Restore 3 timed DELETE cases (126 -> 129 edits)

These three were dropped with the null-effect batch, but their trajectory metric collapsed for a fixable reason rather than a property of the case: the deleted object was excluded from both sides of the ratio, so failing to delete cost nothing and the denominator fell to tracker noise. The metric now charges a kept object its distance to the nearest frame edge on both sides, and scores a timed delete as a trajectory before the edit frame and a presence check after it, so these score normally. The other three stay out: their recorded transforms drop the object from frame 0 while the render removes it on schedule.

README.md

@@ -1,7 +1,7 @@
 # pcve_benchmark_v1
 
 Physics-Consistent Video Editing benchmark. 20 scenes,
-20 source videos, 126 edit tasks.
+20 source videos, 129 edit tasks.
 
 ## Layout
 - `benchmark_manifest.json`: flat index of every source + edit; the
@@ -44,6 +44,6 @@ per-frame object trajectories, or against `edited_video` for pixel /
 perceptual metrics.
 
 ## Counts
-- Edits by kind: {'ADD': 7, 'DELETE': 27, 'SET': 92}
+- Edits by kind: {'ADD': 7, 'DELETE': 30, 'SET': 92}
 - Edits by timing: {'partway': 15, 'whole_clip': 117}
 - Edits by property: {'friction': 21, 'initial_velocity': 26, 'mass': 32, 'presence': 40, 'restitution': 13}

benchmark_manifest.json

@@ -1567,6 +1567,49 @@
       "ground_truth": "scenes/ball_block/cases/edit_remove_block/ground_truth_transforms.json",
       "thumbnail": "thumbnails/ball_block/edit_remove_block.jpg"
     },
+    {
+      "global_id": "ball_block/edit_remove_block_after_impact",
+      "scene": "ball_block",
+      "case_id": "edit_remove_block_after_impact",
+      "source_case_id": "ball_block_baseline",
+      "source_video": "scenes/ball_block/cases/ball_block_baseline/video.mp4",
+      "edited_video": "scenes/ball_block/cases/edit_remove_block_after_impact/video.mp4",
+      "duration_sec": 4.0,
+      "prompts": {
+        "vague": {
+          "zh": "在视频前段,把木块从场景中删除。",
+          "en": "Early in the clip, remove the wooden block from the scene."
+        },
+        "quantitative": {
+          "zh": "从第 17 帧开始,把木块从场景中删除。",
+          "en": "From frame 17 onwards, remove the wooden block from the scene."
+        }
+      },
+      "edit_dsl": "DELETE wood_block AT FRAME 17",
+      "edit_kind": "DELETE",
+      "object_id": "wood_block",
+      "property": null,
+      "outcome_type": "object_removed",
+      "applies_from_frame": 17,
+      "timing": "partway",
+      "physics_diff": {
+        "wood_block": {
+          "from": "present",
+          "to": "removed"
+        },
+        "timing": {
+          "applies_from_frame": 17,
+          "total_frames": 96,
+          "unedited_frames": [
+            1,
+            16
+          ]
+        }
+      },
+      "edit_summary": "Block removed at frame 17, four frames after the ball strikes it at frame 13. Frames 1-16 are the source video frame for frame, impact included: the ball arrives at 4.5 m/s and is left with 0.8, and the block is already 0.40 m along and moving at 2.8 m/s when it disappears. The ball then coasts on at its post-impact speed exactly as in the source. The whole-clip version of the same delete (edit_remove_block) is a different video again: with nothing to hit, the ball never slows and ends 7 m further down the floor.",
+      "ground_truth": "scenes/ball_block/cases/edit_remove_block_after_impact/ground_truth_transforms.json",
+      "thumbnail": "thumbnails/ball_block/edit_remove_block_after_impact.jpg"
+    },
     {
       "global_id": "ball_box_rebound/edit_dead_ball",
       "scene": "ball_box_rebound",
@@ -1807,6 +1850,49 @@
       "ground_truth": "scenes/ball_box_rebound/cases/edit_remove_target/ground_truth_transforms.json",
       "thumbnail": "thumbnails/ball_box_rebound/edit_remove_target.jpg"
     },
+    {
+      "global_id": "ball_box_rebound/edit_remove_target_after_impact",
+      "scene": "ball_box_rebound",
+      "case_id": "edit_remove_target_after_impact",
+      "source_case_id": "ball_box_rebound_baseline",
+      "source_video": "scenes/ball_box_rebound/cases/ball_box_rebound_baseline/video.mp4",
+      "edited_video": "scenes/ball_box_rebound/cases/edit_remove_target_after_impact/video.mp4",
+      "duration_sec": 4.0,
+      "prompts": {
+        "vague": {
+          "zh": "在视频前段,把小足球从场景中删除。",
+          "en": "Early in the clip, remove the little football from the scene."
+        },
+        "quantitative": {
+          "zh": "从第 32 帧开始,把小足球从场景中删除。",
+          "en": "From frame 32 onwards, remove the little football from the scene."
+        }
+      },
+      "edit_dsl": "DELETE ball_b AT FRAME 32",
+      "edit_kind": "DELETE",
+      "object_id": "ball_b",
+      "property": null,
+      "outcome_type": "object_removed",
+      "applies_from_frame": 32,
+      "timing": "partway",
+      "physics_diff": {
+        "ball_b": {
+          "from": "present",
+          "to": "removed"
+        },
+        "timing": {
+          "applies_from_frame": 32,
+          "total_frames": 96,
+          "unedited_frames": [
+            1,
+            31
+          ]
+        }
+      },
+      "edit_summary": "Football removed at frame 32, eight frames after the star ball reaches it at frame 24. Frames 1-31 are the source video frame for frame: the star ball rebounds off the toy chest at frame 13, runs into the football and is left creeping at 0.07 m/s, and the football has been driven 0.18 m when it disappears. The star ball then settles at (+0.27, +0.62) exactly as in the source. The whole-clip version of the same delete is a different video again: with no football to hit, the star ball keeps 1.0 m/s off the rebound and coasts out to (+0.99, +1.39).",
+      "ground_truth": "scenes/ball_box_rebound/cases/edit_remove_target_after_impact/ground_truth_transforms.json",
+      "thumbnail": "thumbnails/ball_box_rebound/edit_remove_target_after_impact.jpg"
+    },
     {
       "global_id": "ball_carpet_climb/edit_grippy_ball",
       "scene": "ball_carpet_climb",
@@ -4300,6 +4386,49 @@
       "ground_truth": "scenes/picnic_apple_ball/cases/edit_remove_soccer_ball/ground_truth_transforms.json",
       "thumbnail": "thumbnails/picnic_apple_ball/edit_remove_soccer_ball.jpg"
     },
+    {
+      "global_id": "picnic_apple_ball/edit_remove_apple_after_impact",
+      "scene": "picnic_apple_ball",
+      "case_id": "edit_remove_apple_after_impact",
+      "source_case_id": "picnic_apple_ball_baseline",
+      "source_video": "scenes/picnic_apple_ball/cases/picnic_apple_ball_baseline/video.mp4",
+      "edited_video": "scenes/picnic_apple_ball/cases/edit_remove_apple_after_impact/video.mp4",
+      "duration_sec": 4.0,
+      "prompts": {
+        "vague": {
+          "zh": "在视频前段,把苹果从场景中删除。",
+          "en": "Early in the clip, remove the apple from the scene."
+        },
+        "quantitative": {
+          "zh": "从第 18 帧开始,把苹果从场景中删除。",
+          "en": "From frame 18 onwards, remove the apple from the scene."
+        }
+      },
+      "edit_dsl": "DELETE apple AT FRAME 18",
+      "edit_kind": "DELETE",
+      "object_id": "apple",
+      "property": null,
+      "outcome_type": "object_removed",
+      "applies_from_frame": 18,
+      "timing": "partway",
+      "physics_diff": {
+        "apple": {
+          "from": "present",
+          "to": "removed"
+        },
+        "timing": {
+          "applies_from_frame": 18,
+          "total_frames": 96,
+          "unedited_frames": [
+            1,
+            17
+          ]
+        }
+      },
+      "edit_summary": "Apple removed at frame 18, four frames after it reaches the soccer ball at frame 14. Frames 1-17 are the source video frame for frame, impact included: the ball is knocked back to 0.64 m/s and the apple is 0.28 m past its start when it disappears. The ball rolls on to x=-0.54 exactly as in the source, with nothing left on the grass to follow it. The whole-clip version of the same delete is a different video again: with no apple to arrive, the ball never moves at all.",
+      "ground_truth": "scenes/picnic_apple_ball/cases/edit_remove_apple_after_impact/ground_truth_transforms.json",
+      "thumbnail": "thumbnails/picnic_apple_ball/edit_remove_apple_after_impact.jpg"
+    },
     {
       "global_id": "pool_collision/edit_heavy_cue_ball",
       "scene": "pool_collision",

scenes/ball_block/cases/edit_remove_block_after_impact/prompts.json

@@ -0,0 +1,32 @@
+{
+  "schema_version": 2,
+  "case_id": "edit_remove_block_after_impact",
+  "source_case_id": "ball_block_baseline",
+  "edit_dsl": "DELETE wood_block AT FRAME 17",
+  "edit_summary": "Block removed at frame 17, four frames after the ball strikes it at frame 13. Frames 1-16 are the source video frame for frame, impact included: the ball arrives at 4.5 m/s and is left with 0.8, and the block is already 0.40 m along and moving at 2.8 m/s when it disappears. The ball then coasts on at its post-impact speed exactly as in the source. The whole-clip version of the same delete (edit_remove_block) is a different video again: with nothing to hit, the ball never slows and ends 7 m further down the floor.",
+  "applies_from_frame": 17,
+  "physics_diff": {
+    "wood_block": {
+      "from": "present",
+      "to": "removed"
+    },
+    "timing": {
+      "applies_from_frame": 17,
+      "total_frames": 96,
+      "unedited_frames": [
+        1,
+        16
+      ]
+    }
+  },
+  "prompts": {
+    "vague": {
+      "zh": "在视频前段,把木块从场景中删除。",
+      "en": "Early in the clip, remove the wooden block from the scene."
+    },
+    "quantitative": {
+      "zh": "从第 17 帧开始,把木块从场景中删除。",
+      "en": "From frame 17 onwards, remove the wooden block from the scene."
+    }
+  }
+}

scenes/ball_block/cases/edit_remove_block_after_impact/video.mp4

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:91722bf153a603a8c87098b3ba5d4e402c74061c8476f28433804224f37ee8e7
+size 662185

scenes/ball_box_rebound/cases/edit_remove_target_after_impact/prompts.json

@@ -0,0 +1,32 @@
+{
+  "schema_version": 2,
+  "case_id": "edit_remove_target_after_impact",
+  "source_case_id": "ball_box_rebound_baseline",
+  "edit_dsl": "DELETE ball_b AT FRAME 32",
+  "edit_summary": "Football removed at frame 32, eight frames after the star ball reaches it at frame 24. Frames 1-31 are the source video frame for frame: the star ball rebounds off the toy chest at frame 13, runs into the football and is left creeping at 0.07 m/s, and the football has been driven 0.18 m when it disappears. The star ball then settles at (+0.27, +0.62) exactly as in the source. The whole-clip version of the same delete is a different video again: with no football to hit, the star ball keeps 1.0 m/s off the rebound and coasts out to (+0.99, +1.39).",
+  "applies_from_frame": 32,
+  "physics_diff": {
+    "ball_b": {
+      "from": "present",
+      "to": "removed"
+    },
+    "timing": {
+      "applies_from_frame": 32,
+      "total_frames": 96,
+      "unedited_frames": [
+        1,
+        31
+      ]
+    }
+  },
+  "prompts": {
+    "vague": {
+      "zh": "在视频前段,把小足球从场景中删除。",
+      "en": "Early in the clip, remove the little football from the scene."
+    },
+    "quantitative": {
+      "zh": "从第 32 帧开始,把小足球从场景中删除。",
+      "en": "From frame 32 onwards, remove the little football from the scene."
+    }
+  }
+}

scenes/ball_box_rebound/cases/edit_remove_target_after_impact/video.mp4

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3cacd3b514c033ac18b34afb4bbf8fe1192092aa43ee994475a25c203be5e887
+size 434175

scenes/picnic_apple_ball/cases/edit_remove_apple_after_impact/prompts.json

@@ -0,0 +1,32 @@
+{
+  "schema_version": 2,
+  "case_id": "edit_remove_apple_after_impact",
+  "source_case_id": "picnic_apple_ball_baseline",
+  "edit_dsl": "DELETE apple AT FRAME 18",
+  "edit_summary": "Apple removed at frame 18, four frames after it reaches the soccer ball at frame 14. Frames 1-17 are the source video frame for frame, impact included: the ball is knocked back to 0.64 m/s and the apple is 0.28 m past its start when it disappears. The ball rolls on to x=-0.54 exactly as in the source, with nothing left on the grass to follow it. The whole-clip version of the same delete is a different video again: with no apple to arrive, the ball never moves at all.",
+  "applies_from_frame": 18,
+  "physics_diff": {
+    "apple": {
+      "from": "present",
+      "to": "removed"
+    },
+    "timing": {
+      "applies_from_frame": 18,
+      "total_frames": 96,
+      "unedited_frames": [
+        1,
+        17
+      ]
+    }
+  },
+  "prompts": {
+    "vague": {
+      "zh": "在视频前段,把苹果从场景中删除。",
+      "en": "Early in the clip, remove the apple from the scene."
+    },
+    "quantitative": {
+      "zh": "从第 18 帧开始,把苹果从场景中删除。",
+      "en": "From frame 18 onwards, remove the apple from the scene."
+    }
+  }
+}

scenes/picnic_apple_ball/cases/edit_remove_apple_after_impact/video.mp4

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:87a3f6a0300500f13ba99929b878aaee7b90a55c5f6ebe81aa7d2a962622eeac
+size 1411189

splits/all.txt

@@ -14,12 +14,14 @@ ball_block/edit_slow_ball
 ball_block/edit_grippy_block
 ball_block/edit_bouncy_block
 ball_block/edit_remove_block
+ball_block/edit_remove_block_after_impact
 ball_box_rebound/edit_dead_ball
 ball_box_rebound/edit_soft_push
 ball_box_rebound/edit_draggy_ball
 ball_box_rebound/edit_heavy_target
 ball_box_rebound/edit_heavy_ball
 ball_box_rebound/edit_remove_target
+ball_box_rebound/edit_remove_target_after_impact
 ball_carpet_climb/edit_grippy_ball
 ball_carpet_climb/edit_slippy_ball
 ball_carpet_climb/edit_soft_push
@@ -80,6 +82,7 @@ picnic_apple_ball/edit_grippy_soccer_ball
 picnic_apple_ball/edit_heavy_apple
 picnic_apple_ball/edit_remove_apple
 picnic_apple_ball/edit_remove_soccer_ball
+picnic_apple_ball/edit_remove_apple_after_impact
 pool_collision/edit_heavy_cue_ball
 pool_collision/edit_heavy_target_ball
 pool_collision/edit_hard_break

splits/by_property/presence.txt

@@ -3,7 +3,9 @@ air_hockey_chain/edit_remove_middle_mallet
 air_hockey_chain/edit_remove_last_mallet
 air_hockey_chain/edit_add_mallet_last_gap
 ball_block/edit_remove_block
+ball_block/edit_remove_block_after_impact
 ball_box_rebound/edit_remove_target
+ball_box_rebound/edit_remove_target_after_impact
 curling_collision/edit_add_stone_before_red
 curling_collision/edit_add_stone_centre
 curling_collision/edit_add_stone_before_yellow
@@ -19,6 +21,7 @@ mahjong_dice/edit_remove_red_die
 mahjong_dice/edit_remove_white_die
 picnic_apple_ball/edit_remove_apple
 picnic_apple_ball/edit_remove_soccer_ball
+picnic_apple_ball/edit_remove_apple_after_impact
 pool_collision/edit_remove_cue_ball
 pool_collision/edit_add_ball_near_cue
 pool_collision/edit_add_ball_midway

splits/by_timing/partway.txt

@@ -1,9 +1,12 @@
 air_hockey_chain/edit_remove_middle_mallet_mid_slide
+ball_block/edit_remove_block_after_impact
+ball_box_rebound/edit_remove_target_after_impact
 bouncing_ball/edit_dead_ball_after_first_bounce
 car_gap_jump/edit_grippy_wheels_mid_jump
 car_ramp_climb/edit_grippy_wheels_mid_climb
 dining_chain/edit_remove_cup_mid_slide
 domino_chain/edit_remove_domino_1_mid_fall
+picnic_apple_ball/edit_remove_apple_after_impact
 ramp_collision/edit_grippy_red_ball_mid_roll
 toy_car_ball/edit_remove_toy_ball_after_push
 twin_ramp_collision/edit_remove_purple_ball_after_impact