Sökning: "wavelet packet"

Hittade 4 uppsatser innehållade orden wavelet packet.

  1. 1. Flow Classification of Encrypted Traffic Streams using Multi-fractal Features

    Master-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Erik Areström; [2018]
    Nyckelord :;

    Sammanfattning : The increased usage of encrypted application layer traffic is making it harder for traditional traffic categorization methods like deep packet inspection to function. Without ways of categorizing traffic, network service providers have a hard time optimizing traffic flows, resulting in worse quality of experience for the end user. LÄS MER

  3. 2. Automatic Sleep Scoring To Study Brain Resting State Networks During Sleep In Narcoleptic And Healthy Subjects : A Combination Of A Wavelet Filter Bank And An Artificial Neural Network

    Master-uppsats, Linköpings universitet/Institutionen för medicin och hälsa

    Författare :Federica Viola; [2014]
    Nyckelord :Automatic Sleep Scoring; Discrete Wavelet Transform; Filter Bank; Artificial Neural Network; Resting State Networks; Narcolepsy.;

    Sammanfattning : Manual sleep scoring, executed by visual inspection of the EEG, is a very time consuming activity, with an inherent subjective decisional component. Automatic sleep scoring could ease the job of the technicians, because faster and more accurate. LÄS MER

  4. 3. Wavelet Based SPIHT Compression for DICOM Images

    Master-uppsats, Linnéuniversitetet/Institutionen för datavetenskap, fysik och matematik, DFM

    Författare :Iyyappan Dhasarathan; Vimal Rathinasamy; Tang Cui; [2011]
    Nyckelord :Image Compression; DICOM; SPIHT.;

    Sammanfattning : Generally, image viewers do not include the scalability for the image compressionand ecient encoding and decoding for easy transmission. They alsonever consider the specic requirements of the heterogeneous networks constitutedby the Global Packet Radio Service(GPRS), Universal Mobile TelecommunicationSystem(UMTS), Wireless Local Area Network(WLAN) and DigitalVideo Broadcasting(DVB-H). LÄS MER

  5. 4. Signal Processing Using Wavelets in a Ground Penetrating Radar System

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Thomas Andréasson; [2003]
    Nyckelord :Technology; wavelet; wavelet packet; feature extraction; mine detection; TEKNIKVETENSKAP;

    Sammanfattning : This master's thesis explores whether time-frequency techniques can be utilized in a ground penetrating radar system. The system studied is the HUMUS system which has been developed at FOI, and which is used for the detection and classification of buried land mines. The objective of this master's thesis is twofold. LÄS MER