SIFT FEATURE EXTRACTION AND MATCHING
SIFT is a robust algorithm that uses key points to find the unique regions in all the images
and so use these features to recognize cloned regions in a tampered region.
The following are the discrete processes associat
Lecture-18
Equilibrium
Forward Bias
Reverse Bias
4. Energy Bands
5. Current
EEE C381
Dr. Navneet Gupta
1
Total current can also be calculated using charge
controlled approximation.
EEE C381
Dr. Navneet Gupta
2
Example-3
How cut-in voltage depends on the m
Electronic Devices
EEE F214
Lecture 7-9
Dr. Navneet Gupta
Dr. Navneet Gupta
1
Intrinsic Concentration (ni)
ni
Nc Nv e
E g / 2 kT
Dr. Navneet Gupta
2
Lecture-7
Example:2
A Si sample is doped with 1017 As atoms/cm3. What is the
equilibrium hole concentra
EEE F214
Lecture 15-17
Dr. Navneet Gupta
In this chapter
pn Junction
Equilibrium state of the junction
Flow of electrons and holes across a junction
Metal-Semiconductor Junction
Ideal rectifying contact
Ideal ohmic contact
Dr. Navneet Gupta
2
Fabric
EEE F214
Lecture 12-14
Dr. Navneet Gupta
Figure
Indirect generationrecombination processes
at thermal equilibrium.
Carrier life time is complicated
Temporary trapping
Trapping can be slow or fast
Dr. Navneet Gupta
2
Steady State Carrier Generation
Dr. Nav
CHAPTER- 5
JUNCTIONS: CAPACITANCE AND
SECONDARY EFFECTS
Lecture 22
EEE F214
Dr. Navneet Gupta
Capacitance of p-n junctions
Capacitance
Junction Capacitance
1
Charge storage Capacitance
1
Due to dipole in SCR
2
Dominant under reverse
bias
3
Also known a
Chapter- 5
Junctions: Reverse Breakdown and
Transient Response
EEE F241
Lecture 20-21
Dr. Navneet Gupta
Reverse-Bias Breakdown
Breakdown
voltage
Dr. Navneet Gupta
2
Dr. Navneet Gupta
3
Zener Breakdown
Dr. Navneet Gupta
4
Dr. Navneet Gupta
5
Approximate An
Electronic Devices
EEE F214/INSTR F214
Lecture 1- 6
Dr. Navneet Gupta
Department of Electrical and Electronics Engineering
2012-2013
Dr. Navneet Gupta
1
Course Overview
2
Course Title :
Electronic Devices
Instructor-in-charge : Dr. Navneet Gupta
(email: n
Lecture 24-25
Dr. Navneet Gupta
Introduction
Dr. Navneet Gupta
2
Forms of FETs
Dr. Navneet Gupta
3
Junction Field Effect Transistors
Cross-sectional View of a JFET
Dr. Navneet Gupta
4
JFET-Operational Principle
Vs = 0
VG = 0 or negative
(relative
to
the
s
Chapter-7
Bipolar Junction Transistors
Lecture: 32-35
Dr. Navneet Gupta
Inventors
John Bardeen
Walter Brattain
William Shockley
Dr. Navneet Gupta
2
Fundamentals of BJT
Control the junction reverse current simply by varying the rate of minority
carrier inj
Chapter- 6 (contd)
MOS Field Effect
Transistors
Lecture 30-31
Dr. Navneet Gupta
EEE GC381: EDIC
1
MOS Field Effect Transistor
Output Characteristics:
Qs
VG VFB s
Ci
Qs Qn Qd
(Qn Qd )
VG VFB
s
Ci
Qd
Qn Ci VG (VFB
s )
Ci
VT at threshold
2
When VD is ap
Special Purpose Diodes-II
Dr. Navneet Gupta
Lecture:38-39
Lecture - 38
Special Purpose Diodes
Photodiodes,
Solar cells,
Light Emitting Diodes,
Tunnel diodes,
Gunn diodes and
p-n-p-n diodes.
Dr. Navneet Gupta
Optoelectronic Devices
High-Frequency Devices
H
Chapter- 6 (contd)
MISFET
Lecture 26-29
Dr. Navneet Gupta
1
MISFET: Introduction
Gate electrode that is isolated from the channel by an
insulator
IGFET.
If insulator is SiO2(Oxide)
MOSFET.
EEE C381
Dr. Navneet Gupta
2
Fermi Level
Potential barrier
Dr.
Special Purpose Diodes
Dr. Navneet Gupta
Lecture:36-37
Lecture - 36
Special Purpose Diodes
Photodiodes,
Solar cells,
Light Emitting Diodes,
Tunnel diodes,
Gunn diodes and
p-n-p-n diodes.
Dr. Navneet Gupta
Optoelectronic Devices
High-Frequency Devices
High
Chapter-4
Excess Carriers in Semiconductors
Part-I
EEE F214
Lecture 10-11
Dr. Navneet Gupta
Depertment of EEE
1
Dr. Navneet Gupta
Introduction
Dr. Navneet Gupta
2
Optical Absorption
Dr. Navneet Gupta
3
depends on:
Photon wavelength
material
Dr. Navneet
Second Level Cache
Global cache miss is similar to single cache miss rate of second
level cache provided L2 cache is much bigger than L1.
Local cache rate is NOT good measure of secondary caches as it is function of L1 cache.
Global cache miss rate shou
Exploiting Memory Hierarchy
Locality
Locality is a principle that makes having a memory hierarchy a
good idea
If an item is referenced then because of
temporal locality: it will tend to be again referenced soon
spatial locality: nearby items will tend to
ADVD DIGITAL DESIGN ASSIGNMENT
Group Members- Rishabh Agarwal, Atharv Gupta, Abhishek Gupta, Shubham Kumar, Dhruv Dave
(a)
Implement (AB + F (CDE) + DE) using Pseudo NMOS logic. Delay should be 2ns for load capacitance
500fF.
Circuit ReductionAB + F (CDE)
INTRODUCTION
Image forgery can be divided into two distinct kinds:
a. Copy move forgery (or cloning): This kind of forgery has only one image source and a
portion of the image is copied and pasted in another region of the same image.
b. Copy paste forgery
Agenda
1.
2.
3.
4.
5.
Example of Proof by Mathematical
Induction
Example of proof of a proposition which
includes If and only if
Sets
Series
Relations
Proof by Mathematical
Induction
Q:
Use induction
Example
1 to show that 5n 1 is
divisible by 4 for n = 1
CONCLUSIONS AND RECOMMENDATIONS
Through the research of digital forgery, it was possible to decipher the key characteristics of the two
major kinds of forgery types. Thus, it was possible to research on methods that exploited these
distinct characteristic
Discrete Mathematics
5th edition, 2001
Chapter 1
Logic and proofs
These Notes
Originally provided by the author
You will find my traces here and there
You can download them from the site
referenced in the textbook, and the
modify your hardcopies as nece
R. Johnsonbaugh
Discrete Mathematics
5th edition, 2001
Chapter 5
Recurrence Relations
5.1 Introduction
A recurrence relation is
an infinite sequence a1, a2, a3, an,
the formula for the nth term an depends on
one or more preceding terms,
provided is a fini
(All figures in USD million)
Revenues
2011
$26,145
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0
$37,905
Google Websites
Google Network Members' Websites
Total Advertising Revenues
Other Revenues
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Tot
R. Johnsonbaugh,
Discrete Mathematics
5th edition, 2001
Chapter 2
The Language of Mathematics
2.1 Sets
Set = a collection of distinct unordered
objects
Members of a set are called elements
How to determine a set
Listing:
Example: A = cfw_1,3,5,7 = cfw_7
Computer Communication Systems
(A review paper on Computer Communication Systems)
Adarsh Mittal
Electrical and Electronics
Birla institute of Technology and Science
Pilani, Rajasthan
f2012220@p ilan i.b its-pilani.ac.in
Abstract Computer communication is
Instructions: Language of the Machine
Instructions: Overview
Language of the machine
More primitive than higher level languages, e.g., no sophisticated
control flow such as while or for loops
Very restrictive
e.g., MIPS arithmetic instructions
Well be wo
Assignment 1: Electromagnetic Theory
Deadline: 23.10.2013.
1. An infinitely long wire carrying a 30-A current in the positive x-direction is placed along the
x-axis in the vicinity of a 10-turn circular loop located in the xy plane as shown in Fig. . If
t