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» Encodings of the Sequence Constraint
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VLBV
2005
Springer
15 years 12 months ago
Reduced Frame Quantization in Video Coding
We vary the quantization parameter in H.264 video encoding by increasing it by a well-chosen offset in every other frame, which we call reduced frames. As the motion compensation ...
Tuukka Toivonen, Janne Heikkilä
GLOBECOM
2009
IEEE
15 years 10 months ago
Experimental Validation of Periodic Codes for PON Monitoring
In this paper we investigate both experimentally and via simulation the monitoring of fiber link quality in a PON using optical coding technology. We use a new, simple and costeffe...
Mohammad M. Rad, Habib Fathallah, Sophie LaRochell...
EMNLP
2010
15 years 4 months ago
Practical Linguistic Steganography Using Contextual Synonym Substitution and Vertex Colour Coding
Linguistic Steganography is concerned with hiding information in natural language text. One of the major transformations used in Linguistic Steganography is synonym substitution. ...
Ching-Yun Chang, Stephen Clark
DCC
2011
IEEE
15 years 1 months ago
Improving PPM Algorithm Using Dictionaries
—We propose a method to improve traditional character-based PPM text compression algorithms. Consider a text file as a sequence of alternating words and non-words, the basic ide...
Yichuan Hu, Jianzhong (Charlie) Zhang, Farooq Khan...
ICPR
2000
IEEE
16 years 7 months ago
Fast and Accurate Motion Estimation Using Orientation Tensors and Parametric Motion Models
Motion estimation in image sequences is an important step in many computer vision and image processing applications. Several methods for solving this problem have been proposed, b...
Gunnar Farnebäck