نتایج جستجو برای: discrete cosine transform

تعداد نتایج: 265863  

Journal: :IOSR Journal of Electronics and Communication Engineering 2013

Journal: :IEEE Transactions on Image Processing 2017

Journal: :Nigerian Journal of Technological Research 2013

Journal: :journal of medical signals and sensors 0
saeid rashidi ali fallah farzad towhidkhah

with the increase of communication and financial transaction through internet, on-line signature verification is an accepted biometric technology for access control and plays a significant role in authenticity and authorization in modernized society. therefore, fast and precise algorithms for the signature verification are very attractive. the goal of this paper is modeling of velocity signal t...

2013
Radha Krishna

In the past decade, the advancement in data communications was significant during explosive growth of the Internet, which led to the demand for using multimedia in portable devices. Video and Audio data streams require a huge amount of bandwidth to be transferred in an uncompressed form. The objective of this paper is to minimize the number of bits required to represent an image and also the ac...

Journal: :CoRR 2011
Jianqin Zhou

The discrete cosine transform (DCT), introduced by Ahmed, Natarajan and Rao, has been used in many applications of digital signal processing, data compression and information hiding. There are four types of the discrete cosine transform. In simulating the discrete cosine transform, we propose a generalized discrete cosine transform with three parameters, and prove its orthogonality for some new...

Journal: :Journal of Signal and Information Processing 2010

Journal: :IEEE Journal on Selected Areas in Communications 1986

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