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Video to Events: Recycling Video Datasets for Event Cameras

CVPR 2020 · Video › Video segmentation and tracking · approach: Event-based video reconstruction · 235 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add contrast-threshold randomization during synthetic event generation (ablation)Synthetic-event ResNet-34 classifier · N-Caltech101accuracy: 0.751 -> 0.782Helped
Add dataset extension with additional images for classes (ablation)Synthetic-event ResNet-34 classifier · N-Caltech101accuracy: 0.751 -> 0.769Helped
Add both contrast-threshold randomization and dataset extension (ablation)Synthetic-event ResNet-34 classifier · N-Caltech101accuracy: 0.751 -> 0.807Helped
Fine-tune synthetic-event training on real events (ablation)Synthetic-event ResNet-34 classifier · N-Caltech101accuracy: 0.807 -> 0.906Helped
Add contrast-threshold randomization to real-event fine-tuning (ablation)Synthetic-event ResNet-34 classifier · N-Caltech101accuracy: 0.856 -> 0.904Helped
Add dataset extension to real-event fine-tuning (ablation)Synthetic-event ResNet-34 classifier · N-Caltech101accuracy: 0.856 -> 0.852No clear effect
Apply frame interpolation to video downsampled by factor 80 (ablation)Synthetic event generation and ResNet-34 classification · N-Caltech101, low-rate video factor 80test score: 0.618 -> 0.687Helped
Use synthetic events instead of real events for trainingSemantic segmentation with EST, 50 ms · DDD17 test splitMIoU: 54.81 -> 45.48Hurt
Fine-tune synthetic-event EST segmentation model on real events (ablation)Semantic segmentation with EST, 50 ms · DDD17 test splitMIoU: 45.48 -> 56.01Helped
Use EST rather than the Alonso et al. event representation after fine-tuning (ablation)U-Net with Xception encoder · DDD17 test split, 50 msMIoU: 55.17 -> 56.01Helped
Fine-tune Alonso-representation segmentation model on real events (ablation)Synthetic-event segmentation model · DDD17 test split, 50 msMIoU: 48.16 -> 55.17Helped
Train on synthetic events rather than real eventsAlonso-representation segmentation model · DDD17 test split, 50 msaccuracy: 89.76 -> 86.03Hurt

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