CN110610633A - Photogrammetry and remote sensing comprehensive teaching system - Google Patents
Photogrammetry and remote sensing comprehensive teaching system Download PDFInfo
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- CN110610633A CN110610633A CN201910610452.4A CN201910610452A CN110610633A CN 110610633 A CN110610633 A CN 110610633A CN 201910610452 A CN201910610452 A CN 201910610452A CN 110610633 A CN110610633 A CN 110610633A
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
Abstract
The invention discloses a photogrammetry and remote sensing comprehensive teaching system. The comprehensive teaching system for photogrammetry and remote sensing can enable students to master the basic principle of photogrammetry, single aerial photography film analysis, double image analysis photogrammetry and production of 4D products; the method comprises the steps of mastering basic knowledge of remote sensing, mapping principle of remote sensing images, geometric processing and image interpretation, carrying out analytic aerial triangulation, utilizing a full-digital photogrammetry workstation to carry out three-dimensional mapping (DLG) production, carrying out production of a digital ground elevation model (DEM), carrying out production of a Digital Orthophoto Map (DOM), carrying out production of a digital raster map (DRG), and bringing better use prospect, wherein the capacity of operating instruments, the capacity of collecting data, the capacity of quality inspection, the capacity of transferring and drawing photos for field work and the capacity of organizing and summarizing results, cooperation consciousness, team spirit, optimistic life attitude, active work, hardiness and fatigue.
Description
Technical Field
The invention relates to the technical field of photogrammetry and remote sensing, in particular to a photogrammetry and remote sensing comprehensive teaching system.
Background
The photogrammetry and remote sensing comprehensive teaching system is used for teaching students to know the definition, task and development of photogrammetry and remote sensing and scientifically form and connote image information; mastering the basic principle of photogrammetry, analyzing a single aerial photograph, analyzing double images, photogrammetry and producing a 4D product; the comprehensive teaching system has the advantages that basic knowledge of remote sensing, mapping principle of remote sensing images, geometric processing and image interpretation methods are mastered, aerial triangulation can be analyzed, a full-digital photogrammetry workstation is utilized to produce stereoscopic mapping (DLG), a digital ground elevation model (DEM), a Digital Orthophoto Map (DOM) and a digital raster map (DRG) are produced, dynamic basic information and scientific decision basis are provided for national economic construction and social sustainable development, and therefore, the comprehensive teaching system for photogrammetry and remote sensing is provided.
Disclosure of Invention
The invention mainly aims to provide a photogrammetry and remote sensing comprehensive teaching system which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a photogrammetry and remote sensing comprehensive teaching system comprises image data collection and preprocessing, image interpretation and outdoor picture painting, area network division and picture control measurement, analytic aerial triangulation, a digital ground elevation model with a 1:1 ten thousand scale, a digital orthophoto map with a 1:1 ten thousand scale, a digital line drawing map with a 1:2000 scale and a digital grid drawing map with a 1:2000 scale.
Preferably, the method comprises the following steps:
(S1) the image data collection and preprocessing includes basic knowledge of photogrammetry and remote sensing; common coordinate system and central projection are used for photogrammetry; single aerial photography film analysis and double image analysis photogrammetry; the method comprises the steps of collecting and analyzing existing aerospace data and image data of a measuring area, carrying out on-site exploration, compiling a photogrammetric technology design book, and carrying out image enhancement, reduction processing, dodging processing, image rotation and other preprocessing on the image data.
(S2) the image interpretation and the outdoor photo painting comprise photo interpretation characteristics and interpretation methods; basic knowledge and a painting method of photo painting; and adjusting the finishing and edge jointing of the picture.
(S3) the area network partition and photo control measurement comprises dividing the area network according to the image forming accuracy requirement by using the image data; arranging image control points and selecting thorns; carrying out field actual measurement on the plane coordinates and the elevations of the control points; and (5) arrangement and submission of results.
(S4) the resolving aerial triangulation comprises collecting and analyzing control measurement results and aerial data according to technical design requirements; rotating thorns of field image control points and observing point selection of interior encryption points; a relative orientation; resolving the aerial triangulation adjustment calculation; connecting edges of the area network; resolving the quality check of the aerial triangulation; and (5) arrangement and submission of results.
(S5) the digital ground elevation model with the 1:1 ten thousand scale comprises the steps of collecting and preparing original photos and analyzing the aerial triangulation results and other data according to the technical design requirements; performing directional modeling on the image; extracting feature points and feature lines; constructing an irregular triangular net interpolation DEM, editing DEM data, connecting edges of the DEM data, and inlaying and cutting the DEM data; quality inspection of digital ground elevation model production; and (5) arrangement and submission of results.
(S6) the digital orthophoto map with the 1:1 ten thousand scale comprises a collection preparation original photo, a control point result, a DEM result and a technical design book; carrying out light homogenizing treatment and color homogenizing treatment on the image; DEM collection, image fusion, image embedding and picture cutting; quality inspection of digital orthophoto map production; and (5) arrangement and submission of results.
(S7) the 1: 2000-scale digraph includes collecting field measurement data, aerial photographs, high resolution satellite images, topographic map data according to a technical design book; conducting wire field observation work; carrying out data acquisition and attribute data entry on the image pair orientation according to design and specification requirements; editing and connecting edges of the graphic data and the attribute data; quality check of the digraph production; and (5) arrangement and submission of results.
(S8) the 1: 2000-scale digital raster image map includes collecting ready-to-use original photographs according to technical design requirements; converting the data format of the digital navigation film and compressing the data volume; selecting a DRG control point, performing block correction on the DRG, adjusting the chromaticity, and finishing the outline of the graph; quality inspection of digital grid image production; and (5) arrangement and submission of results.
Compared with the prior art, the invention has the following beneficial effects: the comprehensive teaching system for photogrammetry and remote sensing can enable students to master the basic principle of photogrammetry, single aerial photograph analysis, double image analysis photogrammetry and production of 4D products; the method can be used for analyzing aerial triangulation, utilizing a full-digital photogrammetry workstation to produce stereoscopic mapping (DLG), a digital ground elevation model (DEM), a Digital Orthophoto Map (DOM) and a digital raster map (DRG), and has the advantages of capability of operating instruments, capability of collecting data, quality inspection capability, capability of transferring and drawing pictures and result arrangement and summarization capability, cooperation consciousness, team spirit, optimistic life attitude, active work, hardiness, truth and running spirit, and better using effect compared with the traditional mode.
Drawings
Fig. 1 is a general program diagram of a photogrammetry and remote sensing comprehensive teaching system of the invention.
FIG. 2 is a flowchart of a procedure of image data collection and preprocessing 1 in a photogrammetry and remote sensing integrated teaching system according to the present invention.
Fig. 3 is a program diagram of image interpretation and field photo painting 2 in the photogrammetry and remote sensing comprehensive teaching system of the invention.
Fig. 4 is a program diagram of area network division and photo control measurement 3 in the photogrammetry and remote sensing integrated teaching system.
FIG. 5 is a program diagram for analyzing aerial triangulation 4 in the photogrammetry and remote sensing comprehensive teaching system of the invention.
FIG. 6 is a program diagram of a digital ground elevation model 5 with a scale of 1:1 ten thousand in the photogrammetry and remote sensing integrated teaching system of the invention.
FIG. 7 is a program diagram of a 1:1 ten thousand scale digital orthophoto map 6 in a photogrammetry and remote sensing integrated teaching system of the present invention.
FIG. 8 is a program diagram of a 1:2000 scale digital line drawing FIG. 7 in the integrated teaching system of photogrammetry and remote sensing of the present invention.
FIG. 9 is a program diagram of a 1:2000 scale digital grid image 8 in a photogrammetry and remote sensing integrated teaching system of the present invention.
In the figure: 1. collecting and preprocessing image data; 2. image interpretation and outdoor photo painting; 3. dividing a regional network and controlling and measuring photos; 4. analyzing aerial triangulation; 5. 1:1 ten thousand scale digital ground elevation model; 6. 1:1 ten thousand scale digital orthophoto map; 7. 1:2000 scale of the digitline drawing; 8. digital grid image map at 1:2000 scale.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
It should be understood that the specific embodiments described herein are merely illustrative of the present patent and are not limiting upon the present patent.
As shown in fig. 1-9, a photogrammetry and remote sensing comprehensive teaching system comprises image data collection and preprocessing 1, image interpretation and outdoor photo painting 2, area network division and photo control measurement 3, analytic aerial triangulation 4, a digital ground elevation model 5 with a 1:1 ten thousand scale, a digital orthophoto map 6 with a 1:1 ten thousand scale, a digital line drawing 7 with a 1:2000 scale and a digital raster image 8 with a 1:2000 scale.
The method comprises the following steps:
(S1) image data collection and preprocessing 1 including basic knowledge of photogrammetry and remote sensing; common coordinate system and central projection are used for photogrammetry; single aerial photography film analysis and double image analysis photogrammetry; the method comprises the steps of collecting and analyzing existing aerospace data and image data of a measuring area, carrying out on-site exploration, compiling a photogrammetric technology design book, and carrying out image enhancement, reduction processing, dodging processing, image rotation and other preprocessing on the image data.
(S2) image interpretation and outdoor photo painting 2 including photo interpretation characteristics and interpretation method; basic knowledge and a painting method of photo painting; and adjusting the finishing and edge jointing of the picture.
(S3) the area network division and photo control measurement 3 comprises dividing the area network by using the image data according to the requirement of the imaging accuracy; arranging image control points and selecting thorns; carrying out field actual measurement on the plane coordinates and the elevations of the control points; and (5) arrangement and submission of results.
(S4) analyzing the aerial triangulation 4 comprises collecting and analyzing control measurement results and aerial data according to technical design requirements; rotating thorns of field image control points and observing point selection of interior encryption points; a relative orientation; resolving the aerial triangulation adjustment calculation; connecting edges of the area network; resolving the quality check of the aerial triangulation; and (5) arrangement and submission of results.
(S5) the digital ground elevation model 5 with 1:1 ten thousand scale comprises collecting and preparing original photos and analyzing the aerial triangulation result and other data according to the technical design requirements; performing directional modeling on the image; extracting feature points and feature lines; constructing an irregular triangular net interpolation DEM, editing DEM data, connecting edges of the DEM data, and inlaying and cutting the DEM data; quality inspection of digital ground elevation model production; and (5) arrangement and submission of results.
(S6)1:1 ten thousand scale digital orthophoto map 6 includes collecting and preparing original photo, control point result, DEM result, technical design book; carrying out light homogenizing treatment and color homogenizing treatment on the image; DEM collection, image fusion, image embedding and picture cutting; quality inspection of digital orthophoto map production; and (5) arrangement and submission of results.
(S7)1:2000 scale digital line drawing 7 includes collecting field survey data, aerial photographs, high resolution satellite images, topographical data according to a technical design book; conducting wire field observation work; carrying out data acquisition and attribute data entry on the image pair orientation according to design and specification requirements; editing and connecting edges of the graphic data and the attribute data; quality check of the digraph production; and (5) arrangement and submission of results.
(S8)1:2000 scale digital raster image map 8 includes collecting ready original photographs according to technical design requirements; converting the data format of the digital navigation film and compressing the data volume; selecting a DRG control point, performing block correction on the DRG, adjusting the chromaticity, and finishing the outline of the graph; quality inspection of digital grid image production; and (5) arrangement and submission of results.
The system comprises an image data collection and pretreatment 1, an image interpretation and outdoor photo painting 2, an area network division and photo control measurement 3, an analytic aerial triangulation 4, a digital ground elevation model (DEM)5 with a 1:1 ten thousand scale, a Digital Orthophoto Map (DOM)6 with a 1:1 ten thousand scale, a digital line Drawing (DLG)7 with a 1:2000 scale and a digital raster image (DRG)8 with a 1:2000 scale, wherein the image data collection and pretreatment 1 comprises basic knowledge of photogrammetry and remote sensing; common coordinate system and central projection are used for photogrammetry; single aerial photography film analysis and double image analysis photogrammetry; collecting and analyzing the existing aerospace data and image data in a measuring area, carrying out on-site reconnaissance, compiling a photogrammetry technical design book, and carrying out image enhancement, reduction processing, dodging processing, image rotation and other preprocessing on the image data; the image interpretation and field photo painting 2 comprises photo interpretation characteristics and interpretation methods; basic knowledge and a painting method of photo painting; adjusting the finishing and edge jointing of the picture; the area network division and photo control measurement 3 comprises the steps of dividing the area network by utilizing image data according to the requirement of imaging precision; arranging image control points and selecting thorns; carrying out field actual measurement on the plane coordinates and the elevations of the control points; sorting and submitting achievements; analyzing the aerial triangulation 4 comprises collecting and analyzing control measurement results and aerial data according to technical design requirements; rotating thorns of field image control points and observing point selection of interior encryption points; a relative orientation; resolving the aerial triangulation adjustment calculation; connecting edges of the area network; resolving the quality check of the aerial triangulation; sorting and submitting achievements; the digital ground elevation model 5 with 1:1 ten thousand scale comprises collecting and preparing original pictures according to the technical design requirements, and analyzing the data of aerial triangulation results and the like; performing directional modeling on the image; extracting feature points and feature lines; constructing an irregular triangular net interpolation DEM, editing DEM data, connecting edges of the DEM data, and inlaying and cutting the DEM data; quality inspection of digital ground elevation model production; sorting and submitting achievements; the digital orthophoto map 6 with 1:1 ten thousand scale comprises collecting and preparing original photos, control point results, DEM results and technical design books; carrying out light homogenizing treatment and color homogenizing treatment on the image; DEM collection, image fusion, image embedding and picture cutting; quality inspection of digital orthophoto map production; sorting and submitting achievements; 1:2000 scale of the digital line drawing 7 includes collecting field survey data, aerial photographs, high resolution satellite images, topographic map data according to the technical design book; conducting wire field observation work; carrying out data acquisition and attribute data entry on the image pair orientation according to design and specification requirements; editing and connecting edges of the graphic data and the attribute data; quality check of the digraph production; sorting and submitting achievements; the digital grid image figure 8 with a 1:2000 scale comprises collecting and preparing original photos according to technical design requirements; converting the data format of the digital navigation film and compressing the data volume; selecting a DRG control point, performing block correction on the DRG, adjusting the chromaticity, and finishing the outline of the graph; quality inspection of digital grid image production; sorting and submitting achievements; the method can enable students to master the basic principle of photogrammetry, single aerial photograph analysis, double image analysis photogrammetry and production of 4D products; the method can be used for analyzing aerial triangulation, utilizing a full-digital photogrammetry workstation to produce stereoscopic mapping (DLG), a digital ground elevation model (DEM), a Digital Orthophoto Map (DOM) and a digital raster map (DRG), and has the advantages of capability of operating instruments, capability of collecting data, quality inspection capability, capability of transferring and drawing pictures and capability of organizing and summarizing results, and practical working spirit of cooperation consciousness, team spirit, optimistic life attitude, active working, hardiness, truth and practicality and running once.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A photogrammetry and remote sensing comprehensive teaching system comprises image data collection and preprocessing (1), image interpretation and outdoor photo painting (2), area network division and photo control measurement (3), analysis air triangulation (4), a digital ground elevation model (5) with a 1:1 ten thousand scale, a digital orthophoto map (6) with a 1:1 ten thousand scale, a digital line drawing (7) with a 1:2000 scale and a digital raster image (8) with a 1:2000 scale.
2. The integrated photogrammetry and remote sensing teaching system of claim 1, comprising the steps of:
(S1) the image data collection and preprocessing (1) including basic knowledge of photogrammetry and remote sensing; common coordinate system and central projection are used for photogrammetry; single aerial photography film analysis and double image analysis photogrammetry; collecting and analyzing the existing aerospace data and image data of a measuring area, carrying out on-site reconnaissance, and compiling a photogrammetric technology design book; the image data is pre-processed by image enhancement, image reduction, light uniformization, image rotation, etc.
(S2) the image interpretation and the field photo painting (2) comprise photo interpretation characteristics and interpretation methods; basic knowledge and a painting method of photo painting; and adjusting the finishing and edge jointing of the picture.
(S3) the area network division and photo control measurement (3) includes dividing the area network by using the image data according to the requirement of the imaging accuracy; arranging image control points and selecting thorns; carrying out field actual measurement on the plane coordinates and the elevations of the control points; and (5) arrangement and submission of results.
(S4) the analytical aerial triangulation (4): collecting and analyzing control measurement results and aerial data according to technical design requirements; rotating thorns of field image control points and observing point selection of interior encryption points; a relative orientation; resolving the aerial triangulation adjustment calculation; connecting edges of the area network; resolving the quality check of the aerial triangulation; and (5) arrangement and submission of results.
(S5) the digital ground elevation model (5) with the 1:1 ten thousand scale comprises the steps of collecting and preparing original photos according to technical design requirements, and analyzing the data such as aerial triangulation results; performing directional modeling on the image; extracting feature points and feature lines; constructing an irregular triangular net interpolation DEM, editing DEM data, connecting edges of the DEM data, and inlaying and cutting the DEM data; quality inspection of digital ground elevation model production; and (5) arrangement and submission of results.
(S6) the 1:1 ten thousand scale digital orthophoto map (6) comprises collecting and preparing original photos, control point results, DEM results and technical design books; carrying out light homogenizing treatment and color homogenizing treatment on the image; DEM collection, image fusion, image embedding and picture cutting; quality inspection of digital orthophoto map production; and (5) arrangement and submission of results.
(S7) the 1: 2000-scale digraph (7) includes collecting field survey data, aerial photographs, high resolution satellite images, topographical data, according to a technical design book; conducting wire field observation work; carrying out data acquisition and attribute data entry on the image pair orientation according to design and specification requirements; editing and connecting edges of the graphic data and the attribute data; quality check of the digraph production; and (5) arrangement and submission of results.
(S8) the 1:2000 scale digital raster image map (8) includes collecting ready original photographs according to technical design requirements; converting the data format of the digital navigation film and compressing the data volume; selecting a DRG control point, performing block correction on the DRG, adjusting the chromaticity, and finishing the outline of the graph; quality inspection of digital grid image production; and (5) arrangement and submission of results.
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