393 research outputs found
Paper about Dr. William Aaron Brandenburg.
10 page paper for a class; about W. A. Brandenbur
Multiple Object Tracking in Urban Traffic Scenes with a Multiclass Object Detector
Multiple object tracking (MOT) in urban traffic aims to produce the
trajectories of the different road users that move across the field of view
with different directions and speeds and that can have varying appearances and
sizes. Occlusions and interactions among the different objects are expected and
common due to the nature of urban road traffic. In this work, a tracking
framework employing classification label information from a deep learning
detection approach is used for associating the different objects, in addition
to object position and appearances. We want to investigate the performance of a
modern multiclass object detector for the MOT task in traffic scenes. Results
show that the object labels improve tracking performance, but that the output
of object detectors are not always reliable.Comment: 13th International Symposium on Visual Computing (ISVC
Simple Baselines for Human Pose Estimation and Tracking
There has been significant progress on pose estimation and increasing
interests on pose tracking in recent years. At the same time, the overall
algorithm and system complexity increases as well, making the algorithm
analysis and comparison more difficult. This work provides simple and effective
baseline methods. They are helpful for inspiring and evaluating new ideas for
the field. State-of-the-art results are achieved on challenging benchmarks. The
code will be available at https://github.com/leoxiaobin/pose.pytorch.Comment: Accepted by ECCV 201
Localization Recall Precision (LRP): A New Performance Metric for Object Detection
Average precision (AP), the area under the recall-precision (RP) curve, is
the standard performance measure for object detection. Despite its wide
acceptance, it has a number of shortcomings, the most important of which are
(i) the inability to distinguish very different RP curves, and (ii) the lack of
directly measuring bounding box localization accuracy. In this paper, we
propose 'Localization Recall Precision (LRP) Error', a new metric which we
specifically designed for object detection. LRP Error is composed of three
components related to localization, false negative (FN) rate and false positive
(FP) rate. Based on LRP, we introduce the 'Optimal LRP', the minimum achievable
LRP error representing the best achievable configuration of the detector in
terms of recall-precision and the tightness of the boxes. In contrast to AP,
which considers precisions over the entire recall domain, Optimal LRP
determines the 'best' confidence score threshold for a class, which balances
the trade-off between localization and recall-precision. In our experiments, we
show that, for state-of-the-art object (SOTA) detectors, Optimal LRP provides
richer and more discriminative information than AP. We also demonstrate that
the best confidence score thresholds vary significantly among classes and
detectors. Moreover, we present LRP results of a simple online video object
detector which uses a SOTA still image object detector and show that the
class-specific optimized thresholds increase the accuracy against the common
approach of using a general threshold for all classes. At
https://github.com/cancam/LRP we provide the source code that can compute LRP
for the PASCAL VOC and MSCOCO datasets. Our source code can easily be adapted
to other datasets as well.Comment: to appear in ECCV 201
THERMAL CONDUCTIVITY FOR A NOISY DISORDERED HARMONIC CHAIN
We consider a -dimensional disordered harmonic chain (DHC) perturbed by an energy conservative noise. We obtain uniform in the volume upper and lower bounds for the thermal conductivity defined through the Green-Kubo formula. These bounds indicate a positive finite conductivity. We prove also that the infinite volume homogenized Green-Kubo formula converges
Superdiffusivity of Finite-Range Asymmetric Exclusion Processes on
We consider finite-range asymmetric exclusion processes on with
non-zero drift. The diffusivity is expected to be of . We prove that in the weak (Tauberian) sense
that as . The proof employs the resolvent method to make a direct comparison with the
totally asymmetric simple exclusion process, for which the result is a
consequence of the scaling limit for the two-point function recently obtained
by Ferrari and Spohn. In the nearest neighbor case, we show further that
is monotone, and hence we can conclude that in the usual sense.Comment: Version 3. Statement of Theorem 3 is correcte
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