LIBROS DEL AUTOR: rangaraj rangayyan

11 resultados para LIBROS DEL AUTOR: rangaraj rangayyan

rangaraj rangayyan Eliminar filtro Quitar filtros
  • Digital Image Processing for Ophthalmology
    Anna Ells / Faraz Oloumi / Rangaraj Rangayyan
    The monitoring of the effects of retinopathy on the visual system can be assisted by analyzing the vascular architecture of the retina. This book presents methods based on Gabor filters to detect blood vessels in fundus images of the retina. Forty images of the retina from the Digital Retinal Images for Vessel Extraction (DRIVE) database were used to evaluate the performance of...
    Disponible

    75,71 €

  • Acoustical Impulse Response Functions of Music Performance Halls
    Douglas Frey / Rangaraj Rangayyan / Victor Coelho
    Digital measurement of the analog acoustical parameters of a music performance hall is difficult. The aim of such work is to create a digital acoustical derivation that is an accurate numerical representation of the complex analog characteristics of the hall. The present study describes the exponential sine sweep (ESS) measurement process in the derivation of an acoustical impu...
    Disponible

    66,64 €

  • Acoustical Impulse Response Functions of Music Performance Halls
    Douglas Frey / Rangaraj Rangayyan / Victor Coelho
    Digital measurement of the analog acoustical parameters of a music performance hall is difficult. The aim of such work is to create a digital acoustical derivation that is an accurate numerical representation of the complex analog characteristics of the hall. The present study describes the exponential sine sweep (ESS) measurement process in the derivation of an acoustical impu...
    Disponible

    50,46 €

  • Computer-Aided Detection of Architectural Distortion in Prior Mammograms of Interval Cancer
    J.E. Leo Desautels / Rangaraj Rangayyan / Shantanu Banik
    Architectural distortion is an important and early sign of breast cancer, but because of its subtlety, it is a common cause of false-negative findings on screening mammograms. Screening mammograms obtained prior to the detection of cancer could contain subtle signs of early stages of breast cancer, in particular, architectural distortion. This book presents image processing and...
    Disponible

    48,93 €

  • Fractal Analysis of Breast Masses in Mammograms
    Rangaraj M. Rangayyan / Thanh M. Cabral
    Fractal analysis is useful in digital image processing for the characterization of shape roughness and gray-scale texture or complexity. Breast masses present shape and gray-scale characteristics in mammograms that vary between benign masses and malignant tumors. This book demonstrates the use of fractal analysis to classify breast masses as benign masses or malignant tumors ba...
    Disponible

    50,55 €

  • Fractal Analysis of Breast Masses in Mammograms
    Rangaraj M. Rangayyan / Thanh M. Cabral
    Fractal analysis is useful in digital image processing for the characterization of shape roughness and gray-scale texture or complexity. Breast masses present shape and gray-scale characteristics in mammograms that vary between benign masses and malignant tumors. This book demonstrates the use of fractal analysis to classify breast masses as benign masses or malignant tumors ba...
    Disponible

    48,10 €

  • Content-based Retrieval of Medical Images
    Paulo Mazzoncini de Azevedo-Marques / Rangaraj Rangayyan
    Content-based image retrieval (CBIR) is the process of retrieval of images from a database that are similar to a query image, using measures derived from the images themselves, rather than relying on accompanying text or annotation. To achieve CBIR, the contents of the images need to be characterized by quantitative features; the features of the query image are compared with th...
    Disponible

    48,37 €

  • Digital Image Processing for Ophthalmology
    Anna L. Ells / Rangaraj Rangayyan / Xiaolu Zhu
    Fundus images of the retina are color images of the eye taken by specially designed digital cameras. Ophthalmologists rely on fundus images to diagnose various diseases that affect the eye, such as diabetic retinopathy and retinopathy of prematurity. A crucial preliminary step in the analysis of retinal images is the identification and localization of important anatomical struc...
    Disponible

    41,87 €

  • Modeling and Analysis of Shape with Applications in Computer-aided Diagnosis of Breast Cancer
    Denise Guliato / Rangaraj Rangayyan
    Malignant tumors due to breast cancer and masses due to benign disease appear in mammograms with different shape characteristics: the former usually have rough, spiculated, or microlobulated contours, whereas the latter commonly have smooth, round, oval, or macrolobulated contours. Features that characterize shape roughness and complexity can assist in distinguishing between ma...
    Disponible

    50,06 €

  • Analysis of Oriented Texture with application to the Detection of Architectural Distortion in Mammograms
    Fábio J Ayres / J. E. Leo Desautels / Rangaraj M Rangayyan
    The presence of oriented features in images often conveys important information about the scene or the objects contained; the analysis of oriented patterns is an important task in the general framework of image understanding. As in many other applications of computer vision, the general framework for the understanding of oriented features in images can be divided into low- and ...
    Disponible

    54,44 €

  • Landmarking and Segmentation of 3D CT Images
    Graham Boag / Rangaraj Rangayyan / Shantanu Banik
    Segmentation and landmarking of computed tomographic (CT) images of pediatric patients are important and useful in computer-aided diagnosis (CAD), treatment planning, and objective analysis of normal as well as pathological regions. Identification and segmentation of organs and tissues in the presence of tumors are difficult. Automatic segmentation of the primary tumor mass in ...
    Disponible

    54,62 €