Proceedings ArticleDOI
Rate scalable video coding using a foveation-based human visual system model
Zhou Wang,Ligang Lu,Alan C. Bovik +2 more
- Vol. 3, pp 1785-1788
TLDR
This work proposes a foveation scalable video coding (FSVC) algorithm, which supplies good quality-compression performance as well as effective rate scalability to support simple and precise bit rate control.Abstract:
Recently, there have been two interesting trends in image and video coding research. One is to use human visual system (HVS) models to improve the current state-of-the-art coding algorithms by better exploiting the properties of the intended receiver. The other is to design rate-scalable video codecs, which allow the extraction of coded visual information at continuously varying bit rates from a single compressed bitstream. We follow these two trends and propose a foveation scalable video coding (FSVC) algorithm, which supplies good quality-compression performance as well as effective rate scalability to support simple and precise bit rate control. A foveation-based HVS model plays a key role in the algorithm. The algorithm is amenable to the inclusion of various HVS models and adaptable to different video communication applications.read more
Citations
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Image Processing
TL;DR: The main focus in MUCKE is on cleaning large scale Web image corpora and on proposing image representations which are closer to the human interpretation of images.
Journal ArticleDOI
Human visual system based adaptive digital image watermarking
Huiyan Qi,Dong Zheng,Jiying Zhao +2 more
TL;DR: A new adaptive digital image watermarking method that is built according to the image features such as the brightness, edges, and region activities and extended to the DCT domain by searching the extreme value of the quadratic function subject to the bounds on the variables.
Proceedings ArticleDOI
Predictive perceptual compression for real time video communication
TL;DR: This paper has developed an eye gaze-aware MPEG-2 transcoder that can perceptually re-encode a live video stream in real time and compensates the interim eye movements between the sampling and actual coding.
Journal ArticleDOI
A practical foveation-based rate-shaping mechanism for MPEG videos
TL;DR: An efficient and practical DCT-domain foveation model, which is deduced from existing experimental results, and an efficient rate-shaping mechanism for MPEG bitstreams, which are practical for real-world usage.
Patent
Method and apparatus for data compression using content-based features
TL;DR: In this article, the authors present methods and apparatuses for compressing a video signal, including storing a function derived from a set of human ratings in a memory, identifying within at least a portion of the video signal at least one content-based feature, inputting the identified contentbased feature into the stored function, determining a compression ratio based on the function using a processor and generating a compressed video signal with the determined compression ratio.
References
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Proceedings Article
Image Processing
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Visibility of wavelet quantization noise
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