A polarization image sensor includes: photodiodes arranged on an image capturing plane; a color mosaic filter in which color filters in multiple different colors are arranged to face the photodiodes; an optical low-pass filter which covers the color mosaic filter; and polarization optical elements located closer to a light source than the optical low-pass filter is. A second microelectronic die is attached to the first die on one side, and to a second substrate on the other side. For each physical VLAN, a different loop-free topology is defined, although only one physical VLAN is active at any given time.