PSNR Improvement Using Different Prediction Coding
Tikrit Journal of Engineering Sciences, 2015 Differential Pulse Code Modulation (DPCM) is one of the predictive coding techniques. The number of previous pixels employed in the estimate operation is referred to as the order of the predictor. Predictor using one pixel for estimation is called “first
Khamies Khalaf Hasan
doaj
A study of data coding technology developments in the 1980-1985 time frame, volume 2 [PDF]
The source parameters of digitized analog data are discussed. Different data compression schemes are outlined and analysis of their implementation are presented.
Ingels, F. M., Shahsavari, M. M.
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Real-time demonstration hardware for enhanced DPCM video compression algorithm [PDF]
The lack of available wideband digital links as well as the complexity of implementation of bandwidth efficient digital video CODECs (encoder/decoder) has worked to keep the cost of digital television transmission too high to compete with analog methods.
Bizon, Thomas P. +2 more
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Study and simulation of low rate video coding schemes [PDF]
The semiannual report is included. Topics covered include communication, information science, data compression, remote sensing, color mapped images, robust coding scheme for packet video, recursively indexed differential pulse code modulation, image ...
Chen, Yun-Chung +2 more
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Video data compression using artificial neural network differential vector quantization [PDF]
An artificial neural network vector quantizer is developed for use in data compression applications such as Digital Video. Differential Vector Quantization is used to preserve edge features, and a new adaptive algorithm, known as Frequency-Sensitive ...
Ahalt, Stanley C. +2 more
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A high-speed distortionless predictive image-compression scheme [PDF]
A high-speed distortionless predictive image-compression scheme that is based on differential pulse code modulation output modeling combined with efficient source-code design is introduced.
Cheung, K.-M., Smyth, P., Wang, H.
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Locally adaptive vector quantization: Data compression with feature preservation [PDF]
A study of a locally adaptive vector quantization (LAVQ) algorithm for data compression is presented. This algorithm provides high-speed one-pass compression and is fully adaptable to any data source and does not require a priori knowledge of the source ...
Cheung, K. M., Sayano, M.
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Picture data compression coder using subband/transform coding with a Lempel-Ziv-based coder [PDF]
, 1995 Digital data coders/decoders are used extensively in video transmission. A digitally encoded video signal is separated into subbands. Separating the video into subbands allows transmission at low data rates. Once the data is separated into these subbands
Glover, Daniel R.
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Digital compression algorithms for HDTV transmission [PDF]
Digital compression of video images is a possible avenue for high definition television (HDTV) transmission. Compression needs to be optimized while picture quality remains high.
Adkins, Kenneth C. +2 more
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An edge preserving differential image coding scheme [PDF]
Differential encoding techniques are fast and easy to implement. However, a major problem with the use of differential encoding for images is the rapid edge degradation encountered when using such systems.
Rost, Martin C., Sayood, Khalid
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