Search Results for author: Peter Tu

Found 9 papers, 2 papers with code

IMPUS: Image Morphing with Perceptually-Uniform Sampling Using Diffusion Models

1 code implementation12 Nov 2023 Zhaoyuan Yang, Zhengyang Yu, Zhiwei Xu, Jaskirat Singh, Jing Zhang, Dylan Campbell, Peter Tu, Richard Hartley

We present a diffusion-based image morphing approach with perceptually-uniform sampling (IMPUS) that produces smooth, direct and realistic interpolations given an image pair.

Image Generation Image Morphing

Emergent symbolic language based deep medical image classification

1 code implementation22 Aug 2020 Aritra Chowdhury, Alberto Santamaria-Pang, James R. Kubricht, Peter Tu

In this work, we demonstrate for the first time, the emer-gence of deep symbolic representations of emergent language in the frame-work of image classification.

Decision Making General Classification +2

ESCELL: Emergent Symbolic Cellular Language

no code implementations18 Jul 2020 Aritra Chowdhury, James R. Kubricht, Anup Sood, Peter Tu, Alberto Santamaria-Pang

In one form of the game, a sender and a receiver observe a set of cells from 5 different cell phenotypes.

Towards Emergent Language Symbolic Semantic Segmentation and Model Interpretability

no code implementations18 Jul 2020 Alberto Santamaria-Pang, James Kubricht, Aritra Chowdhury, Chitresh Bhushan, Peter Tu

A UNet-like architecture is used to generate input to the Sender network which produces a symbolic sentence, and a Receiver network co-generates the segmentation mask based on the sentence.

Segmentation Semantic Segmentation +1

Adversarial Attacks with Time-Scale Representations

no code implementations26 Jul 2021 Alberto Santamaria-Pang, Jianwei Qiu, Aritra Chowdhury, James Kubricht, Peter Tu, Iyer Naresh, Nurali Virani

Third, we generate new adversarial images by projecting back the original coefficients from the low scale and the perturbed coefficients from the high scale sub-space.

Adversarial Purification with the Manifold Hypothesis

no code implementations26 Oct 2022 Zhaoyuan Yang, Zhiwei Xu, Jing Zhang, Richard Hartley, Peter Tu

In this work, we formulate a novel framework for adversarial robustness using the manifold hypothesis.

Adversarial Robustness Variational Inference

Understanding the Unforeseen via the Intentional Stance

no code implementations1 Nov 2022 Stephanie Stacy, Alfredo Gabaldon, John Karigiannis, James Kubrich, Peter Tu

Our approach uses analogy with past experiences to construct hypothetical rationales that explain the behavior of an observed agent.

Probabilistic and Semantic Descriptions of Image Manifolds and Their Applications

no code implementations6 Jul 2023 Peter Tu, Zhaoyuan Yang, Richard Hartley, Zhiwei Xu, Jing Zhang, Yiwei Fu, Dylan Campbell, Jaskirat Singh, Tianyu Wang

This paper begins with a description of methods for estimating image probability density functions that reflects the observation that such data is usually constrained to lie in restricted regions of the high-dimensional image space-not every pattern of pixels is an image.

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