Results 101 to 110 of about 81,242 (307)
FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Robust Evolution Method of Active Contour Models and Application in Segmentation of Image Sequence
Journal of Electrical and Computer Engineering, 2018 Active contour models are widely used in image segmentation. In order to obtain ideal object boundary, researchers utilize various information to define new models for image segmentation. However, the models could not meet all scenes of image.
Guoqi Liu, Haifeng Li
doaj +1 more source
Flexible shape extraction for micro/nano scale structured surfaces.
, 2009 Surface feature is the one of the most important factors affecting the functionality and reliability of micro scale patterned surfaces. For micro scale patterned surface characterisation, it’s important to extract the surface feature effectively and ...
Blunt, Liam, Jiang, Xiang, Zhu, Hao
core
pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source
Digital Rebirth of Dongba Pattern: An Improved Active Contour Model for Pattern Contour Extraction
IEEE AccessIn response to the time-consuming and laborious problem of manually drawing elements in existing poster designs, this paper proposes a method for extracting the contours of Dongba patterns based on improved active contour model.
Yuan Li, Tao Wu, Rongbing Fu, En Lu
doaj +1 more source
Advances in Electrical and Electronic Engineering, 2019 Clinical retinal image analysis is an import aspect of clinical diagnosis in ophthalmology. Retinopathy of Prematurity (ROP) represents one of the most severe retinal disorders in prematurely born infants. One of the ROP clinical signs is the presence of
Jan Kubicek +7 more
doaj +1 more source
Active Contour Method with Separate Global Translation and Local Deformation
, 2009 Active Contour can describe targets accurately and has been widely used in image segmentation and target tracking.. Its main drawback is huge computation that is still not well resolved.
Fan BJ(范保杰) +2 more
core
A background robust active appearance model using active contour technique
, 2019 This paper proposes an active contour-based active appearance model (AAM) that is robust to a cluttered background and a large motion. The proposed AAM fitting algorithm consists of two alternating procedures: active contour fitting to find the contour ...
Kim, D, Jaewon Sung
core +1 more source
Achieving the Way for Automated Segmentation of Nuclei in Cancer Tissue Images through Morphology-Based Approach: a Quantitative Evaluation [PDF]
, 2010 In this paper we address the problem of nuclear segmentation in cancer tissue images, that is critical for specific protein activity quantification and for cancer diagnosis and therapy.
MACII E. +4 more
core +1 more source
FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +1 more source