Dataset Viewer
Duplicate
The dataset viewer is not available for this split.
Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code:   StreamingRowsError
Exception:    CastError
Message:      Couldn't cast
asset_id: string
dataset: string
input: string
input_format: string
gaussian_source: string
note: string
gaussian_count: int64
fields: list<item: string>
  child 0, item: string
gaussian_ply: string
splat_path: string
mask_manifest: string
slots: int64
initial_field: string
trained_field: string
object_ply: string
object_label_policy: null
background_training: null
public_splat: null
public_object_ply: null
training: struct<initial_loss: double, final_loss: double, iterations: int64, supervised_gaussians: int64, fra (... 795 chars omitted)
  child 0, initial_loss: double
  child 1, final_loss: double
  child 2, iterations: int64
  child 3, supervised_gaussians: int64
  child 4, frames: int64
  child 5, projected: int64
  child 6, matched: int64
  child 7, vote_quality: struct<gaussian_count: int64, slots: int64, supervised_gaussians: int64, unsupervised_gaussians: int (... 514 chars omitted)
      child 0, gaussian_count: int64
      child 1, slots: int64
      child 2, supervised_gaussians: int64
      child 3, unsupervised_gaussians: int64
      child 4, supervised_fraction: double
      child 5, projected: int64
      child 6, matched: int64
      child 7, matched_projected_fraction: double
      child 8, observation_weight: struct<min: double, mean: double, max: double>
          child 0, min: double
          child 1, mean: double
          child 2, max: double
      child 9, vote_conflict: struct<gaussians: int64, fraction: double, target_entropy: double, normalized_tar
...
string, device: string, points_per_side: int64, pred_iou_thre (... 115 chars omitted)
  child 0, model_type: string
  child 1, checkpoint: string
  child 2, device: string
  child 3, points_per_side: int64
  child 4, pred_iou_thresh: double
  child 5, stability_score_thresh: double
  child 6, min_area: int64
  child 7, max_area_fraction: double
  child 8, max_masks_per_frame: int64
source: string
width: int64
source_type: string
split: string
frames: list<item: struct<name: string, image_path: string, transform_matrix: list<item: list<item: double>> (... 135 chars omitted)
  child 0, item: struct<name: string, image_path: string, transform_matrix: list<item: list<item: double>>, masks: li (... 123 chars omitted)
      child 0, name: string
      child 1, image_path: string
      child 2, transform_matrix: list<item: list<item: double>>
          child 0, item: list<item: double>
              child 0, item: double
      child 3, masks: list<item: struct<slot: int64, label: string, mask_path: string, confidence: double, area: int64, bb (... 24 chars omitted)
          child 0, item: struct<slot: int64, label: string, mask_path: string, confidence: double, area: int64, bbox: list<it (... 12 chars omitted)
              child 0, slot: int64
              child 1, label: string
              child 2, mask_path: string
              child 3, confidence: double
              child 4, area: int64
              child 5, bbox: list<item: double>
                  child 0, item: double
to
{'width': Value('int64'), 'height': Value('int64'), 'camera_angle_x': Value('float64'), 'source': Value('string'), 'source_type': Value('string'), 'split': Value('string'), 'slots': List({'slot': Value('int64'), 'label': Value('string')}), 'sam': {'model_type': Value('string'), 'checkpoint': Value('string'), 'device': Value('string'), 'points_per_side': Value('int64'), 'pred_iou_thresh': Value('float64'), 'stability_score_thresh': Value('float64'), 'min_area': Value('int64'), 'max_area_fraction': Value('float64'), 'max_masks_per_frame': Value('int64')}, 'frames': List({'name': Value('string'), 'image_path': Value('string'), 'transform_matrix': List(List(Value('float64'))), 'masks': List({'slot': Value('int64'), 'label': Value('string'), 'mask_path': Value('string'), 'confidence': Value('float64'), 'area': Value('int64'), 'bbox': List(Value('float64'))})}), 'split_manifest': {'source': Value('string'), 'kind': Value('string'), 'heldout_every': Value('int64'), 'heldout_offset': Value('int64'), 'source_frames': Value('int64'), 'frames': Value('int64')}}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
                  return get_rows(
                      dataset=dataset,
                  ...<4 lines>...
                      column_names=column_names,
                  )
                File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
                  return func(*args, **kwargs)
                File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
                  rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
                File "/src/services/worker/src/worker/utils.py", line 478, in safe_iter
                  yield from ds.decode(False) if ds.features else ds
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2818, in __iter__
                  for key, example in ex_iterable:
                                      ^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2355, in __iter__
                  for key, pa_table in self._iter_arrow():
                                       ~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2380, in _iter_arrow
                  for key, pa_table in self.ex_iterable._iter_arrow():
                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
                  for key, pa_table in iterator:
                                       ^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
                  for key, pa_table in self.generate_tables_fn(**gen_kwags):
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2369, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              asset_id: string
              dataset: string
              input: string
              input_format: string
              gaussian_source: string
              note: string
              gaussian_count: int64
              fields: list<item: string>
                child 0, item: string
              gaussian_ply: string
              splat_path: string
              mask_manifest: string
              slots: int64
              initial_field: string
              trained_field: string
              object_ply: string
              object_label_policy: null
              background_training: null
              public_splat: null
              public_object_ply: null
              training: struct<initial_loss: double, final_loss: double, iterations: int64, supervised_gaussians: int64, fra (... 795 chars omitted)
                child 0, initial_loss: double
                child 1, final_loss: double
                child 2, iterations: int64
                child 3, supervised_gaussians: int64
                child 4, frames: int64
                child 5, projected: int64
                child 6, matched: int64
                child 7, vote_quality: struct<gaussian_count: int64, slots: int64, supervised_gaussians: int64, unsupervised_gaussians: int (... 514 chars omitted)
                    child 0, gaussian_count: int64
                    child 1, slots: int64
                    child 2, supervised_gaussians: int64
                    child 3, unsupervised_gaussians: int64
                    child 4, supervised_fraction: double
                    child 5, projected: int64
                    child 6, matched: int64
                    child 7, matched_projected_fraction: double
                    child 8, observation_weight: struct<min: double, mean: double, max: double>
                        child 0, min: double
                        child 1, mean: double
                        child 2, max: double
                    child 9, vote_conflict: struct<gaussians: int64, fraction: double, target_entropy: double, normalized_tar
              ...
              string, device: string, points_per_side: int64, pred_iou_thre (... 115 chars omitted)
                child 0, model_type: string
                child 1, checkpoint: string
                child 2, device: string
                child 3, points_per_side: int64
                child 4, pred_iou_thresh: double
                child 5, stability_score_thresh: double
                child 6, min_area: int64
                child 7, max_area_fraction: double
                child 8, max_masks_per_frame: int64
              source: string
              width: int64
              source_type: string
              split: string
              frames: list<item: struct<name: string, image_path: string, transform_matrix: list<item: list<item: double>> (... 135 chars omitted)
                child 0, item: struct<name: string, image_path: string, transform_matrix: list<item: list<item: double>>, masks: li (... 123 chars omitted)
                    child 0, name: string
                    child 1, image_path: string
                    child 2, transform_matrix: list<item: list<item: double>>
                        child 0, item: list<item: double>
                            child 0, item: double
                    child 3, masks: list<item: struct<slot: int64, label: string, mask_path: string, confidence: double, area: int64, bb (... 24 chars omitted)
                        child 0, item: struct<slot: int64, label: string, mask_path: string, confidence: double, area: int64, bbox: list<it (... 12 chars omitted)
                            child 0, slot: int64
                            child 1, label: string
                            child 2, mask_path: string
                            child 3, confidence: double
                            child 4, area: int64
                            child 5, bbox: list<item: double>
                                child 0, item: double
              to
              {'width': Value('int64'), 'height': Value('int64'), 'camera_angle_x': Value('float64'), 'source': Value('string'), 'source_type': Value('string'), 'split': Value('string'), 'slots': List({'slot': Value('int64'), 'label': Value('string')}), 'sam': {'model_type': Value('string'), 'checkpoint': Value('string'), 'device': Value('string'), 'points_per_side': Value('int64'), 'pred_iou_thresh': Value('float64'), 'stability_score_thresh': Value('float64'), 'min_area': Value('int64'), 'max_area_fraction': Value('float64'), 'max_masks_per_frame': Value('int64')}, 'frames': List({'name': Value('string'), 'image_path': Value('string'), 'transform_matrix': List(List(Value('float64'))), 'masks': List({'slot': Value('int64'), 'label': Value('string'), 'mask_path': Value('string'), 'confidence': Value('float64'), 'area': Value('int64'), 'bbox': List(Value('float64'))})}), 'split_manifest': {'source': Value('string'), 'kind': Value('string'), 'heldout_every': Value('int64'), 'heldout_offset': Value('int64'), 'source_frames': Value('int64'), 'frames': Value('int64')}}
              because column names don't match

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Development-stage release / 开发阶段发布。 This Hugging Face repository is currently used for ObjGauss development, verification, and reproducibility handoff. Assets, file layout, metrics, model weights, and documentation may change before a stable release.

ObjGauss NeRF Lego near-1M Trained Object-Aware Gaussian Asset

This dataset contains a local ObjGauss research artifact built from the NeRF Synthetic Lego scene with Nerfstudio Splatfacto and ObjGauss Object Field mask-vote training.

It is intended for open research download and reproducibility, not for commercial demonstration. The upstream scene comes from the NeRF Synthetic Lego example data, so downstream use must respect the upstream dataset terms.

Contents

  • gaussians/gaussians.splat: compact Spark/Splat viewer asset for quick visual loading.
  • gaussians/object_aware_gaussians.ply: object-aware Gaussian PLY with object_id.
  • object_field/object_field_initial.npz: initialized Object Field logits.
  • object_field/object_field_trained.npz: SAM mask-vote trained Object Field logits.
  • masks/: SAM mask manifests and .npy masks used for Object Field supervision.
  • manifests/training-output-manifest.json: ObjGauss registration manifest.
  • manifests/mask-training-summary.json: mask-vote training summary.
  • metrics/: emergence metrics, curve outputs, and current WebGPU production SLA summary.
  • checksums.sha256: SHA256 checksums for uploaded release files.

The intentionally omitted file is gaussians.ply without object_id, because it duplicates the 1.1GB object-aware PLY for this release. The full Nerfstudio checkpoint is published in the companion model repository.

Key Facts

  • Scene: NeRF Synthetic Lego
  • Trainer: Nerfstudio Splatfacto
  • ObjGauss asset id: nerf-lego-splatfacto-near1m-random1300k-v1-candidate
  • Exported Gaussian count: 4,503,634
  • Object-aware Gaussian count: 4,503,634
  • Object Field slots: 4
  • Supervised Gaussians: 632,522
  • Mask-vote final loss: 0.069276
  • Object emergence score: 0.846996

Usage

For quick visual inspection, load:

gaussians/gaussians.splat

For ObjGauss object editing and analysis, use:

gaussians/object_aware_gaussians.ply
object_field/object_field_trained.npz
manifests/training-output-manifest.json

ObjGauss local viewer support in this release uses .splat for fast first view and delays loading the large object-aware PLY until object editing is requested.

Current Limitations

  • This is a research artifact derived from NeRF Synthetic Lego.
  • Object labels are produced by ObjGauss Object Field training with SAM mask voting, not by human semantic annotation.
  • The near-1M scale gate passed, but the current audit:webgpu-cpath-production-sla summary is included as failed. The failure is an audit/runtime path issue in the WebGPU presentation transition check, not absence of the trained object-aware PLY.
  • The generated object assignment should be treated as diagnostic/research evidence, not a production-ready semantic segmentation benchmark.

Companion Repositories

  • Model checkpoint: jianyong365/objgauss-nerf-lego-near1m-model
  • Source code: https://github.com/sessgraph/ObjGauss
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