Ian Weng｜用另一種方式理解世界

A story about learning to see

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Light, distance, a moment.

Science Researcher & Photographer

Explore selected work

Taoyuan, Taiwan ian921030@gmail.com

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00 / Prologue

Every project began with
something worth noticing.

A pitch moves too fast for your eyes to follow. A patient’s hand twitches without meaning to. Health numbers pile up and nobody quite knows how to read them. I keep asking the same thing: can technology help us see what’s hiding in there, and actually use it?

01 / Learning Ways of thinking

I'm curious about a lot of things, so I write code to find patterns, build hardware to make things real, and use a camera to learn how to see.

Development

Python, OpenCV, NumPy, TypeScript, React, Firebase, TensorFlow.js

See PitchMotion

Hardware

Arduino, RFID, EMG signal processing

See the warning bracelet

Design

Interface design, photography

See the photographs

02 / Photography Through the lens

Photography slows me down. It asks me to stay with a moment long enough to notice its light, distance, and emotion. LIEN is where I keep those encounters and share the world as I saw it.

LIEN 01 / 05 Into the light Full-screen photographs open the journey. 02 / 05 Five chapters Landscape, ecology, architecture, people, and stories. 03 / 05 Curated or all at once Swipe through the picks or see every frame. 04 / 05 43 photographs Filter by category; each one has its own story. 05 / 05 Slowly, in the light Why I photograph, and where it began. Home Themes Gallery Works About LIVE PREVIEWLIEN-GALLERY.WEB.APP f/2.81/250ISO 200

The photo journal

A glimpse through the lens.
The full view is inside.

Landscapes, streets, and people in the light of the road, from San Francisco and Stanford to Kaohsiung. Every photograph sits with its place, its story, and the camera notes behind it.

Landscape
Street
Portrait
Travel

Step into LIEN

03 / Making Selected work

From sketching a home to reading a fast pitch: explore the question, the system, and the result.

Sketch illustration of the Zhugao design tool: a floor plan with furniture, a night-lit 3D preview, and an itemized estimate, mirrored on a tablet beside a stylus and material swatches — Sketch the walls

Snap into a plan

Light it in 3D

Drawings and estimate

Sketch the walls

Snap into a plan

Light it in 3D

Drawings and estimate

Zhugao
Interior Design Studio

From a rough sketch to a priced plan.

A browser-based interior design tool for designers and homeowners. Freehand wall sketches snap into a floor plan; furniture, lighting, and materials preview in real time 3D; and the same drawing produces a scaled PDF drawing set and an itemized estimate, with live multi-user collaboration and a LiDAR room-scan companion app.

JavaScript, Canvas 2D, three.js, Firebase, SwiftUI RoomPlan

Problem, build, and outcome

Problem

Layout sketches, 3D renders, construction drawings, and quotes usually live in separate tools, so every change has to be redrawn and recounted.

Build

Built one drawing model that feeds the plan editor, a three.js scene with path-traced renders, a jsPDF drawing set, and quantity takeoff, synced through Firestore with roles.

Outcome

One edit updates the plan, the 3D view, the drawings, and the estimate together, on phone, tablet, or desktop with no install.

Try the live demo

以參考照片繪製的道奇投手抬腿準備投球素描插畫 — Leg lift: pose baseline

Stride: weight shift

Release point marked

Ball path and speed

Leg lift: pose baseline

Stride: weight shift

Release point marked

Ball path and speed

PitchMotion
Pitch Analysis

Make a fast pitch readable.

Combines YOLO tracking and MediaPipe pose estimation to visualize pitching motion, ball trajectory, and speed.

Python, YOLO, MediaPipe, OpenCV

Problem, build, and outcome

Problem

Pitching mechanics happen too quickly for coaches and players to inspect frame by frame.

Build

Combined object tracking, pose landmarks, and trajectory overlays into a video analysis pipeline.

Outcome

Turns motion into readable evidence for speed, release point, and body sequence.

View source on GitHub

Sketch illustration of a traveler using an AI itinerary planner with map, route, and budget interfaces — Describe the trip

AI orders the stops

Adjust the route

Route ready to go

Describe the trip

AI orders the stops

Adjust the route

Route ready to go

TourGuide
AI Planner

Turn a travel idea into a plan.

A bilingual planning PWA that brings personalized itineraries, routes, and budgets into one place.

TypeScript, React 19, Groq API, Firebase

Problem, build, and outcome

Problem

Travel planning is scattered across maps, budgets, saved places, and language switching.

Build

Built a bilingual PWA that turns prompts into route-aware itineraries and budget views.

Outcome

Helps travelers move from vague intent to a plan they can actually follow.

Try the live demo

Sketch illustration of a patient wearing a detection bracelet that monitors EMG movement and NG-tube proximity — Quietly monitoring

RFID checks distance

Hand moves, EMG spikes

Bracelet alerts

Quietly monitoring

RFID checks distance

Hand moves, EMG spikes

Bracelet alerts

NG-tube Warning
Bracelet

Warn caregivers before the tube comes out.

EMG-based system detecting involuntary hand movements in NG-tube patients. Integrated RFID sensors into Arduino to monitor proximity and trigger alerts via a soft restraint mechanism, reducing unintended tube-removal incidents in clinical settings.

Arduino, EMG, RFID, mobile app

Problem, build, and outcome

Problem

Unintended tube removal can happen before caregivers have time to react.

Build

Connected EMG sensing, RFID proximity checks, and alert logic into a wearable prototype.

Outcome

Creates an earlier warning layer while keeping the restraint softer and more humane.

Export watch data

Heart and sleep load in

Metrics become charts

AI read-out for the visit

PulseBridge

Bring your watch data into the clinic.

Upload Apple Watch ECG, HRV, and sleep exports; complete a five-step symptom questionnaire. Get bilingual AI health analysis that bridges Western biomarkers with Traditional Chinese medicine, with follow-up chat and one-click PDF for clinical visits. Next.js frontend, FastAPI backend on Cloud Run.

Next.js, FastAPI, Groq, Apple Health, Firebase

Problem, build, and outcome

Problem

Personal health exports are rich in data but hard to interpret before a clinical conversation.

Build

Designed an intake flow, AI analysis layer, follow-up chat, and PDF handoff for visits.

Outcome

Bridges wearable data and human symptoms into a clearer pre-visit narrative.

Try the live demo

Set a portfolio

Run Monte Carlo

Compare the ranges

Spot what changed

CashFlow

Turn investment uncertainty into readable ranges.

Full-stack investment cash-flow simulator and market dashboard for beginner investors. Runs Monte Carlo projections, ships portfolio templates and TW / US watchlists, and pairs a Next.js + Recharts / Three.js front end with a FastAPI backend. Optional Finnhub, OpenAI / Groq, and Firebase integrations.

Next.js, FastAPI, Recharts, Three.js

Problem, build, and outcome

Problem

Beginner investors need to compare risk, allocation, and cash-flow futures without drowning in jargon.

Build

Built dashboard views for portfolios, watchlists, simulation ranges, and market context.

Outcome

Turns uncertainty into ranges and scenarios that are easier to discuss and revise.

Try the live demo

Sketch illustration for Chi Na Jian: a phone showing a neighborhood map and three nearby restaurant recommendations — Three places nearby

Pins on the map

Pick one

Navigate there

Three places nearby

Pins on the map

Pick one

Navigate there

Chi Na Jian
Restaurant Picker

Three nearby picks, each with a reason.

Mobile-first nearby restaurant decision tool that returns three curated options with verifiable reasons. It supports current or manual location, list and map views, opt-in translation, favorites sync, and graceful fallbacks when external services fail.

React, Google Maps, Firebase

Problem, build, and outcome

Problem

Choosing a nearby restaurant often means sorting through too many results and opaque recommendation scores.

Build

Built a guest-first flow that combines location, food intent, three transparent recommendations, and native map navigation.

Outcome

Turns a broad nearby search into a decision people can inspect and act on without creating an account.

Try the live demo

04 / Timeline Along the way

No journey is finished alone. From research to competitions, I learned to listen, collaborate, and keep refining ideas until they grow beyond where they began.

Selected recognition

Each stage taught me to explain an idea, defend it, and make it stronger.

International Engineering Science Festival (I-FEST2)

Gold medal, Tunisia
Taiwan International Science Fair (TISF)

2nd place, engineering
International Exhibition for Young Inventors (IEYI)

Silver award

05 / Epilogue

The story is still
being written.

Email ian921030@gmail.com

GitHub github.com/wenglien

LinkedIn linkedin.com/in/weng-li-en

IAN WENG

Every project began withsomething worth noticingnoticing.

01 / Learning Ways of thinking

Development

Hardware

Design

02 / Photography Through the lens

A glimpse through the lens.The full view is inside.

03 / Making Selected work

ZhugaoInterior Design Studio

PitchMotionPitch Analysis

TourGuideAI Planner

NG-tube WarningBracelet

PulseBridge

CashFlow

Chi Na JianRestaurant Picker

04 / Timeline Along the way

International Engineering Science Festival (I-FEST2)

Taiwan International Science Fair (TISF)

International Exhibition for Young Inventors (IEYI)

The story is stillbeing written.

Every project began with
something worth noticing.

A glimpse through the lens.
The full view is inside.

Zhugao
Interior Design Studio

PitchMotion
Pitch Analysis

TourGuide
AI Planner

NG-tube Warning
Bracelet

Chi Na Jian
Restaurant Picker

The story is still
being written.