Low Bit-rate Image Coding
Feature extraction for very low bit rate video coding
... and coding the prediction errors using a ...higher bit-rates and simply applying them to bit-rates under 64 kbit/sec does not give the best possible ...of coding methods have emerged that are ...
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Feature extraction for very low bit rate video coding
... and coding the prediction errors using a ...higher bit-rates and simply applying them to bit-rates under 64 kbit/sec does not give the best possible ...of coding methods have emerged that are ...
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Warped Discrete Cosine Transform-Based Low Bit-Rate Block Coding Using Image Downsampling
... (WDCT)-based low bit-rate block coding using image ...high bit-rate coding applications because of the overhead required to define the parameters of the warping ...
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Listless Block Tree Coding with Discrete Wavelet Transform for Embedded Image Compression at Low Bit Rate
... Tree Coding (LBTC) is Wavelet Block Truncation Coding (WBTC) algorithm without using ...Tree Coding (WBTC) and No list SPIHT ...compressed image is improved significantly by optimizing the ...
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Improved quality block-based low bit rate video coding.
... video coding is the operational control of the ...typical image sequences contain a widely varying contents and motion, these available modes allow the encoder to efficiently code different regions using a ...
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STUDY OF MUTUAL INFORMATION IN PERCEPTUAL CODING WITH APPLICATION FOR LOW BIT-RATE COMPRESSION
... top image shows the mutual infor- mation between the filter bank subbands ...the low subbands (white boxes in the image). The bottom image shows the mutual information of the coefficients ...
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Rate Distortion Analysis and Bit Allocation Scheme for Wavelet Lifting-Based Multiview Image Coding
... model-based bit allocation scheme for wavelet lifting-based multiview image ...of bit allocation in image subbands. The redundancies among image views are first removed by ...the ...
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Enhanced Adaptive Approach of Video Coding at Very Low Bit Rate Using MSPIHT Algorithm
... Rather than adjacent coefficient grouping, the concealment is grouped in fixed intervals with the lowest sub- band to interleaved trees. The grouped sub-blocks are framed representation within the sequence of ...
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A Very Low Bit Rate Image Compressor Using Transformed Classified Vector Quantization
... very low bit rate image compression scheme is ...VQ-based coding. We start by transforming image block from spatial domain to frequency domain using ...reconstructed image ...
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Steganography integration into a low-bit rate speech codec
... in low bit-rate VoIP ...in image or audio ...survive low bit-rate ...all low bit-rate codecs are based on analysis by synthesis (AbS) that uses ...
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Survey Paper on Block Truncation Coding for Image using Bit Map Technique
... of image/video storage and transmission for video conferencing, image and video retrieval, video playback, ...truncation coding (BTC) and vector quantization ...quality image with high ...
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How To Code Low Bit Rate Video With A Pattern Selection Algorithm
... the image quality improves as the residual error is reduced; though there will be a corresponding increase in the number of pattern identification bits for each ...the coding efficiency with eight patterns ...
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Rate-control algorithms for non-embedded wavelet-based image coding
... iterative rate control versions, we have found two ways of defining the maximum allowed error: a rel- ative or an absolute MAE (Maximum Allowed ...since rate control precision of 1% is not the same at 2 bpp ...
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SECURE VOICE COMMUNICATION USING LOW BIT RATE SYSTEM FOR GSM USERS
... Prof.K.Murugesan obtained B.E. and M.E. degrees from Madurai Kamaraj University, Madurai in 1990 and 1994 respectively. He earned his Ph.D from Anna University, Chennai in 2001. He has published more than 40 research ...
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Low bit rate wideband WI speech coding
... applied low bit rate wideband speech ...the low frequency region and noise modelling for the high frequency ...to low bit rate wideband speech ...
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Progress report of a project in very low bit-rate speech coding
... harmonic coding of the spectral magnitudes and it employs CELP for unvoiced ...excitation coding shape and ...very low bit-rate, time scale and speech modifications are key features of ...
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Advanced Low Bit-Rate Speech Coding Below 2.4 Kbps.
... m odulation p arts of th e speech production system. By separating th e frames accord ing to th eir spectral shapes, it was possible to classify m ost of th e voiced and unvoiced frames correctly. C ertain p attern s ...
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The System Implementation of 1-phone Hardware by Using Low Bit Rate Speech Coding
... The essential features of the speech coprocessor[6] includes: real-time full-duplex speech compression and decompression, concurrent Acoustic Echo Cancellation (AEC), automatic[r] ...
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Syllable-based Pitch Encoding for Low Bit Rate Speech Coding with Recognition/Synthesis Architecture
... Excitation Coding (HVXC) ...constant bit- rate on 2.0–4.0 kbit/s. Using a variable bit-rate technique, HVXC can also operate at lower bit-rates, typically ...Very Low ...
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Adaptive Long-Term Coding of LSF Parameters Trajectories for Large-Delay/Very- to Ultra-Low Bit-Rate Speech Coding
... the coding process can be considered on larger signal ...speech coding (though see an interesting example in [17]), but it remains a powerful tool for modeling the speech temporal ...
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