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Method

Object Concepts Emerge from Motion [OCEM]
https://tj12342.github.io/object-concepts-from-motion/

Submitted on 8 Sep. 2026 08:01 by
Boshi Li (BUPT)

Running time:0.1 s
Environment:1 core @ 2.5 Ghz (C/C++)

Method Description:
We use DCDepth for monocular depth estimation with
our motion-pretrained Swin-H encoder. The visual
backbone is pretrained with object-centric
supervision derived from motion and further
trained on 421M pseudo-labeled frames using
Motion-Verified Self-Training. At inference time,
the model predicts dense depth from a single RGB
image.
Parameters:
Swin-H backbone + DCDepth decoder; Cycle-2 OCEM
pretraining (421M frames)
Latex Bibtex:
@article{li2026object_arxiv,
title = {Object Concepts Emerge from Motion},
author = {Li, Boshi and Wang, Xiaohui and Wu,
Xiaoyang and Li, Zhichao and Yang, Ya and Wang,
Naiyan},
journal = {arXiv preprint arXiv:2609.04348},
year = {2026},
url = {https://arxiv.org/abs/2609.04348}
}

Detailed Results

This page provides detailed results for the method(s) selected. For the first 20 test images, the percentage of erroneous pixels is depicted in the table. We use the error metric described in Sparsity Invariant CNNs (THREEDV 2017), which considers a pixel to be correctly estimated if the disparity or flow end-point error is <3px or <5% (for scene flow this criterion needs to be fulfilled for both disparity maps and the flow map). Underneath, the left input image, the estimated results and the error maps are shown (for disp_0/disp_1/flow/scene_flow, respectively). The error map uses the log-color scale described in Sparsity Invariant CNNs (THREEDV 2017), depicting correct estimates (<3px or <5% error) in blue and wrong estimates in red color tones. Dark regions in the error images denote the occluded pixels which fall outside the image boundaries. The false color maps of the results are scaled to the largest ground truth disparity values / flow magnitudes.

Test Set Average

SILog sqErrorRel absErrorRel iRMSE
Error 7.91 1.02 6.36 8.53
This table as LaTeX

Test Image 0

SILog sqErrorRel absErrorRel iRMSE
Error 4.69 0.29 4.24 4.07
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 1

SILog sqErrorRel absErrorRel iRMSE
Error 9.53 1.18 6.01 9.56
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 2

SILog sqErrorRel absErrorRel iRMSE
Error 11.27 1.14 7.99 14.63
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 3

SILog sqErrorRel absErrorRel iRMSE
Error 5.43 0.51 5.50 6.83
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 4

SILog sqErrorRel absErrorRel iRMSE
Error 10.05 2.65 5.31 13.34
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 5

SILog sqErrorRel absErrorRel iRMSE
Error 10.08 1.42 8.47 18.41
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 6

SILog sqErrorRel absErrorRel iRMSE
Error 6.83 0.47 5.10 5.74
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 7

SILog sqErrorRel absErrorRel iRMSE
Error 5.17 0.60 5.69 7.29
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 8

SILog sqErrorRel absErrorRel iRMSE
Error 11.24 1.90 10.23 14.54
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 9

SILog sqErrorRel absErrorRel iRMSE
Error 6.64 0.64 4.86 6.69
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 10

SILog sqErrorRel absErrorRel iRMSE
Error 5.01 0.33 3.76 5.20
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 11

SILog sqErrorRel absErrorRel iRMSE
Error 10.70 1.12 8.44 11.75
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 12

SILog sqErrorRel absErrorRel iRMSE
Error 3.83 0.28 4.02 3.70
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 13

SILog sqErrorRel absErrorRel iRMSE
Error 7.60 0.74 5.77 4.91
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 14

SILog sqErrorRel absErrorRel iRMSE
Error 1.48 0.03 1.05 1.59
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 15

SILog sqErrorRel absErrorRel iRMSE
Error 6.23 0.46 5.46 10.53
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 16

SILog sqErrorRel absErrorRel iRMSE
Error 7.61 0.71 4.46 4.67
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 17

SILog sqErrorRel absErrorRel iRMSE
Error 9.06 0.99 6.47 10.04
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 18

SILog sqErrorRel absErrorRel iRMSE
Error 15.86 2.73 13.46 16.15
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 19

SILog sqErrorRel absErrorRel iRMSE
Error 11.26 1.39 8.02 13.71
This table as LaTeX

Input Image

D1 Result

D1 Error




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