With just one (mounted place) digital camera, it appears to be inconceivable to find out which manner the disk is spinning: The sensor will go from black to white (or white to black), because the delineation crosses the sensor. There isn’t any details about the purpose ‘trailing’ or ‘forward of’ the purpose you might be measuring. The query linked exhibits how two sensors can be utilized to find out course.
If the digital camera will be moved, then it does change into potential, as a result of it may be utilized in the same method to having two sensors. This comes with limitations, nonetheless – at specific speeds of each disk and sensor you might discover you get an incorrect course. This is because of what alerts individuals name “aliasing”, which is most definitely to happen when the pace of rotation is way increased than the efficient frame-rate and move-rate of the sensor.
Given info along with what your query lists (specifically, can the sensor be moved, and at what pace; what’s the body price of the sensor; and what’s the most rotational pace of the disk), it could be potential to work out the course of rotation with one sensor. But in all probability not with out some stage of error.
