Image Input Apparatus, Image Input Method, Personal Authentication Apparatus, and Electronic Apparatus
First Claim
1. An image input apparatus that inputs an image of an object residing within a living body, the apparatus comprising:
- a light source that irradiates near infrared light on the living body;
a lens array that is arranged at a position facing the living body and includes a plurality of lenses, each of the lenses having a face with zero or negative power arranged at a side facing the living body and a face with positive power arranged at a side facing an image surface;
an imaging unit that is arranged at the image surface side of the lens array and is configured to form a compound-eye image corresponding to a collection of ommatidium images formed by the lenses of the lens array; and
a reconstruction unit that is configured to reconstruct a single image from the compound-eye image formed by the imaging unit using a parallax between the ommatidium images, said reconstructed single image being input as the image of the object.
2 Assignments
0 Petitions
Accused Products
Abstract
An image input apparatus that inputs an image of an object residing within a living body is disclosed. The image input apparatus includes a light source that irradiates near infrared light on the living body, a lens array arranged at a position facing the living body and including plural lenses each having a face with zero or negative power arranged at a side facing the living body and a face with positive power arranged at a side facing an image surface, an imaging unit arranged at the image surface side of the lens array that forms a compound-eye image corresponding to a collection of ommatidium images formed by the lenses of the lens array, and a reconstruction unit that reconstructs a single image from the compound-eye image using a parallax between the ommatidium images. The reconstructed single image is input as the image of the object.
-
Citations
11 Claims
-
1. An image input apparatus that inputs an image of an object residing within a living body, the apparatus comprising:
-
a light source that irradiates near infrared light on the living body; a lens array that is arranged at a position facing the living body and includes a plurality of lenses, each of the lenses having a face with zero or negative power arranged at a side facing the living body and a face with positive power arranged at a side facing an image surface; an imaging unit that is arranged at the image surface side of the lens array and is configured to form a compound-eye image corresponding to a collection of ommatidium images formed by the lenses of the lens array; and a reconstruction unit that is configured to reconstruct a single image from the compound-eye image formed by the imaging unit using a parallax between the ommatidium images, said reconstructed single image being input as the image of the object. - View Dependent Claims (2, 3, 4)
-
-
5. An image input apparatus that inputs an image of an object residing within a living body, the apparatus comprising:
-
a light source that irradiates near infrared light on the living body; a lens array that is arranged at a position facing the living body and includes a plurality of lenses, each of the lenses having a face with zero or negative power at a side facing the living body and a face with positive power at a side facing an image surface; an imaging unit that is arranged on the image surface side of the lens array and is configured to form a compound-eye image corresponding to a collection of ommatidium images formed by the lenses of the lens array; a correction unit that is configured to correct image degradation caused by the lenses in the ommatidium images of the compound-eye image formed by the imaging unit based on optical transfer function data pertaining to the lenses that are prepared beforehand and generate a corrected compound-eye image; and a reconstruction unit that is configured to reconstruct a single image from the corrected compound-eye image generated by the correction unit using a parallax between the ommatidium images, said reconstructed single image being input as the image of the object. - View Dependent Claims (6, 7, 8, 9, 10)
-
-
11. An image input method for inputting an image of an object residing within a living body, the method comprising the steps of:
-
using an imaging optical system that includes a light source that irradiates near infrared light on the living body; a lens array that is arranged at a position facing the living body and includes a plurality of lenses, each of the lenses having a face with zero or negative power at a side facing the living body and a face with positive power at a side facing an image surface; and an imaging unit that is arranged on the image surface side of the lens array and is configured to form a compound-eye image corresponding to a collection of ommatidium images formed by the lenses of the lens array; correcting image degradation caused by the lenses in the ommatidium images of the compound-eye image formed by the imaging unit based on optical transfer function data pertaining to the lenses that are prepared beforehand to generate a corrected compound-eye image; reconstructing a single image from the corrected compound-eye image using a parallax between the ommatidium images; and inputting the reconstructed single image as the image of the object.
-
Specification