构建首个6自由度物体位姿估计的事件相机合成数据集,支持高精度视觉算法研究。
YCB-Ev SD: Synthetic event-vision dataset for 6DoF object pose estimation
- 基于物理渲染生成50,000条34毫秒事件序列,覆盖完整场景与背景活动。
- 线性时间表面+双通道极性编码在位姿估计中显著优于其他方法。
- 适用于事件相机、6DoF位姿估计及神经网络推理的研究者快速上手。
我们提出 YCB-Ev SD,一个用于6自由度物体位姿估计的标准清晰度(SD)事件相机合成数据集。尽管合成数据在帧基计算机视觉中已成基础,事件视觉却缺乏类似全面资源。为此,我们基于YCB-Video物体的物理渲染(PBR)场景,遵循BOP基准方法,生成了50,000条持续34毫秒的事件序列。生成框架采用模拟线性相机运动,确保完整场景覆盖,包括背景活动。通过系统评估基于CNN的事件表示,我们发现具有线性衰减和双通道极性编码的时间表面表现最优,显著优于指数衰减与单通道方案。分析表明,极性信息对性能提升贡献最大,而线性时间编码更有效保留运动信息。数据集以结构化格式提供原始事件流与预计算最优表示,支持即用与可复现基准测试。数据集公开获取:https://huggingface.co/datasets/paroj/ycbev_sd。
原文摘要 · Abstract (English)
We introduce YCB-Ev SD, a synthetic dataset of event-camera data at standard definition (SD) resolution for 6DoF object pose estimation. While synthetic data has become fundamental in frame-based computer vision, event-based vision lacks comparable comprehensive resources. Addressing this gap, we present 50,000 event sequences of 34 ms duration each, synthesized from Physically Based Rendering (PBR) scenes of YCB-Video objects following the Benchmark for 6D Object Pose (BOP) methodology. Our generation framework employs simulated linear camera motion to ensure complete scene coverage, including background activity. Through systematic evaluation of event representations for CNN-based inference, we demonstrate that time-surfaces with linear decay and dual-channel polarity encoding achieve superior pose estimation performance, outperforming exponential decay and single-channel alternatives by significant margins. Our analysis reveals that polarity information contributes most substantially to performance gains, while linear temporal encoding preserves critical motion information more effectively than exponential decay. The dataset is provided in a structured format with both raw event streams and precomputed optimal representations to facilitate immediate research use and reproducible benchmarking. The dataset is publicly available at https://huggingface.co/datasets/paroj/ycbev_sd.
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