نتایج جستجو برای: circular hough transform

تعداد نتایج: 181771  

2007
D. L. Rodrigues José Gaspar

The present work focus on the identification of malignant neoplasias in breast by using the Hough Transform in digital images. A detector of circumference was implemented based on the Hough Transform once the pattern to identify is circular. The detector presented here was developed using MatLab, and was applied to detect circumferences in tomography images.

Journal: :Traitement du Signal 2010
Rachid Belaroussi Jean-Philippe Tarel

We present a real-time approach for circular and polygonal road signs detection in still images, regardless of their pose and orientation. Object detection is performed using a Hough like transform based on accumulation on pairs of points with their gradients. Circular and polygonal (non triangular) traffic signs are detected by the so-called Bilateral Chinese Transform BCT. Triangular traffic ...

Journal: :International Journal of Applied Mathematics and Computer Science 2008

2012
Amit Bendale Aditya Nigam Surya Prakash Phalguni Gupta

This paper presents an efficient iris segmentation algorithm. It uses an improved circular Hough transform to detect the inner boundary and the integro-differential operator to detect the outer boundary of iris from a given eye image. Search space of the standard circular Hough transform is reduced from three dimensions (center coordinates and radius) to only one dimension, which is the radius....

2008
J. Prakash K. Rajesh

In this paper we propose a novel method for human face segmentation using the elliptical structure of the human head. It makes use of the information present in the edge map of the image. In this approach we use the fact that the eigenvalues of covariance matrix represent the elliptical structure. The large and small eigenvalues of covariance matrix are associated with major and minor axial len...

2013
Noureddine Cherabit Fatma Zohra Chelali Amar Djeradi

Th is article p resents a robust method for detecting iris features in frontal face images based on circular Hough transform. The software of the applicat ion is based on detecting the circles surrounding the exterio r iris pattern from a set of facial images in d ifferent color spaces. The circular Hough transform is used for this purpose. First an edge detection technique is used for finding ...

This paper presents an automated method for detecting microaneurysms in the retinal angiographic images by using image processing techniques. In the presented method, in order to fade or remove the pseudo images, first retinal images are pre-processed. Then microaneurysms are identified by circular Hough transform. In the existing methods of dete...

This paper presents an automated method for detecting microaneurysms in the retinal angiographic images by using image processing techniques. In the presented method, in order to fade or remove the pseudo images, first retinal images are pre-processed. Then microaneurysms are identified by circular Hough transform. In the existing methods of dete...

Journal: :KERNEL 2022

Biometrik merupakan salah satu teknologi yang berkembang pesat saat ini, memungkinkan komputer untuk mengidentifikasi seseorang berdasarkan bagian tubuh manusia dinilai unik dan tidak akan berubah-ubah. Salah bisa digunakan proses pengenalan adalah iris mata. Untuk mendapatkan biometrik dengan hasil baik maka diperlukan deteksi Pada penelitian ini diusulkan metode Watershed Circular Hough Trans...

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