Accurate identification of saturated pixels for high dynamic range measurement

Yunfei Long; Shuaijun Wang; Wei Wu; Kai Liu

doi:10.1117/1.OE.54.4.043106

20 April 2015 Accurate identification of saturated pixels for high dynamic range measurement

Yunfei Long, Shuaijun Wang, Wei Wu, Kai Liu

Author Affiliations +

Optical Engineering, Vol. 54, Issue 4, 043106 (April 2015). https://doi.org/10.1117/1.OE.54.4.043106

Abstract

Measuring surfaces with high reflectivity variation via structured light illumination requires accurately identifying saturated pixels in captured images. However, conventional methods simply determine saturation by intensities, which is susceptible to a camera blurring effect and random noise. To solve this problem, we present a method that uses the magnitude of a nonprincipal frequency component to identify saturated pixels. Experimental results demonstrate that 1) higher accuracy of three-dimensional reconstruction can be achieved and 2) high-contrast surfaces can be accurately reconstructed.

Citation Download Citation

Yunfei Long, Shuaijun Wang, Wei Wu, and Kai Liu "Accurate identification of saturated pixels for high dynamic range measurement," Optical Engineering 54(4), 043106 (20 April 2015). https://doi.org/10.1117/1.OE.54.4.043106

Published: 20 April 2015

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