DataСompression.info

Multiresolution Motion Estimation Using An Affine Model

BeSSeL — Tue, 10 Jul 2007 11:24:19 +0000

by Stefan Krüger, Andrew Calway.
“This report describes a novel method for estimating motion in image sequences. The approach is based on a multiresolution model in which the motion field is considered to consist of a collage of different size regions with different local motions associated with them. The local motions are defined in terms of an affine model. The estimation procedure consists of a local component in which the affine motion parameters are estimated using a generalised correlation technique and a global component”

Fast and Accurate Motion Estimation using Orientation Tensors and Parametric Motion Models

BeSSeL — Tue, 10 Jul 2007 11:21:21 +0000

by Gunnar Farneback.
“This paper presents a novel motion estimation algorithm, which gives excellent results on both counts.
The algorithm starts by computing 3D orientation tensors from the image sequence. These are
combined under the constraints of a parametric motion model to produce velocity estimates. Evaluated
on the well-known Yosemite sequence, the algorithm shows an accuracy which is substantially better
than for previously published methods. Computationally the algorithm is simple and
can be implemented by means of separable convolutions, which also makes it fast.”

Fast Local and Global Projection-Based Methods for Affine Motion Estimation

BeSSeL — Tue, 10 Jul 2007 11:13:29 +0000

by Dirk Robinson and Peyman Milanfar.
“Motivated by the need for fast and accurate motion estimation for compression, storage, and
transmission of video as well as other applications of motion estimation, we present algorithms
for estimating affine motion from video image sequences. Our methods utilize properties
of the Radon transform to estimate image motion in a multiscale framework to achieve
very accurate results.We develop statistical and computational models that motivate
the use of such methods, and demonstrate that it is possible to improve the computational burden of
motion estimation by more than an order of magnitude, while maintaining the degree of accuracy
afforded by the more direct, and less efficient, 2-D methods.”

Fast and Efficient Algorithms for Video Compression and Rate Control

BeSSeL — Tue, 10 Jul 2007 11:07:37 +0000

by Dzung Tien Hoang and Jeffrey Scott Vitter.

Fast and Efficient Algorithms for Text and Video Compression

BeSSeL — Tue, 10 Jul 2007 11:03:04 +0000

by Dzung Tien Hoang.
“There is a tradeoff between the speed of a data compressor and the level of compression it can
achieve. Improving compression generally requires more computation; and improving speed generally
sacrifices compression. In this thesis, we examine a range of tradeoffs for text and video.”

An Adaptive Error Concealment Mechanism For H.264/AVC Encoded Low-resolution Video Streaming

BeSSeL — Tue, 10 Jul 2007 08:01:55 +0000

by Olivia Nemethova, Ameen Al-Moghrabi and Markus Rupp.

Advanced de-interlacing techniques

BeSSeL — Fri, 06 Jul 2007 06:51:58 +0000

by E.B. Bellers and G. de Haan.
“This paper presents an overview of deinterlacing techniques and describes some advanced motion
compensated de-interlacing techniques in more detail. These motion compensated methods
are analyzed and mutually compared. It is concluded that the success of motion compensated
de-interlacing depends critically on a protection mechanism.”

Advanced De-Interlacing techniques with the use of Zonal Based Algorithms

BeSSeL — Fri, 06 Jul 2007 06:46:18 +0000

Alexis M. Tourapis, Oscar C. Au, Ming L. Liou.
“This paper describes a new highly efficient deinterlacing approach based on motion estimation and
compensation techniques. The proposed technique mainly benefits from the motion vector properties
of zonal based algorithms, such as the Advanced Predictive Diamond Zonal Search (APDZS) and
the Predictive Motion Vector Field Adaptive Search Technique (PMVFAST), multihypothesis
motion compensation, but also an additional motion classification phase where, depending
on the motion of a pixel, additional spatial and temporal information is also considered
to further improve performance.”

Packet Scheduling Algorithm for Wireless Video Streaming

BeSSeL — Fri, 06 Jul 2007 06:41:16 +0000

by Sang H. Kang and Avideh Zakhor.
In this paper a class of packet scheduling algorithms for video streaming over wireless channels by applying different deadline thresholds to video packets (VP) with different importance is proposed.

A Hybrid Edge-enhanced Motion Adaptive De-interlacer

BeSSeL — Fri, 06 Jul 2007 06:30:34 +0000

by Marc Ramirez.
“Many methods have been proposed to perform high quality de-interlacing but few of them are computationally efficient enough to be implemented in a fast software application. In order to come closer to this goal, this paper discusses a non-motion compensated (Non-MC) hybrid de-interlacer which benefits from a proposed HDTV de-interlacer and the idea that jagged edges can be improved with additional processing.”

Overview of the MPEG-4 Standard

BeSSeL — Fri, 06 Jul 2007 06:19:14 +0000

MPEG-4 Overview - (V.18 – Singapore Version). ISO/IEC JTC1/SC29/WG11 N4030,
March 2001.

Analyzed rate distortion model in standard video codecs for rate control

BeSSeL — Fri, 06 Jul 2007 06:12:12 +0000

by Rezaei, M.; Gabbouj, M.; Wenger, S.

Reduced slice headers and bit error resilience

BeSSeL — Wed, 04 Jul 2007 13:08:34 +0000

by Till Halbach.
“This contribution presents a solution for effective handling of residual errors in the code stream.”

Adaptive Rate Control for JVT

BeSSeL — Wed, 04 Jul 2007 13:08:27 +0000

by Zhengguo Li, Feng Pan, Keng Pang Lim, Genan Feng, Xiao Lin and Susanto Rahardja.

Optimum Bit Allocation and Rate Control for H.264/AVC

BeSSeL — Wed, 04 Jul 2007 12:59:24 +0000

by Zhengguo Li, Feng Pan, Keng Pang Lim, Genan Feng, Xiao Lin and Susanto Rahardja.
The authors says “In this proposal, we present an adaptive picture layer rate control scheme for JVT by introducing a linear model to predict the mean absolute difference (MAD) of current picture by that of previous picture.”

New Fast Binary Pyramid Motion Estimation for MPEG-2 and HDTV Encoding

BeSSeL — Wed, 04 Jul 2007 12:44:43 +0000

by Xudong Song, Tihao Chiang, Xiaobing Lee, and Ya-Qin Zhang.

True motion estimation - theory, application, and implementation

BeSSeL — Mon, 02 Jul 2007 14:14:03 +0000

by Yen-Kuang Chen.
“This thesis offers an integrated perspective of the theory, applications, and implementation
of true motion estimation.”

Sobol Partial Distortion Algorithm for Fast Full Search in Block Motion Estimation

BeSSeL — Mon, 02 Jul 2007 14:08:14 +0000

by Davide Quaglia, Bartolomeo Montrucchio.
The full search algorithm (Sobol Partial Distortion - SPD) presented in this article “uses a new matching
strategy to quickly compute distortion and reduce block matching computation.”

A Fast Adaptive Motion Estimation Algorithm

BeSSeL — Mon, 02 Jul 2007 13:59:00 +0000

by Ishfaq Ahmad, Senior Member, IEEE, Weiguo Zheng, Member, IEEE, Jiancong Luo, Member, IEEE,
and Ming Liou, Life Fellow, IEEE.
The authors says “the proposed algorithm takes advantage of the correlation between MVs in both
spatial and temporal domains, controls to curb the search, avoids of search stationary regions, and
uses switchable shape search patterns to accelerate motion search.”

Detection Method and Removing Filter for Corner Outliers in Highly Compressed Video

BeSSeL — Mon, 02 Jul 2007 13:47:32 +0000

by Jongho Kim, Kicheol Jeon, and Jechang Jeong.
In this paper a detection method and a removal filter for corner outliers in order to improve visual quality in highly compressed video is proposed.