Patent
Barbell lifting for multi-layer wavelet coding
Shipeng Li,Ruiqin Xiong,Lin Luo,Xu Jizheng,Feng Wu +4 more
- 04 Aug 2004
18
TL;DR: In this article, a method for coding video data includes scalably generating layers of wavelet coefficients based on a frame of video data, scalably generated motion vector data associated with the plurality of layers.
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Abstract: A method for coding video data includes scalably generating layers of wavelet coefficients based on a frame of video data, scalably generating motion vector data associated with the plurality of layers, and combining the motion vector data and the plurality of layers of wavelet coefficients into a coded video frame representing the frame of video data. The method may further include transmitting the coded video frame. A system for coding video data includes a temporal decomposition module scalably applying a barbell function to a frame of video data, and a motion vector module scalably coding motion vector data at multiple levels of refinement.
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Citations
Patent
Inter-layer prediction method and apparatus using same
Chulkeun Kim,Seungwook Park,Jaehyun Lim,Yongjoon Jeon,Joonyoung Park,Naeri Park,Byeongmoon Jeon +6 more
- 28 Feb 2013
TL;DR: In this paper, an inter-layer prediction method was proposed, which consists of a step of inducing interlayer motion information from a reference layer, and a step that performs a prediction on the current block in the current layer using the inter-layered motion information.
56
Patent
Scalable video coding method and apparatus using base-layer
Woo-Jin Han,Ho-Jin Ha +1 more
- 04 Jul 2005
TL;DR: In this paper, a method of more efficient conducting temporal filtering in a scalable video codec by use of a base layer is provided, which includes generating a base-layer frame from an input original video sequence, having the same temporal position as a first higher layer frame, and upsampling the base layer frame to have the resolution of a higher layer.
44
Patent
Scalable video coding using derivation of subblock subdivision for prediction from base layer
Tobias Hinz,Haricharan Lakshman,Jan Stegemann,Philipp Helle,Mischa Siekmann,Karsten Suehring,Detlev Marpe,Heiko Schwarz,Bartnik Christian,Abdelhamid Ali Atef Ibrahim Khairat,Heiner Kirchhoffer,Thomas Wiegand +11 more
- 01 Oct 2013
TL;DR: In this article, the spatial variation of the base-layer coding parameters over the base layer signal is used to select sub-blocks to be used for enhancement layer prediction, among a set of possible subblock subdivisions.
28
Patent
Over-parameterized variational optical flow method
Tal Nir,Alfred M. Bruckstein,Ron Kimmel +2 more
- 14 Feb 2008
TL;DR: In this paper, an optical flow estimation process based on a spatio-temporal model with varying coefficients multiplying a set of basis functions at each pixel is presented. But the model is highly over-parameterized, and regularization is applied at the level of the coefficients, rather than the model itself.
27
Patent
Method for coding video data of a sequence of pictures
Jerome Vieron,Guillaume Boisson,Corre Harold Le +2 more
- 02 May 2005
TL;DR: In this article, a temporal analysis (1) implementing a motion compensated temporal filtering, said filtering comprising, to get a high frequency band picture H (9, 14) at a temporal level I, a predict step implementing high pass filtering of pictures L (7, 8; 11, 12, 13) of lower temporal level, and an update step implementing low pass filtering H (10, 16, 15) of same level and/or of pictures H (7 and 11) of low temporal level.
21
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Feng Wu,Shipeng Li,Ya-Qin Zhang +2 more
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