Three-dimensional imaging device, image processing device, image processing method, and image processing program

摘要

A 3D image capture device according to an aspect of the present invention includes: a light-transmitting section including N different kinds of first filters (where N is an integer equal to or greater than two) which are arranged so that light rays are incident on those filters in parallel with each other and that the transmittances have mutually different wavelength dependences; an image sensor including N second filters, of which the transmittances have mutually different wavelength dependences; and an image capturing driving section driving the light-transmitting section so that image capturing sessions are carried out M times sequentially (where M is an integer equal to or greater than N), and that each of the first filters changes its positions from one of N positions that have been set in advance with respect to the image sensor after each time the image capturing session is carried out.

主权项

1. A 3D image capture device comprising: a light-transmitting optic including N different kinds of first filters, where N is an integer that is equal to or greater than two, which are arranged so that light rays are incident on those filters in parallel with each other and of which transmittances have mutually different wavelength dependences;
an image sensor which is arranged so as to receive the light that has been transmitted through the light-transmitting optic and which includes a photosensitive cell array and a filter array that is arranged to face the photosensitive cell array, each of the photosensitive cell array and the filter array being made up of a plurality of unit elements, each said unit element including N photosensitive cells and N second filters which are arranged to face the N photosensitive cells, respectively, and of which the transmittances have mutually different wavelength dependences, wherein the N kinds of first filters have a different combination of colors from the N second filters; an optical lens which produces an image on the image capturing plane of the image sensor; and a driver which drives the light-transmitting optic so that image capturing sessions are carried out M times sequentially, where M is an integer that is equal to or greater than N, and that each of the N kinds of first filters changes its positions from one of N positions after another every time the image capturing session is carried out, the N positions having been set in advance with respect to the image sensor; and a processor that generates N multi-viewpoint images that are associated with the N positions based on photoelectrically converted signals to be supplied from the N photosensitive cells that are included in each said unit element when image capturing sessions are carried every M times, wherein the processor generates M×N image signals representing light ray components that have passed through the N positions based on the photoelectrically converted signals to be supplied from the N photosensitive cells that are included in each said unit element when image capturing sessions are carried every M times, and synthesizes those N×M image signals generated together, thereby generating N color multi-viewpoint images associated with the N positions.