Datasets:

nvidia
/

video_to_data_challenge

@@ -15,7 +15,7 @@ the real object was.
 | Frames | 11,794 (127–421 per episode, mean 262) |
 | Rate | 20.25 fps nominal |
 | Tasks | 16 |
-| Cameras | 6 streams, 270 clips |
 | Objects | 11, each with a textured mesh |
 ## Layout
@@ -24,11 +24,11 @@ the real object was.
 track_3/
 ├── confidential_SPLIT.txt                                split definition and conventions
 ├── public/                                   public subset
-│   ├── data/ and videos/                    trajectories and six camera streams
 │   ├── mesh/ and urdf/                      public object assets
 │   └── meta/                                public metadata and calibration
 └── confidential_holdout/                                 evaluation subset
-    ├── data/ and videos/                    trajectories and six camera streams
     ├── mesh/ and urdf/                      all required holdout assets
     └── meta/                                holdout metadata and calibration
@@ -68,17 +68,14 @@ An object's `name` **is** its mesh folder: `white_pot` → `mesh/white_pot/white
 | Stream | Resolution | Kind |
 |---|---|---|
-| `exo_cam_a` | 2028×1520 | colour, static third-person |
-| `exo_cam_b`, `exo_cam_c` | 1280×800 | mono stereo pair, 75 mm baseline |
 | `ego_cam_a` | 2028×1520 | colour, head-mounted |
 | `ego_cam_b`, `ego_cam_c` | 1280×800 | mono stereo pair, 75 mm baseline |
 Video is **frame-exact with the parquets** — row *i* corresponds to frame *i* in every
-clip, verified across all 276.
-`meta/camera_calibration.json` has intrinsics, distortion, and intra-rig stereo extrinsics.
 It has **no camera-to-mocap-world extrinsic**, so meshes cannot be projected into the
-images without solving that first. The exo camera is static across the whole session, so
-one pose would serve all episodes; the ego camera moves per frame.
-The two rigs are not hardware-synchronised: mean cross-device skew is 7.39 ms (~0.15 frame).

 | Frames | 11,794 (127–421 per episode, mean 262) |
 | Rate | 20.25 fps nominal |
 | Tasks | 16 |
+| Cameras | 3 ego streams, 135 clips |
 | Objects | 11, each with a textured mesh |
 ## Layout
 track_3/
 ├── confidential_SPLIT.txt                                split definition and conventions
 ├── public/                                   public subset
+│   ├── data/ and videos/                    trajectories and three ego streams
 │   ├── mesh/ and urdf/                      public object assets
 │   └── meta/                                public metadata and calibration
 └── confidential_holdout/                                 evaluation subset
+    ├── data/ and videos/                    trajectories and three ego streams
     ├── mesh/ and urdf/                      all required holdout assets
     └── meta/                                holdout metadata and calibration
 | Stream | Resolution | Kind |
 |---|---|---|
 | `ego_cam_a` | 2028×1520 | colour, head-mounted |
 | `ego_cam_b`, `ego_cam_c` | 1280×800 | mono stereo pair, 75 mm baseline |
 Video is **frame-exact with the parquets** — row *i* corresponds to frame *i* in every
+clip, verified across all 135 ego clips.
+Only the ego streams are distributed in this repository. The exocentric clips were
+intentionally moved to a separate backup. `meta/camera_calibration.json` retains
+calibration for both originally captured rigs, including the backed-up exo streams.
 It has **no camera-to-mocap-world extrinsic**, so meshes cannot be projected into the
+images without solving that first.

track_3/confidential_SPLIT.txt CHANGED Viewed

@@ -10,14 +10,14 @@ Split summary
 Public (track_3/public):
   Episodes: 20
   Frames: 5,246
-  Videos: 120 (20 episodes x 6 cameras)
   Episode IDs: 0, 2, 11, 12, 13, 18, 21, 22, 23, 24, 26, 27, 31,
                39, 40, 41, 42, 43, 44, 45
 Holdout (track_3/confidential_holdout):
   Episodes: 25
   Frames: 6,548
-  Videos: 150 (25 episodes x 6 cameras)
   Episode IDs: 1, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 19, 20,
                25, 28, 30, 32, 33, 34, 35, 36, 37, 38

 Public (track_3/public):
   Episodes: 20
   Frames: 5,246
+  Videos: 60 (20 episodes x 3 ego cameras)
   Episode IDs: 0, 2, 11, 12, 13, 18, 21, 22, 23, 24, 26, 27, 31,
                39, 40, 41, 42, 43, 44, 45
 Holdout (track_3/confidential_holdout):
   Episodes: 25
   Frames: 6,548
+  Videos: 75 (25 episodes x 3 ego cameras)
   Episode IDs: 1, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 19, 20,
                25, 28, 30, 32, 33, 34, 35, 36, 37, 38

track_3/confidential_holdout/meta/info.json CHANGED Viewed

@@ -6,7 +6,7 @@
     "total_episodes": 25,
     "total_frames": 6548,
     "total_tasks": 16,
-    "total_videos": 150,
     "total_chunks": 1,
     "fps": 20.25411910142744,
     "splits": {
@@ -55,45 +55,6 @@
                 "channel"
             ]
         },
-        "observation.images.exo_cam_a": {
-            "dtype": "video",
-            "shape": [
-                1520,
-                2028,
-                3
-            ],
-            "names": [
-                "height",
-                "width",
-                "channel"
-            ]
-        },
-        "observation.images.exo_cam_b": {
-            "dtype": "video",
-            "shape": [
-                800,
-                1280,
-                3
-            ],
-            "names": [
-                "height",
-                "width",
-                "channel"
-            ]
-        },
-        "observation.images.exo_cam_c": {
-            "dtype": "video",
-            "shape": [
-                800,
-                1280,
-                3
-            ],
-            "names": [
-                "height",
-                "width",
-                "channel"
-            ]
-        },
         "observation.objects": {
             "dtype": "list",
             "shape": [
@@ -245,9 +206,6 @@
     "camera_sockets": [
         "ego_cam_a",
         "ego_cam_b",
-        "ego_cam_c",
-        "exo_cam_a",
-        "exo_cam_b",
-        "exo_cam_c"
     ]
 }

     "total_episodes": 25,
     "total_frames": 6548,
     "total_tasks": 16,
+    "total_videos": 75,
     "total_chunks": 1,
     "fps": 20.25411910142744,
     "splits": {
                 "channel"
             ]
         },
         "observation.objects": {
             "dtype": "list",
             "shape": [
     "camera_sockets": [
         "ego_cam_a",
         "ego_cam_b",
+        "ego_cam_c"
     ]
 }

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