Search Results for author: Lina J. Karam

Found 10 papers, 1 papers with code

DNN-Compressed Domain Visual Recognition with Feature Adaptation

no code implementations13 May 2023 Yingpeng Deng, Lina J. Karam

For comparison, in addition to the performance results that are obtained using our proposed latent-based compressed-domain method, we also present performance results using compressed but fully decoded images in the pixel domain as well as original uncompressed images.

Computational Efficiency domain classification +1

Learning-based Compression for Material and Texture Recognition

no code implementations16 Apr 2021 Yingpeng Deng, Lina J. Karam

This motivated the development of new learning-based visual compression standards such as JPEG-AI.

domain classification General Classification +1

Towards Imperceptible Universal Attacks on Texture Recognition

no code implementations24 Nov 2020 Yingpeng Deng, Lina J. Karam

Although deep neural networks (DNNs) have been shown to be susceptible to image-agnostic adversarial attacks on natural image classification problems, the effects of such attacks on DNN-based texture recognition have yet to be explored.

Image Classification

A Study for Universal Adversarial Attacks on Texture Recognition

no code implementations4 Oct 2020 Yingpeng Deng, Lina J. Karam

Given the outstanding progress that convolutional neural networks (CNNs) have made on natural image classification and object recognition problems, it is shown that deep learning methods can achieve very good recognition performance on many texture datasets.

Adversarial Attack General Classification +3

Frequency-Tuned Universal Adversarial Attacks

no code implementations11 Mar 2020 Yingpeng Deng, Lina J. Karam

Researchers have shown that the predictions of a convolutional neural network (CNN) for an image set can be severely distorted by one single image-agnostic perturbation, or universal perturbation, usually with an empirically fixed threshold in the spatial domain to restrict its perceivability.

Adversarial Attack

It GAN DO Better: GAN-based Detection of Objects on Images with Varying Quality

no code implementations3 Dec 2019 Charan D. Prakash, Lina J. Karam

The resulting deep neural network maintains the exact architecture as the selected baseline model without adding to the model parameter complexity or inference speed.

Object object-detection +1

A Locally Weighted Fixation Density-Based Metric for Assessing the Quality of Visual Saliency Predictions

no code implementations1 Aug 2017 Milind S. Gide, Lina J. Karam

To compare the performance of our proposed metric at assessing the quality of saliency prediction with other existing metrics, we construct a ground-truth subjective database in which saliency maps obtained from 17 different VA models are evaluated by 16 human observers on a 5-point categorical scale in terms of their visual resemblance with corresponding ground-truth fixation density maps obtained from eye-tracking data.

Saliency Prediction

The Effect of Distortions on the Prediction of Visual Attention

no code implementations13 Apr 2016 Milind S. Gide, Samuel F. Dodge, Lina J. Karam

Furthermore, given that one potential application of visual saliency prediction is to aid pooling of objective visual quality metrics, it is important to compare the performance of existing saliency models on distorted images.

Saliency Prediction

Is Bottom-Up Attention Useful for Scene Recognition?

no code implementations22 Jul 2013 Samuel F. Dodge, Lina J. Karam

The human visual system employs a selective attention mechanism to understand the visual world in an eficient manner.

Classification General Classification +1

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