I have an Arducam Pivariety 8MP Synchronized Stereo 360° Camera Kit for Raspberry Pi and am trying with some success to convert the captured Fisheye images to Equirectangular projection.
However, while the fisheye lenses do give a 220-degree field of view, this is not linear - it is not the case that 'x pixels out from the center == constan_factor * x degrees from straight ahead'. This is hardly unexpected, but it means that converting from the captured Fisheye image to a different projection (such as equirectangular) requires a correction - see this write-up of the overall issue as well as measured curves from several existing lenses.
In order to enable me, and anyone else who has one of these, to use the captured image fully, having such a Fisheye correction curve available would be hugely helpful.
Do you have (or could you measure) and could share the fisheye correction curve for the lens(es) in question, that wereincluded with the Arducam Pivariety 8MP Synchronized Stereo 360° Camera Kit for Raspberry Pi?
// Christian Brunschen