I’m currently trying to understand a possible mismatch in the data sheet of the OAK-D camera.
For the OAK-D stereo pair, the focal length in pixel size is calculated using HVOF in the tutorials: https://docs.oakchina.cn/projects/api/samples/calibration/calibration_reader.html
The result is 882.5 pixels, which would yield (considering the 3 µm pixel size) a focal length of 882.5/3µm = 2.64 mm. However, in the datasheet, the effective focal length is stated to be 2.35 mm. Where does this deviation come from?