Method

NeXtStereo: Directionally Driven Channel Expansion Gives Adaptive Real-Time Stereo [NeXtStereo-M]
[Anonymous Submission]

Submitted on 20 Nov. 2025 02:30 by
[Anonymous Submission]

Running time:0.03 s
Environment:1 core @ 2.5 Ghz (Python)

Method Description:
We present NeXTStereo, a lightweight stereo disparity estimation
network designed for real-time applications. NeXTStereo builds on
Widened ConvNeXtV2 blocks, leveraging the strong generalization
capabilities of the ConvNeXt and ConvNeXtV2 architectures. In
addition, we introduce Directionally Modulated Attention (DMA), a
novel attention mechanism that incorporates geometric priors to
modulate features extracted from a learnable edge extractor.
Unlike existing attention designs that rely on learned edge
masking layer or edges as soft masks, DMA uses directional
geometric cues to improve feature selection, providing stronger
representational capability while maintaining computational
efficiency. This design provides strong representational capacity
while maintaining efficiency compared to similar sized state of the
art models.
Parameters:
8.62M parameters. [4 8 16] numbered WCNXv2 Blocks.
Latex Bibtex:

Detailed Results

This page provides detailed results for the method(s) selected. For each of the first 20 test images, the number of erroneous pixels at all thresholds is depicted in the table. Underneath, the left input image, the disparity / end-point error map and the estimated (and interpolated) disparity / optical flow map are shown. The error map scales linearly between 0 (black) and >=5 (white) pixels error. Red denotes all occluded pixels, falling outside the image boundaries. The false color map is scaled to the largest ground truth disparity / flow value.

Test Set Average

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.54 % 3.09 % 0.5 px 0.5 px
3 pixels 1.49 % 1.84 % 0.5 px 0.5 px
4 pixels 1.05 % 1.30 % 0.5 px 0.5 px
5 pixels 0.81 % 1.01 % 0.5 px 0.5 px
This table as LaTeX

Reflective Regions

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 11.55 % 13.49 % 1.1 px 1.3 px
3 pixels 6.55 % 8.03 % 1.1 px 1.3 px
4 pixels 4.48 % 5.64 % 1.1 px 1.3 px
5 pixels 3.30 % 4.23 % 1.1 px 1.3 px
This table as LaTeX

Test Image 0

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.70 % 1.91 % 0.4 px 0.4 px
3 pixels 1.13 % 1.36 % 0.4 px 0.4 px
4 pixels 0.89 % 1.11 % 0.4 px 0.4 px
5 pixels 0.69 % 0.90 % 0.4 px 0.4 px
This table as LaTeX





Test Image 1

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.24 % 3.54 % 0.5 px 0.6 px
3 pixels 1.92 % 2.07 % 0.5 px 0.6 px
4 pixels 1.43 % 1.52 % 0.5 px 0.6 px
5 pixels 1.17 % 1.24 % 0.5 px 0.6 px
This table as LaTeX





Test Image 2

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.41 % 1.60 % 0.3 px 0.4 px
3 pixels 0.55 % 0.64 % 0.3 px 0.4 px
4 pixels 0.32 % 0.39 % 0.3 px 0.4 px
5 pixels 0.24 % 0.29 % 0.3 px 0.4 px
This table as LaTeX





Test Image 3

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.45 % 1.43 % 0.3 px 0.4 px
3 pixels 0.21 % 0.29 % 0.3 px 0.4 px
4 pixels 0.17 % 0.18 % 0.3 px 0.4 px
5 pixels 0.14 % 0.15 % 0.3 px 0.4 px
This table as LaTeX





Test Image 4

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.93 % 1.08 % 0.3 px 0.4 px
3 pixels 0.61 % 0.72 % 0.3 px 0.4 px
4 pixels 0.41 % 0.51 % 0.3 px 0.4 px
5 pixels 0.17 % 0.27 % 0.3 px 0.4 px
This table as LaTeX





Test Image 5

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.18 % 1.25 % 0.3 px 0.3 px
3 pixels 0.76 % 0.78 % 0.3 px 0.3 px
4 pixels 0.50 % 0.51 % 0.3 px 0.3 px
5 pixels 0.42 % 0.44 % 0.3 px 0.3 px
This table as LaTeX





Test Image 6

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.47 % 6.32 % 0.6 px 0.7 px
3 pixels 2.36 % 3.65 % 0.6 px 0.7 px
4 pixels 1.60 % 2.22 % 0.6 px 0.7 px
5 pixels 1.28 % 1.56 % 0.6 px 0.7 px
This table as LaTeX





Test Image 7

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.36 % 3.91 % 0.7 px 0.7 px
3 pixels 1.94 % 2.31 % 0.7 px 0.7 px
4 pixels 1.35 % 1.54 % 0.7 px 0.7 px
5 pixels 1.06 % 1.16 % 0.7 px 0.7 px
This table as LaTeX





Test Image 8

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.71 % 1.84 % 0.4 px 0.4 px
3 pixels 1.01 % 1.07 % 0.4 px 0.4 px
4 pixels 0.76 % 0.79 % 0.4 px 0.4 px
5 pixels 0.60 % 0.62 % 0.4 px 0.4 px
This table as LaTeX





Test Image 9

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.04 % 3.12 % 0.6 px 0.8 px
3 pixels 1.12 % 1.43 % 0.6 px 0.8 px
4 pixels 0.81 % 1.05 % 0.6 px 0.8 px
5 pixels 0.70 % 0.90 % 0.6 px 0.8 px
This table as LaTeX





Test Image 10

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.67 % 2.30 % 0.4 px 0.4 px
3 pixels 1.15 % 1.34 % 0.4 px 0.4 px
4 pixels 0.92 % 1.06 % 0.4 px 0.4 px
5 pixels 0.83 % 0.95 % 0.4 px 0.4 px
This table as LaTeX





Test Image 11

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.91 % 2.12 % 0.5 px 0.5 px
3 pixels 0.96 % 1.11 % 0.5 px 0.5 px
4 pixels 0.65 % 0.73 % 0.5 px 0.5 px
5 pixels 0.51 % 0.55 % 0.5 px 0.5 px
This table as LaTeX





Test Image 12

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.58 % 5.59 % 0.6 px 0.8 px
3 pixels 2.10 % 3.99 % 0.6 px 0.8 px
4 pixels 1.49 % 3.23 % 0.6 px 0.8 px
5 pixels 1.28 % 2.83 % 0.6 px 0.8 px
This table as LaTeX





Test Image 13

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.55 % 2.91 % 0.5 px 0.5 px
3 pixels 1.56 % 1.69 % 0.5 px 0.5 px
4 pixels 1.15 % 1.16 % 0.5 px 0.5 px
5 pixels 1.00 % 1.00 % 0.5 px 0.5 px
This table as LaTeX





Test Image 14

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.69 % 0.71 % 0.3 px 0.3 px
3 pixels 0.33 % 0.33 % 0.3 px 0.3 px
4 pixels 0.26 % 0.25 % 0.3 px 0.3 px
5 pixels 0.21 % 0.20 % 0.3 px 0.3 px
This table as LaTeX





Test Image 15

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.12 % 3.05 % 0.5 px 0.5 px
3 pixels 1.71 % 1.67 % 0.5 px 0.5 px
4 pixels 0.79 % 0.77 % 0.5 px 0.5 px
5 pixels 0.55 % 0.54 % 0.5 px 0.5 px
This table as LaTeX





Test Image 16

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.68 % 2.63 % 0.5 px 0.5 px
3 pixels 1.03 % 1.01 % 0.5 px 0.5 px
4 pixels 0.60 % 0.59 % 0.5 px 0.5 px
5 pixels 0.41 % 0.40 % 0.5 px 0.5 px
This table as LaTeX





Test Image 17

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.97 % 4.30 % 0.6 px 0.6 px
3 pixels 2.29 % 2.50 % 0.6 px 0.6 px
4 pixels 1.48 % 1.64 % 0.6 px 0.6 px
5 pixels 1.10 % 1.21 % 0.6 px 0.6 px
This table as LaTeX





Test Image 18

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.62 % 0.64 % 0.4 px 0.4 px
3 pixels 0.41 % 0.41 % 0.4 px 0.4 px
4 pixels 0.26 % 0.26 % 0.4 px 0.4 px
5 pixels 0.17 % 0.17 % 0.4 px 0.4 px
This table as LaTeX





Test Image 19

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.26 % 1.23 % 0.4 px 0.4 px
3 pixels 0.76 % 0.73 % 0.4 px 0.4 px
4 pixels 0.57 % 0.56 % 0.4 px 0.4 px
5 pixels 0.47 % 0.45 % 0.4 px 0.4 px
This table as LaTeX







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