Event Camera Introduction

What is an Event Camera?

An event camera is a type of imaging sensor that operates in a fundamentally different way compared to traditional cameras. While conventional cameras capture images by continuously sampling the scene at fixed intervals, event cameras detect and transmit changes in brightness (intensity) on a per-pixel basis.

Sample images:

Event Camera Optical Flow:

(https://arxiv.org/pdf/2112.10591.pdf)

Each colored pixel is a vector with a direction and a magnitude.

Optical flow can be used to find the focus of expansion, and thus the direction of travel:

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