{"id":182337,"date":"2008-10-16T00:00:00","date_gmt":"2009-10-31T09:34:30","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/video-denoising\/"},"modified":"2016-09-09T10:02:01","modified_gmt":"2016-09-09T17:02:01","slug":"video-denoising","status":"publish","type":"msr-video","link":"https:\/\/www.microsoft.com\/en-us\/research\/video\/video-denoising\/","title":{"rendered":"Video denoising"},"content":{"rendered":"<div class=\"asset-content\">\n<p>It is well known that noise can be introduced into video during capturing, storage and transmission. It is especially bad in dark regions in the video where the signal-to-noise ratio is low. Such noise is typically visually disturbing and can cause serious problem to many video coding systems such as MPEG-1\/2\/4, and H.261\/3\/4. This is because many precious bits would need to be spent to encode this undesirable noise in the video. As MPEG-2, MPEG-4, H.263 and H.264 are used widely in consumer electronics such as DVD, Blu-ray, DVB-C\/T\/S\/H, DMB, HDTV, PDA, IPTV, video conferencing and streaming, there is a great need for video denoising.<\/p>\n<p>In this talk, we will introduce a class of optimal linear filter in temporal domain to suppress noise. Even when the filter length is very small, the denoising results can be very significant. In pre-filtering applications, these filters require robust motion estimation (in noisy condition) which requires much computation. We will show a class of fast motion estimation especially designed for denoising purpose. We will also introduce a formulation that can integrate the denoising filter seamlessly into the video encoders and decoders such as MPEG-1\/2\/4 and H.261\/3\/4. The resulting complexity is greatly reduced and the video coding performance greatly improved.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>It is well known that noise can be introduced into video during capturing, storage and transmission. It is especially bad in dark regions in the video where the signal-to-noise ratio is low. Such noise is typically visually disturbing and can cause serious problem to many video coding systems such as MPEG-1\/2\/4, and H.261\/3\/4. This is [&hellip;]<\/p>\n","protected":false},"featured_media":194570,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr_hide_image_in_river":0,"footnotes":""},"research-area":[],"msr-video-type":[],"msr-locale":[268875],"msr-post-option":[],"msr-session-type":[],"msr-impact-theme":[],"msr-pillar":[],"msr-episode":[],"msr-research-theme":[],"class_list":["post-182337","msr-video","type-msr-video","status-publish","has-post-thumbnail","hentry","msr-locale-en_us"],"msr_download_urls":"","msr_external_url":"https:\/\/youtu.be\/Zp3SEzQG_Ko","msr_secondary_video_url":"","msr_video_file":"","_links":{"self":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/182337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video"}],"about":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/types\/msr-video"}],"version-history":[{"count":0,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/182337\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media\/194570"}],"wp:attachment":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media?parent=182337"}],"wp:term":[{"taxonomy":"msr-research-area","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/research-area?post=182337"},{"taxonomy":"msr-video-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video-type?post=182337"},{"taxonomy":"msr-locale","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-locale?post=182337"},{"taxonomy":"msr-post-option","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-post-option?post=182337"},{"taxonomy":"msr-session-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-session-type?post=182337"},{"taxonomy":"msr-impact-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-impact-theme?post=182337"},{"taxonomy":"msr-pillar","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-pillar?post=182337"},{"taxonomy":"msr-episode","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-episode?post=182337"},{"taxonomy":"msr-research-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-research-theme?post=182337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}