M. Ezhilarasan

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Entropy encoding is a term referring to lossless coding technique that replaces data elements with coded representations. Entropy encoding in combination with the transformation and quantization results in significantly reduced data size. For any conventional multimedia coding, entropy encoding is a bit assigning and lossless module. Since entropy encoding(More)
The growing availability and widespread use of digital multimedia information and personal wireless communication devices have motivated development of several video compression standards over the past two decades. H.264/AVC (advanced video coding) is the newest international video coding standard approved by ITU-T as Recommendation H.264 and by ISO/IEC as(More)
A biometric system uniquely identifies and authenticates humans based on their physical or behavioural features. Iris recognition is one of the most reliable methods of biometric authentication that recognizes a person by pattern of the iris. No two irises are alike -not between identical twins, or even between the left eye and the right eye of the same(More)
Fingerprint recognition refers to the automated method of verifying a match between two human fingerprints. Fingerprints are one of many forms of biometrics used to identify an individual and verify their identity. The nonchangeability of Fingerprints during the human life span and the uniqueness of each individual’s fingerprints are the basis for using(More)
A video encoder/decoder (CODEC) performs video data compression by having combination of three main modules such as motion estimation and compensation, transformation, and entropy encoding. Among these three modules, transformation is the module of removing the spatial redundancy that exists in the spatial domain of video sequence. Discrete cosine(More)
Biometrics refers to automated recognition of individuals based on their biological and behavioral characteristics. Biometric systems are widely used for security. They are used in forensic and commercial applications. Among all biometric techniques, fingerprint recognition is the most widely used for personal identification systems due to its permanence(More)