Computation time for matches

[Aladgit]

Trying to match roughly 9500 images with their features - Any idea how long that will take as there is no information or progress bar in OpenSfM provided. Thanks in advance

[fabianschenk]

Hi @Aladgit ,

This depends on your hardware, the number of threads, the feature type, the resolution of the images etc., so really hard to make any prediction. The maximum number I've ever tried was around 700 and this took hours.

The best way would be to split the dataset into smaller ones as described here.

Best, Fabian

[Aladgit]

Hi @fabianschenk,

thanks for the quick answer - I'm actually following the steps described in the link which you just mentioned.

Right now I am executing step 3 out of 4 (marked in blue, in the screenshot above) and it's been running for almost a whole day by now ^^'

[Aladgit]

A quick overview of my specs: (GPU: Nvidia P4000) I wish I would know how to make that predicition but it's, frankly written, my first time working with OpenSfM and matching features.

[WangYu0611]

我的规格的快速概述： （GPU：Nvidia P4000） 我希望我知道如何做出该预测，但坦率地说，这是我第一次使用 OpenSfM 和匹配功能。

GPU computing is currently not supported for SFM, at least from my observations.