CN103759720B - Aerophotogrammetric field work digitizing thorn point methods - Google Patents
Aerophotogrammetric field work digitizing thorn point methods Download PDFInfo
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- CN103759720B CN103759720B CN201310582090.5A CN201310582090A CN103759720B CN 103759720 B CN103759720 B CN 103759720B CN 201310582090 A CN201310582090 A CN 201310582090A CN 103759720 B CN103759720 B CN 103759720B
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- control point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
Abstract
The present invention is a kind of aerophotogrammetric field work digitizing thorn point methods, it is characterized in that: aerophotogrammetric field work digitizing thorn point methods, it is characterized in that: at least comprise the steps: step 101: interior industry reconnaissance module: lay to cover and survey the alternative photo control point of district's sufficient amount, and digital aerial imagery and alternative photo control point rough coordinates are imported digital field thorn point device; Step 102: field operation reconnaissance module: by digital field thorn point device, in the corresponding scene of all alternative photo control point that step 101 is selected, digital aerial imagery is demarcated final photo control point information, and set up its ground coordinate of Instrument measuring <i>Po(X, Y, H) </i>.This aerophotogrammetric field work digitizing thorn point methods, it can improve thorn point operating efficiency and precision, strengthens operation popularization and convenience.
Description
Technical field
The present invention relates to a kind of aerophotogrammetric field work digitizing thorn point methods.
Background technology
Thorn point achievement in photogrammetric measurement field operation is as the operation foundation of empty three encryptions of interior industry, and its precision directly determines follow-up photogrammetric office work measuring accuracy; In addition, the defective meeting of thorn point causes does over again, thus causes claim for eot, and engineering cost increases, and the work of thorn point does not complete and interior industry work can be caused to start, thus extends integrated engineering progress.
The thorn point operation main task of aerophotogrammetric field work: lay to cover and survey the alternative photo control point of district's sufficient amount, after determining alternative photo control point particular location at the scene, obtain each photo control point
ptaccurate photo control point information and field ground coordinate on digital aerial imagery
po(XYH).
The tradition of tradition aerophotogrammetric field work is stung the key step selecting work pattern and is: 1., industry develops and prints out papery aviation image as thorn spot film; 2. according to degree of overlapping, alternative photo control point general location drawn a circle to approve by thorn spot film; 3. technician determines effective atural object at the scene according to the photo control point reconnaissance condition in " 1:5001:10001:2000 topomap photogrammetric measurement field operation specification " (GB/T7931-2008); 4., after selecting by magnifier, on photo, sting a pin hole (diameter is not more than 0.1mm) with embroidery needle, and described with the form of " description of station ", set up instrument afterwards, measure this some accurate coordinate value on the spot.There is the defect of following several respects in tradition thorn point methods: 1. because photo control point reconnaissance condition is strict, requires that operator possesses higher profession basis and experience, not easily Technique Popularizing.2. because papery photo cannot amplify, micro topographical is difficult to accurate display, and thorn point exists skew, and indivedual some positions thorn point tolerance transfinites and easily does over again.3. in landform and road complex area, design scene, photo control point position is arrived at comparatively consuming time.4. traditionally on paper achievement is easily damaged, not Portable belt, and in the passback of field operation achievement, industry speed is slow.
Summary of the invention
The object of this invention is to provide one and can improve thorn point operating efficiency and precision, strengthen the aerophotogrammetric field work digitizing thorn point methods of operation popularization and convenience.
The object of the invention is to be realized by following technical method, aerophotogrammetric field work digitizing thorn point methods, is characterized in that: at least comprise the steps:
Step 101: interior industry reconnaissance module: lay to cover and survey the alternative photo control point of district's sufficient amount, and digital aerial imagery and alternative photo control point rough coordinates are imported digital field thorn point device;
Step 102: field operation reconnaissance module: by digital field thorn point device, in the corresponding scene of all alternative photo control point that step 101 is selected, digital aerial imagery is demarcated final photo control point information, and sets up its ground coordinate of Instrument measuring
po(X, Y, H).
Industry reconnaissance module in described step 101, at least comprises the steps:
Step 201: data prepares, and sorts according to air strips to aviation image;
Step 202: according to photo control point reconnaissance principle in photogrammetric measurement field operation national standard, demarcates each alternative photo control point in the sheet reconnaissance program of choosing of self-service exploitation
ptgeneral area;
Step 203: demarcate each alternative photo control point in GoogleEarth
ptgeneral location terrestrial coordinate under deriving its WGS84 ellipsoid
pt(B, L, H);
Step 204: all alternative photo control point terrestrial coordinates are imported handhold GPS;
Step 205: assembling digital field thorn point device, connect connecting line ensure panel computer and hand-held set GPS communication normal;
Step 206: be base map with digital aerial imagery in panel computer, uses handhold GPS to navigate to outline scope;
Step 207: load corresponding correction in the thorn point program of the field of independent development after, aviation image is as base map, the simultaneously local terrestrial coordinate of real-time reception in read step 206
ph(B, L, H), according to what base map showed in real time
ph(B, L, H), select to arrive at
pt(B, L, H)best traffic route;
Step 208: arrive at
pt(B, L, H)scene, in the wild in thorn point program, Zoom in digital aerial imagery, behind selected accurately some position, determines and records three some position information: 1. demarcating and accurately put position on photo
pt(x, y); 2. description of station describes; 3. this site work photo is gathered;
Step 209: at accurate photo control point
ptcorresponding its ground coordinate of erected on site Instrument measuring
po(X, Y, H);
Step 210: by photo control point
ptground coordinate
po(X, Y, H)store as the 4th, the some position described in step 208 information;
Step 211: be used for aerotriangulation by industry in wireless network passback as control Measurement results.
In described step 202, choose sheet reconnaissance program and at least comprise the steps:
Step 301: according to image information and engineering attribute, sets up and surveys district's project file;
Step 302: the survey district project file described in read step 301, picks out 4 degree to 6 degree overlapping photos fast and automatically based on Image Matching technology;
Step 303: the reconnaissance principle related to according to the corresponding specification of photogrammetric measurement field operation, delineation covers the alternative photo control point general location surveying district automatically;
Step 304: the underproof alternative photo control point that manual intervention step 303 is automatically selected, determines final for stinging the alternative photo control point list of a field operation;
Step 305: the index file setting up alternative photo control point all photo overlapping with its more than 4;
Step 306: according to the index file described in step 305, derives alternative photo control point list and corresponding image.
In described step 205, digital field thorn point device at least comprises following assembly: digital field thorn point device is made up of panel computer, external hand held GPS receiver, data communication line three part.
Described step 207 field thorn point program, at least comprises the steps:
Step 401: read described step 301 Zhong Ce district project file;
Step 402: transfer index file in described step 305, alternative photo control point is selected in pointwise, arrives this photo control point general location on-the-spot, transfers each superimposed image;
Step 403: each photo of multiwindow linkage display in panel computer, final position determined by each window image of on-the-spot amplification;
Step 404: click after amplifying pixel, store photo control point in a database
ptpicpointed coordinate
pt(x, y);
Step 405: in the form of text some position, scene is described, text message write into Databasce;
Step 406: Taking Pictures recording is carried out, image information write into Databasce to an operation field for position instrument decorating position;
Step 407: complete described step 210;
Step 408: repeating said steps 402 to step 407;
Step 409: complete after surveying district's all pricking method points work, a bit data library information is exported as TXT form and JPG form.
Feature of the present invention is: l, reconnaissance system can reduce operator professional knowledge threshold, are convenient to Technique Popularizing; 2, digitized video Zoom in can improve thorn point precision, reduces rework rate; 3, utilize panel computer and handhold GPS technology to improve and look for point efficiency; 4, digital achievement preserve, transmit convenient and swift.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 digitizing thorn dot system structural drawing;
Fig. 2 chooses sheet reconnaissance program structure diagram;
Fig. 3 field thorn point program structure diagram;
Fig. 4 digital field thorn point device example photo.
Embodiment
The object of the invention is to be realized by following technical method, design a kind of aerophotogrammetric field work digitizing thorn point methods, as shown in Figure 1, at least comprise the steps:
Step 101: interior industry reconnaissance module: lay to cover and survey the alternative photo control point of district's sufficient amount, and digital aerial imagery and alternative photo control point rough coordinates are imported digital field thorn point device;
Step 102: field operation reconnaissance module: by digital field thorn point device, in the corresponding scene of all alternative photo control point that step 101 is selected, digital aerial imagery is demarcated final photo control point information, and sets up its ground coordinate of Instrument measuring
po(X, Y, H).
Industry reconnaissance module in described step 101, at least comprises the steps:
Step 201: data prepares, and sorts according to air strips to aviation image;
Step 202: according to photo control point reconnaissance principle in photogrammetric measurement field operation national standard, demarcates each alternative photo control point in the sheet reconnaissance program of choosing of self-service exploitation
ptgeneral area;
Step 203: demarcate each alternative photo control point in GoogleEarth
ptgeneral location terrestrial coordinate under deriving its WGS84 ellipsoid
pt(B, L, H);
Step 204: all alternative photo control point terrestrial coordinates are imported handhold GPS;
Step 205: assembling digital field thorn point device, connect connecting line ensure panel computer and hand-held set GPS communication normal.
Step 206: be base map with digital aerial imagery in panel computer, uses handhold GPS to navigate to outline scope (about 50 meters);
Step 207: load corresponding correction in the thorn point program of the field of independent development after, aviation image is as base map, the simultaneously local terrestrial coordinate of real-time reception in read step 206
ph(B, L, H), according to what base map showed in real time
ph(B, L, H), select to arrive at
pt(B, L, H)best traffic route;
Step 208: arrive at
pt(B, L, H)scene, in the wild in thorn point program, Zoom in digital aerial imagery, behind selected accurately some position, determines and records three some position information: 1. demarcating and accurately put position on photo
pt(x, y); 2. description of station describes; 3. this site work photo is gathered;
Step 209: at accurate photo control point
ptcorresponding its ground coordinate of erected on site Instrument measuring
po(X, Y, H);
Step 210: by photo control point
ptground coordinate
po(X, Y, H)store as the 4th, the some position described in step 208 information;
Step 211: be used for aerotriangulation by industry in wireless network passback as control Measurement results.
In described step 202, as shown in Figure 2, choose sheet reconnaissance program at least to comprise the steps:
Step 301: according to image information and engineering attribute, sets up and surveys district's project file;
Step 302: the survey district project file described in read step 301, picks out 4 degree to 6 degree overlapping photos fast and automatically based on Image Matching technology;
Step 303: the reconnaissance principle related to according to the corresponding specification of photogrammetric measurement field operation, delineation covers the alternative photo control point general location surveying district automatically;
Step 304: the underproof alternative photo control point that manual intervention step 303 is automatically selected, determines final for stinging the alternative photo control point list of a field operation;
Step 305: the index file setting up alternative photo control point all photo overlapping with its more than 4;
Step 306: according to the index file described in step 305, derives alternative photo control point list and corresponding image.
In described step 205, as shown in Fig. 4 example photo, digital field thorn point device at least comprises following assembly, it is characterized in that: digital field thorn point device is made up of panel computer, external hand held GPS receiver, data communication line three part.
Described step 207 field thorn point program, as shown in Figure 3, at least comprises the steps:
Step 401: read described step 301 Zhong Ce district project file;
Step 402: transfer index file in described step 305, alternative photo control point is selected in pointwise, arrives this photo control point general location on-the-spot, transfers each superimposed image (more than 4 degree);
Step 403: each photo of multiwindow linkage display in panel computer, final position determined by each window image of on-the-spot amplification;
Step 404: click after amplifying pixel, store photo control point in a database
ptpicpointed coordinate
pt(x, y);
Step 405: in the form of text some position, scene is described, text message write into Databasce;
Step 406: Taking Pictures recording is carried out, image information write into Databasce to an operation field for position instrument decorating position;
Step 407: complete described step 210;
Step 408: repeating said steps 402 to step 407;
Step 409: complete after surveying district's all pricking method points work, a bit data library information is exported as TXT form and JPG form.
What the present invention utilized independent development chooses sheet reconnaissance program, directly on digitized video, select alternative photo control point, alternative photo control point position real-time navigation is carried out by digital field thorn point device, utilize the field of independent development to sting some program at operation field and Zoom in is carried out to digital aerial imagery, accurately selected photo control point position, after this ground coordinate is measured at frame station, four information such as position picpointed coordinate, the on-the-spot text description in some position, site work photo, some position ground coordinate of putting store with database form and derive, and industry link in passback.This aerophotogrammetric field work digitizing thorn point methods, it can improve thorn point operating efficiency and precision, strengthens operation popularization and convenience.
The parts that the present embodiment does not describe in detail and technique belong to well-known components and the conventional means of the industry, do not describe one by one here.
Claims (4)
1. aerophotogrammetric field work digitizing thorn point methods, is characterized in that: at least comprise the steps:
Step 101: interior industry reconnaissance module: lay to cover and survey the alternative photo control point of district's sufficient amount, and digital aerial imagery and alternative photo control point rough coordinates are imported digital field thorn point device;
Step 102: field operation reconnaissance module: by digital field thorn point device, in the corresponding scene of all alternative photo control point that step 101 is selected, digital aerial imagery is demarcated final photo control point information, and sets up its ground coordinate of Instrument measuring Po(X, Y, H);
Industry reconnaissance module in described step 101, at least comprises the steps:
Step 201: data prepares, and sorts according to air strips to aviation image;
Step 202: according to photo control point reconnaissance principle in photogrammetric measurement field operation national standard, demarcates each alternative photo control point Pt general area in the sheet reconnaissance program of choosing of independent development;
Step 203: demarcate each alternative photo control point Pt general location and terrestrial coordinate Pt(B under deriving its WGS84 ellipsoid in GoogleEarth, L, H);
Step 204: all alternative photo control point terrestrial coordinates are imported handhold GPS;
Step 205: assembling digital field thorn point device, connect connecting line ensure panel computer and hand-held set GPS communication normal;
Step 206: be base map with digital aerial imagery in panel computer, uses handhold GPS to navigate to outline scope;
Step 207: load corresponding correction in the field of independent development thorn point program after, aviation image is as base map, the simultaneously local terrestrial coordinate Ph(B of real-time reception in read step 206, L, H), according to the Ph(B of display in real time on base map, L, H), Pt(B is arrived in selection, L, H) best traffic route;
Step 208: arrive at Pt(B, L, H) on-the-spot, in the wild in a thorn program, Zoom in digital aerial imagery, behind selected accurately some position, determines and records three some position information: 1. demarcating and accurately put position Pt(x, y on photo); 2. position text description is put; 3. this site work photo is gathered;
Step 209: at its ground coordinate of the corresponding erected on site Instrument measuring of accurate photo control point Pt Po(X, Y, H);
Step 210: by the ground coordinate Po(X of photo control point Pt, Y, H) store as the 4th, the some position described in step 208 information;
Step 211: be used for aerotriangulation by industry in wireless network passback as control Measurement results.
2. aerophotogrammetric field work digitizing thorn point methods according to claim 1, is characterized in that: in described step 202, chooses sheet reconnaissance program and at least comprise the steps:
Step 301: according to image information and engineering attribute, sets up and surveys district's project file;
Step 302: the survey district project file described in read step 301, picks out 4 degree to 6 degree overlapping photos fast and automatically based on Image Matching technology;
Step 303: the reconnaissance principle related to according to the corresponding specification of photogrammetric measurement field operation, delineation covers the alternative photo control point general location surveying district automatically;
Step 304: the underproof alternative photo control point that manual intervention step 303 is automatically selected, determines final for stinging the alternative photo control point list of a field operation;
Step 305: the index file setting up alternative photo control point all photo overlapping with its more than 4; Step 306: according to the index file described in step 305, derives alternative photo control point list and corresponding image.
3. aerophotogrammetric field work digitizing thorn point methods according to claim 1, it is characterized in that: in described step 205, digital field thorn point device at least comprises following assembly: digital field thorn point device is made up of panel computer, external hand held GPS receiver, data communication line three part.
4. aerophotogrammetric field work digitizing thorn point methods according to claim 2, is characterized in that: described step 207 field thorn point program, at least comprises the steps:
Step 401: read described step 301 Zhong Ce district project file;
Step 402: transfer index file in described step 305, alternative photo control point is selected in pointwise, arrives this photo control point general location on-the-spot, transfers each superimposed image;
Step 403: each photo of multiwindow linkage display in panel computer, final position determined by each window image of on-the-spot amplification;
Step 404: click after amplifying pixel, stores photo control point Pt picpointed coordinate Pt(x, y in a database);
Step 405: in the form of text some position, scene is described, text message write into Databasce; Step 406: Taking Pictures recording is carried out, image information write into Databasce to an operation field for position instrument decorating position;
Step 407: complete described step 210;
Step 408: repeating said steps 402 to step 407;
Step 409: complete after surveying district's all pricking method points work, a bit data library information is exported as TXT form and JPG form.
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| CN107806862B (en) * | 2017-10-26 | 2020-09-29 | 中煤航测遥感集团有限公司 | Aerial survey field measurement method and system |
| CN108596492B (en) * | 2018-04-25 | 2021-09-24 | 中国电建集团成都勘测设计研究院有限公司 | Urban and rural aerial survey management information system |
| CN112304294A (en) * | 2020-10-30 | 2021-02-02 | 杭州今奥信息科技股份有限公司 | Image control point distribution control and measurement method and system |
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| CN102538770A (en) * | 2012-01-17 | 2012-07-04 | 中国电力工程顾问集团中南电力设计院 | Low altitude photography image control point arranging method |
| CN103245331A (en) * | 2013-05-13 | 2013-08-14 | 重庆市勘测院 | Large-scale aerial survey indoor and outdoor integrated system and control method |
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2013
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102538770A (en) * | 2012-01-17 | 2012-07-04 | 中国电力工程顾问集团中南电力设计院 | Low altitude photography image control point arranging method |
| CN103245331A (en) * | 2013-05-13 | 2013-08-14 | 重庆市勘测院 | Large-scale aerial survey indoor and outdoor integrated system and control method |
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