1,166 research outputs found
High-fidelity 3D Human Digitization from Single 2K Resolution Images
High-quality 3D human body reconstruction requires high-fidelity and
large-scale training data and appropriate network design that effectively
exploits the high-resolution input images. To tackle these problems, we propose
a simple yet effective 3D human digitization method called 2K2K, which
constructs a large-scale 2K human dataset and infers 3D human models from 2K
resolution images. The proposed method separately recovers the global shape of
a human and its details. The low-resolution depth network predicts the global
structure from a low-resolution image, and the part-wise image-to-normal
network predicts the details of the 3D human body structure. The
high-resolution depth network merges the global 3D shape and the detailed
structures to infer the high-resolution front and back side depth maps.
Finally, an off-the-shelf mesh generator reconstructs the full 3D human model,
which are available at https://github.com/SangHunHan92/2K2K. In addition, we
also provide 2,050 3D human models, including texture maps, 3D joints, and SMPL
parameters for research purposes. In experiments, we demonstrate competitive
performance over the recent works on various datasets.Comment: code page : https://github.com/SangHunHan92/2K2K, Accepted to CVPR
2023 (Highlight
Residential Development and Hierarchical Governance: Multifamily Housing and Multilevel Analysis
This study investigates factors that influence multifamily housing
zoning from a hierarchical governance perspective. Local zoning is a product of
interactive processes among various stakeholders and of local politics. Since
local zoning represents community interests in land development and has an
exclusionary characteristic, multifamily housing zoning is controversial in some
localities. We hypothesize that a hierarchical governance structure influences
the supply of local multifamily housing zoning. The result of a hierarchical
generalized linear model shows evidence that state smart growth reform and
state intervention in local land use are positively associated with the establishment
of local multifamily housing zoning. The decisions are also affected by local
factors such as the supply of land, density restrictions, cost of new infrastructure,
and city budget constraints. This study concludes that state authority and smart
growth reform make it possible for local governments to commit to multifamily
housing zoning to achieve housing affordability and high-density development
Effect of Total Leaf Numbers on the Growth and Fruit Quality in Muskmelon Plants Showing Leaf Yellowing Symptoms
This study was conducted to evaluate the influence of total leaf
numbers on the growth, net formation of fruits, and occurrence of
leaf yellowing symptoms (LYS) in muskmelon plants. The growth
and development of LYS on muskmelon plants having 25, 30, and
35 fully expanded leaves on the vine were compared to those of the
control plant having 20 leaves. Plant height, leaf area, root fresh
weight, and root dry weight increased as the number of leaves
increased. Plants with 35 leaves showed the greatest plant growth.
Net photosynthetic rate was positively related to increasing leaf
numbers with plants having over 25 leaves showing the greatest
photosynthetic rates. On the other hand, there were no significant
differences in chlorophyll content and root activity among treatments
with different leaf numbers. The ratio of LYS infection was also
greater in plants having 25-30 leaves, than in those having leaf
numbers. Plants with different leaf numbers and LYS infection
showed a variation in fruit quality, although LYS did not
significantly affect fruit quality except net index. The plants having
20 leaves that showed LYS developed fruits that had significantly
smaller flesh (mesocarp) thickness than, the plants having greater numbers of leaves. The higher sugar contents of fruits were found
in the plants having 35 leaves whether they showed LYS (12.1°Bx)
or not (12.5°Bx). Therefore, leaving more than 25 healthy leaves per
plant was recommended for minimizing damage from LYS.OAIID:oai:osos.snu.ac.kr:snu2015-01/104/0000027607/11ADJUST_YN:NEMP_ID:A075898DEPT_CD:517CITE_RATE:0FILENAME:(이희주)effect_of_total_leaf_numbers_on_the_growth_and_fruit_quality_in_muskmelon_plants_showing_leaf_yell··.pdfDEPT_NM:식물생산과학부CONFIRM:
Controlling Ferromagnetic Easy Axis in a Layered MoS2 Single Crystal
We report the effective methods to induce weak ferromagnetism in pristine MoS2 persisting up to room temperature with the improved transport property, which would lead to new spintronics devices. The hydrogenation of MoS2 by heating at 300 degrees C for 1 h leads to the easy axis out of plane, while the irradiation of proton with a dose of 1 x 10(13) P/cm(2) leads to the easy axis in plane. The theoretical modeling supports such magnetic easy axes.open16
Validity of gait parameters for hip flexor contracture in patients with cerebral palsy
Background: Psoas contracture is known to cause abnormal hip motion in patients with cerebral palsy. The authors investigated the clinical relevance of hip kinematic and kinetic parameters, and 3D modeled psoas length in terms of discriminant validty, convergent validity, and responsiveness. Methods: Twenty-four patients with cerebral palsy (mean age 6.9 years) and 28 normal children (mean age 7.6 years) were included. Kinematic and kinetic data were obtained by three dimensional gait analysis, and psoas lengths were determined using a musculoskeletal modeling technique. Validity of the hip parameters were evaluated. Results: In discriminant validity, maximum psoas length (effect size r = 0.740), maximum pelvic tilt (0.710), maximum hip flexion in late swing (0.728), maximum hip extension in stance (0.743), and hip flexor index (0.792) showed favorable discriminant ability between the normal controls and the patients. In convergent validity, maximum psoas length was not significantly correlated with maximum hip extension in stance in control group whereas it was correlated with maximum hip extension in stance (r = -0.933, p < 0.001) in the patients group. In responsiveness, maximum pelvic tilt (p = 0.008), maximum hip extension in stance (p = 0.001), maximum psoas length (p < 0.001), and hip flexor index (p < 0.001) showed significant improvement post-operatively. Conclusions: Maximum pelvic tilt, maximum psoas length, hip flexor index, and maximum hip extension in stance were found to be clinically relevant parameters in evaluating hip flexor contracture.Y
Photocatalytic Activity of Titanate Nanotube Powders in a Hybrid Pollution Control System
The photocatalytic activity on decomposition of Rhodamine B (RB) of titanate nanotubes (TNTs) synthesized by alkali hydrothermal treatment method was evaluated using a microwave/UV/photocatalyst hybrid system. The effects of each element technique as well as the synergy effects on decomposition of organic material were investigated. When TNTs were ion-exchanged with HCl, Na+ content was reduced from 8.36 wt% to 0.03 wt%, whereas the TNTs calcined at 723 K was phase-transformed into anatase structure. The RB decomposition rate increased with TNTs dosage as well as with microwave intensity. Effect of addition of auxiliary oxidants on photocatalytic decomposition of RB was also investigated. When ozone was added, the decomposition rate increased with the amount of ozone added. When H2O2 was used as the auxiliary oxidant, however, addition of H2O2 exceeding a threshold amount caused reduction of decomposition rate. A synergy effect was observed when H2O2 addition was combined with microwave-assisted photocatalysis
Comparison between a reanalyzed product by 3-dimensional variational assimilation technique and observations in the Ulleung Basin of the East/Japan Sea
Author Posting. © Elsevier B.V., 2009. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Journal of Marine Systems 78 (2009): 249-264, doi:10.1016/j.jmarsys.2009.02.017.Reanalyzed products from a MOM3-based East Sea Regional Ocean Model with a 3-
dimentional variational data assimilation module (DA-ESROM), have been compared
with the observed hydrographic and current datasets in the Ulleung Basin (UB) of the
East/Japan Sea (EJS). Satellite-borne sea surface temperature and sea surface height
data, and in-situ temperature profiles have been assimilated into the DA-ESROM. The
performance of the DA-ESROM appears to be efficient enough to be used in an
operational ocean forecast system.
Comparing with the results from Mitchell et al. (2005a), the DA-ESROM fairly well
simulates the high variability of the Ulleung Warm Eddy and Dok Cold Eddy as well as
the branching of the Tsushima Warm Current in the UB. The overall root-mean-square
error between 100m temperature field reproduced by the DA-ESROM and the observed
100-dbar temperature field is 2.1°C, and the spatially averaged grid-to-grid correlation
between the two temperature fields is high with a mean value of 0.79 for the intercomparison
period.
The DA-ESROM reproduces the development of strong southward North Korean
Cold Current (NKCC) in summer consistent with the observational results, which is
thought to be an improvement of the previous numerical models in the EJS. The
reanalyzed products show that the NKCC is about 35 km wide, and flows southward
along the Korean coast from spring to summer with maximum monthly mean volume
transport of about 0.8 Sv in August-September.The major part of this works was conducted with financial support by Agency for Defense Development under the contract UD031003AD. The first and seventh authors were supported at the final stage of this work by KORDI’s research projects (PE9830Q and PG47100). The second author was supported by EAST-I Program of the Ministry of Maritime Affairs and Fisheries
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