Sökning: "h.264"

Visar resultat 11 - 15 av 53 uppsatser innehållade ordet h.264.

  1. 11. Deep Learning Methods for Streaming Image Reconstruction in Fixed-camera Settings

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Johan Förberg; [2017]
    Nyckelord :image reconstruction; image enhancement; super-resolution; artefacts removal; deep learning; machine learning; convolutional neural networks; computer vision; Mathematics and Statistics;

    Sammanfattning : A streaming video reconstruction system is described and implemented as a convolutional neural network. The system performs combined 2x super-resolution and H.264 artefacts removal with a processing speed of about 6 frames per second at 1920×1080 output resolution on current workstation-grade hardware. LÄS MER

  3. 12. Effect of additional compression features on h.264 surveillance video

    Kandidat-uppsats, Mittuniversitetet/Avdelningen för informationssystem och -teknologi

    Författare :Erik Comstedt; [2017]
    Nyckelord :Video stream; compression; frame rate; GOP; surveillance;

    Sammanfattning : In video surveillance business, a recurring topic of discussion is quality versus data usage. A higher quality allows for more details to be captured at the cost of a higher bit rate, and for cameras monitoring events 24 hours a day, limiting data usage can quickly become a factor to consider. LÄS MER

  4. 13. Denoising and renoising of videofor compression

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Anders Derk Gärdenäs; [2017]
    Nyckelord :;

    Sammanfattning : Videos contain increasingly more data due to increased resolutions. Codecs are further developed and improved to reduce the amount of data in videos. One difficulty with video encoding is noise handling, it's expensive to store noise and the final result is not always aesthetically pleasing. LÄS MER

  5. 14. Cryptographic Attestation of the Origin of Surveillance Images

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Anton Eliasson; [2017]
    Nyckelord :Video signing; Video surveillance; H.264 AVC; Public-key cryptography; Axis Communications AB; Technology and Engineering;

    Sammanfattning : A method is devised that provides authentication and integrity protection for H.264 encoded surveillance video. A digital signature is created at the H. LÄS MER

  7. 15. Weighted Combination of Sample Based and Block Based Intra Prediction in Video Coding

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Signe Sidwall Thygesen; [2016]
    Nyckelord :Video Coding; Intra Prediction; Mathematics and Statistics;

    Sammanfattning : The latest standard within video compression, HEVC/H.265, was released during 2013 and provides a significant improvement from its predecessor AVC/H.264. However, with a constantly increasing demand for high denition video and streaming of large video files, there are still improvements that can be done. LÄS MER