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README.md
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---
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license: apache-2.0
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tags:
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- video-understanding
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- fps-prediction
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- visual-chronometer
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- pulse-of-motion
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pipeline_tag: video-classification
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---
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# Visual Chronometer — Physical FPS Prediction
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Safetensors conversion of the [Visual Chronometer](https://github.com/taco-group/Pulse-of-Motion) model for predicting the **Physical Frame Rate (PhyFPS)** from video motion patterns.
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## Model Details
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- **Architecture:** 2+1D VAE encoder + attention-pooled probe + MLP regression head
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- **Training range:** 10–60 FPS
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- **Output:** `log(FPS)` — take `exp()` to get predicted PhyFPS
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- **Input:** 30-frame clips at 216×216 resolution, normalized to `[-1, 1]`
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- **Parameters:** ~170M (683 MB safetensors)
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## Format
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This repo provides the model in **safetensors** format, converted from the original PyTorch Lightning checkpoint.
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| File | Size | Format |
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|---|---|---|
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| `vc_common_10_60fps.safetensors` | 683 MB | safetensors |
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## Original
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- **Paper:** [Pulse of Motion](https://github.com/taco-group/Pulse-of-Motion)
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- **Original weights:** [xiangbog/Visual_Chronometer](https://huggingface.co/xiangbog/Visual_Chronometer)
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- **License:** Apache 2.0
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## Usage
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Used by [ComfyUI-FFMPEGA](https://github.com/AEmotionStudio/ComfyUI-FFMPEGA) as the `phyfps` no-LLM mode for automated video temporal quality assessment.
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