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README.md
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---
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# Pyramidal Spectrum
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### Frequency-based Hierarchically Vector Quantized VAE for Videos
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**Official Implementation — WACV 2026**
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This repository provides the **official implementation** of the paper:
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**Pyramidal Spectrum: Frequency-based Hierarchically Vector Quantized VAE for Videos**
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*Accepted at WACV 2026*
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We introduce a **new autoencoder trained on 4K-resolution video data**, featuring a **hierarchical frequency-based vector quantization** method.
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The model leverages a **pyramidal spectral representation** to produce high-fidelity video reconstructions with an efficient latent structure.
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---
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## 📦 Installation
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This implementation requires installing Diffusers from the custom branch:
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```bash
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pip install git+https://github.com/Onkarsus13/diffusers@MMVQVae
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```
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## 🚀 Features
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- Novel **hierarchical frequency-domain quantization**
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- Trained on **4K-resolution** video datasets
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- Multi-level **pyramidal spectral decomposition**
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- Highly efficient latent video representation
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- High-quality reconstructions suitable for generative pipelines
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---
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```
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@inproceedings{pyramidal_spectrum_wacv2026,
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title = {Pyramidal Spectrum: Frequency-based Hierarchically Vector Quantized VAE for Videos},
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author = {Tushar, Prakash and Onkar, Susladkar and Inderjit,
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Inderjit Dhillon and Sparsh Mittal},
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booktitle = {Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)},
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year = {2026}
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}
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```
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