WD-DETR: ウェーブレットノイズ除去で強化したイベントカメラ向けリアルタイム物体検出トランスフォーマ
WD-DETR: Wavelet Denoising-Enhanced Real-Time Object Detection Transformer for Robot Perception with Event Cameras
イベントカメラの密なイベント表現に含まれるノイズをウェーブレット変換で除去し、Transformerベースの検出器でリアルタイム物体検出を高精度化した研究。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
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著者: Yangjie Cui, Boyang Gao, Yiwei Zhang, Xin Dong, Jinwu Xiang, Daochun Li, Zhan Tu
分類: cs.RO, cs.CV
原文アブストラクト
Previous studies on event camera sensing have demonstrated certain detection performance using dense event representations. However, the accumulated noise in such dense representations has received insufficient attention, which degrades the representation quality and increases the likelihood of missed detections. To address this challenge, we propose the Wavelet Denoising-enhanced DEtection TRansformer, i.e., WD-DETR network, for event cameras. In particular, a dense event representation is presented first, which enables real-time reconstruction of events as tensors. Then, a wavelet transform method is designed to filter noise in the event representations. Such a method is integrated into the backbone for feature extraction. The extracted features are subsequently fed into a transformer-based network for object prediction. To further reduce inference time, we incorporate the Dynamic Reorganization Convolution Block (DRCB) as a fusion module within the hybrid encoder. The proposed method has been evaluated on three event-based object detection datasets, i.e., DSEC, Gen1, and 1Mpx. The results demonstrate that WD-DETR outperforms tested state-of-the-art methods. Additionally, we implement our approach on a common onboard computer for robots, the NVIDIA Jetson Orin NX, achieving a high frame rate of approximately 35 FPS using TensorRT FP16, which is exceptionally well-suited for real-time perception of onboard robotic systems.
関連論文
- 時計を曲げる:イベントベース物体検出における遅延を克服する先読み予測イベントカメラ/物体検出
- EvDetMAV: 移動するイベントカメラからの汎用MAV検出イベントカメラ/物体検出
- FlexEvent: 動作周波数が変化する環境での柔軟なイベントフレーム物体検出イベントカメラ/物体検出
- イベントとフレームの階層的特徴洗練ネットワークによる物体検出イベントカメラ/物体検出
