Ed/ Autumn/ Dave,
I am trying to get my head around required settings for using the Inspire for recording geospatial data. With this regard could you be so kind as to obtain the following information please as I am trying to calculate a Ground Sampling Distance and require the following information
1. What is the Camera sensor width in mm = 2. What is the Camera Focal Length in mm (Real focallength) =
3. How do I calculate the Image width in pixels for a givenaltitude e.g. if flying at 30m altitude what is the image width at ground level in pixels
The above information will enable me to calculate the Ground Sampling Distance (GSD). This is the distance between 2 consecutive pixel centers measured on the ground. The bigger the value of the image GSD, the lower the spatial resolution of the image and the less visible details. The GSD is related to the flight height: the higher the altitude of the flight, the bigger the GSD value.
For example a Ground Sampling Distance (GSD) of 10 m means that one pixel in the image represents 10 m on the ground.
Would appreciate your help in providing the above camera specifications.
Thanks in advance..
GB
