Results 51 to 60 of about 1,421 (152)
Context dependent prediction and category encoding for DPCM image compression [PDF]
Efficient compression of image data requires the understanding of the noise characteristics of sensors as well as the redundancy expected in imagery.
Beaudet, Paul R.
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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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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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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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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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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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Still-Frame Image Transmission using DPCM/Interpolative Coding [PDF]
, 1988 Two methods of combining DPCM (differential pulse-code modulation) and interpolation are proposed for compressing still-frame teleconferencing signals.
Cox, Norman R., Mallappa, Brindala
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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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Data compression for the microgravity experiments [PDF]
Researchers present the environment and conditions under which data compression is to be performed for the microgravity experiment. Also presented are some coding techniques that would be useful for coding in this environment.
Anderson, Karen S. +4 more
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