OpenImagingLab / OpenImagingLab/FlashVSR

Reproduction issue of stage 2.

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Dominant language
Python
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Description

Hi, authors of FlashVSR. Thanks for contributing so excellent work for the community.

But I still meet some problems when using it on some extremely bad cases, So I would like to fine-tune it.

And thus I am trying to reproduce the training code, but I got some problems during reproducing stage 2, and I hope you can share some details about that:

  1. LR_proj module is converted into Causal one for only inference or both inference and training?
  2. generate_draft_block_mask in wan_video_dit.py is only for inference? As it can be derivable. Do you use other mask strategy during your training?

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
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Research direction

Start by reading wan_video_dit.py and tracing LR_proj and generate_draft_block_mask through the stage 2 training and inference paths. Compare the available reproduction code with the reported questions; done would mean establishing the training behavior and documenting the missing details needed to reproduce stage 2.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
computer-vision, machine-learning
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
25/100

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