Posts Tagged ‘DCT’:

Research on the Key Video Mining Technology of Content-based Compressed Domain

With the development of information techonology,the category and number of multimedia technology is increasing fast.However, the problems caused by visual information expansion are very serious, many fields make the acquired visual information idle as they can not effectively process them, which has caused a great waste of resources; in addition, the traditional video information management

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The Research of Face Recognition System Based on Netural Network

Nowadays our society is an information-based highly evolved society; the use of technology has permeated various industries. The technology of face recognition is the product of our age and it has been applied in various fields like building in safety control, customs security check, smart card security system and network people search etc. Face recognition

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The System of Recognition Based on Real-time Video

The technology of face recognition is one of the most important researchdirection in the pattern recognition and machine vision field. In idea l situation(such asinvariable optica l fiber, static picture, invariable posture and so on), the technology offace recognition was already very mature. But in actual applica tion environment, thetechnology of face recognition is very

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Research and Application of Digital Watermark Algorithm Based on Image Encryption and SVD

With the rapid development of computer and network technology, digital multimedia information resources are widely used in people’s work and life. Computer formidable information-handling capacity provides the enormous convenience for the multimedia information’s deposits. At the same time, the information copyright protection and series of related questions also become a hot topic. As a new

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The Technology Study of Picture Digital Watermarking Based on Wavelet Analysis and Neural Network

Digital watermarking technology is a new direction of the information security field,is a new technology to protect the digital copyright,to authenticate digital information sources and integrity in an open network environment.Watermarking algorithm is divided into spatial and transform domain algorithms according to the hidden location of the watermark.In contrast with transform domain watermarking algorithms,the advantage

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Research on Novel Steganography Algorithm with High Capacity

As an essential mechanism in secured communication, the steganography technology has become one of the hotspots that raise the concern from both academic and national defense industry fields. Normally steganography methods can be divided into two categories:spatial and transformation domain; and each can be further categorized into different types such as low awareness, high capacity,

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32Bit DCT/IDCT IP Soft Core Design

As technology continues to evolve into multimedia time, especially since the era of telecommunications, video and audio compression demand faster speed. In order to achieve high-quality high-speed audio and video compression and decompression, discrete cosine transform algorithms are increasingly being applied to the multimedia compression standard. Such as JPEG, MPEG1, MPEG4, H.264and other video standards,

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The Application of Digital Watermarking in the Android Mobile Terminal

With the development of Internet and wireless communication,the mobile phone basically reached the universal state in people’s lives. Especially recent years, following the facebook and other SNS, people could deliver their photograph in the network. This takes new demands for the copyright protection. At the same time, the digital watermarking was a hot issue. By

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Study and Application about Key Frame Extraaction Algorithm of Video Based on Compressed Domain

In recent years, with the rapid development of digital technology, multimedia resources are used more and more, in which contains video data with a large amount of information, intuitive and strong communication skills, etc. which has become the most important information carrier in daily life. People love gradually videos. However, the video data is chaotic,

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Digital Watermarking Algorithm Based on Iris Features

As the computer networks rapidly progress in communications technology, especially the Internet- depth in the popularity of social life, a wide range of digital works using computer networks go for the convenient communication and application. Whether in academic or e-commerce field, the exchange of digital information has become the most commonly used techniques to serve

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