| # PhysicsMind Video Dataset | |
| This is the video generation (VG) component of the **PhysicsMind** benchmark, a unified physics-grounded benchmark that evaluates both reasoning and prediction under the same physical laws in both simulated and real-world settings. | |
| ## About PhysicsMind | |
| PhysicsMind is designed to evaluate whether video generation models can produce physically plausible motion trajectories that obey center-of-mass, torque, and inertial constraints. The benchmark focuses on three canonical mechanics scenarios: | |
| 1. **Center of Mass** - Measuring center of gravity by suspension method | |
| 2. **Lever Equilibrium** - Lever balance conditions | |
| 3. **Newton's First Law** - Inertia verification experiments | |
| Each scenario is realized with diverse real tabletop experiments and 2D simulations, enabling evaluation of whether models trained in simulation environments generalize well under real-world noise, dynamic differences, and visual variability. | |
| ## Directory Structure | |
| ``` | |
| vieo_data/ | |
| ├── Lever_Balance_Conditions/ | |
| │ ├── Boundary_Frames/ | |
| │ │ ├── Lever_Balance_Conditions_X_Initial_Frame.png | |
| │ │ └── Lever_Balance_Conditions_X_Final_Frame.png | |
| │ ├── video/ | |
| │ │ └── Lever_Balance_Conditions_X.mov | |
| │ ├── data_lever_balance_en.json | |
| │ ├── data_lever_balance_scene_en.json | |
| │ └── data_lever_balance_scene_object_law_en.json | |
| │ | |
| ├── Verification_of_Newton's First_Law/ | |
| │ ├── Boundary_Frames/ | |
| │ │ ├── Newtons_First_Law_X_Initial_Frame.png | |
| │ │ └── Newtons_First_Law_X_Final_Frame.png | |
| │ ├── video/ | |
| │ │ └── Newtons_First_Law_X.mp4 | |
| │ ├── data_newton_first_law_en.json | |
| │ ├── data_newton_first_law_scene_en.json | |
| │ └── data_newton_first_law_scene_action_law_en.json | |
| │ | |
| └── Measuring_Center_of_Gravity_by_Suspension_Method/ | |
| ├── real/ | |
| │ ├── Boundary_Frames/ | |
| │ │ ├── Center_of_Gravity_Suspension_X_Initial_Frame.png | |
| │ │ └── Center_of_Gravity_Suspension_X_Final_Frame.png | |
| │ ├── video/ | |
| │ │ └── Center_of_Gravity_Suspension_X.mp4 | |
| │ ├── data.json | |
| │ ├── data_scene.json | |
| │ └── data_scene_action_law.json | |
| │ | |
| └── sim/ | |
| ├── Boundary_Frames/ | |
| │ ├── Center_of_Gravity_Suspension_Sim_X_Initial_Frame.png | |
| │ └── Center_of_Gravity_Suspension_Sim_X_Final_Frame.png | |
| ├── video/ | |
| │ └── Center_of_Gravity_Suspension_Sim_X.mp4 | |
| ├── data.json | |
| ├── original_prompts.json | |
| ├── refined_prompts.json | |
| └── negative_prompts.json | |
| ``` | |
| ## Experiments | |
| ### 1. Lever Balance Conditions | |
| Demonstrates lever equilibrium principles, showing how forces and distances from the fulcrum affect balance. Videos feature varying initial setups and object types. | |
| ### 2. Verification of Newton's First Law (Inertia) | |
| Illustrates Newton's First Law of Motion through tablecloth-pull experiments with varying pulling speeds and object masses. | |
| ### 3. Measuring Center of Gravity by Suspension Method | |
| Shows how to determine an object's center of gravity using the suspension method with varying object shapes and suspension points. | |
| - **real/**: Real-world tabletop experiment recordings | |
| - **sim/**: 2D simulated videos | |
| ## File Descriptions | |
| | File | Description | | |
| |------|-------------| | |
| | `Boundary_Frames/` | Initial and final frame images for each video | | |
| | `video/` | Video files (.mov or .mp4) | | |
| | `data*.json` | Basic metadata with video name, path, category, and prompts | | |
| | `*_scene*.json` | Scene-level descriptions | | |
| | `*_action_law*.json` or `*_object_law*.json` | Physics law and action descriptions | | |
| | `original_prompts.json` | Original text prompts for video generation | | |
| | `refined_prompts.json` | Refined/improved prompts | | |
| | `negative_prompts.json` | Negative prompts for video generation | | |
| ## JSON Fields | |
| - **Video Name**: Filename of the video | |
| - **Video Path (Relative)**: Relative path to the video file | |
| - **Category**: Experiment category | |
| - **Initial Frame**: Path to the first frame image | |
| - **Final Frame**: Path to the last frame image | |
| - **Prompt**: Text description of the video content | |
| ## Citation | |
| If you use this dataset, please cite the PhysicsMind paper. | |