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Motion compensation of motion vectors
Proceedings., International Conference on Image Processing, 2002Motion compensation of image data has long been used for video compression. "Meta-motion" compensation, or motion compensation of motion vectors is presented as a new approach to data compression useful in very low bit rate (VLB) applications. Whereas present motion coding simply takes advantage of temporal redundancies among images, this new ...
J. Yeh, M. Vetterli, M. Khansari
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Advanced Motion Estimation and Motion Compensated De-Interlacing
International Workshop on HDTV '96, 1996This paper describes a new high quality de-interlacing algorithm applying motion estimation and compensation techniques. First, a comparison between two recently introduced de-interlacing concepts will be presented. One method is based on a generalized sampling theorem and the other uses time-recursion.
Bellers, E. B., de Haan, G.
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2018
Abstract This chapter introduces the different methods used to synchronize pulse sequences with both cardiac and respiratory motions, to suppress motion-related blurring and image artefacts. A single frame or a series of images (cine imaging) can be acquired at different time points (cardiac phases) throughout the cardiac cycle by ...
Sebastian Kozerke +2 more
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Abstract This chapter introduces the different methods used to synchronize pulse sequences with both cardiac and respiratory motions, to suppress motion-related blurring and image artefacts. A single frame or a series of images (cine imaging) can be acquired at different time points (cardiac phases) throughout the cardiac cycle by ...
Sebastian Kozerke +2 more
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IEEE Transactions on Communications, 1987
In an earlier paper, an extension of the pel recursive techniques of Netravali and Robbins [2] and Cafforio and Rocca [3] was introduced. Here a method is provided to realize the algorithm in hardware, with some approximations. The prediction error distribution allows the use of quantized variables to a lookup table of reasonable size. The algorithm is
D. Walker, K. Rao
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In an earlier paper, an extension of the pel recursive techniques of Netravali and Robbins [2] and Cafforio and Rocca [3] was introduced. Here a method is provided to realize the algorithm in hardware, with some approximations. The prediction error distribution allows the use of quantized variables to a lookup table of reasonable size. The algorithm is
D. Walker, K. Rao
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Motion Compensated Interpolation
SPIE Proceedings, 1987Temporal subsampling of the image sequences is a technique often used to reduce the bit-rate in video codecs. If a 2:1 time subsampling is used, the degradation introduced at the receiver by the repetition of the same frame is acceptable; if the subsampling rate drops to 4:1 or more, the interpolation of the missing frames by either repetition or ...
Elena Marcozzi, Stefano Tubaro
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Motion Compensated Coder For Videoconferencing
SPIE Proceedings, 1985A codec for videoconferencing purposes [8-12,31] is proposed based on the one-at-a-time search (OTS) motion compensation algorithm [1,30-31]. The coder is implemented in an interframe hybrid mode using the C-matrix transfsorm (CMT) [13-15]. The motion estimation algorithm employed is simple and reduces temporal redundancy while the CMT reduces spatial ...
R. Srinivasan, K. Rao
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Hybrid Coders with Motion Compensation
Multidimensional Systems and Signal Processing, 1992This paper investigates analytically the effects of motion compensation in a coder based on the observed properties of motion-compensated frame difference (MCFD) signals. The AR(1) processes with a given pixel-to-pixel autocorrelation coefficient will be used to model the intraframe images.
Chi-Fa Chen, K. K. Pang
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Pursuit Compensation during Self-Motion
Perception, 2001The pattern of motion in the retinal image during self-motion contains information about the person's movement. Pursuit eye movements perturb the pattern of retinal-image motion, complicating the problem of self-motion perception. A question of considerable current interest is the relative importance of retinal and extra-retinal signals in ...
J A, Crowell, R A, Andersen
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Motion compensated shape error concealment
2004 International Conference on Image Processing, 2004. ICIP '04., 2005The introduction of Video Objects (VOs) is one of the innovations of MPEG-4. The alpha-plane of a VO defines its shape at a given instance in time and hence determines the boundary of its texture. In packet-based networks, shape, motion, and texture are subject to loss.
Guido M, Schuster +1 more
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Motion estimation methods for overlapped block motion compensation
IEEE Transactions on Image Processing, 2000An extension of conventional block motion compensation (BMC), overlapped block motion compensation (OBMC) has been shown to reduce residual errors and blocking effects in motion-compensated video. However, the overlap creates a noncausal spatial dependence between blocks and complicates motion estimation (ME) for OBMC.
J K, Su, R M, Mersereau
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