English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Recent deep learning-based optical flow estimators have exhibited impressiveperformance in generating local flows between consecutive frames. However, theestimation of long-range flows between distant frames, particularly undercomplex object deformation and large motion occlusion, remains a challengingtask. One promising solution is to accumulate local flows explicitly orimplicitly to obtain the desired long-range flow. Nevertheless, theaccumulation errors and flow misalignment can hinder the effectiveness of thisapproach. This paper proposes a novel recurrent framework called AccFlow, whichrecursively backward accumulates local flows using a deformable module calledas AccPlus. In addition, an adaptive blending module is designed along withAccPlus to alleviate the occlusion effect by backward accumulation and rectifythe accumulation error. Notably, we demonstrate the superiority of backwardaccumulation over conventional forward accumulation, which to the best of ourknowledge has not been explicitly established before. To train and evaluate theproposed AccFlow, we have constructed a large-scale high-quality dataset namedCVO, which provides ground-truth optical flow labels between adjacent anddistant frames. Extensive experiments validate the effectiveness of AccFlow inhandling long-range optical flow estimation. Codes are available athttps://github.com/mulns/AccFlow .

AccFlow: Backward Accumulation for Long-Range Optical Flow