Results 111 to 120 of about 185,121 (161)
Some of the next articles are maybe not open access.
Progressive image transmission by adaptive interpolation
2003 International Conference on Multimedia and Expo. ICME '03. Proceedings (Cat. No.03TH8698), 2003Progressive image transmission is a mechanism that transmits the most significant portion of an image, followed by its less important parts. Applications of such a mechanism include browsing large image files on the Internet. We propose an adaptive mechanism, based on the characteristics of images.
Timothy K. Shih +2 more
openaire +1 more source
Rationality in Progressive Transmission
2017A progressive transmission scheme prioritizes the code bits according to their reduction in distortion (e.g., Ref. [92]). If the original image is I, the coding is actually done to C = Ω(I), where Ω represents a unitary hierarchical subband transformation (Ref. [4]).
Jose A. García +2 more
openaire +1 more source
Fast mesh simplification for progressive transmission
2000 IEEE International Conference on Multimedia and Expo. ICME2000. Proceedings. Latest Advances in the Fast Changing World of Multimedia (Cat. No.00TH8532), 2002A very fast mesh simplification algorithm based on half-edge collapse is proposed in this work with a focus on progressive graphic transmission applications. We generalize the Quadric Error Metric (QEM) method to accommodate new topological operations. A flatness criterion is combined with the defined metric to preserve the visual quality of simplified
Wenlong Dong, Jiankun Li, C.-C. Jay Kuo
openaire +1 more source
Multiresolution multiresource progressive image transmission
IEEE Transactions on Image Processing, 1995This paper presents a new progressive image transmission (PIT) design algorithm in which the resolution and resources (rate or distortion and storage size) at each transmission stage are allowed to be prespecified. This algorithm uses the wavelet transform and tree-structured vector quantizer (TSVQ) techniques. The wavelet transform is used to obtain a
Wen-Jyi Hwang, Haluk Derin
openaire +2 more sources
Progressive Transmission of Two-Tone Images
IEEE Transactions on Communications, 1981A technique is proposed for transmitting two-tone images in a progression of stages. In the first stage, information is transmitted to allow a crude reproduction of the picture. In the following stages, the quality of the received picture is improved until a copy identical to the original is obtained.
Ottar Johnsen, Arun N. Netravali
openaire +1 more source
Progressive transmission of color-mapped images
Journal of Electronic Imaging, 2005Coded as conventional color-map addresses, a color-mapped image can be decoded only when a full color map address is available. We present the first known scheme that adds progression capability in spatial resolution as well as color resolution, enabling more flexible progression of color-mapped images. During coding, approximate pixel colors are keyed
Wai-Yin Ng, Tsz-Yam Lau, Lap-Ming Kwong
openaire +1 more source
Progressive image transmission with RCPT protection
SPIE Proceedings, 2007In this paper, a joint source-channel coding scheme is proposed for progressive image transmission over channels with both random bit errors and packet loss by using rate-compatible punctured Turbo codes (RCPT) protection only. Two technical components which are different from existing methods are presented.
Lei Yao, Lei Cao 0001, Chang Wen Chen
openaire +1 more source
Topologically Consistent Selective Progressive Transmission
2011Progressive transmission represents a viable solution to the challenges presented by the transmission of large vector data sets over the Internet. Previous implementations have considered progressive transmission as the reverse of map generalization.
Padraig Corcoran, Peter Mooney
openaire +1 more source
Progressive Medical Image Transmission and Compression
IEEE Signal Processing Letters, 2004Digital radiology places very high demands on the networking and digital storage infrastructure of hospitals. In addition to having quite stringent requirements on the quality of the images displayed to the radiologist, much of the technical challenge resides in the necessity of displaying desired images as rapidly as possible.
Reza Sham Dilmaghani +3 more
openaire +1 more source
Interactive and Adaptive Progressive Transmission of Medical Images
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007An interactive and adaptive joint source-channel coding for progressive transmission of medical images is proposed. This modality is favorable since the region of interest (RoI) is emphasized. The source compression rate is influenced by the proximity to the ROI, which includes significant diagnostic information. Also, the channel coding scalability is
Sanei, S +4 more
openaire +4 more sources