Search Results for author: Irene Cheng

Found 19 papers, 8 papers with code

Interactive Manipulation and Visualization of 3D Brain MRI for Surgical Training

no code implementations24 Mar 2024 Siddharth Jha, Zichen Gui, Benjamin Delbos, Richard Moreau, Arnaud Leleve, Irene Cheng

In modern medical diagnostics, magnetic resonance imaging (MRI) is an important technique that provides detailed insights into anatomical structures.

3D Reconstruction

Feature CAM: Interpretable AI in Image Classification

no code implementations8 Mar 2024 Frincy Clement, Ji Yang, Irene Cheng

We then extend the same for eight CNN-based architectures to compare the differences in visualization and thus interpretability.

Classification Image Classification

Subjective and Objective Visual Quality Assessment of Textured 3D Meshes

no code implementations8 Feb 2021 Jinjiang Guo, Vincent Vidal, Irene Cheng, Anup Basu, Atilla Baskurt, Guillaume Lavoue

Based on analysis of the results, we propose two new metrics for visual quality assessment of textured mesh, as optimized linear combinations of accurate geometry and texture quality measurements.

Parkinson's Disease Detection with Ensemble Architectures based on ILSVRC Models

no code implementations23 Jul 2020 Tahjid Ashfaque Mostafa, Irene Cheng

In this work, we explore various neural network architectures using Magnetic Resonance (MR) T1 images of the brain to identify Parkinson's Disease (PD), which is one of the most common neurodegenerative and movement disorders.

Object Recognition

Parkinson's Disease Detection Using Ensemble Architecture from MR Images

no code implementations1 Jul 2020 Tahjid Ashfaque Mostafa, Irene Cheng

We find that detection accuracy increases drastically when we focus on the Gray Matter (GM) and White Matter (WM) regions from the MR images instead of using whole MR images.

Decision Making Object Recognition

An Unsupervised Generative Neural Approach for InSAR Phase Filtering and Coherence Estimation

1 code implementation27 Jan 2020 Subhayan Mukherjee, Aaron Zimmer, Xinyao Sun, Parwant Ghuman, Irene Cheng

GenInSAR's Phase, and Coherence Root-Mean-Squared-Error and Phase Cosine Error have average improvements of 0. 54, 0. 07, and 0. 05 respectively compared to the related methods.

Adaptive Dithering Using Curved Markov-Gaussian Noise in the Quantized Domain for Mapping SDR to HDR Image

no code implementations20 Jan 2020 Subhayan Mukherjee, Guan-Ming Su, Irene Cheng

We vary the magnitude and structure of the noise pattern adaptively based on the luma of the quantized pixel and the slope of the inverse-tone mapping function.

inverse tone mapping Inverse-Tone-Mapping +2

CNN-based InSAR Denoising and Coherence Metric

1 code implementation20 Jan 2020 Subhayan Mukherjee, Aaron Zimmer, Navaneeth Kamballur Kottayil, Xinyao Sun, Parwant Ghuman, Irene Cheng

Interferometric Synthetic Aperture Radar (InSAR) imagery for estimating ground movement, based on microwaves reflected off ground targets is gaining increasing importance in remote sensing.

Image Denoising

CNN-Based Real-Time Parameter Tuning for Optimizing Denoising Filter Performance

1 code implementation20 Jan 2020 Subhayan Mukherjee, Navaneeth Kamballur Kottayil, Xinyao Sun, Irene Cheng

We propose a novel direction to improve the denoising quality of filtering-based denoising algorithms in real time by predicting the best filter parameter value using a Convolutional Neural Network (CNN).

Denoising SSIM

CNN-based InSAR Coherence Classification

1 code implementation20 Jan 2020 Subhayan Mukherjee, Aaron Zimmer, Xinyao Sun, Parwant Ghuman, Irene Cheng

Interferometric Synthetic Aperture Radar (InSAR) imagery based on microwaves reflected off ground targets is becoming increasingly important in remote sensing for ground movement estimation.

Classification General Classification

Potential of deep features for opinion-unaware, distortion-unaware, no-reference image quality assessment

1 code implementation27 Nov 2019 Subhayan Mukherjee, Giuseppe Valenzise, Irene Cheng

However, majority of such methods either use hand-crafted features or require training on human opinion scores (supervised learning), which are difficult to obtain and standardise.

No-Reference Image Quality Assessment

DeepInSAR: A Deep Learning Framework for SAR Interferometric Phase Restoration and Coherence Estimation

1 code implementation6 Sep 2019 Xinyao Sun, Aaron Zimmer, Subhayan Mukherjee, Navaneeth Kamballur Kottayil, Parwant Ghuman, Irene Cheng

In this work, we propose a deep convolutional neural network (CNN) based model DeepInSAR to intelligently solve both the phase filtering and coherence estimation problems.

3D Plane Detection

Fully Automatic Brain Tumor Segmentation using a Normalized Gaussian Bayesian Classifier and 3D Fluid Vector Flow

no code implementations1 May 2019 Tao Wang, Irene Cheng, Anup Basu

This paper presents an automatic brain tumor segmentation method based on a Normalized Gaussian Bayesian classification and a new 3D Fluid Vector Flow (FVF) algorithm.

Brain Tumor Segmentation Segmentation +1

Towards the identification of Parkinson's Disease using only T1 MR Images

no code implementations19 Jun 2018 Sara Soltaninejad, Irene Cheng, Anup Basu

Our proposed method has three main steps : 1) Preprocessing, 2) Fea- ture Extraction, and 3) Classification.

Classification General Classification

Segmentation of Arterial Walls in Intravascular Ultrasound Cross-Sectional Images Using Extremal Region Selection

no code implementations10 Jun 2018 Mehdi Faraji, Irene Cheng, Iris Naudin, Anup Basu

Secondly, we propose a region selection strategy to label two ERELs as lumen and media based on the stability of their textural information.

Learning Local Distortion Visibility From Image Quality Data-sets

no code implementations11 Mar 2018 Navaneeth Kamballur Kottayil, Giuseppe Valenzise, Frederic Dufaux, Irene Cheng

In this paper, we explore a different perspective, and we investigate whether it is possible to learn local distortion visibility from image quality scores.

Local Distortion

Highlighting objects of interest in an image by integrating saliency and depth

1 code implementation28 Nov 2017 Subhayan Mukherjee, Irene Cheng, Anup Basu

However, the depth information acquired from stereo can also be used along with saliency to highlight certain objects in a scene.

3D Reconstruction

Entropy-difference based stereo error detection

no code implementations28 Nov 2017 Subhayan Mukherjee, Irene Cheng, Ram Mohana Reddy Guddeti, Anup Basu

As a remedy, we propose a novel error detection approach based solely on the input image and its depth map.

Binary Classification Stereo Depth Estimation +2

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