Sökning: "vector quantization"

Visar resultat 16 - 19 av 19 uppsatser innehållade orden vector quantization.

  1. 16. Implementation and Evaluation of Image Retrieval Method Utilizing Geographic Location Metadata

    Uppsats för yrkesexamina på avancerad nivå, Teknisk-naturvetenskapliga fakulteten

    Författare :Magnus Lundstedt; [2009]
    Nyckelord :image retrieval; geographic metadata; histogram; texture; dbscan; vector quantization; color spaces; meda database;

    Sammanfattning : Multimedia retrieval systems are very important today with millions of content creators all over the world generating huge multimedia archives. Recent developments allows for content based image and video retrieval. These methods are often quite slow, especially if applied on a library of millions of media items. LÄS MER

  3. 17. Optimization of Audio Processing algorithms (Reverb) on ARMv6 family of processors

    Master-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Författare :Farzad Foroughi Abari; [2008]
    Nyckelord :audio processing; reverb; implementation; ARM processors; optimization;

    Sammanfattning : Audio processing algorithms are increasingly used in cell phones and today’s customers are placing more demands on cell phones. Feature phones, once the advent of mobile phone technology, nowadays do more than just providing the user with MP3 play back or advanced audio effects. LÄS MER

  4. 18. Video Coding Based on the Kantorovich Distance

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Martin Östman; [2004]
    Nyckelord :Technology; Video coding; image compression; Kantorovich; transportation plan; distance function; TEKNIKVETENSKAP;

    Sammanfattning : In this Master Thesis, a model of a video coding system that uses the transportation plan taken from the calculation of the Kantorovich distance is developed. The coder uses the transportation plan instead of the differential image and sends it through blocks of transformation, quantization and coding. LÄS MER

  5. 19. Vektorkvantisering för kodning och brusreducering

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Per Cronvall; [2004]
    Nyckelord :Technology; Image coding; video coding; image compression; video compression; de-noising; vector quantization; VQ; NLIVQ; Hexagonal Close Packing; TEKNIKVETENSKAP;

    Sammanfattning : This thesis explores the possibilities of avoiding the issues generally associated with compression of noisy imagery, through the usage of vector quantization. By utilizing the learning aspects of vector quantization, image processing operations such as noise reduction could be implemented in a straightforward way. LÄS MER