alicevision / alicevision/AliceVision

[Question] How to augment a reconstruction with external SfM data via CLI

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Dominant language
C++
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Description

Objective

My goal is to expand a previously completed Meshroom 3D model (from Project A) by automatically adding new photos via the Command-Line Interface (CLI) in a separate project (Project B).

Current Issue

Although the logic for the CLI script is complete, the pipeline consistently fails at the FeatureMatching node with a persistent Invalid regions error. At this point, the problem appears to be not with the pipeline's logic, but with the provided absolute paths to the original data (e.g., typos, file permissions) or a data integrity problem (e.g., a mismatch between the SfM file and the feature set).

Does anyone have ideas or suggestions for what I might be overlooking?

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

Start with the CLI script and the FeatureMatching node configuration described in the issue. Check the provided absolute paths, permissions, the SfM file, and the feature set; done means identifying the cause of the Invalid regions error or documenting the missing information needed to reproduce it.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
cli, computer-vision
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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