Papers › Unsupervised Domain Adaptation through Inter-modal Rotation for RGB-D Object Recognition

Unsupervised Domain Adaptation through Inter-modal Rotation for RGB-D Object Recognition

21 Apr 2020arXiv:2004.10016archive 2025-07-28

Mohammad Reza Loghmani, Luca Robbiano, Mirco Planamente, Kiru Park, Barbara Caputo, Markus Vincze

Unsupervised Domain Adaptation (DA) exploits the supervision of a label-rich source dataset to make predictions on an unlabeled target dataset by aligning the two data distributions. In robotics, DA is used to take advantage of automatically generated synthetic data, that come with "free" annotation, to make effective predictions on real data. However, existing DA methods are not designed to cope with the multi-modal nature of RGB-D data, which are widely used in robotic vision. We propose a novel RGB-D DA method that reduces the synthetic-to-real domain shift by exploiting the inter-modal relation between the RGB and depth image. Our method consists of training a convolutional neural network to solve, in addition to the main recognition task, the pretext task of predicting the relative rotation between the RGB and depth image. To evaluate our method and encourage further research in this area, we define two benchmark datasets for object categorization and instance recognition. With extensive experiments, we show the benefits of leveraging the inter-modal relations for RGB-D DA.

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Code

Syntology Ran 5 of 10 code samples harvested from 2 repositories linked to this paper; 5 have no recorded run. Of those that ran: 1 ran · honoured contract; 1 ran · violated contract; 2 ran · our draft was wrong; 1 ran with no contract checked.

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MRLoghmani/relative-rotation mentioned on GitHubpytorchMIT report
sigeek/mldl-rgbd-da mentioned on GitHubpytorch report
sigeek/rgbd-da-project mentioned on GitHubpytorchGPL-3.0 report

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10 samples harvested; 5 ran; 1 honoured the contract we drafted; 5 have no recorded run. Read from Syntology's graph 2026-09-24; that is when this build read the record, not when the samples ran.

1ran · honoured contract
1ran · violated contract
2ran · our draft was wrong
1ran
5unverified

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is_image_file MRLoghmani/relative-rotation/code/data_loader.py community (archive-listed) ran · violated contract MIT (permissive) · ab4109634b75ef8b · report
load_image MRLoghmani/relative-rotation/code/data_loader.py community (archive-listed) ran MIT (permissive) · 989269e62e59af83 · report
Demp18 sigeek/mldl-rgbd-da/Demp.py community (archive-listed) unverified GPL-3.0 (copyleft) · pointer only · 9499c99de31b880f · report
entropy_loss MRLoghmani/relative-rotation/code/utils.py community (archive-listed) unverified MIT (permissive) · 2b7cf311ed8497dd · report
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map_to_device MRLoghmani/relative-rotation/code/utils.py community (archive-listed) unverified MIT (permissive) · d0a3459bdbce6555 · report
conv1x1 identical code first harvested elsewhere ran · our draft was wrong licence of this copy not recorded · d9def42110729a85 · report
conv3x3 identical code first harvested elsewhere ran · our draft was wrong licence of this copy not recorded · 160bb14bd76201b4 · report
pil_loader identical code first harvested elsewhere ran · honoured contract licence of this copy not recorded · f321f54723433661 · report

Tasks

Domain AdaptationObject CategorizationObject RecognitionUnsupervised Domain Adaptation

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