ELEC4630代写、Python/Java程序代写

日期：2022-05-31 08:16

ELEC4630 Image Processing and Computer Vision

Assignment 3

(Due date: Friday 3/6/2022 at 4pm)

Assignment report should include coding, results, images, and a verbal description of

how you approached the problem. Some similar solutions can be found on the internet, but

you won’t learn anything by copying these verbatim, and you may be flagged for integrity

issues — none of us want this. However, in this assignment you are encouraged to find

internet solutions and modify the code significantly to match your problem. This is fine

and ethical as long as you cite your sources appropriately. Also, the tutors will help you

with the coding. Most importantly, have fun.

Ethics: It is considered to be unethical to disclose a person’s identity via photos and other

means unless you have their full knowing and voluntary consent. For this reason, many

recent large face recognition databases are considered to be unethical since faces were

harvested off the internet. In this assignment, do not show or use images of faces) unless

you have consent in writing, or it is part of a database where I indicate that consent has

been obtained. These assignments will be marked but not distributed or made public by the

teaching team.

Figure 1 Australian Smart Gate

Figure 2 READID Passport Reader

1. In this question I want you to build a bare bones face verification system similar to

what is deployed at Australian Airports for border control. Australia is a leader in

this area and Brisbane was the first city to deploy this technology at the border in

2007.

First, I want you to extract your ID photo from your passport using a mobile

phone reader and the app READID available on iPhone and Android Phones.

You can use this photo or another in your assignment — I suggest you could

use the first photo in the CalTech database as an alternative. This electronic

photo extraction from your passport occurs when your passport is scanned.

Photos are generally removed after the matching step. (Why are they

removed? Why have the photos in the passport chip instead of a central

database?)

Next take a series of similar selfies to simulate photo capture at the border.

Note that in current smartgates, the angle of capture, lighting, pose,

expression, wearing of glasses is tightly controlled (Why?).

Build a deep learning based face verification system to verify your identity

using Dlib or other libraries. There is no need to train the systems.

Plot the ROC curve of your verification system using the Caltech faces as

zero-effort imposters (on Blackboard as CalTechfaces.zip). Comment on

your results. Would this system be satisfactory for the application of border

control? Are the results realistic? Is the database sufficiently large? How

could you make the ROC curve results closer to real life results?

(15 marks)

2. Develop and test some method to distinguish cats from dogs. Feel free to use

existing source code as a basis for your work. Always cite your sources and explain

your modifications. Propose your own architecture and see how it compares to

others in the reference literature. Note that it is OK to use a subset of, say, 2000

images (see b below). It is probably easiest to develop this in the Google Collab

environment.

a. https://www.kaggle.com/c/dogs-vs-cats/overview

b. https://colab.research.google.com/github/google/eng-

edu/blob/master/ml/pc/exercises/image_classification_part1.ipynb#scrollTo

=651IgjLyo-Jx

c. https://towardsdatascience.com/image-classifier-cats-vs-dogs-with-

convolutional-neural-networks-cnns-and-google-colabs-4e9af21ae7a8

d. https://machinelearningmastery.com/how-to-develop-a-convolutional-

neural-network-to-classify-photos-of-dogs-and-cats/

Figure 3 Cats versus Dogs

(15 marks)

(Total 30 Marks)

Assignment 4 Marking Scheme and Criteria

Q1

Coding of a solution to Australian border control. Appropriate images, description

and explanation of method, issues of implementation, related images and graphs

o (8 marks)

Explanation of the requirements of a border control biometric solution regarding

privacy efficiency etc. Answers to inline questions.

o (7 marks)

Q2

Coding of solutions to perform cat and dog classification. Description and

explanation of architectures, performance metrics, appropriate citation of sources.

o (8 marks)

Evaluating and explaining your own unique architecture

o (7 marks)