Low Bit Rate Image Compression using BSpline Filters and Pre Filtering
نویسندگان
چکیده
منابع مشابه
Low Bit-Rate Image Compression using Adaptive Down-Sampling technique
In this paper, we are going to use a practical approach of uniform down sampling in image space and yet making the sampling adaptive by spatially varying, directional low-pass pre-filtering. The resulting down-sampled pre-filtered image remains a conventional square sample grid, and, thus, it can be compressed and transmitted without any change to current image coding standards and systems. The...
متن کاملPre and Post-Filtering for Low Bit-Rate Video Coding
We propose pre and post-lters for low bit rate video coding. The purpose of the former is to make the video sequence easier to encode, whereas the latter aims to remove coding artifacts. The proposed techniques are computation-ally eecient and lead to scalable architectures which 1) can handle varied types of video content and 2) can be adapted to the available bandwidth and computational resou...
متن کاملSpeed versus quality in low bit-rate still image compression
This paper presents a fast and modi"ed version of the embedded zero-tree wavelet (EZW) coding algorithm that is based on [4,5,15,20] for low bit-rate still image compression applications. The paper presents the trade-o! between the image compression algorithm speed and the reconstructed image quality measured in terms of PSNR. The measurements show a performance speedup by a factor of 6 in aver...
متن کاملLow-bit rate exploitation-based lossy hyperspectral image compression
Hyperspectral image compression has become increasingly important in data exploitation because of enormous data volumes and high redundancy provided by hundreds of contiguous spectral channels. Since a hyperspectral image can be viewed as a 3-dimensional (3D) image cube, many efforts have been devoted to extending 2D image compression techniques to perform 3D image compression on hyperspectral ...
متن کاملLow Bit Rate SAR Image Compression Based on Sparse Representation
Synthetic aperture radar (SAR) is an active remote sensing tool operating in the microwave range of the electromagnetic spectrum. It uses the motion of the radar transmitter to synthesize an antenna aperture much larger than the actual antenna aperture in order to yield high spatial resolution radar images (Curlander & McDonough, 1991). It has been applied to military survey, terrain mapping, a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2011
ISSN: 0975-8887
DOI: 10.5120/3691-5154