Method

Displets: Resolving Stereo Ambiguities using Object Knowledge [Displets v2]
http://www.cvlibs.net/projects/displets/

Submitted on 26 Nov. 2015 10:26 by
Fatma Guney (MPI)

Running time:265 s
Environment:>8 cores @ 3.0 Ghz (Matlab + C/C++)

Method Description:
Stereo techniques have witnessed tremendous
progress over the last decades, yet some aspects
of the problem still remain
challenging today. Striking examples are
reflecting and textureless surfaces which cannot
easily be recovered using
traditional local regularizers. In this paper, we
therefore propose to regularize over larger
distances using object-
category specific disparity proposals (displets)
which we sample using inverse graphics techniques
based on a sparse
disparity estimate and a semantic segmentation of
the image. The proposed displets encode the fact
that objects of
certain categories are not arbitrarily shaped but
typically exhibit regular structures. We
integrate them as non-local
regularizer for the challenging object class
'car' into a superpixel based CRF framework.

Note: We use the new features from "Stereo
Matching by Training a Convolutional Neural
Network to Compare
Image Patches" (accurate version).
Parameters:
Number of Particles: 30
Number of Superpixels: 1000
Number of Iterations: 40
TRWS - Number of Iterations: 200
Particle Standard Deviations: [0.5 0.5 5]

Please check Table 1 of the supplementary material
for a complete list of parameters.
Latex Bibtex:
@INPROCEEDINGS{Guney2015CVPR,
author = {Fatma Guney and Andreas Geiger},
title = {Displets: Resolving Stereo Ambiguities
using Object
Knowledge},
booktitle = {Conference on Computer Vision and
Pattern Recognition
(CVPR)},
year = {2015}
}

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 3.43 % 4.46 % 0.7 px 0.8 px
3 pixels 2.37 % 3.09 % 0.7 px 0.8 px
4 pixels 1.97 % 2.52 % 0.7 px 0.8 px
5 pixels 1.72 % 2.17 % 0.7 px 0.8 px
This table as LaTeX

Reflective Regions

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 14.38 % 16.25 % 2.0 px 2.2 px
3 pixels 8.99 % 10.41 % 2.0 px 2.2 px
4 pixels 6.92 % 8.02 % 2.0 px 2.2 px
5 pixels 5.71 % 6.61 % 2.0 px 2.2 px
This table as LaTeX

Test Image 0

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.16 % 3.54 % 0.7 px 0.7 px
3 pixels 2.25 % 2.40 % 0.7 px 0.7 px
4 pixels 1.93 % 2.08 % 0.7 px 0.7 px
5 pixels 1.71 % 1.87 % 0.7 px 0.7 px
This table as LaTeX





Test Image 1

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.35 % 5.26 % 0.7 px 0.7 px
3 pixels 2.03 % 3.17 % 0.7 px 0.7 px
4 pixels 1.71 % 2.47 % 0.7 px 0.7 px
5 pixels 1.53 % 2.14 % 0.7 px 0.7 px
This table as LaTeX





Test Image 2

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.96 % 2.49 % 0.5 px 0.5 px
3 pixels 1.28 % 1.73 % 0.5 px 0.5 px
4 pixels 1.12 % 1.53 % 0.5 px 0.5 px
5 pixels 1.04 % 1.42 % 0.5 px 0.5 px
This table as LaTeX





Test Image 3

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.43 % 3.48 % 0.5 px 0.6 px
3 pixels 1.79 % 1.82 % 0.5 px 0.6 px
4 pixels 1.28 % 1.33 % 0.5 px 0.6 px
5 pixels 0.93 % 0.99 % 0.5 px 0.6 px
This table as LaTeX





Test Image 4

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.57 % 2.65 % 0.5 px 0.5 px
3 pixels 1.22 % 1.26 % 0.5 px 0.5 px
4 pixels 1.13 % 1.17 % 0.5 px 0.5 px
5 pixels 1.10 % 1.14 % 0.5 px 0.5 px
This table as LaTeX





Test Image 5

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.80 % 1.93 % 0.4 px 0.4 px
3 pixels 1.16 % 1.19 % 0.4 px 0.4 px
4 pixels 0.94 % 0.96 % 0.4 px 0.4 px
5 pixels 0.82 % 0.83 % 0.4 px 0.4 px
This table as LaTeX





Test Image 6

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.56 % 4.99 % 0.7 px 0.8 px
3 pixels 2.52 % 2.99 % 0.7 px 0.8 px
4 pixels 1.80 % 2.27 % 0.7 px 0.8 px
5 pixels 1.58 % 2.03 % 0.7 px 0.8 px
This table as LaTeX





Test Image 7

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.14 % 5.26 % 0.9 px 1.1 px
3 pixels 2.86 % 3.95 % 0.9 px 1.1 px
4 pixels 2.37 % 3.43 % 0.9 px 1.1 px
5 pixels 1.96 % 2.97 % 0.9 px 1.1 px
This table as LaTeX





Test Image 8

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.71 % 2.15 % 0.5 px 0.5 px
3 pixels 1.13 % 1.58 % 0.5 px 0.5 px
4 pixels 0.95 % 1.40 % 0.5 px 0.5 px
5 pixels 0.86 % 1.32 % 0.5 px 0.5 px
This table as LaTeX





Test Image 9

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 5.86 % 8.12 % 1.1 px 1.4 px
3 pixels 3.95 % 6.19 % 1.1 px 1.4 px
4 pixels 2.99 % 4.88 % 1.1 px 1.4 px
5 pixels 2.53 % 4.04 % 1.1 px 1.4 px
This table as LaTeX





Test Image 10

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.80 % 2.37 % 0.5 px 0.5 px
3 pixels 1.25 % 1.38 % 0.5 px 0.5 px
4 pixels 0.99 % 1.09 % 0.5 px 0.5 px
5 pixels 0.88 % 0.96 % 0.5 px 0.5 px
This table as LaTeX





Test Image 11

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.22 % 5.83 % 1.0 px 1.0 px
3 pixels 2.29 % 3.81 % 1.0 px 1.0 px
4 pixels 1.95 % 2.37 % 1.0 px 1.0 px
5 pixels 1.76 % 1.72 % 1.0 px 1.0 px
This table as LaTeX





Test Image 12

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.68 % 5.90 % 1.2 px 1.3 px
3 pixels 3.95 % 4.93 % 1.2 px 1.3 px
4 pixels 3.60 % 4.34 % 1.2 px 1.3 px
5 pixels 3.48 % 4.00 % 1.2 px 1.3 px
This table as LaTeX





Test Image 13

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.15 % 3.35 % 0.8 px 0.8 px
3 pixels 2.42 % 2.42 % 0.8 px 0.8 px
4 pixels 2.16 % 2.16 % 0.8 px 0.8 px
5 pixels 1.91 % 1.89 % 0.8 px 0.8 px
This table as LaTeX





Test Image 14

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.06 % 2.23 % 0.4 px 0.5 px
3 pixels 0.74 % 1.56 % 0.4 px 0.5 px
4 pixels 0.70 % 1.23 % 0.4 px 0.5 px
5 pixels 0.61 % 0.95 % 0.4 px 0.5 px
This table as LaTeX





Test Image 15

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.26 % 4.75 % 0.7 px 0.7 px
3 pixels 2.71 % 2.79 % 0.7 px 0.7 px
4 pixels 1.86 % 1.82 % 0.7 px 0.7 px
5 pixels 1.24 % 1.21 % 0.7 px 0.7 px
This table as LaTeX





Test Image 16

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 3.44 % 3.38 % 0.6 px 0.6 px
3 pixels 1.24 % 1.22 % 0.6 px 0.6 px
4 pixels 0.81 % 0.80 % 0.6 px 0.6 px
5 pixels 0.61 % 0.60 % 0.6 px 0.6 px
This table as LaTeX





Test Image 17

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 4.72 % 5.93 % 0.8 px 0.8 px
3 pixels 3.84 % 4.84 % 0.8 px 0.8 px
4 pixels 3.31 % 3.94 % 0.8 px 0.8 px
5 pixels 2.64 % 2.92 % 0.8 px 0.8 px
This table as LaTeX





Test Image 18

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 0.96 % 1.32 % 0.3 px 0.4 px
3 pixels 0.59 % 0.72 % 0.3 px 0.4 px
4 pixels 0.45 % 0.55 % 0.3 px 0.4 px
5 pixels 0.32 % 0.33 % 0.3 px 0.4 px
This table as LaTeX





Test Image 19

Error Out-Noc Out-All Avg-Noc Avg-All
2 pixels 1.42 % 1.60 % 0.5 px 0.5 px
3 pixels 0.81 % 0.80 % 0.5 px 0.5 px
4 pixels 0.70 % 0.68 % 0.5 px 0.5 px
5 pixels 0.66 % 0.64 % 0.5 px 0.5 px
This table as LaTeX







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