Method

multi-block-matching stereo [MBM]


Submitted on 25 Sep. 2015 15:28 by
Nils Einecke (Honda Research Institute Europe GmbH)

Running time:0.13 s
Environment:1 core @ 3.0 Ghz (C/C++)

Method Description:
You can get a copy of the paper here.

A novel multi-block-matching scheme for standard stereo.

The idea is to use multiple blocks (filters) of different size and shape and to integrate their correlation values in a probabilistic fashion. Especially, an additional set of elongated horizontal and vertical blocks leads to a drastic improvement in street scenarios.
Parameters:
SNCC (first stage 3x3, second stage uses four blocks 61x1, 1x61, 3x3, 11x11)
sigma_gauss = 0.9
disp_range RBM = 64
min correlation threshold = 0.3
region growing threshold = 2.5 disparity
min region size = 200 pixel
median filter = 1x9 and 9x1
Latex Bibtex:
@InProceedings{Einecke2014IV,
author = {N. Einecke and J. Eggert},
title = {A Multi-Block-Matching Approach for Stereo},
booktitle = {IV},
year = 2015
}

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 Object Scene Flow for Autonomous Vehicles (CVPR 2015), 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 Object Scene Flow for Autonomous Vehicles (CVPR 2015), 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

Error D1-bg D1-fg D1-all
All / All 4.69 13.05 6.08
All / Est 4.69 13.05 6.08
Noc / All 4.33 12.12 5.61
Noc / Est 4.33 12.12 5.61
This table as LaTeX

Test Image 0

Error D1-bg D1-fg D1-all
All / All 5.26 3.60 5.03
All / Est 5.26 3.60 5.03
Noc / All 5.26 3.60 5.03
Noc / Est 5.26 3.60 5.03
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 1

Error D1-bg D1-fg D1-all
All / All 3.39 9.31 4.05
All / Est 3.39 9.31 4.05
Noc / All 3.33 9.31 4.01
Noc / Est 3.33 9.31 4.01
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 2

Error D1-bg D1-fg D1-all
All / All 4.76 6.71 4.85
All / Est 4.76 6.71 4.85
Noc / All 4.19 6.71 4.31
Noc / Est 4.19 6.71 4.31
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 3

Error D1-bg D1-fg D1-all
All / All 7.40 19.90 8.55
All / Est 7.40 19.90 8.55
Noc / All 7.01 19.90 8.22
Noc / Est 7.01 19.90 8.22
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 4

Error D1-bg D1-fg D1-all
All / All 8.26 9.95 8.54
All / Est 8.26 9.95 8.54
Noc / All 7.25 9.95 7.71
Noc / Est 7.25 9.95 7.71
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 5

Error D1-bg D1-fg D1-all
All / All 10.54 5.04 10.04
All / Est 10.54 5.04 10.04
Noc / All 9.10 5.04 8.72
Noc / Est 9.10 5.04 8.72
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 6

Error D1-bg D1-fg D1-all
All / All 9.90 6.18 9.51
All / Est 9.90 6.18 9.51
Noc / All 9.99 6.18 9.58
Noc / Est 9.99 6.18 9.58
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 7

Error D1-bg D1-fg D1-all
All / All 3.25 15.52 5.65
All / Est 3.25 15.52 5.65
Noc / All 3.30 15.52 5.72
Noc / Est 3.30 15.52 5.72
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 8

Error D1-bg D1-fg D1-all
All / All 2.75 3.47 2.88
All / Est 2.75 3.47 2.88
Noc / All 2.75 3.47 2.88
Noc / Est 2.75 3.47 2.88
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 9

Error D1-bg D1-fg D1-all
All / All 3.59 7.34 4.55
All / Est 3.59 7.34 4.55
Noc / All 3.63 7.70 4.65
Noc / Est 3.63 7.70 4.65
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 10

Error D1-bg D1-fg D1-all
All / All 3.96 8.48 4.99
All / Est 3.96 8.48 4.99
Noc / All 4.01 8.48 5.04
Noc / Est 4.01 8.48 5.04
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 11

Error D1-bg D1-fg D1-all
All / All 2.33 2.12 2.30
All / Est 2.33 2.12 2.30
Noc / All 2.35 2.12 2.31
Noc / Est 2.35 2.12 2.31
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 12

Error D1-bg D1-fg D1-all
All / All 1.57 2.78 1.66
All / Est 1.57 2.78 1.66
Noc / All 1.57 2.78 1.66
Noc / Est 1.57 2.78 1.66
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 13

Error D1-bg D1-fg D1-all
All / All 1.62 2.07 1.68
All / Est 1.62 2.07 1.68
Noc / All 1.46 2.07 1.53
Noc / Est 1.46 2.07 1.53
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 14

Error D1-bg D1-fg D1-all
All / All 1.45 7.25 1.55
All / Est 1.45 7.25 1.55
Noc / All 1.34 7.25 1.44
Noc / Est 1.34 7.25 1.44
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 15

Error D1-bg D1-fg D1-all
All / All 4.64 5.22 4.69
All / Est 4.64 5.22 4.69
Noc / All 4.73 5.22 4.77
Noc / Est 4.73 5.22 4.77
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 16

Error D1-bg D1-fg D1-all
All / All 5.83 4.88 5.69
All / Est 5.83 4.88 5.69
Noc / All 5.38 4.88 5.31
Noc / Est 5.38 4.88 5.31
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 17

Error D1-bg D1-fg D1-all
All / All 2.21 1.56 2.15
All / Est 2.21 1.56 2.15
Noc / All 1.91 1.56 1.87
Noc / Est 1.91 1.56 1.87
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 18

Error D1-bg D1-fg D1-all
All / All 7.91 14.09 10.84
All / Est 7.91 14.09 10.84
Noc / All 7.85 14.09 10.84
Noc / Est 7.85 14.09 10.84
This table as LaTeX

Input Image

D1 Result

D1 Error


Test Image 19

Error D1-bg D1-fg D1-all
All / All 1.64 5.38 2.07
All / Est 1.64 5.38 2.07
Noc / All 1.65 5.38 2.07
Noc / Est 1.65 5.38 2.07
This table as LaTeX

Input Image

D1 Result

D1 Error




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