Upload Drone Files
Drone Files
Upload the following required files: DJI drone video, CSV file, SRT file All files must be uploaded to proceed to the next page.
File Upload Policy
Maximum File Sizes:
Videos: Up to 5GB
Images: Up to 1GB
Other files: Up to 500MB
Minimum Requirements:
The video must be at least 5 seconds long.
The resolution must be FHD (1920x1080) or higher.
Metadata must be present in the file; analysis cannot proceed without it.
✅ DJI Drone Data File Conversion Guide
To use data captured by a DJI drone, you need to convert the extracted text (.txt) file into a CSV file. Click the [TXT to CSV Conversion Guide] button to access the conversion site and step-by-step instructions.
Additional Tip
Ensure that the DJI Flight Record data matches the recorded video. To avoid data mismatches, carefully verify the flight record when capturing footage.
2. Enter Shooting Information
Fill in the required shooting details to proceed with the analysis.
Required Information
The information fields may vary. Fields marked with (*) are mandatory and must be filled in to proceed to the next page. When converting to an orthophoto, the image with perstpective is projected perpendicularly to crate a vertical view without perspective distortion.
3. Select Measurement Section
Use the bottom slider to adjust the analysis range or manually enter the start and end times in the right panel. Green-marked sections indicate frames with high distance estimation accuracy.
Section Length Limit
The selected section must be at least 5 seconds long.
The maximum length allowed is 1 minute.
4. Select Measurement Frame
DIVA estimates the desired object's length based on a known reference length.
5. Enter Reference Length Information
Please enter the length of the object you know in the selected frame. After clicking the [Enter Length] button, adjust the endpoints of the line segment displayed on the screen to match the length of the object.
Only one reference length can be created, and it will be displayed in red.
And then, please enter the length of the object after adjusting the length.
6. Check Length Measurement Results
The desired object's length is generated by estimating based on the reference length. After clicking the [Measure Length] button, adjust the endpoints of the line segment displayed on the screen to match the length of the object.
By adjusting the line segment to match the length or distance of the object you want to measure, you can see the estimated value based on the reference length you previously entered.
Up to 10 object lengths can be measured, and they will be displayed in green. By clicking the [Delete] button, you can delete the measured length.
✅ Data Storage Format
The length measurement results are saved in various formats.
a. Save Raw Data
Saves information about the lengths of the reference object and the measured object.
File name: {videoName}_frame_{frame_ID}_rawdata.csv
ID
A unique identifier number for the specific object
xn
The x-coordinate of the starting point of the length
yn
The y-coordinate of the endpoint of the length
pixel distance
The measured distance between the two points in pixels on the image
real distance
The value of the pixcel distance converted into the actual physical distance
b. Save Image
Saves an image displaying the measured length values.
File name: {videoName}_frame_{frame_ID}_results.jpg
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