CN109756675A - A kind of mountain region disaster dynamic panorama analogy method and system - Google Patents
A kind of mountain region disaster dynamic panorama analogy method and system Download PDFInfo
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- CN109756675A CN109756675A CN201811550884.2A CN201811550884A CN109756675A CN 109756675 A CN109756675 A CN 109756675A CN 201811550884 A CN201811550884 A CN 201811550884A CN 109756675 A CN109756675 A CN 109756675A
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Abstract
The present invention provides a kind of mountain region disaster dynamic panorama analogy method and 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.For this method by combining video texture and panorama sketch, the mountain region disasters deformation process Dynamic Panorama such as construction landslide, mud-rock flow simulates the motion process of mountain region disaster.
Description
Technical field
The present invention relates to geological disaster fields, in particular to a kind of mountain region disaster dynamic panorama analogy method and are
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.At this stage due to
The emergentness of the mountain region disasters such as landslide and mud-rock flow, the mountain region disasters generating process such as landslide and mud-rock flow are difficult have live video,
The video of only a small number of discontinuous picture and only a few is saved in other words, and image data extremely lacks.
The motion process of mountain region disaster is particularly important to the research of mountain region disaster Forming Mechanism, process of deformation and failure, lacks
The image of the process of mountain region disaster leads to the inverting to the mountain region disasters generating process such as landslide, mud-rock flow, and there are certain subjectivities
Property, the development in geological disaster process analysis procedure analysis field is constrained to a certain extent.
Summary of the invention
The present invention provides a kind of mountain region disaster dynamic panorama analogy methods, it is intended to it is universal to improve mountain region disaster research process
There are problems that lacking disaster motion process image.
The present invention is implemented as follows:
A kind of mountain region disaster dynamic panorama analogy method, 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；
Preferably, the above method further includes step 5: 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
Take the photograph the more phase images of acquisition data and shooting mountain region disaster movement front and back.
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 processes such as above-mentioned mountainous region landslide, mud-rock flow is difficult to be recorded to, therefore can be by acquiring mountain
The more phase images in ground disaster deformation front and back, obtain its motion process image using post-processing software.Background is defined as video sequence
Static ingredient in column, extracting background image can detecte the moving object in video sequence, and then enhance video texture synthesis
Stability.Classical background modeling method includes that 1 mean value of median filter method on time shaft adds Variance Method and mixing
Gauss model method etc..Since the sampling time of video texture is shorter, without apparent optical illumination condition variation, it is preferable to use
Simplest time shaft median filter method extracts background image.Each frame of sequence image subtracts background image and obtains differential chart
Picture, the pixel only covered by moving object have the value for being significantly greater than 0, select suitable threshold value, will be less than the pixel of threshold value
It is set to 0.Using the smooth error image of simple filtering algorithm, by above-mentioned processing, sequence image is represented as only comprising movement
The error image of object.In video texture synthesis below, the similarity of interframe is calculated using these error images, is guaranteed
It plays present frame and finds next frame from original video later, do 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.
The present invention also provides a kind of mountain region disaster dynamic panorama simulation systems, 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.
Preferably, above-mentioned processor is also used to run described program instruction: using cloud software editing, uploading dynamic panorama
Figure realizes that internet type is shared.
Compared with the prior art, the invention has the following advantages:
By, according to acquisition, video texture and panorama sketch being combined, structure using the more issues of mountain region disaster under same viewpoint
The mountain region disasters deformation process Dynamic Panorama such as landslide, mud-rock flow is made, the motion process of mountain region disaster is simulated, is mountainous region
The research achievement of disaster provides verifying.
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.A kind of mountain region disaster is dynamic
State panorama analogy method, 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
Corresponding video, by video sequence image be represented as only comprising moving object error image below video texture synthesize
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) 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, according to acquisition, video texture and panorama sketch being combined, structure using the more issues of mountain region disaster under same viewpoint
The mountain region disasters deformation process Dynamic Panorama such as landslide, mud-rock flow is made, the motion process of mountain region disaster is simulated.By mutual
The motion process of the mountain region disasters actual examples such as mountainous region landslide, mud-rock flow and deformation are predominately supervised information sharing by networking
Measured quantity data are taken in face of people, and local resident is allowed more really to recognize the amoeboid movement situation of disaster, to select to close
Escape time, route and the means of saving oneself of reason.
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 (9)
1. a kind of mountain region disaster dynamic panorama analogy method, 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.
2. a kind of mountain region disaster dynamic panorama analogy method as described in claim 1, which is characterized in that the above method further includes
Step 5: using cloud software editing, uploading Dynamic Panorama, more phase images are superimposed achievement, realize that internet type is shared.
3. a kind of mountain region disaster dynamic panorama analogy method as described in claim 1, which is characterized in that same in the step 1
The method that mountain region disaster data acquire under one viewpoint are as follows: moved using unmanned plane fixed point shooting, collecting data and shooting mountain region disaster
The more phase images in front and back.
4. a kind of mountain region disaster dynamic panorama analogy method as claimed in claim 3, which is characterized in that sharp in the step 1
With the method for unmanned plane fixed point 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 dynamic panorama analogy method as described in claim 1, which is characterized in that make in the step 2
The splicing and synthesis of static panorama figure, the hyperbola interpolation are realized with PTGUI software or using hyperbola interpolation algorithm
Algorithm realizes the splicing and synthesis of static panorama figure 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 dynamic panorama analogy method as described in claim 1, which is characterized in that mountain in the step 3
The generation method of ground disaster motion 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 dynamic panorama analogy method as claimed in claim 6, which is characterized in that use entropy in step 4
The method of compression compresses video texture.
8. a kind of mountain region disaster dynamic panorama analogy method as described in claim 1, which is characterized in that in the step 4
Both static panorama figure and video texture are combined the method for generating construction Dynamic Panorama specifically include: will be under the same viewpoint
Static panorama figure and the video texture alignment of shooting eliminate color between video texture and panorama sketch using color blend algorithm
It is inconsistent, the two is synthesized into Dynamic Panorama.
9. a kind of mountain region disaster dynamic panorama simulation 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.
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