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README.md

@@ -296,7 +296,7 @@ This design guarantees that training, validation, and test sets are fully separa
 
 
 <h3 id="physical-phenomena" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 0;"><span style="display: inline-block; width: 1.08em;">&bull;</span>Physical Phenomenon and Abbreviations</h3>
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 <details>
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 PhysInOne provides synchronized visual and physical annotations for each dynamic 3D scene.
 
 <h3 id="depth" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 0;"><span style="display: inline-block; width: 1.08em;">&bull;</span>Depth</h3>
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 Depth maps are provided in `.npz` format and are expressed in meters.
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 <h3 id="segmentation" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 0;"><span style="display: inline-block; width: 1.08em;">&bull;</span>Segmentation</h3>
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 Segmentation masks encode background, static foreground objects, and dynamic foreground objects.
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 <h3 id="captions" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 0;"><span style="display: inline-block; width: 1.08em;">&bull;</span>Captions</h3>
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 Each scene includes a `caption.txt` file containing an English paragraph that describes the visual elements and the physical activity.
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 <h3 id="trajectories" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 0;"><span style="display: inline-block; width: 1.08em;">&bull;</span>Trajectories</h3>
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 TODO
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 <h3 id="cameras" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 0;"><span style="display: inline-block; width: 1.08em;">&bull;</span>Cameras</h3>
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 Each scene includes multiple camera viewpoints to support 3D perception, reconstruction, and physics-based visual reasoning tasks.
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 <h5 id="camera-json-structure" style="font-size: 1.02em; margin-top: 0.55em; margin-bottom: 0.12em; line-height: 1.16; font-weight: 700; margin-left: 48px;"><span style="display: inline-block; width: 1.02em;">&#9702;</span>Camera JSON structure</h5>
 
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 Per camera:
 
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 <h5 id="dynamic-camera-behavior" style="font-size: 1.02em; margin-top: 0.55em; margin-bottom: 0.12em; line-height: 1.16; font-weight: 700; margin-left: 48px;"><span style="display: inline-block; width: 1.02em;">&#9702;</span>Dynamic camera behavior</h5>
 
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 - The dynamic camera moves along a path randomly sampled on a hemisphere surrounding the center of the main objects, providing diverse viewpoints.
 - JSON frame indices correspond directly to video frame indices.
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 <h3 id="point-clouds" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 0;"><span style="display: inline-block; width: 1.08em;">&bull;</span>Point Clouds</h3>
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 Each scene should include `points.ply`.
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 <h3 id="download-scripts" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 24px;">1. Download Scripts</h3>
 
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 Please download the `assets` folder, which contains:
 
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 <h3 id="install-dependencies" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 24px;">2. Install Dependencies</h3>
 
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 ```bash
 pip install huggingface_hub tqdm
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 <h3 id="filter-cases" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 24px;">3. Filter Cases</h3>
 
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 The following examples show common filtering workflows.
 
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 <h4 id="filter-by-split" style="font-size: 1.12em; margin-top: 0.55em; margin-bottom: 0.14em; line-height: 1.18; margin-left: 48px;">3.1 Filter by split</h4>
 
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 ```bash
 python scripts/filter_cases.py \
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 <h4 id="filter-by-split-and-activity" style="font-size: 1.12em; margin-top: 0.55em; margin-bottom: 0.14em; line-height: 1.18; margin-left: 48px;">3.2 Filter by split and activity complexity</h4>
 
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 ```bash
 python scripts/filter_cases.py \
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 <h4 id="filter-by-phenomenon" style="font-size: 1.12em; margin-top: 0.55em; margin-bottom: 0.14em; line-height: 1.18; margin-left: 48px;">3.3 Filter by physical phenomenon abbreviation</h4>
 
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 By default, phenomenon matching uses `contains` mode. For example, the following command selects all double-physics cases that contain `FrictionStop`:
 
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 <h4 id="random-sampling" style="font-size: 1.12em; margin-top: 0.55em; margin-bottom: 0.14em; line-height: 1.18; margin-left: 48px;">3.4 Randomly sample a fixed number of cases</h4>
 
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 `--num` is the global number of cases sampled after filtering. The default random seed is `42`.
 
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 <h3 id="download-selected-cases" style="font-size: 1.35em; margin-top: 0.75em; margin-bottom: 0.22em; line-height: 1.2; margin-left: 24px;">4. Download Selected Cases</h3>
 
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 Each selected case is downloaded as a zip file from the corresponding Hugging Face shard repository.