Ethical Guidelines

University of Illinois trained engineers are the best and most highly sought in the world. Our graduates are superbly trained, highly competent, and creative. This, however, is not enough. Our engineers must also be trusted to conduct themselves according to the highest ethical standards. All teams must address ethical considerations in their projects. This requirement has two parts.

First, there is a stringent Code of Ethics published by professional societies, such as IEEE and ACM. The power of these Codes of Ethics is to provide guidance to engineers in decision making and to lend the weight of the collective community of engineers to individuals taking a stand on ethical issues. Thus the Code of Ethics both limits the professional engineer and empowers the professional engineer to stand firm on fundamental ethical bedrock. All teams must read the IEEE code and ACM code and comment on any sections of the code that bear directly on the project.

Second, we expect our students to have personal standards of conduct consistent with the IEEE and ACM Codes of Ethics, but also beyond it. That is, there are areas of ethics not addressed by these Codes that the engineer may consider in taking on projects or jobs or making other professional decisions. These are personal standards and choices. In the context of the class, there are no right or wrong answers here. Our students simply need to demonstrate that they are thinking deeply about their own decisions and the consequences of those decisions. We encourage our students to consider the wider impact of their projects and address any concerns raised by potential uses of the project. Students should ask themselves, "Would I be comfortable having my name widely attached to this project? Do I want to live in a society where this product is available or widely used? Would I be proud of a career dominated by the decision making demonstrated here?" Remember that UIUC engineers have a long history of inventions that really has changed the world.

If the students feel that these Codes of Ethics does not directly bear on their project and that there are no other reasonable concerns, they should not invent issues where there are none. Students will still be expected to be familiar with the IEEE Code of Ethics and ACM Code of Ethics.

3D Scanner

Peiyuan Liu, Jiayi Luo, Yifei Song, Chenchen Yu

Featured Project

# Team Members

Yifei Song (yifeis7)

Peiyuan Liu (peiyuan6)

Jiayi Luo (jiayi13)

Chenchen Yu (cy32)

# 3D Scanner

# Problem

Our problem is how to design an algorithm that uses a mobile phone to take multiple angle photos and generate 3D models from multiple 2D images taken at various positions. At the same time, we will design a mechanical rotating device that allows the mobile phone to rotate 360 degrees and move up and down on the bracket.

# Solution Overview

Our solution for reconstructing a 3D topology of an object is to build a mechanical rotating device and develop an image processing algorithm. The mechanical rotating device contains a reliable holder that can steadily hold a phone of a regular size, and an electrical motor, which is fixed in the center of the whole system and can rotate the holder 360 degrees at a constant angular velocity.

# Solution Components

## Image processing algorithms

- This algorithm should be capable of performing feature detection which is essential for image processing. It should be able to accurately identify and extract relevant features of an object from multiple 2D images, including edges, corners, and key points.

- This algorithm should be designed to minimize the memory requirement and energy consumption, because mobile phones have limited memory and battery.

## Mechanical rotating system

Phone holder that can adjust its size and orientation to hold a phone steadily

Base of the holder with wheels that allows the holder to move smoothly on a surface

Electrical motor for rotating the holder at a constant angular velocity

Central platform to place the object

The remote-control device can be used to control the position of the central platform. Different types of motors and mechanisms can be used for up and down, such as the stepper motors, servo motors, DC motors, and AC motors.

# Criterion for Success

- Accuracy: The app should be able to produce a 3D model that is as accurate as possible to the real object, with minimal distortion, errors or noise.

- Speed: The app should be able to capture and process the 3D data quickly, without requiring too much time or processing power from the user's device.

- Output quality: The app should be able to produce high-quality 3D models that can be easily exported and used in other software applications or workflows.

- Compatibility: Any regular phone can be placed and fixed on the phone holder with a certain angle and does not come loose

- Flexibility: The holder with a phone must be able to rotate 360 degrees smoothly without violent tremble at a constant angular velocity

# Distribution of Work

Yifei Song

Design a mobile app and deploy a modeling algorithm to it that enables image acquisition and 3D modeling output on mobile devices.

Peiyuan Liu:

Design an algorithm for modeling 3D models from multiple view 2D images.

Jiayi Luo:

Design the remote-control device. Using the electrical motors to control the central platform of the mechanical rotating system.

Chenchen Yu:

Design the mechanical part. Build, test and improve the mechanical rotating system to make sure the whole device works together.