Edge detection in image sequence processing

Klaus Haarbeck; Johannes Bernarding; Brian Lofy; Jack Sklansky; Thomas Tolxdorff

doi:10.1117/12.274158

25 April 1997 Edge detection in image sequence processing

Klaus Haarbeck, Johannes Bernarding, Brian Lofy, Jack Sklansky, Thomas Tolxdorff

Proceedings Volume 3034, Medical Imaging 1997: Image Processing; (1997) https://doi.org/10.1117/12.274158
Event: Medical Imaging 1997, 1997, Newport Beach, CA, United States

Abstract

Images with a low signal-to-noise ratio (SNR) were processed with different algorithms based on the anisotropic diffusion (AD). This algorithm reduces the noise while preserving or enhancing the edges. Since sequences provide more image information, we developed an extension of the AD. In the modified AD the diffusion coefficients are used to vary the contrast normalization of successive frames. The Chamfer distance was used to measure the displacement of edges between the original and the processed images. Phantom images with varying gray levels and SNR, with fluctuating borders and with gross distortions were tested, as were clinical ultrasound images of the abdomen. The feed forward anisotropic diffusion (FFAD) scheme showed improved edge preserving capability for the phantom images as compared to the AD for the phantom images. Transferring the image information stabilized the edge detection even in cases where gross distortions or fluctuating contrast due to overall signal intensity changes led to geometric shifts in AD. Applying the FFAD to ultrasound images, the differences were less pronounced partly because of the different noise behavior. Keywords: Noise reduction, image-sequence processing, anisotropic diffusion, edge detection

Citation Download Citation

Klaus Haarbeck, Johannes Bernarding, Brian Lofy, Jack Sklansky, and Thomas Tolxdorff "Edge detection in image sequence processing", Proc. SPIE 3034, Medical Imaging 1997: Image Processing, (25 April 1997); https://doi.org/10.1117/12.274158

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Diffusion

Image processing

Ultrasonography

Anisotropic diffusion

Signal to noise ratio

Edge detection

Denoising

Show All Keywords

Keywords/Phrases

Search In:

Publication Years