very low-bit-rate image compression
A Very Low Bit Rate Image Compressor Using Transformed Classified Vector Quantization
... a very low bit rate image compression scheme is ...high compression ratio of VQ-based coding. We start by transforming image block from spatial domain to frequency ...
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Vector Quantization for Image Compression using Repulsion based FPCM
... Abstract—Image compression plays a significant role in multimedia data communication, particularly when the allotted band is ...advancement image transmission has achieved extensive ...Wavelet-based ...
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Satellite Image Compression using Discrete wavelet Transform
... The image compression is most important task to be accomplished on order to save storage capacity, several image compression methods are explored in [13] mostly based on spatial ...at ...
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Listless Block Tree Coding with Discrete Wavelet Transform for Embedded Image Compression at Low Bit Rate
... information. This is an array of coefficient values in which each coefficient has four bits. LBTC uses eight markers to store the significant coefficients [22]. In this a coefficient is not addressed by two coordinates ...
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Facial Image Compression Based on Structured Codebooks in Overcomplete Domain
... facial image compression technique in the scope of distributed source coding ...twofold: image compression is considered from the position of source coding with side information and, ...
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Warped Discrete Cosine Transform-Based Low Bit-Rate Block Coding Using Image Downsampling
... downsampled image and as this corresponds to a block of size 16 × 16 in the original image size, the overhead of WDCT will only be 4 / (16 × 16) = 0,015625 bits per ...the compression perfor- ...
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Performance Analysis of Hybrid DWT and DCT based Compression Techniques for Low Bit Rate
... are very useful for compressing images, have more advantages than Fourier, hence ...its low computational complexity ,mostly for sub band coefficients and using Singular value decomposition(SVD)[5] in which ...
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Enhanced Adaptive Approach of Video Coding at Very Low Bit Rate Using MSPIHT Algorithm
... embedded compression engine is designed hardwired that mainly targets in reducing the full high-defi- nition (HD) video transmission ...to very small prediction residuals; it acquires an overhead for ...
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AN ENHANCED LOSSLESS IMAGE COMPRESSION BASED ON HIERARCHICAL PREDICTION CONTEXT ADAPTIVE CODING
... high bit resolution images on low bit resolution displays, bit resolution needs to be ...reduced bit rates and high compression gain, an enhanced method for compression of ...
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Steganography integration into a low-bit rate speech codec
... significant bit (LSB) replacement / matching method towards the pulse code modulation (PCM) format voice data ...speech, image and video. It is very suitable to information hiding in the media ...
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Feature extraction for very low bit rate video coding
... video compression methods used to date operate on the principle of mak- ing inter-frame predictions using block matching motion estimates and coding the prediction errors using a ...higher bit-rates and ...
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An overview Survey on Various Video compressions and its importance
... MPEG frames are encoded in any of three different ways: Intra-coded or I-frames, Predictive-coded or P-frames, or Bi-directionally-predictive-coded or B-frames. I-frames are encoded as discrete frames, without depending ...
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Adaptive Long-Term Coding of LSF Parameters Trajectories for Large-Delay/Very- to Ultra-Low Bit-Rate Speech Coding
... but very- to ultra-low bit-rate ...in bit-rate over frame-by-frame quantization while preserving signal quality and competes favorably with 2D-transform coding for the lower ...
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A Novel Dictionary Selection Algorithm to Increase the Instruction Match Rates
... as bit streams, the limited memory size, and access bandwidth become the key factors in determining the different functionalities that a system can be configured and how quickly the configuration can be ...
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Very Low Bit Rate Video Coding by Combining H 264/AVC Standard and 2 D Discrete Wavelet Transform
... over very low capacity channels like the home-used dial-up ...for very low capacity channels in which our proposed video coding system can be used ...this very low capacity ...
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International Journal of Computer Science and Mobile Computing
... Before the embedding process takes place we need first to apply a pre-processing step on the cover image. This is a very important step to preserve the overall invertability of the transform. That is, the ...
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Visual Analysis of the Exact Solution of a Heat Equation
... II. ALGORITHM FOR IMAGE DISPLAY This section describes the algorithms for image display. The algorithms describe the display of the images of three different grid size: 1000 1000 , 100 100 , and 10 10 ...
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Image Compression via Modified TiBS Algorithm to Achieve High Compression Rate
... For compression of digital images there are many algorithms exists and lots of researchers have been proposed various algorithms on image ...the compression techniques adopted transformation, ...
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Universal steganography model for low bit-rate speech codec
... Low bit-rate speech codec offers so many advantages over other codecs that it has become increasingly popular in audio communications such as mobile and VoIP (Voice over Internet Protocol) ...
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Optimum Bit Rate for Image Transmission over Underwater Acoustic Channel
... paper, image transmission in underwater channels is ...dynamic bit-rate allocation before ...novel rate allocation scheme for efficient image bit stream transmission in ...
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