Evaluation of a high dynamic range video camera with non-regular sensor

Michael Schöberl; Joachim Keinert; Matthias Ziegler; Jürgen Seiler; Marco Niehaus; Gerald Schuller; André Kaup; Siegfried Foessel

doi:10.1117/12.2004258

4 February 2013 Evaluation of a high dynamic range video camera with non-regular sensor

Michael Schöberl, Joachim Keinert, Matthias Ziegler, Jürgen Seiler, Marco Niehaus, Gerald Schuller, André Kaup, Siegfried Foessel

Author Affiliations +

Proceedings Volume 8660, Digital Photography IX; 86600M (2013) https://doi.org/10.1117/12.2004258
Event: IS&T/SPIE Electronic Imaging, 2013, Burlingame, California, United States

Abstract

Although there is steady progress in sensor technology, imaging with a high dynamic range (HDR) is still difficult for motion imaging with high image quality. This paper presents our new approach for video acquisition with high dynamic range. The principle is based on optical attenuation of some of the pixels of an existing image sensor. This well known method traditionally trades spatial resolution for an increase in dynamic range. In contrast to existing work, we use a non-regular pattern of optical ND filters for attenuation. This allows for an image reconstruction that is able to recover high resolution images. The reconstruction is based on the assumption that natural images can be represented nearly sparse in transform domains, which allows for recovery of scenes with high detail. The proposed combination of non-regular sampling and image reconstruction leads to a system with an increase in dynamic range without sacrificing spatial resolution. In this paper, a further evaluation is presented on the achievable image quality. In our prototype we found that crosstalk is present and significant. The discussion thus shows the limits of the proposed imaging system.

Citation Download Citation

Michael Schöberl, Joachim Keinert, Matthias Ziegler, Jürgen Seiler, Marco Niehaus, Gerald Schuller, André Kaup, and Siegfried Foessel "Evaluation of a high dynamic range video camera with non-regular sensor", Proc. SPIE 8660, Digital Photography IX, 86600M (4 February 2013); https://doi.org/10.1117/12.2004258

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available