Is it possible to apply a mathematical– process/model/equation to a indirect measure, in order to caculate the direct measure? If so, how? Is there any general model(s) for this type of problem out there?
What if i want to calculate the direct measure of the gradient from a light source, but i can only observe indirect measures of the light source itself. Can i still calculate the specific gradient?
Are there any general model(s) for this type of problem?