Sökning: "Image Pyramid"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Image Pyramid.

  1. 1. Improving fingerprint biometrics by local symmetry and fusion

    Författare :Hartwig Fronthaler; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alignment; Matching; Minutiae Extraction; Image Restoration; Multi-expert Fusion; Biometrics; Symmetry Features; Structure Tensor; Quality Assessment; Fingerprint Recognition; Image Pyramid; Enhancement; Rotational Symmetry; Cascaded Fusion; Monomodal Fusion; Fingerprint;

    Sammanfattning : Fingerprint recognition and biometrics in general have been significantly gaining attention within the last years, not least due to the biometric passport that has been introduced all over Europe and the American immigration management system US-VISIT. The tasks of fingerprint recognition can be broken down to smaller entities, i.e. LÄS MER

  3. 2. Image Analysis and Enhancement with Applications in Medicine

    Författare :Lars Floreby; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zubal; segmentation; Compton; SPECT; morphological; enhancement; multiscale; dynamic programming; motion estimation; optical flow; echocardiography; speckle; Image analysis; ultrasound; Signalbehandling; Signal processing; Fourier surface.;

    Sammanfattning : This thesis consists of six parts in which methods for image analysis and processing are studied. Two-dimensional medical images, image sequences, and three-dimensional image volumes are considered. LÄS MER

  4. 3. Face Recognition : A Single View Based HMM Approach

    Författare :Hung Son Le; Haibo Li; Josef Bigun; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; face recognition; pattern recognition; computer vision; HMM; Hidden Markov Models; contrast enhancement; pyramid fusion; image processing; Computer science; Datavetenskap;

    Sammanfattning : This dissertation addresses the challenges of giving computers the ability of doing face recognition, i.e. discriminate between different faces. Face recognition systems are commonly trained with a database of face images, becoming “familiar” with the given faces. LÄS MER

  5. 4. Extending Access : Perspectives on Business Model Innovation in Water and Sanitation Service Provision

    Författare :Caroline Jennings Saul; Anders Gustafsson; Nina Veflen; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Business Innovation; Water business; WASH; Sanitation; Digitalization; Base of the pyramid; Business Administration; Företagsekonomi;

    Sammanfattning : Many organizations are attempting to improve the well-being of people living in poverty, whether it be philanthropic, through offering transformative services, or buying into the doing well by doing good ethos of corporate Base of the Pyramid (BoP) strategies. Some of these efforts are being directed towards extending access to safely managed water and sanitation services to everyone. LÄS MER

  7. 5. Business Model Design for Social Goods and Services in Developing Economies

    Författare :Mirella Lindsay Haldimann; Heiko Gebauer; Aku Valtakoski; Ray Fisk; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : Over the past decade there have been increasing calls for alternative ways of tackling poverty problems in developing economies. Rather than aid or charity approaches that have traditionally dominated this area, an alternative line of discussion around base-of-the-pyramid approaches has emerged which emphasizes the role of innovation and pro-poor entrepreneurship. LÄS MER