CEC358 Underwater Imaging Systems and Image Processing Syllabus:
CEC358 Underwater Imaging Systems and Image Processing Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
● To learn the fundamental components of optical imaging
● To understand the challenges involved in Underwater imaging
● To understand the fundamental of Ocean Acoustics
● To Understand the principle of image processing techniques
● To Learn the SONAR Systems and various applications
UNIT I FUNDAMENTAL COMPONENTS OF OPTICAL IMAGE PROCESSING SYSTEM
Fundamentals and application of image processing, Human and Computer Vision, Introduction on Digital Camera:Focal length, Aperture, Shutter Speed, Spatial Resolution, Underwater lights and its importance, Halogen, LED, Colour Temperature, lumens, Beam angle. Image File format: JPEG, PNG, TIFF, BMP, GIF.
UNIT II OPTICAL IMAGE PROCESSING
Image Formation, Digitization, Sampling and Quantization, Geometric Transformation, Interpolation, Image Reconstruction, Spatial Filtering, Histogram, Binary Image, Color Fundamentals, Color transformations, Color Interpolation, Morphology, Image segmentation, Pattern Recognition. Challenges involved in underwater optical imaging
UNIT III FUNDAMENTALS OF UNDERWATER ACOUSTICS
Acoustic waves, Acoustic pressure, Velocity and density, Frequency and wavelength, Intensity and power, Logarithmic notation- Decibels, absolute references and levels, Source Level, Basics of propagation losses, Target Strength, Back scattering, Acoustic noise, Multiple paths, Doppler effect, Time characteristics of echoes, Active and passive sonar equations, Underwater electro acoustic transducers- projectors and hydrophones, General Structure of SONAR systems
UNIT IV SONAR SIGNAL PROCESSING
Spatial signals-Signals in space and time, Co-ordinate systems, Propagating waves, Wave number- frequency space, Finite continuous apertures, Spatial sampling, Directivity, Beamforming, Time and frequency domain beamforming, Array gain, Angular resolution, Transmitting signalsNarrowband Vs Chirp, Matched filtering, Range resolution, Time Varying Gain (TVG), Signal intensity to image conversion
UNIT V DIFFERENT TYPES OF SONAR SYSTEMS
Passive and active sonars, Single beam echo sounder, Multi beam echo sounder, Sub-bottom profiler, Sediment profiler, Side scan sonar, Synthetic aperture sonar, Forward looking sonar.
30 PERIODS
PRACTICALEXERCISES: 30 PERIODS
1. Generation of discrete time signals and finding its frequency components
2. Generation of Chirp signals and understanding its time-frequency characteristics
3. Delaying and summing of signals in time and frequency domain for narrow band signals
4. Delaying and summing of signals in time and frequency domain for wide band signals
5. Matched filtering
COURSE OUTCOMES:
On successful completion of this course, the student will be able to
CO1: Understand the techniques for underwater imaging
CO2: Understand the fundamentals of underwater acoustics and ambient noise
CO3: Exposer for array processing techniques for underwater imaging applications
CO4: Design of Filter and impedance matching circuits
CO5: Know about SONAR system and its applications
TOTAL:60 PERIODS
TEXT BOOKS
1. Bernd Jahne, “Digital Image processing, Sixth Edition, Springer,2005
2. Rafael C. Gonzalez, Richard E. Woods, Steven Eddins, “Digital Image Processing using MATLAB, Third Edition, Gatesmark Publishing,2020
3. P.K. Thiruvikraman,”A Course on Digital Image processing with MATLAB, First Edition, IOP Publishing,2020
REFERENCES
1. Tinku & Ajoy K. Ray,”Image Processing principles & Applications, First Edition, WileyInterscience,2005
2. Xavier Lurton,”An Introduction to Underwater Acoustics (Principles and applications), Second Edition, Springer,2010
3. Don H. Johnson and Dan E. Dudgeon,”Array Signal Processing: Concepts and Techniques, First Edition, Prentice Hall,1993
4. Harry L. Van Trees,”Optimum Array Processing, First Edition, Wiley-Interscience,2002
5. Richard O. Nielsen,”Sonar Signal Processing, First Edition, Artech House,1991
6. A. D. Waite,”SONAR for Practicing Engineers, Third Edition, Wiley,2002