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نمایش تعداد 1-10 از 69

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    Segmentation of Blood Vessels in Fundus Color Images by Radon 

    نوع: Conference Paper
    نویسنده : رضا پوررضاشهری; حمیدرضا پوررضا; touka Banaee; Reza Pourreza Shahri; Hamid Reza Pourreza
    سال: 2010
    خلاصه:

    In this paper we have presented an algorithm

    for vessel detection in retinal color images which works based

    on local Radon transform and morphological reconstruction.

    In our previous work, the algorithm was applied to...

    On the inverse of the directional derivative operator in RN 

    نوع: Journal Paper
    نویسنده : سید مجید صابری فتحی; T T Truong; Seyed Majid Saberi Fathi
    سال: 2009
    خلاصه:

    to straight line propagation of radiation emitted by the spatial source distribution ρ. In particular, we examine the special two-dimensional case to point out the connection with the classical Radon transform. We then show how the Radon transform inversion...

    Robustness of Radon transform to white additive noise: general case study 

    نوع: Journal Paper
    نویسنده : Nacereddine, N.; Tabbone, Salvatore; Ziou, Djemel
    ناشر: IET
    سال: 2014

    The Radon transform inversion using moments 

    نوع: Journal Paper
    نویسنده : Mnatsakanov, Robert M. - Li, Shengqiao
    ناشر: Elsevier Science
    سال: 2013

    On the Generalized Quotient Integrals on Homogenous Spaces 

    نوع: Journal Paper
    نویسنده : تاج الدین دریکوند; رجبعلی کامیابی گل; محمد جانفدا; TAJEDIN DERIKVAND; Rajab Ali Kamyabi Gol; Mohammad Janfada
    سال: 2017
    خلاصه:

    A generalization of the quotient integral formula is presented and some of its

    properties are investigated. Also the relations between two function spaces related to

    the special homogeneous spaces are derived ...

    The Radon transform on function spaces related to homogenous spaces 

    نوع: Journal Paper
    نویسنده : تاج الدین دریکوند; رجبعلی کامیابی گل; محمد جانفدا; TAJEDIN DERIKVAND; Rajab Ali Kamyabi Gol; Mohammad Janfada
    سال: 2018
    خلاصه:

    We are going to study some conditions on which the Radon transform
    and its dual are invertible. Two function spaces are introduced that the Radon
    transform on which is bijective linear operator. In this regards, a reconstruction...

    Vessel Segmentation Based on Sobel Operator and Fuzzy Reasoning 

    نوع: Conference Paper
    نویسنده : فرنوش قدیری; محمدرضا اکبرزاده توتونچی; شهره حدادان; Farnoosh Ghadiri; Mohammad Reza Akbarzadeh Totonchi; Shohreh Haddadan
    سال: 2011
    خلاصه:

    and fuzzy inference. In the proposed method, the direction of linear structures are determined with Radon transform, then Sobel operator is used for extracting edges along with the predetermined direction. The combination of gradient information of vessel...

    Offline Signature Verification Using Local Radon Transform and Support Vector Machines 

    نوع: Journal Paper
    نویسنده : وحید کیانی; رضا پوررضاشهری; حمیدرضا پوررضا; vahid kiani; Reza Pourreza Shahri; Hamid Reza Pourreza
    سال: 2009
    خلاصه:

    Offline Signature Verification Using Local Radon Transform and Support Vector Machines...

    Vessel detection in retinal images using Radon transform and genetic algorithm 

    نوع: Conference Paper
    نویسنده : عادل قاضی خانی; حمیدرضا پوررضا; Adel Ghazikhani; Hamid Reza Pourreza
    سال: 2010
    خلاصه:

    We propose a novel algorithm for vessel detection in

    retinal images. The proposed algorithm incorporates Radon

    Transform(RT) and Genetic Algorithm(GA) to detect vessels. We use

    RT because vessels could ...

    A Novel Algorithm for Linear Feature Detection in Images 

    نوع: Conference Paper
    نویسنده : عادل قاضی خانی; حمیدرضا پوررضا; Adel Ghazikhani; Hamid Reza Pourreza
    سال: 2010
    خلاصه:

    We propose a novel algorithm for linear feature detection

    in images. Our algorithm is an extension to Beamlet Transform(BT).

    BT is a powerful transform for linear feature detection in images. It

    is based on the famous Radon...

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