[VSAONLINE] September 23, 20:00:GMT. Hongzhi You from University of Electronic Science and Technology of China

[Denis Kleyko]

Dear all,

The second talk of the season is approaching. 

It is scheduled on next on Monday September 23rd at 20:00 GMT and will feature Hongzhi You from University of Electronic Science and Technology of China. He will give a talk “Vector-Symbolic Architecture for Event-Based Optical Flow”. 

Date: September 23, 2024
Time: 20:00 GMT 
Zoom: https://ltu-se.zoom.us/j/65564790287

 

WEB: https://bit.ly/vsaonline 

Abstract: From a perspective of feature matching, optical flow estimation for event cameras involves identifying event correspondences by comparing feature similarity across accompanying event frames. In this talk, we introduces an effective and robust high-dimensional (HD) feature descriptor for event frames, utilizing Vector Symbolic Architectures (VSA). The topological similarity among neighboring variables within VSA contributes to the enhanced representation similarity of feature descriptors for flow-matching points, while its structured symbolic representation capacity facilitates feature fusion from both event polarities and multiple spatial scales. Based on this HD feature descriptor, we propose a novel feature matching framework for event-based optical flow, encompassing both model-based (VSA-Flow) and self-supervised learning (VSA-SM) methods. In VSA-Flow, accurate optical flow estimation validates the effectiveness of HD feature descriptors. In VSA-SM, a novel similarity maximization method based on the HD feature descriptor is proposed to learn optical flow in a self-supervised way from events alone, eliminating the need for auxiliary grayscale images. This contribution marks a significant advancement in event-based optical flow within the feature matching methodology. 

Best,

Denis

[Evgeny Osipov]

This is a reminder about the VSAONLINE webinar later today! See you all at 20:00 GMT.

 

Regards,

Evgeny

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