mapillary / mapillary/OpenSfM

Usage of the reconstruct_from_prior Function

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Dominant language
Python
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Description

Hi,

First of all, thank you for the amazing code and all your hard work on this project!

I have a question regarding the reconstruct_from_prior function. This function is not documented, and although I have read through the code, I am not confident in my understanding.

Is my understanding correct that this function reads an existing reconstruction and recalculates the points?
In what scenarios would recalculating the points be necessary?

My primary goal is to add new images to an existing reconstruction as mentioned in the this PR178
If there is an existing method for this, I would greatly appreciate your guidance.

Thank you for your time and assistance!

Contributor guide

Open the contributing guide

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.
  4. Open a pull request that references the issue number.

Research direction

Locate the Python implementation and entry point for reconstruct_from_prior, then read the linked PR178 for context about adding images to an existing reconstruction. Document what the function reads and recalculates, when recalculation is needed, and whether the project already provides a workflow for adding images.

Written by the indexing model from the issue text.

Assessment

Tech stack
opencv, python
Domain
computer-vision, documentation
Issue type
Documentation
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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