Video size conversion and transcoding from MPEG-2 to MPEG-4
K Panusopone, X Chen - US Patent 6,647,061, 2003 - Google Patents
A transcoder architecture that provides the lowest possible complexity with a small error, eg,
for converting an MPEG-2 bitstream into an MPEG-4 bitstream. The transcoder reads header …
for converting an MPEG-2 bitstream into an MPEG-4 bitstream. The transcoder reads header …
Binary discrete cosine and Hartley transforms
S Bouguezel, MO Ahmad… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
In this paper, a systematic method for developing a binary version of a given transform by
using the Walsh-Hadamard transform (WHT) is proposed. The resulting transform …
using the Walsh-Hadamard transform (WHT) is proposed. The resulting transform …
Methods and apparatus for video size conversion
K Panusopone, X Chen - US Patent 7,676,106, 2010 - Google Patents
Methods and apparatus for performing 2: 1 downscaling on video data are provided. At least
one input matrix of NXN (eg, N= 16) Discrete Cosine Transform (DCT) coefficients is formed …
one input matrix of NXN (eg, N= 16) Discrete Cosine Transform (DCT) coefficients is formed …
Nonlinear and adaptive undecimated hierarchical multiresolution analysis for real valued discrete time signals via empirical mode decomposition approach
W Kuang, Z Yang, BWK Ling, CYF Ho, Q Dai - Digital Signal Processing, 2015 - Elsevier
Hierarchical multiresolution analysis is an important tool for the analysis of signals. Since
this multiresolution representation provides a pyramid like framework for representing …
this multiresolution representation provides a pyramid like framework for representing …
An efficient method for DCT-domain separable symmetric 2-D linear filtering
C Yim - IEEE transactions on circuits and systems for video …, 2004 - ieeexplore.ieee.org
We propose an efficient method for separable symmetric linear filtering in the discrete cosine
transform (DCT) domain. First, separable two-dimensional (2-D) linear filtering is …
transform (DCT) domain. First, separable two-dimensional (2-D) linear filtering is …
An integrated framework for semantic annotation and adaptation
Tools for the interpretation of significant events from video and video clip adaptation can
effectively support automatic extraction and distribution of relevant content from video …
effectively support automatic extraction and distribution of relevant content from video …
Modified cubic convolution scaler for edge-directed nonuniform data
SM Kwak, JH Moon, JK Han - Optical Engineering, 2007 - spiedigitallibrary.org
We derive a modified version of the cubic convolution scaler to enlarge or reduce the size of
digital images with arbitrary ratio. To enhance the edge information of the scaled image and …
digital images with arbitrary ratio. To enhance the edge information of the scaled image and …
An efficient transcoding from MPEG-2 to MPEG-1
M Sugano, Y Nakajima, H Yanagihara… - … Conference on Image …, 2001 - ieeexplore.ieee.org
This paper proposes a fast and efficient transcoding algorithm from MPEG-2 video to MPEG-
1 video where spatial resolution reduction is involved. We use quantization parameters …
1 video where spatial resolution reduction is involved. We use quantization parameters …
Scalable video coding with enhanced base layer
K Minoo, AK Luthra, DM Baylon - US Patent 9,544,587, 2017 - Google Patents
Disclosed is a method comprising:(a) receiving a layer 0 bitstream, the layer 0 bitstream
including coding informa tion for the layer 0 bitstream;(b) receiving a layer 1 bitstream, the …
including coding informa tion for the layer 0 bitstream;(b) receiving a layer 1 bitstream, the …
EMD based hierarchical multiresolution analysis via DCT with applications to ECG Denoising and QRS point enhancement
This paper proposes to employ the discrete cosine transform (DCT) to perform the empirical
mode decomposition (EMD) based hierarchical multiresolution analysis. This can simplify …
mode decomposition (EMD) based hierarchical multiresolution analysis. This can simplify …