نتایج جستجو برای: parameter of segmentation

تعداد نتایج: 21185115  

Journal: :iranian journal of medical physics 0
mohammad hossein miran beygi faculty of electrical and computer engineering, tarbiat modares university, tehran, iran bahareh azarian protein-chemistry laboratory, biotechnology research center, pasteur institute of iran, tehran, iran ali gooya faculty of electrical and computer engineering, tarbiat modares university, tehran, iran

introduction two-dimensional gel electrophoresis (2dge) is a powerful technique in proteomics for protein separation. in this technique, spot segmentation is an essential stage, which can be challenging due to problems such as overlapping spots, streaks, artifacts and noise. watershed transform is one of the common methods for image segmentation. nevertheless, in 2dge image segmentation, the no...

2009
Wen-Hung Liao Chien-An Lai

The proliferation of digital cameras has changed the way we create and share photos. Novel forms of photo composition and reproduction have surfaced in recent years. In this sketch, we present an automatic caricature generation system using transformative approaches. By combing facial feature detection, image segmentation and image warping/morphing techniques, the system is able to generate sty...

Arman Rahmim Maryam Shirmohammad Mohammad Reza Ay, Saeed Sarkar

Introduction:  The  advent  of  dual-modality  PET/CT  scanners  has  revolutionized  clinical  oncology  by  improving lesion localization and facilitating treatment planning for radiotherapy. In addition, the use of  CT images for CT-based attenuation correction (CTAC) decreases the overall scanning time and creates  a noise-free  attenuation  map  (6map).  CTAC  methods  include  scaling,  s...

Background: Multiple Sclerosis (MS) is a degenerative disease of central nervous system. MS patients have some dead tissues in their brains called MS lesions. MRI is an imaging technique sensitive to soft tissues such as brain that shows MS lesions as hyper-intense or hypo-intense signals. Since manual segmentation of these lesions is a laborious and time consuming task, automatic segmentation ...

Journal: :iranian journal of radiology 0
ihab elaff computer engineering department, faculty of engineering, adnan menderes university, aydin, turkey; computer engineering department, faculty of engineering, adnan menderes university, aydin, turkey. tel: +90-2562137503, fax: +90-2562136686

materials and methods the segmentation process is evaluated using four different clustering methods with different number of clusters where some dti scalar indices for 10 human brains are processed. results the aim was to produce results with less segmentation error and a lower computational cost while attempting to minimizing boundary overlapping and minimizing the effect of artifacts due to m...

Journal: :journal of computer and robotics 0
ali borumandnia islamic azad university of south tehran jamshid shanbehzadeh tarbiat moalem

this paper presents, a hybrid method, low-resolution and high-resolution, for persian page segmentation. in the low-resolution page segmentation, a pyramidal image structure is constructed for multiscale analysis and segments document image to a set of regions. by high-resolution page segmentation, by connected components analysis, each region is segmented to homogeneous regions and identifying...

Cells grow and then need a very neat method to create new cells that work properly to maintain the health of the body. When the ability to control the growth of the cells is lost, they are unconsidered and often divided without order. Exemplified cells form a tissue mass called the tumor. In fact, brain tumors are abnormal and uncontrolled cell proliferations. Segmentation methods are used in b...

Introduction Two-dimensional gel electrophoresis (2DGE) is a powerful technique in proteomics for protein separation. In this technique, spot segmentation is an essential stage, which can be challenging due to problems such as overlapping spots, streaks, artifacts and noise. Watershed transform is one of the common methods for image segmentation. Nevertheless, in 2DGE image segmentation, the no...

2011
Brigitte Rafael Stefan Oertl Michael Affenzeller Stefan Wagner

Genetic algorithms have been introduced to the field of media segmentation including image, video, and also music segmentation since segmentation problems usually have complex fitness landscapes. Music segmentation can provide insight into the structure of a music composition so it is an important task in music information retrieval (MIR). The authors have already presented the application of g...

Journal: :مهندسی صنایع 0
فروغ ایسوند دانش آموخته کارشناسی ارشد مهندسی فناوری اطلاعات- گرایش تجارت الکترونیکی دانشگاه صنعتی خواجه نصیرالدین طوسی منیره حسینی استادیار بخش مهندسی فناوری اطلاعات- دانشکده مهندسی صنایع دانشگاه صنعتی خواجه نصیرالدین طوسی

in today's competitiveenvironment, customers are the most important asset to any company. therefore,in order to retain customers, it is essential to understandtheirbehaviour for developing effective strategies. one of the most commonmethods for customer analysis is market segmentation that helps companies todevelop marketing technique by dividing market into several smaller homogeneousgrou...

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