Sökning: "bildkodning"

Hittade 5 uppsatser innehållade ordet bildkodning.

  1. 1. Improving compression ratio in backup

    Master-uppsats, Informationskodning; Tekniska högskolan

    Författare :Mattias Zeidlitz; [2012]
    Nyckelord :Compression; image coding; lossless; transcoding; interfile; Kompression; komprimering; bildkodning; förlustfri; transcoding; interfil;

    Sammanfattning : This report describes a master thesis performed at Degoo Backup AB in Stockholm, Sweden in the spring of 2012. The purpose was to design a compression suite in Java which aims to improve the compression ratio for file types assumed to be commonly used in a backup software. LÄS MER

  3. 2. Design and Implementation of an Analog Video Signal Quality Measuring Software for Component Video

    Master-uppsats, Bildkodning

    Författare :Carl Ljungström; [2010]
    Nyckelord :set-top box; analog video; signal quality; component video; video quality measurement; RGB; YPbPr; subjective measuring;

    Sammanfattning : An IP based set-top box (STB) is essentially a lightweight computer used to receive video over the Internet and convert it to analog or digital signals understood by the television. During this transformation from a digital image to an analog video signal many different types of distortions can occur. LÄS MER

  4. 3. Digital videoväxel

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Henrik Länger; Olle Eriksson; [2004]
    Nyckelord :Technology; MPEG-2; PAL; DV; DVB; DVB-C; bildkodning; digital-tv; kompet; TEKNIKVETENSKAP;

    Sammanfattning : This thesis discusses the possibilities to distribute digital video in a military vehicle. Today, an analogue system is used, which has a maximum capacity of eighteen video sources and the same number of monitors. The purpose of this thesis is to increase the systems capabilities regarding secure distribution and additional functions. LÄS MER

  5. 4. Focus controlled image coding based on angular and depth perception

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Oskar Grangert; [2003]
    Nyckelord :Technology; Image coding; Focus control; Angular percetion; Depth perception; DCT transform; TEKNIKVETENSKAP;

    Sammanfattning : In normal image coding the image quality is the same in all parts of the image. When it is known where in the image a single viewer is focusing it is possible to lower the image quality in other parts of the image without lowering the perceived image quality. LÄS MER

  7. 5. Perception-based second generation image coding using variable resolution

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Joakim Rydell; [2003]
    Nyckelord :Technology; image coding; perception; variable resolution; segmentation; TEKNIKVETENSKAP;

    Sammanfattning : In ordinary image coding, the same image quality is obtained in all parts of an image. If it is known that there is only one viewer, and where in the image that viewer is focusing, the quality can be degraded in other parts of the image without incurring any perceptible coding artefacts. LÄS MER