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A multimodal drowsiness dataset using video, biometric, and behavioral data. [PDF]
Sci DataBodaghi M +5 more
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Differential Video Noise Estimation
2006 International Conference on Communication Technology, 2006In this paper, we propose a fast and reliable white- noise variance estimation. The method subtracts two sequential frames of video first and then finds intensity-homogeneous blocks in both original image and differential image, and at last estimates the noise variance in these blocks by a Gaussian weighted averaging process.
Zhu Lei, Xu Peixia
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2014 19th International Conference on Digital Signal Processing, 2014
Video halftoning is a technology used to render a video onto a display device that can only display limited number of levels. Conventional video halftoning algorithms produce blue noise video halftones which are prone to flickering. Dedicated deflickering processes are hence required to reduce flickering.
Yik-Hing Fung, Yuk-Hee Chan
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Video halftoning is a technology used to render a video onto a display device that can only display limited number of levels. Conventional video halftoning algorithms produce blue noise video halftones which are prone to flickering. Dedicated deflickering processes are hence required to reduce flickering.
Yik-Hing Fung, Yuk-Hee Chan
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Compression noise based video forgery detection
2014 IEEE International Conference on Image Processing (ICIP), 2014Intelligent video editing techniques can be used to tamper videos such as surveillance camera videos, defeating their potential to be used as evidence in a court of law. In this paper, we propose a technique to detect forgery in MPEG videos by analyzing the frame's compression noise characteristics.
Hareesh Ravi +3 more
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Channel noise and correlation noise of video sequences in distributed video coding
2011 21st International Conference on Noise and Fluctuations, 2011Distributed video coding (DVC) is defined such as a correlated video sequence is transmitted via the distributed independent encoders, and it can be decoded conditionally at the decoder. In the DVC coding, if an encoder encodes the video frame X and the side information Y is at the decoder, where the side information is computed using the adjacent ...
K. Thambu, X. N. Fernando, L. Guan
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Comfort noise for compressed video
2005 Digest of Technical Papers. International Conference on Consumer Electronics, 2005. ICCE., 2005Similar to adding a dither signal to still images to hide contouring, a dither signal may be added to decompressed video prior to display to hide video compression artifacts such as blockiness. We propose that the added "comfort noise" be temporally correlated to reduce the perceived noisiness.
J.M. Boyce, A.M. Tourapis
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