Search Results for author: Iuri Frosio

Found 16 papers, 7 papers with code

Online Overexposed Pixels Hallucination in Videos with Adaptive Reference Frame Selection

no code implementations29 Aug 2023 Yazhou Xing, Amrita Mazumdar, Anjul Patney, Chao Liu, Hongxu Yin, Qifeng Chen, Jan Kautz, Iuri Frosio

We present a learning-based system to reduce these artifacts without resorting to complex acquisition mechanisms like alternating exposures or costly processing that are typical of high dynamic range (HDR) imaging.

Hallucination

The Best Defense is a Good Offense: Adversarial Augmentation against Adversarial Attacks

1 code implementation CVPR 2023 Iuri Frosio, Jan Kautz

Many defenses against adversarial attacks (\eg robust classifiers, randomization, or image purification) use countermeasures put to work only after the attack has been crafted.

Improve Agents without Retraining: Parallel Tree Search with Off-Policy Correction

1 code implementation NeurIPS 2021 Assaf Hallak, Gal Dalal, Steven Dalton, Iuri Frosio, Shie Mannor, Gal Chechik

We first discover and analyze a counter-intuitive phenomenon: action selection through TS and a pre-trained value function often leads to lower performance compared to the original pre-trained agent, even when having access to the exact state and reward in future steps.

Atari Games

Noise-Aware Video Saliency Prediction

1 code implementation16 Apr 2021 Ekta Prashnani, Orazio Gallo, Joohwan Kim, Josef Spjut, Pradeep Sen, Iuri Frosio

We note that the accuracy of the maps reconstructed from the gaze data of a fixed number of observers varies with the frame, as it depends on the content of the scene.

Saliency Prediction Video Saliency Prediction

Robust Vision-Based Cheat Detection in Competitive Gaming

no code implementations18 Mar 2021 Aditya Jonnalagadda, Iuri Frosio, Seth Schneider, Morgan McGuire, Joohwan Kim

Game publishers and anti-cheat companies have been unsuccessful in blocking cheating in online gaming.

Blocking

Generating and Characterizing Scenarios for Safety Testing of Autonomous Vehicles

no code implementations12 Mar 2021 Zahra Ghodsi, Siva Kumar Sastry Hari, Iuri Frosio, Timothy Tsai, Alejandro Troccoli, Stephen W. Keckler, Siddharth Garg, Anima Anandkumar

Extracting interesting scenarios from real-world data as well as generating failure cases is important for the development and testing of autonomous systems.

Autonomous Vehicles

How to Close Sim-Real Gap? Transfer with Segmentation!

no code implementations14 May 2020 Mengyuan Yan, Qingyun Sun, Iuri Frosio, Stephen Tyree, Jan Kautz

Combining the control policy learned from simulation with the perception model, we achieve an impressive $\bf{88\%}$ success rate in grasping a tiny sphere with a real robot.

Robotics

Accelerating Reinforcement Learning through GPU Atari Emulation

2 code implementations NeurIPS 2020 Steven Dalton, Iuri Frosio, Michael Garland

We introduce CuLE (CUDA Learning Environment), a CUDA port of the Atari Learning Environment (ALE) which is used for the development of deep reinforcement algorithms.

Atari Games reinforcement-learning +1

Importance Estimation for Neural Network Pruning

3 code implementations CVPR 2019 Pavlo Molchanov, Arun Mallya, Stephen Tyree, Iuri Frosio, Jan Kautz

On ResNet-101, we achieve a 40% FLOPS reduction by removing 30% of the parameters, with a loss of 0. 02% in the top-1 accuracy on ImageNet.

Network Pruning

Tackling 3D ToF Artifacts Through Learning and the FLAT Dataset

no code implementations ECCV 2018 Qi Guo, Iuri Frosio, Orazio Gallo, Todd Zickler, Jan Kautz

Scene motion, multiple reflections, and sensor noise introduce artifacts in the depth reconstruction performed by time-of-flight cameras.

On Nearest Neighbors in Non Local Means Denoising

no code implementations20 Nov 2017 Iuri Frosio, Jan Kautz

To denoise a reference patch, the Non-Local-Means denoising filter processes a set of neighbor patches.

Denoising

Reinforcement Learning through Asynchronous Advantage Actor-Critic on a GPU

3 code implementations18 Nov 2016 Mohammad Babaeizadeh, Iuri Frosio, Stephen Tyree, Jason Clemons, Jan Kautz

We introduce a hybrid CPU/GPU version of the Asynchronous Advantage Actor-Critic (A3C) algorithm, currently the state-of-the-art method in reinforcement learning for various gaming tasks.

reinforcement-learning Reinforcement Learning (RL) +1

Learning Adaptive Parameter Tuning for Image Processing

no code implementations28 Oct 2016 Jingming Dong, Iuri Frosio, Jan Kautz

The non-stationary nature of image characteristics calls for adaptive processing, based on the local image content.

Deblurring Demosaicking +1

Loss Functions for Neural Networks for Image Processing

2 code implementations28 Nov 2015 Hang Zhao, Orazio Gallo, Iuri Frosio, Jan Kautz

Neural networks are becoming central in several areas of computer vision and image processing and different architectures have been proposed to solve specific problems.

Image Restoration

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