'Nyquist frequency' presentation slideshows

Digital Imaging Review

Digital Imaging Review. RT 255. Display Workstations. Conventional film/screen radiography uses large multiviewer lightboxes. With early PACS, radiologists thought that they needed 4-6 monitors. Now, the number of monitors has dropped to an average of 2.

1.34k views • 79 slides

Advanced Computer Vision

Advanced Computer Vision . Chapter 2 Image Formation. Presented by: ??? & ??? 0919508863 r99922068@ntu.edu.tw. Image Formation. 2.1 Geometric primitives and transformations 2.2 Photometric image formation 2.3 The digital camera. 2.1.1 Geometric Primitives(1/4).

879 views • 72 slides

Searching for Periodic Signals in Time Series Data

Searching for Periodic Signals in Time Series Data. Least Squares Sine Fitting Discrete Fourier Transform Lomb-Scargle Periodogram Pre-whitening of Data Other techniques Phase Dispersion Minimization String Length Wavelets. Period Analysis.

771 views • 57 slides

Detecting Electrons: CCD vs Film

Detecting Electrons: CCD vs Film. Practical CryoEM Course July 26, 2005 Christopher Booth. Overview. Basic Concepts Detector Quality Concepts How Do Detectors Work? Practical Evaluation Of Data Quality Final Practical Things To Remember. Basic Concepts.

652 views • 51 slides

Detecting Electrons: CCD vs Film

Detecting Electrons: CCD vs Film. Practical CryoEM Course July 26, 2005 Christopher Booth. Overview. Basic Concepts Detector Quality Concepts How Do Detectors Work? Practical Evaluation Of Data Quality Final Practical Things To Remember. Basic Concepts.

516 views • 51 slides

Lecture 1.2 Sensors and DSP Basics (Part 2)

Lecture 1.2 Sensors and DSP Basics (Part 2). CMSC 818W : Spring 2019. Tu-Th 2:00-3:15pm CSI 2118. Nirupam Roy. Feb. 7 th 2019. So far we have learned. Scalar and vector values from sensors Global and local coordinate system ( a.k.a , world and body frame)

491 views • 48 slides

Environmental Data Analysis with MatLab

Environmental Data Analysis with MatLab. Lecture 9: Fourier Series. SYLLABUS.

583 views • 40 slides

Data Representation

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Radar observations of the UTLS region

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GG 313 Lecture 26 11/29/05 Sampling Theorem Transfer Functions

GG 313 Lecture 26 11/29/05 Sampling Theorem Transfer Functions. Homework review: Data are 128 points, 20 samples/sec. What is the time vector that matches the data? Starting at t=0, we want a new point every 1/20=.05 s time=[0:deltat:6.35]; % The last point is at 127*.05 sec.

373 views • 22 slides

Unit 10

434 views • 18 slides

Fourier Theory in Seismic Processing

Fourier Theory in Seismic Processing. (From Liner and Ikelle and Amundsen). Temporal aliasing Spatial aliasing. Sample Rates. What is the fewest number of times I need to sample this waveform per second?. ?. ?. ?. Sample Rates. Sample Rates. Sample Rates. Sample Rates.

288 views • 18 slides

Calculation of a constant Q spectral transform

Calculation of a constant Q spectral transform. Judith C. Brown. Journal of the Acoustical Society of America,1991. Jain-De,Lee. Outline. INTRODUCTION CALCULATION RESULTS SUMMARY. INTRODUCTION. The work is based on the property that, for sounds made up of harmonic frequency components.

332 views • 17 slides

Calculation of a constant Q spectral transform

Calculation of a constant Q spectral transform. Judith C. Brown. Journal of the Acoustical Society of America,1991. Jain-De,Lee. Outline. INTRODUCTION CALCULATION RESULTS SUMMARY. INTRODUCTION. The work is based on the property that, for sounds made up of harmonic frequency components.

172 views • 17 slides

INTRODUCTION TO DIGITAL SIGNAL PROCESSING

INTRODUCTION TO DIGITAL SIGNAL PROCESSING. Dr. Hugh Blanton ENTC 4347. TOPICS. Impact of DSP Analog vs. digital: why, what & how Digital system example Sampling & aliasing ADCs: performance & choice Digital data formats. Limitations. Advantages.

607 views • 16 slides

Physics 434 Module 4 week 2: the FFT

Physics 434 Module 4 week 2: the FFT. Explore Fourier Analysis and the FFT. Exploration VI. The resonance function. Note that this is the response function to driving the system at a frequency ?. Now, go discrete!.

236 views • 14 slides

Data Acquisition

Data Acquisition. Data Acquisition System. Signal Conditioner. Analog Signal. ADC. Digital Processing. Communication . Analog vs. Digital Signal. Analog signals: Continuous, expressed in decimal system No limitation on the maximum/minimum value Can not be processed by computer

352 views • 13 slides

1D UltraSonic Anemometer

524 views • 11 slides

162 views • 9 slides

162 views • 9 slides