In class I said that the sensor pixel P1 integrates energy from all rays of light in the green region of ray space. Can someone explain this? If you can, you basically understand the main point of the whole second part of this lecture.
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Firstly, note that the "green region of ray space" is the set of all light rays originating at scene object 2. In terms of the ray space plot for this light field, scene object 2 is on the scene focal plane, so all light that it emits towards the lens will be focused on a single sensor pixel (p1) on the sensor plane when it passes through the lens. As you can see in the diagram and ray space plot, all of the light emitted from scene object 2 in fact passes through the lens aperture. Thus, because that light is focused on sensor pixel P1 after it passes through the lens aperture, that sensor pixel integrates energy from all rays of light in the green region of ray space.
In class I said that the sensor pixel P1 integrates energy from all rays of light in the green region of ray space. Can someone explain this? If you can, you basically understand the main point of the whole second part of this lecture.
Firstly, note that the "green region of ray space" is the set of all light rays originating at scene object 2. In terms of the ray space plot for this light field, scene object 2 is on the scene focal plane, so all light that it emits towards the lens will be focused on a single sensor pixel (p1) on the sensor plane when it passes through the lens. As you can see in the diagram and ray space plot, all of the light emitted from scene object 2 in fact passes through the lens aperture. Thus, because that light is focused on sensor pixel P1 after it passes through the lens aperture, that sensor pixel integrates energy from all rays of light in the green region of ray space.