3 research outputs found
Optical Flow Based Online Moving Foreground Analysis
Obtained by moving object detection, the foreground mask result is unshaped
and can not be directly used in most subsequent processes. In this paper, we
focus on this problem and address it by constructing an optical flow based
moving foreground analysis framework. During the processing procedure, the
foreground masks are analyzed and segmented through two complementary
clustering algorithms. As a result, we obtain the instance-level information
like the number, location and size of moving objects. The experimental result
show that our method adapts itself to the problem and performs well enough for
practical applications.Comment: 6page
Motion Control on Bionic Eyes: A Comprehensive Review
Biology can provide biomimetic components and new control principles for
robotics. Developing a robot system equipped with bionic eyes is a difficult
but exciting task. Researchers have been studying the control mechanisms of
bionic eyes for many years and considerable models are available. In this
paper, control model and its implementation on robots for bionic eyes are
reviewed, which covers saccade, smooth pursuit, vergence, vestibule-ocular
reflex (VOR), optokinetic reflex (OKR) and eye-head coordination. What is more,
some problems and possible solutions in the field of bionic eyes are discussed
and analyzed. This review paper can be used as a guide for researchers to
identify potential research problems and solutions of the bionic eyes' motion
control
High Performance Visual Object Tracking with Unified Convolutional Networks
Convolutional neural networks (CNN) based tracking approaches have shown
favorable performance in recent benchmarks. Nonetheless, the chosen CNN
features are always pre-trained in different tasks and individual components in
tracking systems are learned separately, thus the achieved tracking performance
may be suboptimal. Besides, most of these trackers are not designed towards
real-time applications because of their time-consuming feature extraction and
complex optimization details. In this paper, we propose an end-to-end framework
to learn the convolutional features and perform the tracking process
simultaneously, namely, a unified convolutional tracker (UCT). Specifically,
the UCT treats feature extractor and tracking process both as convolution
operation and trains them jointly, which enables learned CNN features are
tightly coupled with tracking process. During online tracking, an efficient
model updating method is proposed by introducing peak-versus-noise ratio (PNR)
criterion, and scale changes are handled efficiently by incorporating a scale
branch into network. Experiments are performed on four challenging tracking
datasets: OTB2013, OTB2015, VOT2015 and VOT2016. Our method achieves leading
performance on these benchmarks while maintaining beyond real-time speed.Comment: Extended version of [arXiv:1711.04661] our UCT tracker in ICCV
VOT201