normal retinal images the AVR ratio varies from 2/3 to 3/4.As diabetic retinopathy progresses‚ the vein becomes wider and the AVR ratio get decreased. Based on the AVR value disease detection is made and if it is found to be affected then further processing are required for the estimation of the stage of the disease. D. Extraction of Exudate region The bright intensity regions in the fundus images with distinct boundaries is considered as the hard exudate. K means clustering algorithm is applied
Premium Standard deviation Normal distribution Statistics
Definitions of Analog multiplier on the Web: * In electronics‚ an analog multiplier is a device which takes two analog signals and produces an output which is their product. Such circuits can be used to implement related functions such as squares (apply same signal to both inputs)‚ and square roots. Definitions of Frequency doubling on the Web: * Second harmonic generation (SHG; also called frequency doubling) is a nonlinear optical process‚ in which photons interacting with a nonlinear
Premium Signal processing
around Australia in 2006. The REV requires numerous amounts of measured physical quantities for both data logging and controlling the car’s systems. For each measured physical quantity‚ a sensor is required to convert this quantity into an electrical signal. Safety is always first priority‚ and for this reason hydrogen leak safety sensors were given the highest priority on the list of required sensors. 2 HYDROGEN CONCENTRATION MEASUREMENT Hydrogen gas is extremely flammable having an EL1 of 4
Premium Sensor Oxygen Hydrogen
Dynamic Signal Analyzer for dSPACE K. A. Lilienkamp‚ and D. L. Trumper Precision Motion Control Lab‚ MIT‚ Rm 35-030‚ 77 Mass. Ave‚ Cambridge‚ MA 02139 We have developed MATLAB software and a Simulink subsystem block which work in tandem to extract the transfer function (amplitude and phase) of a system using ‘swept sine’ excitation. The resulting dynamic signal analyzer provides a convenient tool for obtaining empirical Bode plots of system and controller dynamics within the dSPACE environment.
Premium Phase Wave Signal processing
i An Introduction to Digital Image Processing with Matlab Notes for SCM2511 Image Processing 1 Alasdair McAndrew School of Computer Science and Mathematics Victoria University of Technology ii CONTENTS Contents 1 Introduction 1.1 Images and pictures . . . . . 1.2 What is image processing? . 1.3 Images and digital images . 1.4 Some applications . . . . . . 1.5 Aspects of image processing 1.6 An image processing task . 1.7 Types of digital images . . . 1.8 Image File Sizes . . . . . . . 1.9 Image
Premium Image processing Computer graphics
of Technology & Management‚ Jaipur CPU (Central Processing Unit) Submitted to- Mr. Manish Gupta By- Amir Khan Date- April 12‚ 2013 Definition- central processor unit‚ is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical‚ logical‚ and input/output operations of the system Introduction to CPU- * Central processing unit etched on silicon chip called microprocessor
Premium Central processing unit Microprocessor
Transaction Processing System (TPS) is an organized collection of people‚ procedures‚ databases‚ hardware and software to record completed business transactions. - Most TPSs consist of all the components of a CBIS including databases‚ telecommunications‚ people‚ procedures‚ software and hardware. - For most organizations‚ the TPS is the basis of the day-to-day activities that occur in the normal course of business‚ adding value to its products or services. Transactions Transaction processing is often
Premium Transaction processing Decision theory Computer program
Information Processing and Cognitive Development Information processing is a perspective (approach) to the study of cognition and cognitive development in which the mind is likened to a computer. However‚ rather than focusing on mere input and output‚ psychologists who adhere to this approach place specific emphasis on the processes of cognitive development. Cognitive perspectives examine development in terms of mental processing. The two major views within this subject are cognitive developmental
Premium Psychology Cognition Cognitive psychology
About Transaction Processing System According Dan Matthews and Rick Veague that databases are the integration point where applications that are connected can communicate with each other. Now‚ Companies are investing for a new technology that eliminates or lessen errors and to gain advantage. This is the integration point that is necessary in building competence in management by investing in database technology to achieve lessen cost. ( Matthews D.& Veague R. (2007). Why Database-agnostic
Free Transaction processing Computer Computer data storage
Kalman Filter and What Can It Do? A Kalman filter is an optimal estimator - ie infers parameters of interest from indirect‚ inaccurate and uncertain observations. It is recursive so that new measurements can be processed as they arrive. (cf batch processing where all data must be present). Optimal in what sense? If all noise is Gaussian‚ the Kalman filter minimises the mean square error of the estimated parameters. 3 What if the noise is NOT Gaussian? Given only the mean and standard
Premium Control theory Estimator Signal processing