@InProceedings{ZaidOlivOlivMarm:2001:ApBaJP,
               author = "Zaid, Azza Ouled and Olivier, Christian and Olivier, Alata and 
                         Marmoiton, Fran{\c{c}}ois",
                title = "Transform image coding with global thresholding: application to 
                         baseline JPEG",
            booktitle = "Proceedings...",
                 year = "2001",
               editor = "Borges, Leandro D{\'{\i}}bio and Wu, Shin-Ting",
                pages = "164--171",
         organization = "Brazilian Symposium on Computer Graphics and Image Processing, 14. 
                         (SIBGRAPI)",
            publisher = "IEEE Computer Society",
              address = "Los Alamitos",
                 note = "The conference was held in Florian{\'o}polis, SC, Brazil, from 
                         October 15 to 18.",
             keywords = "DCT, image coding, thresholding, modeling, quantization.",
             abstract = "Many image compression schemes perform the discrete cosine 
                         transform (DCT) to represent an image in frequency space. An 
                         analysis of a suite of images confirms that the luminance AC 
                         coefficients can be modeled by a Laplacian distribution. The 
                         distribution model can be used to drop the insignificant 
                         coefficients. In this paper we develop an image-adaptive JPEG 
                         encoding algorithm that incorporate global thresholding and near 
                         optimal quantization approach based on Lagrangian multiplier. 
                         Simulation results demonstrate that, with our thresholding 
                         technique, we can improve the reconstructed image quality compared 
                         to the one provided by other DCT image coding schemes without 
                         thresholding.",
  conference-location = "Florian{\'o}polis, SC, Brazil",
      conference-year = "15-18 Oct. 2001",
                  doi = "10.1109/SIBGRAPI.2001.963051",
                  url = "http://dx.doi.org/10.1109/SIBGRAPI.2001.963051",
             language = "en",
         organisation = "SBC - Brazilian Computer Society",
                  ibi = "6qtX3pFwXQZeBBx/wkxu6",
                  url = "http://urlib.net/ibi/6qtX3pFwXQZeBBx/wkxu6",
           targetfile = "164-171.pdf",
        urlaccessdate = "2024, Apr. 27"
}