Drone photogrammetry is a powerful tool used in a variety of industries, from farming surveying. To make the most of this data, and ensure its quality there are several factors we must consider, including the tracking speed of the aircraft and appropriate camera settings
When flying a drone for photogrammetry, it's important to maintain a linear flight speed. The ideal speed varies depending on the aircraft and the camera being used, but a good rule of thumb is to aim for a speed of around 6% of the height. This allows the drone to capture clear and sharp images whilst avoiding motion blur.
Camera Settings:
The camera settings for drone photogrammetry also play a pivotal role in the quality of the final product. Here are some important settings to consider:
1. Shutter Speed: Set the shutter speed to suit the prevailing conditions. A good rule of thumb is 1/1000s for sunny conditions and 1/800s for cloudy conditions.
2. ISO: Keep the ISO as low as possible to reduce noise in the images. Aim for an ISO value of no more than 400, ideally closer to 100.
3. Aperture: Set the aperture to a value that provides sufficient depth of field. This will vary depending on the drone and camera being used, but a good starting point is around f/5.6.
4. White Balance: Adjust the white balance based on the lighting conditions. This will help ensure that the colours in the images are accurate. Don't use the automatic setting as this will result in vastly different results in the captured files.
By using the correct flight speed and camera settings, you can capture high-quality images that are suitable for use in most applications. Keep in mind that these settings may need to be adjusted based on the specific requirements of your project, so be prepared to experiment and make changes as needed.
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