Method

Wide Stride Multi-Classification Stereo Matching Network with Subpixel Cross-entropy Loss [WSMCnet]
https://github.com/wyf2017/WSMCnet

Submitted on 20 Jun. 2019 16:41 by
yufeng wang (University of Naval Aviation)

Running time:0.39 s
Environment:GPU @ Nvidia GTX 1070 (Pytorch)

Method Description:
For the stereo matching method based on deep learning, the network architecture is critical for the accuracy of the algorithm, while the efficiency is also an important factor to consider in practical applications. A stereo matching method with spare cost volume in disparity dimension is proposed. The spare cost volume is created by shifting right-view features with a wide stride to reduce greatly the memory and computational resources in three-dimension convolution module. The matching cost is nonlinearly sampled by means of multi-classification in disparity dimension, and model is trained with merging two kind of loss function, so that the accuracy is improved without notably lowering the efficiency.
Parameters:
S=2, C=3, bi-linear
Adam(0.9,0.999),
epoch=20,
lr0=0.001(15)
lr1=0.0001(5)
loss_cross_entry
Latex Bibtex:
@article{wang2019WSMCnet,
title={Stereo Matching Algorithm Based on Three-Dimensional Convolutional Neural Network},
author={Wang, Yufeng and Wang, Hongwei and Yu, Guang and Yang, Mingquan and Yuan, Yuwei and Quan, Jicheng},
journal={Acta Optica Sinica},
volume={39},
number={11},
pages={1115001},
year={2019},
publisher={Chinese Laser Press}
}

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 2.35 % 3.04 % 0.6 px 0.6 px
3 pixels 1.42 % 1.90 % 0.6 px 0.6 px
4 pixels 1.07 % 1.45 % 0.6 px 0.6 px
5 pixels 0.89 % 1.19 % 0.6 px 0.6 px
This table as LaTeX

Reflective Regions

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 13.92 % 16.17 % 2.1 px 2.3 px
3 pixels 8.50 % 10.27 % 2.1 px 2.3 px
4 pixels 6.08 % 7.50 % 2.1 px 2.3 px
5 pixels 4.84 % 5.97 % 2.1 px 2.3 px
This table as LaTeX

Test Image 0

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.44 % 1.92 % 0.4 px 0.5 px
3 pixels 0.97 % 1.20 % 0.4 px 0.5 px
4 pixels 0.80 % 1.02 % 0.4 px 0.5 px
5 pixels 0.68 % 0.91 % 0.4 px 0.5 px
This table as LaTeX





Test Image 1

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.51 % 3.66 % 0.5 px 0.6 px
3 pixels 1.43 % 2.25 % 0.5 px 0.6 px
4 pixels 1.14 % 1.66 % 0.5 px 0.6 px
5 pixels 0.92 % 1.33 % 0.5 px 0.6 px
This table as LaTeX





Test Image 2

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.26 % 1.29 % 0.4 px 0.4 px
3 pixels 0.59 % 0.63 % 0.4 px 0.4 px
4 pixels 0.45 % 0.49 % 0.4 px 0.4 px
5 pixels 0.41 % 0.44 % 0.4 px 0.4 px
This table as LaTeX





Test Image 3

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.64 % 1.11 % 0.4 px 0.4 px
3 pixels 0.31 % 0.42 % 0.4 px 0.4 px
4 pixels 0.27 % 0.30 % 0.4 px 0.4 px
5 pixels 0.24 % 0.25 % 0.4 px 0.4 px
This table as LaTeX





Test Image 4

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.90 % 1.14 % 0.4 px 0.4 px
3 pixels 0.54 % 0.60 % 0.4 px 0.4 px
4 pixels 0.28 % 0.34 % 0.4 px 0.4 px
5 pixels 0.22 % 0.28 % 0.4 px 0.4 px
This table as LaTeX





Test Image 5

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.88 % 1.09 % 0.3 px 0.4 px
3 pixels 0.50 % 0.63 % 0.3 px 0.4 px
4 pixels 0.38 % 0.48 % 0.3 px 0.4 px
5 pixels 0.31 % 0.40 % 0.3 px 0.4 px
This table as LaTeX





Test Image 6

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.89 % 5.91 % 0.7 px 0.7 px
3 pixels 2.17 % 2.75 % 0.7 px 0.7 px
4 pixels 1.30 % 1.65 % 0.7 px 0.7 px
5 pixels 0.96 % 1.21 % 0.7 px 0.7 px
This table as LaTeX





Test Image 7

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.32 % 2.99 % 0.6 px 0.7 px
3 pixels 1.30 % 1.75 % 0.6 px 0.7 px
4 pixels 0.99 % 1.35 % 0.6 px 0.7 px
5 pixels 0.88 % 1.19 % 0.6 px 0.7 px
This table as LaTeX





Test Image 8

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.23 % 1.78 % 0.4 px 0.5 px
3 pixels 0.80 % 1.31 % 0.4 px 0.5 px
4 pixels 0.69 % 1.20 % 0.4 px 0.5 px
5 pixels 0.62 % 1.14 % 0.4 px 0.5 px
This table as LaTeX





Test Image 9

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.65 % 2.81 % 0.5 px 0.8 px
3 pixels 0.86 % 1.32 % 0.5 px 0.8 px
4 pixels 0.59 % 1.02 % 0.5 px 0.8 px
5 pixels 0.45 % 0.87 % 0.5 px 0.8 px
This table as LaTeX





Test Image 10

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.70 % 2.58 % 0.4 px 0.5 px
3 pixels 1.03 % 1.49 % 0.4 px 0.5 px
4 pixels 0.75 % 0.88 % 0.4 px 0.5 px
5 pixels 0.66 % 0.70 % 0.4 px 0.5 px
This table as LaTeX





Test Image 11

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.95 % 3.43 % 0.7 px 0.7 px
3 pixels 1.13 % 2.03 % 0.7 px 0.7 px
4 pixels 0.84 % 1.41 % 0.7 px 0.7 px
5 pixels 0.76 % 0.98 % 0.7 px 0.7 px
This table as LaTeX





Test Image 12

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.72 % 5.86 % 0.8 px 0.9 px
3 pixels 2.75 % 4.66 % 0.8 px 0.9 px
4 pixels 2.41 % 4.07 % 0.8 px 0.9 px
5 pixels 2.23 % 3.66 % 0.8 px 0.9 px
This table as LaTeX





Test Image 13

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.55 % 2.28 % 0.5 px 0.5 px
3 pixels 1.05 % 1.53 % 0.5 px 0.5 px
4 pixels 0.86 % 1.25 % 0.5 px 0.5 px
5 pixels 0.80 % 1.10 % 0.5 px 0.5 px
This table as LaTeX





Test Image 14

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.52 % 0.54 % 0.3 px 0.4 px
3 pixels 0.20 % 0.22 % 0.3 px 0.4 px
4 pixels 0.16 % 0.18 % 0.3 px 0.4 px
5 pixels 0.15 % 0.17 % 0.3 px 0.4 px
This table as LaTeX





Test Image 15

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.91 % 2.95 % 0.6 px 0.6 px
3 pixels 1.65 % 1.65 % 0.6 px 0.6 px
4 pixels 0.91 % 0.93 % 0.6 px 0.6 px
5 pixels 0.59 % 0.61 % 0.6 px 0.6 px
This table as LaTeX





Test Image 16

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 2.14 % 2.17 % 0.5 px 0.5 px
3 pixels 0.88 % 0.93 % 0.5 px 0.5 px
4 pixels 0.52 % 0.58 % 0.5 px 0.5 px
5 pixels 0.39 % 0.45 % 0.5 px 0.5 px
This table as LaTeX





Test Image 17

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.29 % 5.55 % 0.6 px 0.7 px
3 pixels 2.93 % 4.03 % 0.6 px 0.7 px
4 pixels 2.22 % 2.94 % 0.6 px 0.7 px
5 pixels 1.74 % 2.05 % 0.6 px 0.7 px
This table as LaTeX





Test Image 18

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.95 % 1.44 % 0.3 px 0.4 px
3 pixels 0.40 % 0.58 % 0.3 px 0.4 px
4 pixels 0.32 % 0.47 % 0.3 px 0.4 px
5 pixels 0.27 % 0.38 % 0.3 px 0.4 px
This table as LaTeX





Test Image 19

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.92 % 0.94 % 0.4 px 0.4 px
3 pixels 0.59 % 0.61 % 0.4 px 0.4 px
4 pixels 0.49 % 0.51 % 0.4 px 0.4 px
5 pixels 0.39 % 0.41 % 0.4 px 0.4 px
This table as LaTeX







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