Results 251 to 260 of about 556,599 (292)
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1993
Media theory, it is no longer a novelty to say, has a problem with sound. Film and television theorists have, until recently, rarely set themselves the task of understanding the soundtrack, and even more rarely the does the problem of articulating sound and image come up.
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Media theory, it is no longer a novelty to say, has a problem with sound. Film and television theorists have, until recently, rarely set themselves the task of understanding the soundtrack, and even more rarely the does the problem of articulating sound and image come up.
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Noise residual learning for noise modeling in distributed video coding
2012 Picture Coding Symposium, 2012Distributed video coding (DVC) is a coding paradigm which exploits the source statistics at the decoder side to reduce the complexity at the encoder. The noise model is one of the inherently difficult challenges in DVC. This paper considers Transform Domain Wyner-Ziv (TDWZ) coding and proposes noise residual learning techniques that take residues from ...
Huynh Van Luong, Soren Forchhammer
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A Video-Frequency Noise-Spectrum Analyzer
Proceedings of the IRE, 1949A wave analyzer capable of measuring noise spectra in the video-frequency range is described. Part I of the paper discusses requirements in noise-analyzer design. Part II is a detailed description of a practical instrument. A frequency range of 50 kc to 10 Mc is covered, without bandswitching, at virtually constant sensitivity.
P.S. Jastram, G.P. McCouch
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Noise reduction for video signals
2009Noise reduction is an important aspect of video processing. This thesis proposes a motion adaptive temporal-spatial noise reduction system. The three-step motion detection algorithm is the key for the system. First the pixel-to-pixel difference between two frames are compared to a threshold.
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A Note on Video Noise Weighting
IEEE Transactions on Broadcasting, 1964A dicussion on video noise weighting is presented. A standard way of comparing results is proposed.
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Temporal noise reduction of Bayer matrixed video data
Proceedings. IEEE International Conference on Multimedia and Expo, 2003This paper describes a new approach for noise reduction of video sequences that directly processes raw data frames acquired by an image sensor. The proposed noise reduction filter operates on Bayer matrixed video sequences instead of the canonical YUV format allowing saving of resources in terms of time and space; this is particularly relevant for real
A. BOSCO +3 more
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Noise aliasing in interline‐video‐based fluoroscopy systems
Medical Physics, 2002Video‐based imaging systems for continuous (nonpulsed) x‐ray fluoroscopy use a variety of video formats. Conventional video‐camera systems may operate in either interlaced or progressive‐scan modes, and CCD systems may operate in interline‐ or frame‐transfer modes.
H, Lai, A, Cunningham
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Electronic equipment noise in video facilities
The Journal of the Acoustical Society of America, 1989Noise from electronic equipment is a significant problem for many video studios and ancillary facilities. Frequent efforts to control room ventilation noise are negated by noisy components that must be located within the critical spaces themselves. This paper will review acoustical design considerations for a few recent case histories.
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Improving the noise immunity of receiving video distorted white Gaussian noise
2016 International Siberian Conference on Control and Communications (SIBCON), 2016The method of a nonlinear three-dimensional filtering of the video images distorted by additive white Gaussian noise is considered. Improvement of noise immunity of reception of noisy images achieved through the effective use of statistical redundancy video-sequence. The method is used filtering theory of conditional Markov processes.
E.V. Medvedeva, I. S. Trubin
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Noise Power Estimation for Effective De-Noising in a Video Encoder
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006This paper presents a noise estimation algorithm using multiresolution motion estimation in a video encoder. Firstly, the motion estimator finds minimum block-matching errors at the finest resolution and the middle resolution for each macroblock. Secondly, if the minimum block-matching error at the finest resolution of a certain macroblock is less than
null Byung Cheol Song +1 more
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