Results 331 to 340 of about 640,096 (345)
Some of the next articles are maybe not open access.
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.
openaire +2 more sources
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
openaire +2 more sources
Video de-noising and parallel implementation for full HD video conferencing
2013 IEEE Third International Conference on Information Science and Technology (ICIST), 2013In this paper, we propose a new de-noising algorithm to handle the mixture of salt and pepper noise and Gaussian noise in videoconference. The algorithm detects the type of noise according to the human visual characteristics first, and then uses median filter to remove salt and pepper noise, and spatial-temporal adaptive filter to remove Gaussian noise.
Yunlong Wang, Jiahai Yang, Xuan Zhang
openaire +2 more sources
Video oriented filter for impulse noise reduction
Journal of Visual Communication and Image Representation, 2018Abstract A window-adaptive video filter for removal of impulse noise from grayscale videos is proposed. The new method is based on local orientation estimation. The dominant orientation of the pattern in a local spatial neighborhood is computed by minimizing an expression of directional derivatives, and at the same time the orientation strength is ...
Hong Liu +3 more
openaire +2 more sources
Mutual Noise Estimation Algorithm for Video Denoising
2019 IEEE International Conference on Image Processing (ICIP), 2019This paper presents a novel algorithm to estimate spatio-temporal noise variance in videos. The algorithm uses mutual information from the spatial and temporal noise statistics to detect homogeneous blocks in a video frame and estimate the noise. The experimental results show the accuracy and robustness of the algorithm over videos with low to high ...
Neil Birkbeck +2 more
openaire +2 more sources
Measuring noise correlation for improved video denoising
2012 19th IEEE International Conference on Image Processing, 2012The vast majority of previous work in noise reduction for visual media has assumed uncorrelated, white, noise sources. In practice this is almost always violated by real media. Film grain noise is never white, and this paper highlights that the same applies to almost all consumer video content.
Hugh Denman +3 more
openaire +2 more sources
Image and Video Noise: An Industry Perspective
2018Images and video are increasingly becoming a part of our everyday lives and with this growth, we find an increasing number of industrial and commercial applications of imagery. In this chapter, we will examine the problem of image noise from an industrial and commercial viewpoint.
openaire +2 more sources
Noise reduction for video signals
2002Noise 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. This step gives a preliminary motion detection result for
openaire +1 more source
On motion and noise detection in digital video
Proceedings of the 2001 ACM symposium on Applied computing, 2001A. Angelopoulos +3 more
openaire +2 more sources