Defects correction for digital dental x-ray sensors

Jong Dae Kim; Seo-Gyoo Kim; Jongwon Kim

doi:10.1117/12.426965

15 May 2001 Defects correction for digital dental x-ray sensors

Jong Dae Kim, Seo-Gyoo Kim, Jongwon Kim

Proceedings Volume 4306, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications II; (2001) https://doi.org/10.1117/12.426965
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

As medical imaging is adapting to the digital technology, solid imaging sensors are replacing the classical films in dental application. CCD is one of the typical image senors in this are. In the oral imaging, however, the size of image sensors should be large because there is not enough space for optical path of lens inside the mouth. The unavoidable defects are usually occurred in the large format CCD sensor. Practically it is not possible to get the defect free sensor because its cost is rapidly increasing to reduce the defects. In this paper we will present an efficient strategy to handle these defects. As the lighting is highly controllable differently from the common cameras, the controlled illumination is used to create uniform images with various levels. The local statistics in each controlled image are investigated to find defected areas. All the defected regions of each image are accumulated forming image-like representation. The defected regions are concealed with their neighbors by linear interpolation.

Citation Download Citation

Jong Dae Kim, Seo-Gyoo Kim, and Jongwon Kim "Defects correction for digital dental x-ray sensors", Proc. SPIE 4306, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications II, (15 May 2001); https://doi.org/10.1117/12.426965

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