cotracker
CoTracker3_Kubric
Kubric Dataset for CoTracker 3
Overview
This dataset was specifically created for training CoTracker 3, a state-of-the-art point tracking model. The dataset was generated using the Kubric engine.
Dataset Specifications
Size: ~6,000 sequences
Resolution: 512×512 pixels
Sequence Length: 120 frames per sequence
Camera Movement: Carefully rendered with subtle camera motion to simulate realistic scenarios
Format: Generated using Kubric engine
Usage
The… See the full description on the dataset page: https://huggingface.co/datasets/facebook/CoTracker3_Kubric.OpenVID-Cotracker每个生成的 .npz 文件包含以下两个数组：
tracks :
含义 ：点的运动轨迹坐标。
形状 (Shape) : (1, T, N, 2)
1 : Batch size (默认为 1)。
T : 视频的总帧数。
N : 采样点的数量（这里是30）。
2 : 每个点的坐标 (x, y) 。
visibility :
含义 ：点的可见性掩码。
形状 (Shape) : (1, T, N)
1 : Batch size。
T : 视频的总帧数。
N : 采样点的数量。
数值 ：通常为布尔值或 0/1，代表该点在当前帧是否被遮挡或移出画面。