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PCVE-RigidBench

Tasks:
Video-to-Video
Size:
n<1K
Tags:
physics
video-editing
benchmark
rigid-body
simulation
License:
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fix: PCVE stands for Physics Counterfactual Video Editing
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metadata 
license: mit
task_categories:
  - video-to-video
tags:
  - physics
  - video-editing
  - benchmark
  - rigid-body
  - simulation
pretty_name: PCVE-RigidBench
size_categories:
  - n<1K

PCVE-RigidBench

GitHub

Physics Counterfactual Video Editing benchmark. 20 scenes, 20 source videos, 129 edit tasks.

Layout

  • benchmark_manifest.json: flat index of every source + edit; the authoritative record. Every field the evaluator needs (prompts, physics_diff, edit_summary, video/gt paths) is inlined here.
  • scenes/{scene}/cases/{case_id}/:
    • video.mp4 -- the source (in the baseline case) or edited render.
    • prompts.json -- redundant with the top-level manifest; kept per-case so an evaluator that iterates directories has everything local.
    • ground_truth_transforms.json -- per-frame world matrices, linear/angular velocities and any object-specific quality metrics the physics sim produced. Use these for physics-consistency metrics; skip them if you are only doing pixel/perceptual eval.
  • thumbnails/{scene}/{case_id}.jpg: mid-frame preview per case.
  • splits/all.txt: every edit's global_id, one per line.
  • splits/by_property/: same, bucketed by the edited property (mass / friction / restitution / initial_velocity / presence for DELETE and ADD edits, which both move an object along the present/absent axis).
  • splits/by_timing/: same, bucketed by when the edit takes effect -- whole_clip.txt for edits that hold from the first frame, and partway.txt for edits that land at applies_from_frame, where the frames before it are supposed to match the source video exactly.

Prompts

Each edit has 4 flavors under prompts:

  • vague.zh / vague.en: direction-only ("调大一点" / "Decrease X").
  • quantitative.zh / quantitative.en: includes from and to numbers.

Every prompt opens by saying when the edit takes effect, because that is part of the instruction: "From frame 1 onwards" / "From the start of the clip" for the whole-clip edits, and "From frame 22 onwards" / "Early in the clip" for one that lands partway through. applies_from_frame in the manifest is the same fact in machine-readable form.

Task

Given (source_video, prompt), generate a video that matches edited_video. Compare against ground_truth_transforms.json for per-frame object trajectories, or against edited_video for pixel / perceptual metrics.

Counts

  • Edits by kind: {'ADD': 7, 'DELETE': 30, 'SET': 92}
  • Edits by timing: {'partway': 12, 'whole_clip': 117}
  • Edits by property: {'friction': 21, 'initial_velocity': 26, 'mass': 32, 'presence': 37, 'restitution': 13}