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README.md ADDED
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1
+ ---
2
+ license: other
3
+ license_name: shapenet-license
4
+ license_link: https://shapenet.org/terms
5
+ task_categories:
6
+ - other
7
+ tags:
8
+ - 3d
9
+ - sdf
10
+ - signed-distance-field
11
+ - shapenet
12
+ - point-cloud
13
+ - neural-fields
14
+ - implicit-neural-representation
15
+ pretty_name: ShapeNetSDF
16
+ size_categories:
17
+ - 100B<n<1T
18
+ configs:
19
+ - config_name: airplane
20
+ data_files:
21
+ - split: train
22
+ path: data/airplane/train-*.parquet
23
+ - split: val
24
+ path: data/airplane/val-*.parquet
25
+ - split: test
26
+ path: data/airplane/test-*.parquet
27
+ - config_name: bag
28
+ data_files:
29
+ - split: train
30
+ path: data/bag/train-*.parquet
31
+ - split: val
32
+ path: data/bag/val-*.parquet
33
+ - split: test
34
+ path: data/bag/test-*.parquet
35
+ - config_name: basket
36
+ data_files:
37
+ - split: train
38
+ path: data/basket/train-*.parquet
39
+ - split: val
40
+ path: data/basket/val-*.parquet
41
+ - split: test
42
+ path: data/basket/test-*.parquet
43
+ - config_name: bathtub
44
+ data_files:
45
+ - split: train
46
+ path: data/bathtub/train-*.parquet
47
+ - split: val
48
+ path: data/bathtub/val-*.parquet
49
+ - split: test
50
+ path: data/bathtub/test-*.parquet
51
+ - config_name: bed
52
+ data_files:
53
+ - split: train
54
+ path: data/bed/train-*.parquet
55
+ - split: val
56
+ path: data/bed/val-*.parquet
57
+ - split: test
58
+ path: data/bed/test-*.parquet
59
+ - config_name: bench
60
+ data_files:
61
+ - split: train
62
+ path: data/bench/train-*.parquet
63
+ - split: val
64
+ path: data/bench/val-*.parquet
65
+ - split: test
66
+ path: data/bench/test-*.parquet
67
+ - config_name: birdhouse
68
+ data_files:
69
+ - split: train
70
+ path: data/birdhouse/train-*.parquet
71
+ - split: val
72
+ path: data/birdhouse/val-*.parquet
73
+ - split: test
74
+ path: data/birdhouse/test-*.parquet
75
+ - config_name: bookshelf
76
+ data_files:
77
+ - split: train
78
+ path: data/bookshelf/train-*.parquet
79
+ - split: val
80
+ path: data/bookshelf/val-*.parquet
81
+ - split: test
82
+ path: data/bookshelf/test-*.parquet
83
+ - config_name: bottle
84
+ data_files:
85
+ - split: train
86
+ path: data/bottle/train-*.parquet
87
+ - split: val
88
+ path: data/bottle/val-*.parquet
89
+ - split: test
90
+ path: data/bottle/test-*.parquet
91
+ - config_name: bowl
92
+ data_files:
93
+ - split: train
94
+ path: data/bowl/train-*.parquet
95
+ - split: val
96
+ path: data/bowl/val-*.parquet
97
+ - split: test
98
+ path: data/bowl/test-*.parquet
99
+ - config_name: bus
100
+ data_files:
101
+ - split: train
102
+ path: data/bus/train-*.parquet
103
+ - split: val
104
+ path: data/bus/val-*.parquet
105
+ - split: test
106
+ path: data/bus/test-*.parquet
107
+ - config_name: cabinet
108
+ data_files:
109
+ - split: train
110
+ path: data/cabinet/train-*.parquet
111
+ - split: val
112
+ path: data/cabinet/val-*.parquet
113
+ - split: test
114
+ path: data/cabinet/test-*.parquet
115
+ - config_name: camera
116
+ data_files:
117
+ - split: train
118
+ path: data/camera/train-*.parquet
119
+ - split: val
120
+ path: data/camera/val-*.parquet
121
+ - split: test
122
+ path: data/camera/test-*.parquet
123
+ - config_name: can
124
+ data_files:
125
+ - split: train
126
+ path: data/can/train-*.parquet
127
+ - split: val
128
+ path: data/can/val-*.parquet
129
+ - split: test
130
+ path: data/can/test-*.parquet
131
+ - config_name: cap
132
+ data_files:
133
+ - split: train
134
+ path: data/cap/train-*.parquet
135
+ - split: val
136
+ path: data/cap/val-*.parquet
137
+ - split: test
138
+ path: data/cap/test-*.parquet
139
+ - config_name: car
140
+ data_files:
141
+ - split: train
142
+ path: data/car/train-*.parquet
143
+ - split: val
144
+ path: data/car/val-*.parquet
145
+ - split: test
146
+ path: data/car/test-*.parquet
147
+ - config_name: chair
148
+ data_files:
149
+ - split: train
150
+ path: data/chair/train-*.parquet
151
+ - split: val
152
+ path: data/chair/val-*.parquet
153
+ - split: test
154
+ path: data/chair/test-*.parquet
155
+ - config_name: dishwasher
156
+ data_files:
157
+ - split: train
158
+ path: data/dishwasher/train-*.parquet
159
+ - split: val
160
+ path: data/dishwasher/val-*.parquet
161
+ - split: test
162
+ path: data/dishwasher/test-*.parquet
163
+ - config_name: display
164
+ data_files:
165
+ - split: train
166
+ path: data/display/train-*.parquet
167
+ - split: val
168
+ path: data/display/val-*.parquet
169
+ - split: test
170
+ path: data/display/test-*.parquet
171
+ - config_name: earphone
172
+ data_files:
173
+ - split: train
174
+ path: data/earphone/train-*.parquet
175
+ - split: val
176
+ path: data/earphone/val-*.parquet
177
+ - split: test
178
+ path: data/earphone/test-*.parquet
179
+ - config_name: faucet
180
+ data_files:
181
+ - split: train
182
+ path: data/faucet/train-*.parquet
183
+ - split: val
184
+ path: data/faucet/val-*.parquet
185
+ - split: test
186
+ path: data/faucet/test-*.parquet
187
+ - config_name: file_cabinet
188
+ data_files:
189
+ - split: train
190
+ path: data/file_cabinet/train-*.parquet
191
+ - split: val
192
+ path: data/file_cabinet/val-*.parquet
193
+ - split: test
194
+ path: data/file_cabinet/test-*.parquet
195
+ - config_name: guitar
196
+ data_files:
197
+ - split: train
198
+ path: data/guitar/train-*.parquet
199
+ - split: val
200
+ path: data/guitar/val-*.parquet
201
+ - split: test
202
+ path: data/guitar/test-*.parquet
203
+ - config_name: jar
204
+ data_files:
205
+ - split: train
206
+ path: data/jar/train-*.parquet
207
+ - split: val
208
+ path: data/jar/val-*.parquet
209
+ - split: test
210
+ path: data/jar/test-*.parquet
211
+ - config_name: keyboard
212
+ data_files:
213
+ - split: train
214
+ path: data/keyboard/train-*.parquet
215
+ - split: val
216
+ path: data/keyboard/val-*.parquet
217
+ - split: test
218
+ path: data/keyboard/test-*.parquet
219
+ - config_name: knife
220
+ data_files:
221
+ - split: train
222
+ path: data/knife/train-*.parquet
223
+ - split: val
224
+ path: data/knife/val-*.parquet
225
+ - split: test
226
+ path: data/knife/test-*.parquet
227
+ - config_name: lamp
228
+ data_files:
229
+ - split: train
230
+ path: data/lamp/train-*.parquet
231
+ - split: val
232
+ path: data/lamp/val-*.parquet
233
+ - split: test
234
+ path: data/lamp/test-*.parquet
235
+ - config_name: laptop
236
+ data_files:
237
+ - split: train
238
+ path: data/laptop/train-*.parquet
239
+ - split: val
240
+ path: data/laptop/val-*.parquet
241
+ - split: test
242
+ path: data/laptop/test-*.parquet
243
+ - config_name: loudspeaker
244
+ data_files:
245
+ - split: train
246
+ path: data/loudspeaker/train-*.parquet
247
+ - split: val
248
+ path: data/loudspeaker/val-*.parquet
249
+ - split: test
250
+ path: data/loudspeaker/test-*.parquet
251
+ - config_name: mailbox
252
+ data_files:
253
+ - split: train
254
+ path: data/mailbox/train-*.parquet
255
+ - split: val
256
+ path: data/mailbox/val-*.parquet
257
+ - split: test
258
+ path: data/mailbox/test-*.parquet
259
+ - config_name: microphone
260
+ data_files:
261
+ - split: train
262
+ path: data/microphone/train-*.parquet
263
+ - split: val
264
+ path: data/microphone/val-*.parquet
265
+ - split: test
266
+ path: data/microphone/test-*.parquet
267
+ - config_name: motorbike
268
+ data_files:
269
+ - split: train
270
+ path: data/motorbike/train-*.parquet
271
+ - split: val
272
+ path: data/motorbike/val-*.parquet
273
+ - split: test
274
+ path: data/motorbike/test-*.parquet
275
+ - config_name: mug
276
+ data_files:
277
+ - split: train
278
+ path: data/mug/train-*.parquet
279
+ - split: val
280
+ path: data/mug/val-*.parquet
281
+ - split: test
282
+ path: data/mug/test-*.parquet
283
+ - config_name: piano
284
+ data_files:
285
+ - split: train
286
+ path: data/piano/train-*.parquet
287
+ - split: val
288
+ path: data/piano/val-*.parquet
289
+ - split: test
290
+ path: data/piano/test-*.parquet
291
+ - config_name: pillow
292
+ data_files:
293
+ - split: train
294
+ path: data/pillow/train-*.parquet
295
+ - split: val
296
+ path: data/pillow/val-*.parquet
297
+ - split: test
298
+ path: data/pillow/test-*.parquet
299
+ - config_name: pistol
300
+ data_files:
301
+ - split: train
302
+ path: data/pistol/train-*.parquet
303
+ - split: val
304
+ path: data/pistol/val-*.parquet
305
+ - split: test
306
+ path: data/pistol/test-*.parquet
307
+ - config_name: printer
308
+ data_files:
309
+ - split: train
310
+ path: data/printer/train-*.parquet
311
+ - split: val
312
+ path: data/printer/val-*.parquet
313
+ - split: test
314
+ path: data/printer/test-*.parquet
315
+ - config_name: remote
316
+ data_files:
317
+ - split: train
318
+ path: data/remote/train-*.parquet
319
+ - split: val
320
+ path: data/remote/val-*.parquet
321
+ - split: test
322
+ path: data/remote/test-*.parquet
323
+ - config_name: rifle
324
+ data_files:
325
+ - split: train
326
+ path: data/rifle/train-*.parquet
327
+ - split: val
328
+ path: data/rifle/val-*.parquet
329
+ - split: test
330
+ path: data/rifle/test-*.parquet
331
+ - config_name: rocket
332
+ data_files:
333
+ - split: train
334
+ path: data/rocket/train-*.parquet
335
+ - split: val
336
+ path: data/rocket/val-*.parquet
337
+ - split: test
338
+ path: data/rocket/test-*.parquet
339
+ - config_name: skateboard
340
+ data_files:
341
+ - split: train
342
+ path: data/skateboard/train-*.parquet
343
+ - split: val
344
+ path: data/skateboard/val-*.parquet
345
+ - split: test
346
+ path: data/skateboard/test-*.parquet
347
+ - config_name: sofa
348
+ data_files:
349
+ - split: train
350
+ path: data/sofa/train-*.parquet
351
+ - split: val
352
+ path: data/sofa/val-*.parquet
353
+ - split: test
354
+ path: data/sofa/test-*.parquet
355
+ - config_name: stove
356
+ data_files:
357
+ - split: train
358
+ path: data/stove/train-*.parquet
359
+ - split: val
360
+ path: data/stove/val-*.parquet
361
+ - split: test
362
+ path: data/stove/test-*.parquet
363
+ - config_name: table
364
+ data_files:
365
+ - split: train
366
+ path: data/table/train-*.parquet
367
+ - split: val
368
+ path: data/table/val-*.parquet
369
+ - split: test
370
+ path: data/table/test-*.parquet
371
+ - config_name: telephone
372
+ data_files:
373
+ - split: train
374
+ path: data/telephone/train-*.parquet
375
+ - split: val
376
+ path: data/telephone/val-*.parquet
377
+ - split: test
378
+ path: data/telephone/test-*.parquet
379
+ - config_name: tower
380
+ data_files:
381
+ - split: train
382
+ path: data/tower/train-*.parquet
383
+ - split: val
384
+ path: data/tower/val-*.parquet
385
+ - split: test
386
+ path: data/tower/test-*.parquet
387
+ - config_name: train
388
+ data_files:
389
+ - split: train
390
+ path: data/train/train-*.parquet
391
+ - split: val
392
+ path: data/train/val-*.parquet
393
+ - split: test
394
+ path: data/train/test-*.parquet
395
+ - config_name: trash_bin
396
+ data_files:
397
+ - split: train
398
+ path: data/trash_bin/train-*.parquet
399
+ - split: val
400
+ path: data/trash_bin/val-*.parquet
401
+ - split: test
402
+ path: data/trash_bin/test-*.parquet
403
+ - config_name: washer
404
+ data_files:
405
+ - split: train
406
+ path: data/washer/train-*.parquet
407
+ - split: val
408
+ path: data/washer/val-*.parquet
409
+ - split: test
410
+ path: data/washer/test-*.parquet
411
+ - config_name: watercraft
412
+ data_files:
413
+ - split: train
414
+ path: data/watercraft/train-*.parquet
415
+ - split: val
416
+ path: data/watercraft/val-*.parquet
417
+ - split: test
418
+ path: data/watercraft/test-*.parquet
419
+ - config_name: all
420
+ data_files:
421
+ - split: train
422
+ path: data/*/train-*.parquet
423
+ - split: val
424
+ path: data/*/val-*.parquet
425
+ - split: test
426
+ path: data/*/test-*.parquet
427
+ ---
428
+
429
+ # ShapeNetSDF
430
+
431
+ Signed Distance Field (SDF) point samples derived from
432
+ [ShapeNet Core](https://shapenet.org), for training and evaluating implicit
433
+ neural representations / neural fields on 3D shapes.
434
+
435
+ Each shape is converted into a watertight manifold, normalized into the unit
436
+ cube `[-1, 1]³`, and sampled into three point sets (`uniform`, `surface`,
437
+ `groundtruth`), each stored as a `[N, 4]` `float32` array of `[x, y, z, sdf]`.
438
+
439
+ This dataset is produced by `process_shapenet_to_sdf.py` from the
440
+ [wsr.pytorch](https://github.com/IVRL/wsr.pytorch) neural-field codebase.
441
+
442
+ ## Dataset structure
443
+
444
+ The dataset is stored as **sharded Parquet** (one config per category, with
445
+ `train` / `val` / `test` splits). Each row is one shape; the three point sets
446
+ (`uniform`, `surface`, `groundtruth`) are stored as fixed-shape `[262144, 4]`
447
+ float32 tensors in their own columns.
448
+
449
+ ```
450
+ ShapeNetSDF/
451
+ ├── data/ # heavy data: sharded parquet, one folder per category
452
+ │ └── <category>/ # 50 category configs (chair, table, airplane, ...)
453
+ │ ├── train-NNNNN-of-NNNNN.parquet # rows: model_id, uniform, surface, groundtruth
454
+ │ ├── val-NNNNN-of-NNNNN.parquet
455
+ │ └── test-NNNNN-of-NNNNN.parquet
456
+ ├── meta/ # lightweight metadata (split id lists, labels, subsets)
457
+ │ ├── <category>/ # per-category split id lists
458
+ │ │ └── train.txt / val.txt / test.txt
459
+ │ └── all/ # global splits + curated subsets + labels
460
+ │ ├── train.txt / val.txt / test.txt # global splits (all categories)
461
+ │ ├── 10k10c.txt / 5k10c.txt / 5k5c.txt / 100_5c.txt # curated subsets (model-id lists)
462
+ │ └── labels.json # category ↔ model_id mappings
463
+ └── README.md
464
+ ```
465
+
466
+ - Each Parquet **row** has columns `model_id` (string) and `uniform` /
467
+ `surface` / `groundtruth`, each an `Array2D[262144, 4]` float32 tensor
468
+ (`[x, y, z, sdf]` per point — see *File format* below).
469
+ - The `all` config globs every category's Parquet, so
470
+ `load_dataset(..., "all")` streams all 50 categories together. The split id
471
+ lists under `meta/` (and curated subsets) remain for selecting specific model ids.
472
+
473
+ - **50 categories**: `airplane, bag, basket, bathtub, bed, bench, birdhouse,
474
+ bookshelf, bottle, bowl, bus, cabinet, camera, can, cap, car, chair,
475
+ dishwasher, display, earphone, faucet, file_cabinet, guitar, jar, keyboard,
476
+ knife, lamp, laptop, loudspeaker, mailbox, microphone, motorbike, mug, piano,
477
+ pillow, pistol, printer, remote, rifle, rocket, skateboard, sofa, stove,
478
+ table, telephone, tower, train, trash_bin, washer, watercraft` (plus the
479
+ aggregated `all/` folder).
480
+ - **Total size**: ~512 GB.
481
+
482
+ ### File format
483
+
484
+ Each point set (`uniform` / `surface` / `groundtruth`) is a `float32` array of
485
+ shape `[262144, 4]`:
486
+
487
+ | column | meaning | range |
488
+ | ------ | ------- | ----- |
489
+ | 0 (`x`) | x coordinate | `[-1, 1]` |
490
+ | 1 (`y`) | y coordinate | `[-1, 1]` |
491
+ | 2 (`z`) | z coordinate | `[-1, 1]` |
492
+ | 3 (`sdf`) | signed distance to the surface | negative inside, positive outside |
493
+
494
+ - **`uniform`** — `N = 64³ = 262,144` points sampled uniformly in `[-1, 1]³`,
495
+ with their exact signed distance. Use these to supervise the field in free
496
+ space.
497
+ - **`surface`** — points sampled on the mesh surface with a small Gaussian
498
+ perturbation (noise scale ≈ `0.02`), so SDF values are close to (but not
499
+ exactly) zero. Intended for training near the surface.
500
+ - **`groundtruth`** — exact on-surface points (SDF ≈ `0`), with no noise.
501
+ Intended for evaluation (e.g. surface reconstruction / Chamfer / IoU).
502
+
503
+ ### Splits
504
+
505
+ Each category config has `train` / `val` / `test` splits (~80% / 10% / 10%,
506
+ seed `42`), encoded as the Parquet partitions. Plain-text `model_id` lists under
507
+ `meta/` remain for global splits and curated subsets:
508
+
509
+ - `meta/all/train.txt` / `val.txt` / `test.txt` — global splits over all categories
510
+ (per-category lists live in `meta/<category>/`).
511
+ - `meta/all/{10k10c,5k10c,5k5c,100_5c}.txt` — curated subsets
512
+ (`<num_models><num_categories>c`, e.g. `5k5c` = 5,000 models across 5
513
+ categories) for quick experiments. Filter the loaded dataset by `model_id`.
514
+ - `meta/all/labels.json` — `{"category_to_filename": {...}, "filename_to_category": {...}}`
515
+ mapping each category to its model ids and vice versa.
516
+
517
+ ## Usage
518
+
519
+ ```python
520
+ from datasets import load_dataset
521
+
522
+ # One category, one split. Array2D columns decode to numpy [262144, 4] arrays.
523
+ ds = load_dataset("EPFL-IVRL/ShapeNetSDF", "chair", split="train").with_format("numpy")
524
+ row = ds[0]
525
+ xyz, sdf = row["uniform"][:, :3], row["uniform"][:, 3] # [262144, 3], [262144]
526
+ # row also has "surface" and "groundtruth", same shape, plus "model_id".
527
+
528
+ # All categories together (streamed to avoid downloading everything at once):
529
+ ds_all = load_dataset("EPFL-IVRL/ShapeNetSDF", "all", split="train", streaming=True)
530
+ ```
531
+
532
+ Or download the Parquet files for a category locally:
533
+
534
+ ```python
535
+ from huggingface_hub import snapshot_download
536
+
537
+ snapshot_download(
538
+ repo_id="EPFL-IVRL/ShapeNetSDF",
539
+ repo_type="dataset",
540
+ allow_patterns=["data/chair/**", "meta/all/labels.json"],
541
+ local_dir="ShapeNetSDF",
542
+ )
543
+ ```
544
+
545
+ ## How it was created
546
+
547
+ For each ShapeNet Core model (`models/model_normalized.obj`):
548
+
549
+ 1. Convert the mesh to a watertight manifold (via `point_cloud_utils`).
550
+ 2. Normalize into the unit cube centered at the origin (scale `0.98` of the max
551
+ vertex distance).
552
+ 3. Sample `uniform`, `surface` (+noise), and `groundtruth` point sets.
553
+ 4. Compute the signed distance for every point and save as `[N, 4]` `float32`.
554
+
555
+ Processing is deterministic (per-`model_id` seeding), so results are
556
+ reproducible. See `neural_field/scripts/process_shapenet_to_sdf.py` for the full
557
+ pipeline and configuration.
558
+
559
+ ## License & citation
560
+
561
+ This dataset is created as part of the CVPR 2026 Paper "Weight Space Representation Learning
562
+ via Neural Field Adaptation".
563
+
564
+ ```bibtex
565
+ @inproceedings{yang2026wsr,
566
+ title = {Weight Space Representation Learning via Neural Field Adaptation},
567
+ author = {Yang, Zhuoqian and Salzmann, Mathieu and S{\"u}sstrunk, Sabine},
568
+ booktitle = {Proceedings of the IEEE/CVF Conference on
569
+ Computer Vision and Pattern Recognition (CVPR)},
570
+ year = {2026}
571
+ }
572
+ ```
573
+
574
+ This dataset is derived from **ShapeNet** and is subject to the
575
+ [ShapeNet terms of use](https://shapenet.org/terms). Use it for non-commercial
576
+ research only, and cite ShapeNet:
577
+
578
+ ```bibtex
579
+ @article{chang2015shapenet,
580
+ title = {ShapeNet: An Information-Rich 3D Model Repository},
581
+ author = {Chang, Angel X. and Funkhouser, Thomas and Guibas, Leonidas and
582
+ Hanrahan, Pat and Huang, Qixing and Li, Zimo and Savarese, Silvio
583
+ and Savva, Manolis and Song, Shuran and Su, Hao and Xiao, Jianxiong
584
+ and Yi, Li and Yu, Fisher},
585
+ journal = {arXiv preprint arXiv:1512.03012},
586
+ year = {2015}
587
+ }
588
+ ```
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