Technical name (radiometric/photometric/ray-optic) of the physical field that is measured with a camera

A camera (that is FPA and objective) is a device that measures [intensity][1] or radiant intensity vs. two angles (horizontal & vertical). So it generates a representation of the physical quantity

$$I(\phi, \theta)$$

How is this "field" actually named in physics? I am looking for a radiometric, photometric, ray-optics or similar term.

A few options that come to my mind:

• Intensity field
• The field is the electromagnetic field $\mathbf E(\mathbf r, t)$. The intensity is just $|\mathbf E|^2$. – John Rennie Jan 26 at 11:16