Patent · US Active

Imaging system using a lens unit with longitudinal chromatic aberrations and method of operating

US9979941B2 · kind B2 · utility

1Cited by

6References

16Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Muhammad Atif · Bellevue, US
Muhammad Siddiqui · Eßlingen, DE
Christian Unruh · Stuttgart, DE
Markus Kamm · Karlsruhe, DE

Key dates

Filing date	Jan 13, 2012
Grant date	May 22, 2018
Priority date	—
Expiry date	Dec 12, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N25/131
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A lens unit of an imaging unit features longitudinal chromatic aberration. From an imaged scene, an imaging sensor unit captures non-color-corrected first images of different spectral content. An intensity processing unit computes broadband luminance sharpness information from the first images on the basis of information descriptive for imaging properties of the lens unit. A chrominance processing unit computes chrominance information on the basis of the first images. A synthesizing unit combines the computed chrominance and luminance information to provide an output image having, for example, extended depth-of-field. The imaging unit may be provided in a camera system, a digital microscope, as examples.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.