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Content based very low bit rate video coding using wavelet transform
1999
Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348)
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In this paper we present a new hybrid compression scheme for videoconferencing and videotelephony applications at very low bit rates (i.e., 32 kbits/s). ...
Novel features of this coder are the use of overlapping block motion compensation in combination with discrete wavelet transform, followed by zerotree entropy coding with new scanning procedure of wavelet ...
The algorithm is very efficient for very low bit-rate coding applications. Due to DWT, there are no visible blocking artifacts present in-spite of using region based adaptive quantization. ...
doi:10.1109/icip.1999.822856
dblp:conf/icip/KarlekarD99
fatcat:re5dyt6zjrhx3nrgeifirsoqsq
A zerotree wavelet video coder
1997
IEEE transactions on circuits and systems for video technology (Print)
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This paper describes a hybrid motion-compensated wavelet transform coder designed for encoding video at very low bit rates. ...
Novel features of this coder are the use of overlapping block motion compensation in combination with a discrete wavelet transform followed by adaptive quantization and zerotree entropy coding, plus rate ...
wavelet coefficients of very low bit-rate video. ...
doi:10.1109/76.554422
fatcat:iq3fsbryovcszkbwzipecjplqu
Content-Based Scalable Multi-View Video Coding Using 4D Wavelet
2017
International Journal of Hybrid Information Technology
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And in this way the ROI can be allocated more bits even at low bit-rate and can secure more bits to get a better visual quality. ...
Most existing scalable multi-view video coding (SMVC) can provide temporal, spatial, SNR as well as view scalabilities, but not support content scalability. ...
This proves the content-based scalable multi-view video coding is efficient. ...
doi:10.14257/ijhit.2017.10.8.07
fatcat:dxjwxolp6bb6bem3d63npfg2c4
Lagrange Multiplier Selection for 3-D Wavelet Based Scalable Video Coding
2007
2007 IEEE International Conference on Image Processing
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A Lagrange multiplier selection for 3-D wavelet based scalable video coding is then derived. The proposed Lagrange multiplier is adaptive with respect to the characteristics of video content. ...
Index Terms-Lagrange multiplier, rate distortion model, scalable video coding, wavelet ...
However, larger prediction errors can be observed for very low bit rate points. ...
doi:10.1109/icip.2007.4379154
dblp:conf/icip/YangWI07
fatcat:pupgkqakg5cm7i25uestbx2i3m
3-D wavelet coding of video with arbitrary regions of support
2001
IEEE transactions on circuits and systems for video technology (Print)
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Index Terms-Arbitrary regions of support, SPIHT, video coding, wavelet transform. ...
A critically sampled wavelet transform is applied to the AROS and a modified 3-D set partitioning in hierarchical trees (SPIHT) algorithm is used to quantize and code the wavelet coefficients in the AROS ...
This structural information is useful for content-based search and retrieval. Object-based video coding is thus expected to play an important role in the future MPEG-7 standard [2] . ...
doi:10.1109/76.946523
fatcat:d5i5rsogpfbxhluhltg7zq5yaq
Low complexity bit-plane entropy coding for 3-D DWT-based video compression
2012
Multimedia on Mobile Devices 2012; and Multimedia Content Access: Algorithms and Systems VI
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This paper is dedicated to entropy coding for scalable video compression based on three-dimensional discrete wavelet transform (3-D DWT). ...
A new simple bit-plane entropy coding of wavelet subband matrices is proposed. ...
video codec based on 3-D DWT and low-complexity bit-plane entropy coding. ...
doi:10.1117/12.912017
fatcat:zhjgnximknbkzaa5rhf3uordti
Very Low Bit-Rate Video Coding by Combining H.264/AVC Standard and 2-D Discrete Wavelet Transform
2010
Wireless Sensor Network
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In this paper, we propose a new method for very low bit-rate video coding that combines H.264/AVC standard and two-dimensional discrete wavelet transform. ...
are coded using H.264/AVC codec. ...
In this paper, a new video compression method for very low bit-rate coding is proposed. ...
doi:10.4236/wsn.2010.24044
fatcat:qhqmlgdpmfhlzo5n5rd2twtgie
Enhanced Adaptive Approach of Video Coding at Very Low Bit Rate Using MSPIHT Algorithm
2016
Circuits and Systems
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In this paper, the coding of video is carried out at a very low bit rate with the enhancement of performance by proposing an approach of modified Set Partitioning in Hierarchical Tree (MSPIHT). ...
Nowadays video coding approach is a major key in many applications for easy transmission and storage consumption. The process of transformation is based on the empirical wavelet transform (EWT). ...
The H.264 codec is coded the sequence of low frequency components at low bit rate by utilizing the Empirical wavelet transform. ...
doi:10.4236/cs.2016.78107
fatcat:yvocf25y3jg5pkd7u23yigfr2u
Subjective quality assessment of scalable video coding: A survey
2011
2011 Third International Workshop on Quality of Multimedia Experience
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Thanks to its inherent multidimensional adaptability, a scalable bit stream can be used to simultaneously transmit multiple video sequences having different bit rates to corresponding target users, without ...
Scalable video coding is a promising solution for efficient video content distribution to users having heterogeneous network and terminal capabilities. ...
Bit rate SVC wavelet-based Low T > R - High T > R T > R (a) Bit rate SVC wavelet-based Low T < S - High T > S T > S (b) Bit rate SVC wavelet-based Low - S > R High S < R S > R (c) where two scalable codecs ...
doi:10.1109/qomex.2011.6065707
dblp:conf/qomex/LeeSE11
fatcat:mq6edkxjjbgrxdakjtg43gst24
Comparative study of JPEG2000 and H.264/AVC FRExt I-frame coding on high-definition video sequences
2005
Applications of Digital Image Processing XXVIII
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Coding simulations are performed on a set of 720p and 1080p HD video sequences, which have been commonly used for H.264/AVC standardization work. ...
This paper reports the rate-distortion performance comparison of JPEG2000 with H.264/AVC Fidelity Range Extensions (FRExt) High Profile I-frame coding for high definition (HD) video sequences. ...
H.264 technology, also known as Advanced Video Coding (AVC), is designed to provide good video quality at substantially lower bit rates comparing to previous standards. ...
doi:10.1117/12.623856
fatcat:t7zirl2hefgh3ogegwjem6ebeu
Effective optimization of video transmission in WLAN
2014
International Conference on Information Communication and Embedded Systems (ICICES2014)
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Index Terms: Pyramid vector quantization, least significant bit optimization, video coding, wireless video. ...
Compression techniques based on prediction and variablelength coding render an encoded bit stream highly sensitive to channel errors. ...
The careful design of QMFs is very important for achieving good performance in sub band coding. Wavelet packets offer more flexibility compared to ordinary wavelet based coding. ...
doi:10.1109/icices.2014.7033992
fatcat:eq4ljg3fzzhnrpksus5dkajrcq
Massively Parallel Intelligent Pixel Implementation of a Zerotree Entropy Video Codec for Multimedia Communications
[chapter]
2000
IFIP Advances in Information and Communication Technology
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low bit-rate coding requirements for M 3 C. ...
This paper presents an architecture for the implementation of a massively parallel wavelet based zerotree entropy video codec, designed for implementation on the IP array, capable of fulfilling the very ...
ACKNOWLEDGEMENTS Contributions provided by the Australian Research Council and the support of the Centre for Very High Speed Microelectronic Systems, Edith Cowan University are gratefully aclrnowledged ...
doi:10.1007/978-0-387-35498-9_9
fatcat:p3ybl546g5garj7pqyrsjibdje
Medical Video Coding Based on 2nd-Generation Wavelets: Performance Evaluation
2019
Electronics
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The 2nd-generation wavelets seeks to be positioned and confronted by the image and video coding methods currently used. ...
Quality measurements indicate that in some cases (for low bit rates) the performance of the proposed coding competes with the well-established ones (H.264 or MPEG4 AVC and H.265 or MPEG4 HEVC) and opens ...
at low bit rates is a major requirement for the practitioner. ...
doi:10.3390/electronics8010088
fatcat:wwzrdgzkbzfwbb6l34ncrsc7e4
Performance comparison of leading image codecs: H.264/AVC Intra, JPEG2000, and Microsoft HD Photo
2007
Applications of Digital Image Processing XXX
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For the 1080p video data set, all three codecs offer very similar coding performance. ...
Coding simulations are performed on a set of large-format color images captured from mainstream digital cameras and 1080p HD video sequences commonly used for H.264/AVC standardization work. ...
Alexis Tourapis for discussion on appropriate encoder settings for H.264/AVC JM12.4 intra coding. ...
doi:10.1117/12.775472
fatcat:rrdsl26pzvcwlhyiesqtwltjnm
Content-Adaptive Packetization and Streaming of Wavelet Video over IP Networks
2007
EURASIP Journal on Image and Video Processing
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This paper presents a framework of content-adaptive packetization scheme for streaming of 3D wavelet-based video content over lossy IP networks. ...
A content dependent packetization mechanism with data-interleaving and Reed-Solomon protection for wavelet-based video codecs is proposed to provide unequal error protection. ...
The mainstream video compression techniques are based on hybrid motion-compensated transform coding approach, where the transform algorithms are typically either discrete cosine transform (DCT) or 3D wavelet ...
doi:10.1186/1687-5281-2007-045201
fatcat:lrhilg6ay5eotkiiu3ujpbky44
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