Ethan Yu - Ethan's Blog

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Ethan Yu

CV engineer by training, curious human by default 🤖🧠 My work lives in computer vision, spatial AI, and medical AI, but my brain is also busy with psychology, finance, cooking, exercise, and tech curiosities.

Tea Counts, but Hydration Is Really a Kidney-and-Hormone Story

Nutrition sciecne

Tea Counts, but Hydration Is Really a Kidney-and-Hormone Story

Water is not just “a drink.” It is part of how the body keeps itself alive. Hydration advice goes wrong when it treats water as if it were simply a daily quota. In physiology, water is not just something you pour into the body. It is the medium for biochemical

Why Changing Your Environment Often Works Better Than Trying Harder

Why Changing Your Environment Often Works Better Than Trying Harder

Environment Is Not Just Background People often talk as if change begins inside: more discipline, better habits, stronger willpower. Psychology gives a more realistic picture. Environmental psychology studies how physical, social, and institutional surroundings shape attention, emotion, behavior, and identity. Recent work in personality science makes a similar point: people

When Love Turns Into Debt: The Psychology of Guilt-Based Parenting

When Love Turns Into Debt: The Psychology of Guilt-Based Parenting

Love is not the same as guilt There is a familiar belief that the best parent is the one who quietly gives up the better portion, the easier life, the private wish, and only much later reveals how much they suffered. Psychologically, though, that is not a very good model

Advanced 3D Face Reconstruction: Innovations and Challenges

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Career Portfolio

Advanced 3D Face Reconstruction: Innovations and Challenges

Taking a Closer Look at Ngrok for SSH Tunneling

Computer Science

Taking a Closer Look at Ngrok for SSH Tunneling

Howdy tech enthusiasts! 🤓 Today, we're taking a deep dive into the world of Ngrok and SSH tunneling. I'll be your guide through this process and by the end of it, you'll be a master at setting up Ngrok to expose your SSH service on

Diaphragm Function Evaluation in COPD Patients Using Chest CT Image Analysis

Career Portfolio

Diaphragm Function Evaluation in COPD Patients Using Chest CT Image Analysis

As a dedicated software engineer and a proud member of the PLASS lab, I had the unique opportunity to contribute to a cutting-edge project entitled "Diaphragm Function Evaluation through Chest CT Image in COPD Patients." This project, a collaboration with Prof. Jinkyeong Park from the Department of Pulmonary

Developing just-LINK Mobile: A React-Native-Based Educational Video Conferencing App

Career Portfolio

Developing just-LINK Mobile: A React-Native-Based Educational Video Conferencing App

As a software engineer, I had the opportunity to lead the development of just-LINK mobile, an educational video conferencing app using React Native and TypeScript. Our team, comprising members from four different countries, employed TypeScript to catch errors at compile-time and reduce data redundancy in REST API and WebSocket. Team

Developing just-LINK: A WebRTC-Based Educational Video Conferencing Software

Career Portfolio

Developing just-LINK: A WebRTC-Based Educational Video Conferencing Software

As a software engineer, I had the opportunity to work on the development of just-LINK, a WebRTC-based educational video conferencing software. The project was a collaboration between our PLASS lab team and Unique UX Co., Ltd., with the aim of developing a system that would seamlessly integrate with their learning

How to Debug Code in PyCharm

Computer Science

How to Debug Code in PyCharm

Debugging code is an essential skill for any programmer. It allows you to identify and fix errors in your code quickly and efficiently. PyCharm comes with a powerful debugger that can make the debugging process much easier. In this blog post, we will explore the different debugging features available in

Building a Shield Tunneling Safety Monitoring and Evaluation System

Career Portfolio

Building a Shield Tunneling Safety Monitoring and Evaluation System

As a software engineer, I had the privilege of working on a groundbreaking project at the Urban and Underground Space Laboratory at Qingdao University of Technology. Our team's primary objective was to develop a safety monitoring and evaluation system for shield tunneling, a critical aspect of the construction

Why Video Games Can Hold You for Hours but Books Often Can’t

Why Video Games Can Hold You for Hours but Books Often Can’t

It is not just about discipline A common explanation is that video games are “fun” while books are “serious,” so games feel easy and reading feels hard. Psychologically, that is too vague. A better explanation is that the two activities usually offer very different feedback loops. Games are built around

Diaphragm Segmentation in CT Images: A Review of Mathematical and Computational Methods

Career Portfolio

Diaphragm Segmentation in CT Images: A Review of Mathematical and Computational Methods

Medical imaging plays a crucial role in the diagnosis and treatment of various health conditions. Accurate segmentation of the diaphragm from CT images is essential for diagnosing and treating respiratory and related diseases. This article reviews several research papers that propose different approaches for automatic or semi-automatic diaphragm segmentation. Methodologies

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