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Rotational transform for image and video compression
2011 18th IEEE International Conference on Image Processing, 2011To improve video coding efficiency, the Rotational Transform (ROT) was proposed for adaptive switching between different transforms cores. The Karhunen Loeve Transform (KLT) is known to be optimal for given residual but requires much side information to be signaled to the decoder.
Elena Alshina +2 more
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Partial encryption of compressed images and videos
IEEE Transactions on Signal Processing, 2000The increased popularity of multimedia applications places a great demand on efficient data storage and transmission techniques. Network communication, especially over a wireless network, can easily be intercepted and must be protected from eavesdroppers.
Howard Cheng, Xiaobo Li 0001
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Image and video compression for HDR content
SPIE Proceedings, 2012High Dynamic Range (HDR) technology can offer high levels of immersion with a dynamic range meeting and exceeding that of the Human Visual System (HVS). A primary drawback with HDR images and video is that memory and bandwidth requirements are significantly higher than for conventional images and video.
Zhang, Yang +3 more
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Image and video compression: A survey
International Journal of Imaging Systems and Technology, 1999At the present time, we stand upon the threshold of a revolution in the means available to us for the widespread dissemi- nation of information in visual form through the rapidly increasing use of international standards for image and video compression.
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A novel image sensor for video compression
Proceedings of 1st International Conference on Image Processing, 2002A novel image sensor on which video signals can be compressed is proposed. Since the video signal is compressed on an imager plane by using fast analog processing, the amount of image data read out from the imager can be significantly reduced with very small latency.
Kiyoharu Aizawa +4 more
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Fast image/video retrieval on compressed image and video databases
1999 IEEE Third Workshop on Multimedia Signal Processing (Cat. No.99TH8451), 1999Modern communication, networking, and multimedia technologies make it possible to distribution image and video electronically. More and more digital images and videos are available to the average users. Consequently, more and more users start to access digital image and video by means of new ways, such as through the Internet.
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Temporal compressive imaging for video
2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 2018In many situations, imagers are required to have higher imaging speed, such as gunpowder blasting analysis and observing high-speed biology phenomena. However, measuring high-speed video is a challenge to camera design, especially, in infrared spectrum.
qun zhou, Jun Ke, Linxia Zhang
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Limited color display for compressed image and video
IEEE Transactions on Circuits and Systems for Video Technology, 2000Many display devices nowadays still allow a limited number of colors, called color palette, to be displayed simultaneously. Besides, images and videos in most World Wide Web databases are in compressed formats. Therefore, it becomes an important issue to retrieve a suitable color palette from compressed domain in order to have fast and faithful color ...
Pei, Soo-Chang +2 more
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Block-Based Compressed Sensing of Images and VideO
Foundations and Trends® in Signal Processing, 2012A number of techniques for the compressed sensing of imagery are surveyed. Various imaging media are considered, including still images, motion video, as well as multiview image sets and multiview video. A particular emphasis is placed on block-based compressed sensing due to its advantages in terms of both lightweight reconstruction complexity as well
James E. Fowler +2 more
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Restoration of differential images for enhancement of compressed video
Journal of Visual Communication and Image Representation, 2004Abstract A modified regularization algorithm is proposed to enhance compressed video by restoring predictive-coded pictures. Since most video coding standards adopt a hybrid structure of macroblock-based motion compensation and block discrete cosine transform, the blocking artifacts occurs at both the block boundary and block interior, and the ...
Junghoon Jung +3 more
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