Denoising geometric image features

Duration: 41 mins 17 secs
Share this media item:
Embed this media item:


About this item
Image inherited from collection
Description: Levine, S
Thursday 26th October 2017 - 15:30 to 16:30
 
Created: 2017-10-27 08:50
Collection: Variational methods and effective algorithms for imaging and vision
Publisher: Isaac Newton Institute
Copyright: Levine, S
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
Screencast: No
Bumper: UCS Default
Trailer: UCS Default
 
Abstract: Given a noisy image, it can sometimes be more productive to denoise a transformed version of the image rather than process the image data directly. In this talk we will discuss two novel frameworks for image denoising, one that involves denoising the noisy image’s level line curvature and another that regularizes the components of the noisy image in a moving frame that encodes its local geometry. Both cases satisfy nice unexpected properties that provide justification for this framework. Experiments confirm the improvement when using this approach in terms of both PSNR and SSIM as well as visually.
Available Formats
Format Quality Bitrate Size
MPEG-4 Video 640x360    1.94 Mbits/sec 600.83 MB View Download
WebM 640x360    664.58 kbits/sec 201.03 MB View Download
iPod Video 480x270    522.3 kbits/sec 157.93 MB View Download
MP3 44100 Hz 249.74 kbits/sec 75.61 MB Listen Download
Auto * (Allows browser to choose a format it supports)