2,841 research outputs found
Weakly- and Self-Supervised Learning for Content-Aware Deep Image Retargeting
This paper proposes a weakly- and self-supervised deep convolutional neural
network (WSSDCNN) for content-aware image retargeting. Our network takes a
source image and a target aspect ratio, and then directly outputs a retargeted
image. Retargeting is performed through a shift map, which is a pixel-wise
mapping from the source to the target grid. Our method implicitly learns an
attention map, which leads to a content-aware shift map for image retargeting.
As a result, discriminative parts in an image are preserved, while background
regions are adjusted seamlessly. In the training phase, pairs of an image and
its image-level annotation are used to compute content and structure losses. We
demonstrate the effectiveness of our proposed method for a retargeting
application with insightful analyses.Comment: 10 pages, 11 figures. To appear in ICCV 2017, Spotlight Presentatio
Sub-fingerprint masking for a robust audio fingerprinting system in a real-noise environment for portable consumer devices
The file attached is author's final draft.The robustness of audio fingerprinting system in a noisy environment
is a principal challenge in the area of content-based audio retrieval,
especially for use in portable consumer devices. Our new audio
fingerprint method using sub-fingerprint masking based on the
predominant pitch extraction increases the accuracy of the audio
fingerprinting system in a noisy environment dramatically, while
requiring much less computing power compared to the expanded
hash table lookup method, where the searching complexity increases
by the factor of 33 times the degree of expansion.Supported by Seoul R&BD Program
# 10581
All-in-one assembly based on 3D-intertangled and cross-jointed architectures of Si/Cu 1D-nanowires for lithium ion batteries
All-in-one assemblies of separator, electrode and current collector (SECA) for lithium ion batteries are presented by using 1D nanowires of Si and Cu (nwSi and nwCu). Even without binders, integrity of SECA is secured via structural joints based on ductility of Cu as well as entanglement of nwSi and nwCu. By controlling the ratio of the nanowires, the number of contact points and voids accommodating volume expansion of Si active material are tunable. Zero volume expansion and high energy density are simultaneously achievable by the architectureopen0
Sub-fingerprint masking for a robust audio fingerprinting system in a real-noise environment for portable consumer devices
author's final draftThe robustness of audio fingerprinting system in a noisy environment is a principal challenge in the area of content-based music retrieval, especially for use in portable consumer devices. Our new audio fingerprint method using sub-fingerprint masking based on the predominant pitch extraction dramatically increases the accuracy of the audio fingerprinting system in a noisy environment, while requiring much less computing power for matching, compared to the expanded hash table lookup method, where the searching complexity increases by the factor of 33 times the degree of expansion.This research was supported by Konkuk University
Effect of two different exercises on balance, pain and ankle motor function in male college students with chronic ankle instability
Strength and proprioceptive exercise are known to be representative exercise
methods used in patients with chronic ankle instability (CAI) and they are
effective in restoring ankle stability and body balance, which gets reduced by
repetitive ankle sprains. But, there is a lack of data comparing the effects of
strengthening or proprioceptive exercise rehabilitation program for CAI patients.
The purpose of this study is to investigate the effect of a 4-week exercise
program on ankle range of motion (ROM), static/dynamic balance, and drop landing
in college students with CAI. The subjects of this study were 21 male college
students who had the Cumberland ankle instability tool (CAIT) questionnaire
scores of 24 or less, and they were divided into three groups; the non-treated
group (NTG), the traditional strength exercise group (SEG) and the proprioceptive
exercise group (PEG). The exercise rehabilitation program was applied 3 times a
week for 4 weeks. To examine the difference between groups, CAIT, visual analogue
scale (VAS), body composition, ankle ROM, one-leg standing with eyes closed and
Y-balance test (YBT) as well as center of pressure (COP) 95% confidence ellipse
area during drop landing were measured before and after the exercise
intervention. CAIT scores and static balance were significantly increased in the
PEG compared to the NTG and the SEG, and ankle dorsiflexion ROM and Y-balance
were significantly increased in the SEG and the PEG compared to the NTG. In
addition, pain, ankle inversion ROM, and COP 95% confidence ellipse area were
significantly reduced in the SEG and the PEG compared to the NTG. The
proprioceptive exercise program is thought to be effective therapeutic approach
on improving the symptoms of CAI patients
Eosinophilic Otitis Media: CT and MRI Findings and Literature Review
Eosinophilic otitis media (EOM) is a relatively rare, intractable, middle ear disease with extremely viscous mucoid effusion containing eosinophils. EOM is associated with adult bronchial asthma and nasal allergies. Conventional treatments for otitis media with effusion (OME) or for chronic otitis media (COM), like tympanoplasty or mastoidectomy, when performed for the treatment of EOM, can induce severe complications such as deafness. Therefore, it should be differentiated from the usual type of OME or COM. To our knowledge, the clinical and imaging findings of EOM of temporal bone are not well-known to radiologists. We report here the CT and MRI findings of two EOM cases and review the clinical and histopathologic findings of this recently described disease entity
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