthesis of static panorama figure;
The generation of mountain region disaster motion process video texture;
Both static panorama figure and video texture are combined and generate construction Dynamic Panorama;
More phase images are superimposed, the variation of quantitative analysis mountain region disaster deformation front and back elevation and horizontal displacement.
CN201811550115.2A 2018-12-18 2018-12-18 A kind of mountain region disaster method for early warning and early warning system Pending CN109584512A (en)

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CN111006593A (en) * 2019-12-13 2020-04-14 武汉纵横天地空间信息技术有限公司 Method and system for monitoring mountain landform and predicting landslide by using unmanned aerial vehicle
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