iiinova — where your digital self keeps evolving

Esther Lin

@estheroate.bsky.social

411 followers 31 following 8 posts

CS PhD @UofT, research intern @ meta | computational imaging + photography | prev: adobe, tesla

Posts Replies Media

Esther Lin @estheroate.bsky.social · 09/09/2025

We’ll be releasing the first dataset of 5D & 6D lens blur fields for smartphone & SLR lenses—stay tuned!

090

Esther Lin @estheroate.bsky.social · 09/09/2025

And with more realistic renders, we can also do better device-specific image restoration.

1131

Esther Lin @estheroate.bsky.social · 09/09/2025

Lens Blur Fields let you render device-specific depth-of-field, blur a resolution chart, or a 3D scene:

180

Esther Lin @estheroate.bsky.social · 09/09/2025

Two smartphones of the same make can have subtly different PSFs—your phone has its own blur signature 📱🔍 We show this with the lens blur fields of two iPhone 12 Pros:

1110

Esther Lin @estheroate.bsky.social · 09/09/2025

Our capture setup only needs a monitor + a simple phone/camera stand. The pipeline is light ✨ 1️⃣ Capture a focal stack of monitor patterns (in minutes) 2️⃣ Train an MLP via non-blind deconvolution 3️⃣ Get a continuous, device-specific PSF model

1110

Esther Lin @estheroate.bsky.social · 09/09/2025

Optical blur (PSF) is a laundry list of degrading effects, e.g. defocus, diffraction, and aberrations.  It’s hard to calibrate as it varies with sensor position, focus, target distance & image plane location.  We introduce Lens Blur Fields—tiny MLPs that can model this high-dimensional PSF.

1171

Esther Lin @estheroate.bsky.social · 09/09/2025

Huge thanks to my amazing co-authors: Zhecheng Wang, Rebecca Lin, Daniel Miau, Florian Kainz, Jiawen Chen, Xuaner (Cecilia) Zhang, David B. Lindell & Kiriakos N. Kutulakos 📄 Paper ➡️ blur-fields.github.io 💻 Code: coming soon! #ComputationalPhotography #IEEECS #ComputerVision #Optics

blur-fields.github.io

Learning Lens Blur Fields

The lens blur field is a neural representation for modelling optical blur.

1170

Esther Lin @estheroate.bsky.social · 09/09/2025

Every lens leaves a blur signature—a hidden fingerprint in every photo. In our new #TPAMI paper, we show how to learn it fast (5 mins of capture!) with Lens Blur Fields ✨ With it, we can tell apart ‘identical’ phones by their optics, deblur images, and render realistic blurs.

315647