A novel contrast equalization method for chest radiograph

Min Zhang; Xuanqin Mou; Ying Long

doi:10.1117/12.654387

20 March 2006 A novel contrast equalization method for chest radiograph

Min Zhang, Xuanqin Mou, Ying Long

Proceedings Volume 6144, Medical Imaging 2006: Image Processing; 61446R (2006) https://doi.org/10.1117/12.654387
Event: Medical Imaging, 2006, San Diego, California, United States

Abstract

This paper proposed a novel contrast equalization algorithm for display or print ready processing of x-ray chest radiograph based on a multi-scale decomposition and reconstruction architecture. Firstly, using this architecture, the original image is decomposed into multi-scale components. At this stage, three methods are used. The first two methods are based on Gauss convolution filters and the third is based on mean curvature motion equation, which is one of nonlinear partial differential equation (PDE) models. Secondly the components at different scale are weighted using a set of controlled equalization coefficients and then integrated into the display or print ready image to ensure the improvement of the visibility of weakly contrasting details and the contrast between tissues in different area. Preliminary experiments on clinical images in deed testify the superiority of our algorithm. This algorithm can effectively improve contrast of low-contrast-region, increase the detail visibility of the rendered image to CRT or film as the image latitude has adequate broad.

Citation Download Citation

Min Zhang, Xuanqin Mou, and Ying Long "A novel contrast equalization method for chest radiograph", Proc. SPIE 6144, Medical Imaging 2006: Image Processing, 61446R (20 March 2006); https://doi.org/10.1117/12.654387

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