For mounting the module, the fact that the ideal mounting position most likely will not be available has to be considered when gathering data. The module therefore has to be able to work in ideal situations just as well as non-ideal ones.
For both bed and cooking plate, the ideal mounting position would be directly above the area of interest with a vertical optical axis, not covering any areas that might influence the measurements.
In a real-world scenario, the sensor will most likely view the area of interest at an angle, leading to either the full area of interest not being fully covered or additional area being covered, introducing a possible source of wrong readings.
The Figure below shows 3 different possible configurations for a mounded sensor over a bed, with the ideal configuration covering only the area of interest. Since this is unlikely to be possible, experiments will be performed with the configurations (b) and (c).