RESEARCH

Ask carefully.
Test thoughtfully.

I study how computer vision and deep learning systems learn, generalize, and support useful applications. My work connects medical imaging, model evaluation, and accessibility.

Browse publications
RESEARCH DIRECTIONS

Three connected questions.

01 / LEARNING UNDER CONSTRAINTS

What should a model learn when data is limited?

Transfer learning, fine-tuning depth, and data augmentation offer different ways to adapt pretrained representations. I examine how these choices interact with dataset size and training stability.

Transfer learningData augmentation
02 / EVALUATION THAT MATTERS

What do our results actually tell us?

Medical-imaging research makes the limits of a single performance score especially clear. Error patterns, generalization, and the consequences of different mistakes all deserve attention.

Medical imagingModel evaluation
03 / TECHNOLOGY FOR COMMUNICATION

How can visual computing support accessibility?

My earlier work on facial motion capture and signing avatars explores the role of facial expressions in expressive communication and assistive technologies.

Signing avatarsFacial animation
SELECTED PUBLICATIONS

From questions
to evidence.

Recent studies examine transfer learning for chest X-ray classification. Read the original papers for the methods, results, and limitations.

DOCTORAL RESEARCH · UNICAMP

Expressions that
carry meaning.

My PhD work explored the modeling and synthesis of facial aspects of Brazilian Sign Language for realistic signing avatars, connecting facial motion capture, computer graphics and accessibility.

Research figure showing the signing avatar, facial views and wireframe models
POSTERS & PRESENTATIONS

The work,
in closer view.

Selected research and student collaborations in their original poster format.

All posters ↗
Research poster: Replication Study on Use of U-Net Architecture in Brain Tumor Segmentation
MBAA International Conference · 2026

Replication Study on Use of U-Net Architecture in Brain Tumor Segmentation

Levi Walker & Ackley Will

A replication study of 2D U-Net segmentation of brain MRI, comparing a reproducible baseline with limited rotation augmentation and validation-based threshold selection.

Student research · supervision and collaboration

View full poster · PNG ↗
Research poster: Exploring Transfer Learning for Pneumonia Classification in Chest X-rays
Research poster

Exploring Transfer Learning for Pneumonia Classification in Chest X-rays

Ackley Will

Comparing fine-tuning strategies and augmentation strengths for chest X-ray classification. The poster presents one stage of the medical-imaging research program.

Transfer learning · medical imaging

View full poster · PDF ↗
STUDENT-INTEGRATED RESEARCH

A research question
is also a way to learn.

I mentor students through focused projects that connect a well-defined question to implementation, evaluation, and communication. Projects have explored brain-tumor classification and segmentation, ECG signal analysis, and computer vision for sign-language learning.

The emphasis is on a feasible scope, reproducible work, and conclusions supported by the evidence. Selected conference presentations are included in the publications list.

LET’S CONNECT

Have a research question in common?

I welcome conversations about computer vision, model evaluation, and meaningful student research.

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