Sökning: "Distorted Images"

Visar resultat 16 - 20 av 27 uppsatser innehållade orden Distorted Images.

  1. 16. Perceptual Image Quality Prediction Using Region of Interest Based Reduced Reference Metrics Over Wireless Channel

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Kunadha Raju R V Krishnam Raju; [2016]
    Nyckelord :Reduced Reference Metric; Visual Attention; Rayleigh Fading; Quality of Experience; Image Quality Assessment.;

    Sammanfattning : As there is a rapid growth in the field of wireless communications, the demand for various multimedia services is also increasing. The data that is being transmitted suffers from distortions through source encoding and transmission over errorprone channels. Due to these errors, the quality of the content is degraded. LÄS MER

  3. 17. DEVELOPMENT OF AN ROI AWARE FULL-REFERENCE OBJECTIVE PERCEPTUAL QUALITY METRIC ON IMAGES OVER FADING CHANNEL

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :SRI LOHITH GOGINENI; [2016]
    Nyckelord :Visual Information Fidelity; Quality of Experience; Image; Full-Reference; Objective Perceptual Metrics; Region-of-Interest;

    Sammanfattning : In spite of technological advances in wireless systems, transmitted data suffers from impairments through both lossy source coding and transmission overerror prone channels. Due to these errors, the quality of multimedia content is degraded. LÄS MER

  4. 18. Segmentation of Cone Beam CT in Stereotactic Radiosurgery

    Master-uppsats, KTH/Skolan för teknik och hälsa (STH)

    Författare :Awais Ashfaq; [2016]
    Nyckelord :Cone Beam CT; Convolutional Neural Networks; Image Segmentation; Leksell Gamma Knife Icon; Deep Learning.; Cone Beam CT; neurala nätverk baserade på faltning; bildsegmentering; Leksell Gamma Knife Icon; Djup inlärning.;

    Sammanfattning : C-arm Cone Beam CT (CBCT) systems – due to compact size, flexible geometry and low radiation exposure – inaugurated the era of on-board 3D image guidance in therapeutic and surgical procedures. Leksell Gamma Knife Icon by Elekta introduced an integrated CBCT system to determine patient position prior to surgical session, thus advancing to a paradigm shift in facilitating frameless stereotactic radiosurgeries. LÄS MER

  5. 19. Natural image distortions and optical character recognition accuracy

    Kandidat-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Filip Lundqvist; Olle Wallberg; [2016]
    Nyckelord :;

    Sammanfattning : Current state of the art optical character recognition tools are trained using high quality image datasets. In practical applications, natural images used for character recognition willnot always be of high quality. LÄS MER

  7. 20. Creation & Assessment of a Video Quality Ruler

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Maya Shah; [2016]
    Nyckelord :Mathematics and Statistics;

    Sammanfattning : Image quality has always been a matter of great importance for anyone working with or consuming images and videos. Images and videos are, in general, for human consumption. Thus, image quality is essentially a subjective attribute of an image. LÄS MER