This webinar discusses signal processing in various domains. Signal processing techniques are used to capture, modify, analyze and synthesize signals from sources like sound, images and biological signals. These techniques are applied in healthcare for EEGs, MRIs and ultrasounds, in multimedia for video and audio, in music for recording and effects, and in film for special effects. Signal processing is also used in industries for quality control, robotics and autonomous vehicles. Additional applications include home security, smart home devices, remote sensing, space research and stock analysis. The webinar covers tools used for signal processing like MATLAB and LabVIEW.

1. A Webinar on
Signal Processing
in Today’s World
Dr Shilpa Mehta and Ms Natya S, ECE Department
1
Presented by
Dr. Shilpa Mehta , Ms. Natya S

2. A Sneak Peek Into the Magical World of
Signal Processing
2
Dr Shilpa Mehta and Ms Natya S, ECE Department

3. Interesting? A Dive into the
Wonderous worlds
• Each Image in the previous Collage, viz.
• The image of the distant supernova,
• The Radar and Sonar tracking Systems
• The MRI / CT / Ultrasound/ X-Ray scan and the images of the internal
parts of human body,
• The Satellite signals which help us in GPS maps,
• The musical effects in today’s concerts,
• The hyper realistic Science fiction movies
• The flying Harry Potter and the colored Mughale Azam
:
• The list is endless…
LET US EXPLORE
3
Dr Shilpa Mehta and Ms Natya S, ECE Department

4. 4
• Signal processing focuses on
• Capturing,
• Modifying,
• Analyzing,
• Synthesizing signals from various sources, such
as Sounds, Images, Space, and Biological.
• Signal processing techniques can be used to
• Improve transmission,
• Storage efficiency subjective quality
• Emphasize or detect components of interest in a measured
signal.
Signal Processing
Dr Shilpa Mehta and Ms Natya S, ECE Department

5. Some Well Known Domains/ Tools In Signal Processing:
• Speech Signal Processing
• Digital Image Processing
• Fuzzy Logic and Its Engineering Applications
• Multimedia Signal Processing
• Adaptive Signal Processing
• Biomedical Signal Processing
It is done Utilizing many Tools, basically
• Linear Algebra for Engineering)
• Engineering Applications using Matlab and Labview
5
Dr Shilpa Mehta and Ms Natya S, ECE Department

6. Health Care Field
6
• EEG provides information about
brain activity.
• ECG Signals: condition of
patient’s heart
• Ultra Sound: Multiple but
Mainly foetal studies.
Hearing Aid
ECG reading
Dr Shilpa Mehta and Ms Natya S, ECE Department

7. Health Care (Cont.)
7
• Ultra Sound: Multiple but
Mainly Prenatal Foetal studies
• Endoscopy, Retinal Scans,
ENT Probing and many other
applications are quite well
known.
Dr Shilpa Mehta and Ms Natya S, ECE Department
Ultrasound image of a developing Foetus in
womb.
Endoscopy of the digestive track
Lie Detection Machine

8. Health Care (Cont.)
8
CT Scan Machine
A person wearing an EEG-cap &
navigating wheelchair
Dr Shilpa Mehta and Ms Natya S, ECE Department

9. Multimedia
9
• Generation, storage and
transmission of sound, still
images, motion pictures.
• Video Conferencing
• Digital TV
• CD, Hard Disk etc.,
Dr Shilpa Mehta and Ms Natya S, ECE Department

10. Mobile Application
10
Dr Shilpa Mehta and Ms Natya S, ECE Department

11. Music Industry
11
• Recording
• Playback
• Manipulation (mixing, special
effect, bass, treble, echo etc)
• Noise Cancellation
• Speech Recognition
• Synthesis of artificial Speech
(text to speech and vice versa
Dr Shilpa Mehta and Ms Natya S, ECE Department

12. Film Industry
12
• Special effects are illusions
or visual tricks used in the
theatre, film, television, video
game and simulator industries to
simulate the imagined events in a
story or virtual world.
Dr Shilpa Mehta and Ms Natya S, ECE Department

13. Industries Application
13
Food Industry
Inspection of Printed Circuit Boards
(PCB’s)
Dr Shilpa Mehta and Ms Natya S, ECE Department

14. Industries Application (Cont.)
14
Automotive Industry: Driver assistive
technologies based on cameras and/or
radar sensors
Robotic guidance & control
Dr Shilpa Mehta and Ms Natya S, ECE Department

15. Home Security
15
Dr Shilpa Mehta and Ms Natya S, ECE Department

16. Smart home Control of Devices
• Smart Home
16
Dr Shilpa Mehta and Ms Natya S, ECE Department

17. Consumer Comfort Control of Devices using
Signal Processing
• AC – Sensor Senses the room temperature and user
feeds in his target temperature (Both in term of
signals – room temperature is controlled)
17
Dr Shilpa Mehta and Ms Natya S, ECE Department

18. Consumer Comfort Control of Devices using Signal
Processing
• Controlling Cooking Cycle by checking Temperature in Oven
• Controlling Wash Cycle by Sensing Weight and Dirtyness of
Laundry, and hardness of water in Washing Machine
• Adjusting TV Brightness by sensing Illumination in room
• Turning On and OFF Street Light by sensing the Light status
• Changing Cooling cycle in Refrigerator as per the ambient
weather and temperature.
• Ringing of Fire Alarm and turning on sprinkler on sensing
smoke.
Many Many more…..
18
Dr Shilpa Mehta and Ms Natya S, ECE Department

19. Applications of Radars in Defense Fields
19
Dr Shilpa Mehta and Ms Natya S, ECE Department

20. Applications of Sonar
20
Dr Shilpa Mehta and Ms Natya S, ECE Department

21. Remote Sensing Applications
21
Dr Shilpa Mehta and Ms Natya S, ECE Department

22. Space Research
22
• The Mars2020 Rover mission use image
processing for navigation on the surface.
• The Earth observation satellites do use some
image processing, especially image compression
to reduce the size of the downlinked data.
• Weather Forecast
Dr Shilpa Mehta and Ms Natya S, ECE Department

23. Space Research Contd.
• Hubble images of Distant Galaxies
23
Dr Shilpa Mehta and Ms Natya S, ECE Department

24. Understanding the Cosmos
24
• Solar Flares Sunspots Affecting Earth
• Solar Eclipses and Proof of Einstein’s theory of
Gravity Refuting Newton’s theory of Gravity.
Dr Shilpa Mehta and Ms Natya S, ECE Department

25. Stock Valuation & Prediction
25
Dr Shilpa Mehta and Ms Natya S, ECE Department

26. And Many Many Many More ..
26
Dr Shilpa Mehta and Ms Natya S, ECE Department

27. Tools Used:
27
Dr Shilpa Mehta and Ms Natya S, ECE Department

28. 28
Dr Shilpa Mehta and Ms Natya S, ECE Department

29. 29
Dr Shilpa Mehta and Ms Natya S, ECE Department