CN111768501A - Oblique photography modeling method based on group cooperation - Google Patents
Oblique photography modeling method based on group cooperation Download PDFInfo
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Abstract
The invention relates to the field of three-dimensional modeling, in particular to a group cooperation-based oblique photography modeling method; configuring a plurality of computers and accessing all the computers into the same local area network; putting the engineering file of the three-dimensional modeling software into a data storage disk shared by the computer; when the modeling software runs, a plurality of computers read and write the disk data at the same position at the same time, so that the purpose of producing the three-dimensional live-action model is realized under the logic parallel computing group cooperation mode. Compared with the traditional single-machine modeling mode, the collaborative modeling method of the computer group provided by the invention has the advantages that the group collaborative modeling mode based on logic can finish multiple times of model operation in the same time, and the model production speed is greatly improved.
Description
Technical Field
The invention relates to the field of three-dimensional modeling, in particular to a group cooperation-based oblique photography modeling method.
Background
The oblique photography technology is a new emerging technology in the field of international mapping remote sensing. The method integrates the traditional aerial photography and close-range measurement technology, overcomes the limitation that the original orthoimage can be shot only from a vertical angle, and is applied to the fields of smart city management, emergency command, geological control, constructional engineering aerial survey and the like. However, as the application engineering range is becoming larger and larger, the data volume of oblique photography also increases in a geometric test, and the generation work of a large volume of three-dimensional real-scene models causes great burden on equipment investment and manpower occupation.
Disclosure of Invention
The invention aims to provide an efficient three-dimensional live-action model group collaborative modeling method, which can shorten the model processing time to a greater extent and improve the modeling efficiency on the premise of not influencing the model precision.
In order to achieve the above object, the present invention is realized by:
a oblique photography modeling method based on group cooperation comprises the steps that a plurality of computers are configured and all connected into the same local area network; putting the engineering file of the three-dimensional modeling software into a data storage disk shared by the computer; when the modeling software runs, a plurality of computers read and write the disk data at the same position at the same time, so that the purpose of producing the three-dimensional live-action model is realized under the logic parallel computing group cooperation mode.
The collaborative modeling method provided by the invention has the following advantages:
1. compared with the traditional single machine modeling mode, the group collaborative modeling mode based on the logic can complete multiple times of model operation in the same time, thereby greatly improving the production speed of the model;
2. the logic-based group collaborative modeling mode ensures the maximum optimization of the computing speed of each computing node, and effectively improves the production accuracy of the three-dimensional live-action model;
3. the research and development of the computer group cooperation technology provides a solution for the problem of lack of computing resources in the process of oblique photography three-dimensional real-scene automatic modeling, and really meets the ever-increasing processing requirement of mass oblique photography data.
Drawings
Fig. 1 is a schematic diagram of the steps of the collaborative modeling method according to the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1, a group coordination-based oblique photography modeling method,
step 1: arranging two or more computers as equipment required by group collaborative modeling;
step 2: all computers are accessed into the same local area network, one computer is selected as a host, and the rest computers are selected as auxiliary computers;
and step 3: selecting a disk under a host as a fixed write path disk of a three-dimensional modeling software engineering file;
and 4, step 4: sharing the disk and mapping the disk to a network driver, wherein other auxiliary machines can normally open the disk;
and 5: establishing an engineering folder in a shared disk under a host network folder, wherein the folder is divided into source file storage, working path storage, auxiliary data storage and main engineering file storage;
step 6: opening a three-dimensional modeling software running module of a host, and setting a UNC (Universal Naming Convention) path as a main project file storage under a shared disk; setting a task sequence directory as a working path storage folder under a shared disk;
and 7: opening a three-dimensional modeling software setting module of the host, and setting a task sequence directory as a working path storage folder under an original disk of the shared disk;
and 8: opening a three-dimensional modeling software setting module of the auxiliary machine, and setting a task sequence directory as a working path storage folder under a shared disk;
and step 9: opening three-dimensional modeling software operation engines of the main machine and all the auxiliary machines to keep the three-dimensional modeling software operation engines in a to-be-operated state;
step 10: renaming each lens image and POS (position coordinate) information according to the shooting acquisition sequence to ensure that the POS (position coordinate) information corresponds to and is consistent with the image name;
step 11: correctly importing each lens image and corresponding POS (position coordinate) information into a three-dimensional modeling software operation module of a host computer in sequence, selecting a corresponding space coordinate system, and checking whether each viewpoint in a 3D view is flat or not;
step 12: after checking, opening a three-dimensional modeling software operation engine to submit aerial triangular measurement calculation;
step 13: checking whether the number of operation engine ends in the host monitoring task sequence is equal to the total number of computers when the host runs, and checking whether the operation engine ends of the three-dimensional modeling software of the other auxiliary machines run normally;
step 14: after the aerial triangulation calculation is finished, checking whether DSM (three-dimensional earth surface model) data is complete, checking the number of lost photos of an information panel, if the lost photos are excessive, deleting the aerial triangulation block, resetting parameters and submitting the aerial triangulation calculation again;
step 15: after obtaining complete aerial triangulation data, reconstructing a new task, importing a corresponding KML (Keyholemarkup Language) file for region range segmentation, reserving a region required by a project, adjusting corresponding parameters, and submitting a model production task;
step 16: repeating step 13;
and step 17: after the model is produced, checking whether the model has a missing phenomenon, if the model has excessive missing, supplementing corresponding image data to produce the model again until the model is produced completely;
step 18: at this time, all the engine ends simultaneously operate, the modeling efficiency is n times of that of single-computer operation, and n is the total number of the group cooperative computers);
step 19: and (5) after the software is operated, checking the final three-dimensional live-action model.
Claims (2)
1. A group cooperation-based oblique photography modeling method is characterized in that: configuring a plurality of computers and accessing all the computers into the same local area network; putting the engineering file of the three-dimensional modeling software into a data storage disk shared by the computer; when the modeling software runs, a plurality of computers read and write the disk data at the same position at the same time, so that the purpose of producing the three-dimensional live-action model is realized under the logic parallel computing group cooperation mode.
2. The group-synergy-based oblique photography modeling method of claim 1, wherein:
step 1: arranging two or more computers as equipment required by group collaborative modeling;
step 2: all computers are accessed into the same local area network, one computer is selected as a host, and the rest computers are selected as auxiliary computers;
and step 3: selecting a disk under a host as a fixed write path disk of a three-dimensional modeling software engineering file;
and 4, step 4: sharing the disk and mapping the disk to a network driver, wherein other auxiliary machines can normally open the disk;
and 5: establishing an engineering folder in a shared disk under a host network folder, wherein the folder is divided into source file storage, working path storage, auxiliary data storage and main engineering file storage;
step 6: opening a three-dimensional modeling software operation module of the host, and setting the UNC path as a main project file storage under a shared disk; setting a task sequence directory as a working path storage folder under a shared disk;
and 7: opening a three-dimensional modeling software setting module of the host, and setting a task sequence directory as a working path storage folder under an original disk of the shared disk;
and 8: opening a three-dimensional modeling software setting module of the auxiliary machine, and setting a task sequence directory as a working path storage folder under a shared disk;
and step 9: opening three-dimensional modeling software operation engines of the main machine and all the auxiliary machines to keep the three-dimensional modeling software operation engines in a to-be-operated state;
step 10: renaming the images of all the lenses and the POS information according to the shooting acquisition sequence to ensure that the POS information is corresponding to and consistent with the image names;
step 11: correctly importing each lens image and the corresponding POS information into a three-dimensional modeling software operation module of a host computer in sequence, selecting a corresponding space coordinate system, and checking whether each viewpoint in a 3D view is flat or not;
step 12: after checking, opening a three-dimensional modeling software operation engine to submit aerial triangular measurement calculation;
step 13: checking whether the number of operation engine ends in the host monitoring task sequence is equal to the total number of computers when the host runs, and checking whether the operation engine ends of the three-dimensional modeling software of the other auxiliary machines run normally;
step 14: after the aerial triangulation calculation is finished, checking whether DSM (three-dimensional earth surface model) data is complete, checking the number of lost photos of an information panel, if the lost photos are excessive, deleting the aerial triangulation block, resetting parameters and submitting the aerial triangulation calculation again;
step 15: after obtaining complete aerial triangulation data, reconstructing a new task, importing a corresponding KML file for region range segmentation, reserving a region required by a project, adjusting corresponding parameters, and submitting a model production task;
step 16: repeating step 13;
and step 17: after the model is produced, checking whether the model has a missing phenomenon, if the model has excessive missing, supplementing corresponding image data to produce the model again until the model is produced completely;
step 18: and checking the final three-dimensional live-action model after the software is operated.
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Citations (4)
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US6848109B1 (en) * | 1996-09-30 | 2005-01-25 | Kuehn Eva | Coordination system |
CN109102563A (en) * | 2018-08-13 | 2018-12-28 | 宋强 | A kind of outdoor scene three-dimensional modeling method |
CN109741443A (en) * | 2019-01-09 | 2019-05-10 | 天津市德艺文创科技发展有限公司 | A kind of 3D photographed data generation method |
CN110555906A (en) * | 2019-07-16 | 2019-12-10 | 宝略科技(浙江)有限公司 | data processing method for oblique photography three-dimensional live-action modeling process |
-
2020
- 2020-06-29 CN CN202010605612.9A patent/CN111768501A/en active Pending
Patent Citations (4)
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US6848109B1 (en) * | 1996-09-30 | 2005-01-25 | Kuehn Eva | Coordination system |
CN109102563A (en) * | 2018-08-13 | 2018-12-28 | 宋强 | A kind of outdoor scene three-dimensional modeling method |
CN109741443A (en) * | 2019-01-09 | 2019-05-10 | 天津市德艺文创科技发展有限公司 | A kind of 3D photographed data generation method |
CN110555906A (en) * | 2019-07-16 | 2019-12-10 | 宝略科技(浙江)有限公司 | data processing method for oblique photography three-dimensional live-action modeling process |
Non-Patent Citations (4)
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何雁如等: "集群技术下的实景三维建模", 《测绘通报》 * |
宋媛媛: "基于Smart3D三维模型的大比例尺地形图测绘精度分析", 《测绘与空间地理信息》 * |
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