Tilting camera and aircraftThere was a certain connection between the tilting camera and the aircraft. Tilting cameras could be mounted on aircraft such as drones.
As a type of aircraft, drones played an important role in the application of tilt photography technology. The drone was equipped with a tilting camera to capture ground targets from multiple angles and directions, so that it could collect image data for subsequent operations such as generating three-dimensional models. The characteristics of this technology included high efficiency (quickly collecting a large amount of image data), high accuracy (obtaining texture information from multiple angles), low cost, flexibility (able to reach complex or difficult to access areas), rich data (obtaining a variety of information), and strong expansibility (able to be combined with a variety of technologies).
The application of tilt photography cameras in the aviation field provided efficient and accurate solutions for many fields, such as close photosurveying, digital China construction, cultural relics protection, bridge inspection, etc. At the same time, in road construction, drones were equipped with tilt photography cameras to shoot, which could provide high-precision topography data in the road planning stage. The construction process was used to monitor the progress of the project, and it was helpful for maintenance management after completion.
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Introduction of the characters in "Tilting Umbrella"The characters included the male lead, Zhu You, and the female lead, Gu Xilou.
" Tilting Umbrella " by Wan Jin. It's a novel about the adventures of immortals and heroes. It's finished and you can enjoy it without worry.
She really didn't want to care about what happened hundreds of years later. She had already tasted the consequences of the trouble back then and was heartbroken. However, even though she had promised to take revenge, she still couldn't help but save them.
The Demon Lord of the Demon World said that back then, back then, it was not wrong! However, so what if she regretted it? When she saw the person she had been looking for so many years, he still shot her dead.
There were many infatuated people in the world, and many unfaithful people in the world.
Whatever happened after that, no matter how many times he called her name, it was nothing compared to the words " Xiao Bai " that came from the other side of his lips.
Young Master Xiang said," Those who have passed away and those who are left behind are always inferior. I regret meeting you too late. If only I had experienced those things with you!" However, being late did not mean that he was late. As long as it's you and you're here, it's good!
There were many regrets in the world, but there were many beautiful things in the world.
…….
I hope you will like this book.
Tilting camera with seven lensesThe seven lenses of the tilt camera were of great significance in airborne image acquisition. For example, there was an airborne seven-lens multi-angle long-focal length combination tilt photosurveying equipment. The equipment box was mounted on the aircraft, and the acquisition cameras on the equipment box included an orthophoto camera and several tilt cameras. The orthophoto camera is positioned in the middle of the equipment box and is arranged vertically to the equipment box, and a number of tilt cameras are arranged along the orthophoto camera, where the tilt cameras include a center camera and a side camera. The center camera and the equipment box are arranged in a tilted manner and have a first tilt angle, and the side cameras and the equipment box are arranged in a tilted manner and have a second tilt angle. Moreover, the orthophoto camera, the center camera, and the side cameras are respectively provided with different field of view angles. The flight control system includes a processor, an illumination module, a trajectory module, and an imaging module. When the processor sends out an acquisition signal, it controls the relevant units to make each camera carry out camera acquisition according to a predetermined state. Such a seven-lens setting helped to obtain image information from different angles of the ground object during aerial photogrammetry. Compared with some traditional airborne image acquisition methods, it could reduce the flight range of the aircraft, improve the image resolution, and the quality of the model. It played an important role in the application of 3D reality modeling technology (such as surveying, geographical information system, teaching display, urban planning, building construction, game production, smart city, digital archive protection of ancient cultural relics, etc.).
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Using a single camera to make a tilting photography modelA single camera can be used for oblique photography model construction. In small-scale 3D modeling projects, the single-camera tilting photography solution had certain advantages over the traditional five-lens or two lenses tilting photography system, such as cost, load, flight control, and so on.
The single-lens tilt photography system could adopt the "well" shaped flight operation method. The lens could be pointed at an angle, and the data could be collected by dense flight routes and "well" shaped cross-flight, so as to quickly and effectively obtain the image and texture characteristics of the ground objects. Then, with the help of data processing software, the three-dimensional modeling could be quickly realized.
For example, when constructing a real-life three-dimensional model of a test area in Huaxi District, Guiyang City, a multi-wing drone equipped with a single-lens camera was used, and the drone butler software was used to set the flight aerial camera control parameters. Based on the Smart3D Capture software multi-view vision algorithm (PM VS) and motion structure recovery algorithm (CHF), a real-life three-dimensional model that met the requirements of large-scale aerial photogrammetery was constructed. It showed low cost and high efficiency in the fields of real estate surveying, cadastral surveying, model display, etc. The advantage of high precision.
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Djiang Zhitu Tilting photography running map tutorialThe following are the basic steps of Djang-Zitu's tilting photography:
** 1. Basic Setting **
1. ** Flight Route View **
- You can click on the numbers 1 - 5 on the map interface to view the various routes. 1 represents the downward route, and 2 - 5 represent the inclined routes in four different directions.
2. ** Real-time 2D (related to aerial photography missions but can be used as a reference)**
- If it was turned on, the aircraft would process the photos taken in real time and display the map construction results on the map during the mission, but the accuracy was low. After the mission was over, the original photos could be imported into the Dajiang Intelligent Map for high-precision construction. If it was turned off, there would be no real-time map construction results.
3. ** Real-time 3D **
- This was a paid function that required the purchase and activation of a license. When it was turned on, the aircraft would process the photos in real time during the mission and display the 3D point cloud result on the map. After the mission was over, the original image could be imported for higher-precision 3D model reconstruction. The default real-time 3D result was point cloud + model, and the model option could also be unchecked. If it was turned off, there would be no real-time 3D point cloud/model result.
4. ** Complete the action **
- [Hover: Hover at the final waypoint after the mission is completed for subsequent flight control.]
- [Automatic return: When the flight altitude is higher than the set return altitude during the mission, the flight will automatically return to the current flight altitude after the mission is completed. If the flight altitude is lower than the set return altitude, the flight will first rise to the set return altitude and then return to the return point after the mission is completed. The return altitude can be set in the flight control.]
- [Landing on the spot: After the mission is completed, it will automatically descend to the ground at the final waypoint and turn off the motor.]
5. **GSD (ground sample distance)**
- It was automatically calculated by the Djiang Map based on the flight altitude and the camera model. The value was the actual ground distance represented by each pel in the original image collected.
6. ** Mission height **
- It was the height of the aircraft relative to the scene it was shooting when it was performing a mission.
7. ** Flying Speed **
- Including the flight speed (downward) corresponding to the speed on the downward route, the flight speed (inclined) corresponding to the speed on the inclined route, the automatic flight speed when the aircraft performs the mission, and the flight speed when the aircraft flies outside the route (such as starting to the starting point of the route or returning after the mission is completed), it is 13m/s and cannot be changed. He could also click on the settings button to set the flight speed to the maximum flight speed that Djang-Zitu calculated based on the flight altitude, camera model, and the parameters in the advanced settings to meet the requirements of taking photos.
8. ** Choose flight route (Oblique photography mission)**
- From the five flight routes, select the route that needed to be executed. The route that was not selected would not be executed.
** 2. Advanced Setting **
1. ** Side Overlap Rate/Side Overlap Rate (Tilted)**
- The overlap rate between photos of two adjacent main flight routes can be set to 10% - 90%. In the oblique photography task, the side overlap rate corresponds to the overlap rate on the downward flight route, and the side overlap rate (oblique) corresponds to the overlap rate on the oblique flight route.
2. ** Heading overlap rate/Heading overlap rate (inclined)**
- The overlap rate between two adjacent photos on each main route can be set to 10% - 90%. In the oblique photography task, the course overlap rate corresponds to the overlap rate on the downward looking route, and the course overlap rate (oblique) corresponds to the overlap rate on the oblique route.
3. ** Main flight route angle **
- The direction in which the main route is generated is 0° from the north and positive from the clockwise direction. The range can be set to 1° - 360°.
4. ** Margins **
- For the mission area that has been set, you can further limit the flight area of the aircraft by widening (positive value) or shrinking (negative value) the margin. The default value of the margin is 25% of the mission height, and the range can be set from-30% to +30% of the mission height.
** 3. The camera settings (Part of it is related to tilting photography)**
1. ** Model of the camera **
- The software could automatically identify the camera model of the aircraft, and there was usually no need to set it up.
2. ** Picture Scale **
- It is recommended to use 4:3 for filming.
3. ** White Balance **
- The default value is farmland, which can be set according to the specific scene.
4. ** Exposing Mode **
- Automatic or Shutter priority. If the shutter priority is selected, you can choose sunny, cloudy, low-light, or custom in the "exposure scene". If custom, you can adjust the shutter, IQ, and exposure compensation.
5. ** Distortion correction (if Phantom 4 is used)**
- It is turned off by default. If it is turned on, it can automatically correct the photo distortion, but the quality of the photo may be lower than when it is not turned on. If you need to use the original film post-processing, it is recommended to turn it off.
6. ** Tilting angle of the pan head (only applicable to tilting photography tasks)**
- The pitch angle of the cloud platform when flying on an inclined route, ranging from-85 ° to-40 °.
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