Compressive sensing is a novel signal sampling theory under the condition that the signal is sparse or compressible. In this case, the signal can be reconstructed accurately from a small amount of sampled values if the signal is sparse or compressible. The theory has successfully overcome the difficulties such as redundancy of sampling and waste
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The improvements of network infrastructure and advances in video coding technology breeds a series of video applications including video telephony, VOD, high definition TV broadcasting, et al. In 2007, in order to make compressed video stream better adapt to various network environments and user terminals, a video coding standard SVC (Scalable Video Coding) was developed
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The improvements of network infrastructure and advances in video coding technology breeds a series of video applications including video telephony, VOD, high definition TV broadcasting, et al. In 2007, in order to make compressed video stream better adapt to various network environments and user terminals, a video coding standard SVC (Scalable Video Coding) was developed
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In recent years the forgery criminal activities are increasing, which makes rapiddevelopment of certificate anti-counterfeiting technology. Currently, specialty materials andspecial processing technology are used in certificate anti-counterfeiting technology, whichleads to increased cost for making a certificate. It seems to be not applicable for ordinarycertificates that the cost is high.Adopting two dimensional barcode is mainly aimed
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Digital watermarking technology plays more and more important role in copyrightprotection, information not visible communication, the authentication security, digitalfingerprints, contents identify, use control etc. Therefore, the research of a better digitalwatermarking model has important theoretical significance and practical value.The paper firstly performances of multiple chaos systems are analyzed and comparedwith each other, Secondly, the binary
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With the increasing popularization of the modern network information technology, digital devices such as scanners and digital cameras become more available, and mass storage media for digital data becomes more affordable, the use of digital images in practical applications is becoming more widespread. Practical imaging applications range from famous works of art, to bank checks,
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With the rapid development of the communication technology and the multimedia technology, the multimedia information intercommunion has become more extensive and the information transfer has become more expedite. However, the replication of digital information is relatively simple and the digital works has characteristic of easily to be illegal used and tampered. The modified of copyrighted
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With the continuous progress of the process of information, the further researches in many fields such as computer vision, digital communication and multimedia technology make information extraction, analysis, creation and the form of dissemination more convenient. Due to many advantages of easy to product, modify, storage and disseminate, so digital media works are more and
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With the increasing popularization of the modern network information technology, digital devices such as scanners and digital cameras become more available, and mass storage media for digital data becomes more affordable, the use of digital images in practical applications is becoming more widespread. Practical imaging applications range from famous works of art, to bank checks,
(Read More…)
With the rapid development of the communication technology and the multimedia technology, the multimedia information intercommunion has become more extensive and the information transfer has become more expedite. However, the replication of digital information is relatively simple and the digital works has characteristic of easily to be illegal used and tampered. The modified of copyrighted
(Read More…)
