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92 papers found.
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Hierarchical complexity control algorithm for HEVC based on coding unit depth decision

The next-generation High Efficiency Video Coding (HEVC) standard reduces the bit rate by 44% on average compared to the previous-generation H.264 standard, resulting in higher encoding complexity. To achieve normal video coding in power-constrained devices and minimize the rate distortion degradation, this paper proposes a hierarchical complexity control algorithm for HEVC on the...

A novel texture-based asymmetric visibility threshold model for stereoscopic video coding

Asymmetric stereoscopic video coding is becoming increasingly popular, as it can reduce the bandwidth required for stereoscopic 3D delivery without degrading the visual quality. Based on the perceptual theory of binocular suppression, the left and right views of stereoscopic video are coded with different levels of quality. However, existing asymmetric perceptual coding...

Reforestation-induced changes of landscape composition and configuration modulate freshwater supply and flooding risk of tropical watersheds

Impact of changes in land cover and land use on hydrological service of tropical watersheds is one of the focal research tropics in both hydrology and Land Cover Land Use Changes (LCLUC). Land fragmentation is an important feature of LCLUC, however, its impact on hydrological service of tropical watershed is unclear despite a few theoretical frameworks. In this paper, we...

Detection and quantification of dengue virus using a novel biosensor system based on dengue NS3 protease activity

Contributions Conceptualization: Ming-Shu Hsieh, Hsin-Wei Chen. Data curation: Ming-Shu Hsieh, Mei-Yu Chen. 16 / 19 Investigation: Ming-Shu Hsieh, Mei-Yu Chen, Chun-Hsiang Hsieh. Resources: Chien-Hsiung Pan

Video quality assessment using motion-compensated temporal filtering and manifold feature similarity

Well-performed Video quality assessment (VQA) method should be consistent with human visual systems for better prediction accuracy. In this paper, we propose a VQA method using motion-compensated temporal filtering (MCTF) and manifold feature similarity. To be more specific, a group of frames (GoF) is first decomposed into a temporal high-pass component (HPC) and a temporal low...

Novel copy number variation of the TGFβ3 gene is associated with TGFβ3 gene expression and duration of fertility traits in hens

Improvements in the duration of fertility (DF) could increase the interval between successive artificial inseminations, thereby decreasing the cost associated with production of hatching eggs. The molecular mechanisms involved in DF in hens remains under-explored. In this study, expression levels of the transforming growth factor-β genes (TGFβs: TGFβ1, TGFβ2, TGFβ3) were...

Spatially differentiated trends in urbanization, agricultural land abandonment and reclamation, and woodland recovery in Northern China

, United States of AmericaChao Wang, Qiong Gao, Xian Wang & Mei Yu AuthorsSearch for Chao Wang in:Nature Research journals • PubMed • Google ScholarSearch for Qiong Gao in:Nature Research journals • PubMed ... • Google ScholarSearch for Xian Wang in:Nature Research journals • PubMed • Google ScholarSearch for Mei Yu in:Nature Research journals • PubMed • Google Scholar Contributions Q.G. and M.Y. designed the

Stock Market Autoregressive Dynamics: A Multinational Comparative Study with Quantile Regression

We study the nonlinear autoregressive dynamics of stock index returns in seven major advanced economies (G7) and China. The quantile autoregression model (QAR) enables us to investigate the autocorrelation across the whole spectrum of return distribution, which provides more insightful conditional information on multinational stock market dynamics than conventional time series...

Joint processing and fast encoding algorithm for multi-view depth video

The multi-view video plus depth format is the main representation of a three-dimensional (3D) scene. In the 3D extension of high-efficiency video coding (3D-HEVC), the main framework for depth video is similar to that of color video. However, because of the limitation of the mainstream capture technologies, depth video is inaccurate and inconsistent. In addition, the depth video...

Discerning Fragmentation Dynamics of Tropical Forest and Wetland during Reforestation, Urban Sprawl, and Policy Shifts

Qiong Gao 0 Mei Yu 0 Ben Bond-Lamberty, DOE Pacific Northwest National Laboratory, United States of America 0 Department of Environmental Sciences and Institute for Tropical Ecosystem Studies, University

Effects of auricular therapy to body composition in young asian women

This study investigated the efficacy of auricular therapy using semen vaccariae (SV) via auricular point sticking on weight loss, changes to waist circumference, and waist-to-hip ratio.The study used a randomized design with one control group and one experimental group consisting of young Asian women with waist circumferences ≥ 80 cm.The total sample size was 50 young women who...

Effects of auricular therapy to body composition in young asian women

This study investigated the efficacy of auricular therapy using semen vaccariae (SV) via auricular point sticking on weight loss, changes to waist circumference, and waist-to-hip ratio.The study used a randomized design with one control group and one experimental group consisting of young Asian women with waist circumferences ≥ 80 cm.The total sample size was 50 young women who...

Genetic determinants of pig birth weight variability

Background Piglet birth weight variability, a trait also known as the within-litter homogeneity of birth weight, reflects the sow’s prolificacy, because it is positively genetically correlated with preweaning mortality but negatively correlated with the mean growth of piglets during sucking. In addition, the maternal additive genetic variance and heritability has been found exist...

Using Diffusion Tensor Imaging to Evaluate Microstructural Changes and Outcomes after Radiofrequency Rhizotomy of Trigeminal Nerves in Patients with Trigeminal Neuralgia

Trigeminal neuralgia is characterized by facial pain that may be sudden, intense, and recurrent. Our aim was to investigate microstructural tissue changes of the trigeminal nerve in patients with trigeminal neuralgia resulting from neurovascular compression by diffusion tensor imaging, and to test the predictive value of diffusion tensor imaging for determining outcomes after...

Decadal Trend in Agricultural Abandonment and Woodland Expansion in an Agro-Pastoral Transition Band in Northern China

Land use land cover (LULC) changes frequently in ecotones due to the large climate and soil gradients, and complex landscape composition and configuration. Accurate mapping of LULC changes in ecotones is of great importance for assessment of ecosystem functions/services and policy-decision support. Decadal or sub-decadal mapping of LULC provides scenarios for modeling...

Involvement of oxidative stress in tri-ortho–cresyl phosphate-induced autophagy of mouse Leydig TM3 cells in vitro

Background As a plasticizer, plastic softener, and flame-retardant, tri-ortho–cresyl phosphate (TOCP) is and has been widely used in industry and reported to have a toxic effect on the male reproductive system in animals besides neurotoxicity and immunotoxicity. We have reported that TOCP inhibits spermatogenesis and induces autophagy of rat spermatogonial stem cells, but it is...

Characterization of the Promoter Regions of Two Sheep Keratin-Associated Protein Genes for Hair Cortex-Specific Expression

The keratin-associated proteins (KAPs) are the structural proteins of hair fibers and are thought to play an important role in determining the physical properties of hair fibers. These proteins are activated in a striking sequential and spatial pattern in the keratinocytes of hair fibers. Thus, it is important to elucidate the mechanism that underlies the specific transcriptional...

Effects of carbon-to-sulfur (C/S) ratio and nitrate (N) dosage on Denitrifying Sulfur cycle-associated Enhanced Biological Phosphorus Removal (DS-EBPR)

Environment -MoU/R and D Centre for Sustainable Wastewater Treatment, Beijing University of Civil Engineering and Architecture, Beijing 100044, P. R. of ChinaXiaodi Hao & Guang-Hao Chen AuthorsSearch for Mei Yu