# US 10,311,555 B2 · Imaging system and method for imaging objects with reduced image blur

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- Number: US 10,311,555 B2
- Document ID: US10311555B2
- Status: Granted
- Kind: B2
- Application number: 15/916,796
- Filed: 2018-03-09
- Published: 2018-09-06
- Granted: 2019-06-04
- Earliest claimed: 2009-03-13
- Assignees: Ramot at Tel-Aviv University Ltd.
- Applicants: Ramot At Tel-Aviv University Ltd.
- Inventors: Iftach Klapp; David Mendlovic
- Web page: https://patentgrep.com/patent/US10311555B2

## CPC

- G06T 5/73: Deblurring; Sharpening
- G02B 13/001: {Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras (G02B23/243 takes precedence)}
- G02B 26/06: for controlling the phase of light (G02B26/08 takes precedence {, measuring optical phase difference G01J9/00})
- G02B 27/0037: {with diffracting elements (G02B27/0056 takes precedence; holographic optical elements G02B5/32; zone systems G02B5/1876)}
- G02B 27/0075: {with means for altering, e.g. increasing, the depth of field or depth of focus}
- G02B 27/4266: {Diffraction theory; Mathematical models}
- G02B 27/46: Systems using spatial filters
- G06T 5/50: using two or more images, e.g. averaging or subtraction
- H04N 23/60: Control of cameras or camera modules
- H04N 23/81: for suppressing or minimising disturbance in the image signal generation
- G06T 2207/10004: Still image; Photographic image
- G06T 2207/20212: Image combination
- H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof
- H04N 23/951: by using two or more images to influence resolution, frame rate or aspect ratio
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

An imaging device is presented for use in an imaging system capable of improving the image quality. The imaging device has one or more optical systems defining an effective aperture of the imaging device. The imaging device comprises a lens system having an algebraic representation matrix of a diagonalized form defining a first Condition Number, and a phase encoder utility adapted to effect a second Condition Number of an algebraic representation matrix of the imaging device, smaller than said first Condition Number of the lens system.

## Claims

### Claim 1

A system comprising, an imaging system and a processor utility, the imaging system comprising:
first and second lens systems having corresponding first and second numerical apertures and both directed for imaging of a common object plane, the second numerical aperture is smaller than the first numerical aperture;
an image detection unit for detecting light collected by the first and second lens systems and generating corresponding first and second image data pieces indicative of the object plane from a common direction; and
the processor utility is configured to:
receive the first image data piece and the second image data piece that are collected with respect to the common object plane, and
process the first and second image data pieces to provide a reconstructed image of the field of view.

### Claim 2 (depends on 1)

The system of claim 1, wherein
the processing of the first and second image data pieces includes:
generating shifted data indicative of shifted duplications of the second image data piece with respect to the first image data piece,
determining combined image data corresponding to the first image data piece and the shifted data, and
generating reconstructed image data based on the combined image data.

### Claim 3 (depends on 1)

The system of claim 1, wherein the first and second lens systems have parallel optical axes being spaced apart from each other.

### Claim 4 (depends on 1)

The system of claim 1, wherein the image detection unit comprises a common light detector array configured for collecting image data associated with the first and second image data pieces.

### Claim 5 (depends on 1)

The system of claim 1, wherein the image detection unit comprises first and second light detectors associated with the first and second lens systems.

### Claim 6 (depends on 1)

The system claim 1, wherein the first and second lens systems are configured to operate concurrently.

### Claim 7 (depends on 1)

The system of claim 1, wherein the second lens system comprises a plurality of separate lenses with shifted fields of view enabling together light collection from a field of view at least partially similar to that of the first lens system.

### Claim 8 (depends on 1)

The system of claim 1, configured as a hand held camera unit.

### Claim 9 (depends on 1)

The system of claim 1, configured as a smartphone device.