Search Results for author: Sung Jin Hwang

Found 9 papers, 4 papers with code

LVAC: Learned Volumetric Attribute Compression for Point Clouds using Coordinate Based Networks

1 code implementation17 Nov 2021 Berivan Isik, Philip A. Chou, Sung Jin Hwang, Nick Johnston, George Toderici

We consider the attributes of a point cloud as samples of a vector-valued volumetric function at discrete positions.

Attribute

Towards a Semantic Perceptual Image Metric

no code implementations1 Aug 2018 Troy Chinen, Johannes Ballé, Chunhui Gu, Sung Jin Hwang, Sergey Ioffe, Nick Johnston, Thomas Leung, David Minnen, Sean O'Malley, Charles Rosenberg, George Toderici

We present a full reference, perceptual image metric based on VGG-16, an artificial neural network trained on object classification.

Image Quality Assessment

Image-Dependent Local Entropy Models for Learned Image Compression

no code implementations31 May 2018 David Minnen, George Toderici, Saurabh Singh, Sung Jin Hwang, Michele Covell

The leading approach for image compression with artificial neural networks (ANNs) is to learn a nonlinear transform and a fixed entropy model that are optimized for rate-distortion performance.

Image Compression

Spatially adaptive image compression using a tiled deep network

no code implementations7 Feb 2018 David Minnen, George Toderici, Michele Covell, Troy Chinen, Nick Johnston, Joel Shor, Sung Jin Hwang, Damien Vincent, Saurabh Singh

Deep neural networks represent a powerful class of function approximators that can learn to compress and reconstruct images.

Image Compression

Target-Quality Image Compression with Recurrent, Convolutional Neural Networks

no code implementations18 May 2017 Michele Covell, Nick Johnston, David Minnen, Sung Jin Hwang, Joel Shor, Saurabh Singh, Damien Vincent, George Toderici

Our methods introduce a multi-pass training method to combine the training goals of high-quality reconstructions in areas around stop-code masking as well as in highly-detailed areas.

Image Compression

Improved Lossy Image Compression with Priming and Spatially Adaptive Bit Rates for Recurrent Networks

no code implementations CVPR 2018 Nick Johnston, Damien Vincent, David Minnen, Michele Covell, Saurabh Singh, Troy Chinen, Sung Jin Hwang, Joel Shor, George Toderici

We propose a method for lossy image compression based on recurrent, convolutional neural networks that outperforms BPG (4:2:0 ), WebP, JPEG2000, and JPEG as measured by MS-SSIM.

Image Compression MS-SSIM +1

Full Resolution Image Compression with Recurrent Neural Networks

7 code implementations CVPR 2017 George Toderici, Damien Vincent, Nick Johnston, Sung Jin Hwang, David Minnen, Joel Shor, Michele Covell

As far as we know, this is the first neural network architecture that is able to outperform JPEG at image compression across most bitrates on the rate-distortion curve on the Kodak dataset images, with and without the aid of entropy coding.

Image Compression

Variable Rate Image Compression with Recurrent Neural Networks

1 code implementation19 Nov 2015 George Toderici, Sean M. O'Malley, Sung Jin Hwang, Damien Vincent, David Minnen, Shumeet Baluja, Michele Covell, Rahul Sukthankar

A large fraction of Internet traffic is now driven by requests from mobile devices with relatively small screens and often stringent bandwidth requirements.

Image Compression Image Reconstruction

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