Motion trails from time-lapse video
Camille Goudeseune
TL;DR
This paper discusses a method to enhance time-lapse videos by adding motion trails to moving objects, improving visualization of their paths and aiding in the detection of transient events.
Contribution
It introduces a technique to generate motion trails from background subtraction in time-lapse videos, enhancing object motion visualization.
Findings
Motion trails clarify spatial relationships of objects.
Adding trails helps detect transient events.
Technique improves video preview analysis.
Abstract
From an image sequence captured by a stationary camera, background subtraction can detect moving foreground objects in the scene. Distinguishing foreground from background is further improved by various heuristics. Then each object's motion can be emphasized by duplicating its positions as a motion trail. These trails clarify the objects' spatial relationships. Also, adding motion trails to a video before previewing it at high speed reduces the risk of overlooking transient events.
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Taxonomy
TopicsVideo Surveillance and Tracking Methods · Advanced Vision and Imaging · Human Pose and Action Recognition
MethodsSPEED: Separable Pyramidal Pooling EncodEr-Decoder for Real-Time Monocular Depth Estimation on Low-Resource Settings