| license: cc-by-4.0 | |
| task_categories: | |
| - other | |
| size_categories: | |
| - n<1K | |
| dataset_info: | |
| features: | |
| - name: category | |
| dtype: string | |
| - name: path | |
| dtype: string | |
| - name: scale | |
| dtype: float64 | |
| - name: rotation | |
| dtype: float64 | |
| - name: 180-degree symmetry | |
| dtype: int64 | |
| - name: 90-degree symmetry | |
| dtype: int64 | |
| - name: round | |
| dtype: int64 | |
| - name: rotation_red | |
| dtype: 'null' | |
| - name: rotation_green | |
| dtype: 'null' | |
| - name: mesh_extent_x | |
| dtype: float64 | |
| - name: mesh_extent_y | |
| dtype: float64 | |
| - name: mesh_extent_z | |
| dtype: float64 | |
| - name: mesh_offset_x | |
| dtype: float64 | |
| - name: mesh_offset_y | |
| dtype: float64 | |
| - name: mesh_offset_z | |
| dtype: float64 | |
| splits: | |
| - name: all | |
| num_bytes: 19039 | |
| num_examples: 109 | |
| download_size: 13548 | |
| dataset_size: 19039 | |
| configs: | |
| - config_name: default | |
| data_files: | |
| - split: all | |
| path: data/all-* | |
| # LychSim Objects Dataset | |
| This dataset provides annotations for 3D assets used in **LychSim**, a controllable and interactive simulation framework for vision research. | |
| For each 3D asset that appears in LychSim scenes, we annotate its semantic category, canonical scale, and pose alignment (the calibration yaw that puts the asset's "front" along +X), together with a precomputed `mesh_offset` so that spawning at `location + mesh_offset` lands the visual bounding box bottom-center exactly on the target location. These annotations are critical for producing semantically aligned ground-truth 3D object poses and for programmatic object placement and scene manipulation. | |
| - **Paper:** [LychSim: A Controllable and Interactive Simulation Framework for Vision Research](https://huggingface.co/papers/2605.12449) | |
| - **Project Page:** [https://lychsim.github.io/](https://lychsim.github.io/) | |
| - **Repository:** [https://github.com/wufeim/LychSim](https://github.com/wufeim/LychSim) | |
| ## Sample Usage | |
| You can load this dataset using the Hugging Face `datasets` library: | |
| ```python | |
| from datasets import load_dataset | |
| objects = load_dataset("wufeim/lychsim_objects") | |
| ``` | |
| ## License | |
| This dataset is released under the Creative Commons Attribution 4.0 International license (CC BY 4.0). |