نتایج جستجو برای: region of interest detection

تعداد نتایج: 21240236  

2012
Gopal Datt Joshi Jayanthi Sivaswamy Prashanth R. S. R. Krishnadas

The task of detecting peri-papillary indicators associated with the glaucoma is challenging due to the high degree of intra-and inter-image variations commonly seen in colour retinal images. The existing approaches based on direct modeling of the region of interest fail to handle such image variations which compromises detection accuracy. In this paper, a novel detection strategy is proposed wh...

پایان نامه :0 1371

in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.

2009
Yao-Chuan Jiang Kuan-Ting Lai Chaur-Heh Hsieh Mao-Fu Lai

In this paper, we propose a novel algorithm for player detection and tracking in tennis games. The algorithm utilizes court knowledge as well as player color and edge information to extract deformable player figures. Several new techniques are presented in our algorithm: initially, the court lines are detected and reconstructed. Based on the court model, an adaptive search window is designed fo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1388

abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...

2006
Anindya Sarkar Amir Mohayemen Rahimi

1. Firstly, an entropy based feature detector is used to select regions of interest in the image. Once the regions of interest are obtained (which are of varying scales ‘scale’ being the radius of the circular region of interest), each circular feature is mapped to a square of size 11 by 11. Thus, the feature-extractor ends up with 121-dimensional features. The goal is to build proper probabili...

2011
Michèle Péporté Dana Elena Ilea Eilish Twomey Paul F. Whelan

This paper describes a novel automatic skull-stripping method for premature infant data. A skull-stripping approach involves the removal of non-brain tissue from medical brain images. The new method reduces the image artefacts, generates binary masks and multiple thresholds, and extracts the region of interest. To define the outer boundary of the brain tissue, a binary mask is generated using m...

2012
Hazar Mliki Mohamed Hammami Hanêne Ben-Abdallah

This paper presents a new system to achieve face detection and tracking in video sequences. We have performed a combination between detection and tracking modules to overcome the different challenging problems that can occur while detecting or tracking faces. Our proposed system is composed of two modules: Face detection module and face tracking module. In the face detection module, we have use...

Journal: :Pattern Recognition 2010
Luciano Oliveira Urbano Nunes Paulo Peixoto Marco Silva Fernando Moita

Fusion of laser and vision in object detection has been accomplished by two main approaches: (1) independent integration of sensor-driven features or sensor-driven classifiers, or (2) a region of interest (ROI) is found by laser segmentation and an image classifier is used to name the projected ROI. Here, we propose a novel fusion approach based on semantic information, and embodied on many lev...

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