| ---
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| license: cc-by-4.0
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| language:
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| - en
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| pretty_name: SceneTrans
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| size_categories:
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| - 10K<n<100K
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| task_categories:
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| - image-to-text
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| - visual-question-answering
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| - image-feature-extraction
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| tags:
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| - change-detection
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| - scene-difference
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| - spot-the-difference
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| - synthetic
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| - isaac-sim
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| - image-pair
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| - robotics
|
| ---
|
|
|
| # SceneTrans
|
|
|
| **SceneTrans** is a synthetic dataset of paired indoor scene images (A/B pairs) for
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| **scene change detection / "spot-the-difference"** research. Each pair shows the *same* scene
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| before and after an object-level edit — an object being **added**, **moved**, **removed**, or
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| left **unchanged** — together with a natural-language description and the corresponding action.
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|
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| All scenes are rendered with **NVIDIA Isaac Sim 5.1.0** from USD assets, and come with RGB, depth,
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| and segmentation modalities plus ground-truth metadata about what changed.
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|
|
| > 💻 Generation scripts, annotation notebooks, and full documentation are on GitHub:
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| > **[ShenGroup/SceneTrans](https://github.com/ShenGroup/SceneTrans)**.
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|
|
| ## Example
|
|
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| A snapshot of representative scenes and A/B pairs in the dataset:
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|
|
| 
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|
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| ## Scenes
|
|
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| The data is distributed as per-scene `.zip` archives (the number in each filename is the number of
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| A/B pairs), spanning **8 indoor scenes** and roughly **14,605** pairs in total.
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|
|
| | Archive | Scene | A/B pairs |
|
| | --- | --- | --- |
|
| | `kitchen_sim_2300.zip` | Kitchen | 2,300 |
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| | `studyroom_desk_sim_2400.zip` | Study room – desk | 2,400 |
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| | `bedroom1_bed_sim_2390.zip` | Bedroom – bed | 2,390 |
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| | `livingroom_sim_1990.zip` | Living room | 1,990 |
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| | `livingroom_shelf_sim_1925.zip` | Living room – shelf | 1,925 |
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| | `childrenroom_desk_sim_1660.zip` | Children room – desk | 1,660 |
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| | `diningroom_sim_1140.zip` | Dining room | 1,140 |
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| | `bedroom1_shelf_sim_800.zip` | Bedroom – shelf | 800 |
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| | `assets.zip` | USD scene/object assets (source environments) | – |
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|
|
| ## Change Types
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|
|
| Every pair belongs to one of four object-level transformations:
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|
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| - **Add** — an object absent in frame A is present in frame B.
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| - **Move** — an object is relocated (and possibly re-oriented) between the two frames.
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| - **Remove** — an object present in frame A is absent in frame B.
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| - **Unchanged** — both frames come from the same rendered state (a valid no-change sample).
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|
|
| ## License
|
|
|
| Released under the
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| [Creative Commons Attribution 4.0 International License (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/).
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|
|
