@seclink: Quality Check (QC): - Geometric Consistency: Whether the hand pose intersects with the object surface and whether the hand-object distance is reasonable. - Temporal Consistency: Whether the hand pose sequence is jittering/jumping (detected using optical flow + tracking smoothing). - Multimodal Cross-Validation: Whether the gaze fixation point is consistent with the manipulated object. Due to the above technical difficulties…
Summary
This article discusses the technical challenges of quality control (QC) in synthetic videos, including geometric consistency, temporal consistency, and multimodal cross-validation, which make synthetic videos prone to visible flaws.
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Quality Control (QC):
- Geometric Consistency: Checking for hand-object surface penetration and ensuring the hand-to-object distance is reasonable.
- Temporal Consistency: Ensuring the hand pose sequence does not exhibit jitter or sudden jumps (using optical flow and tracking-based smoothness detection).
- Multimodal Cross-Validation: Verifying that the gaze direction aligns with the object being manipulated.
Due to these technical challenges, videos generated using synthesis techniques often look obviously fake at first glance…
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