Search Results for author: Hyomin Choi

Found 18 papers, 1 papers with code

Learned Disentangled Latent Representations for Scalable Image Coding for Humans and Machines

no code implementations10 Jan 2023 Ezgi Ozyilkan, Mateen Ulhaq, Hyomin Choi, Fabien Racape

As an increasing amount of image and video content will be analyzed by machines, there is demand for a new codec paradigm that is capable of compressing visual input primarily for the purpose of computer vision inference, while secondarily supporting input reconstruction.

object-detection Object Detection

Frequency-aware Learned Image Compression for Quality Scalability

no code implementations3 Jan 2023 Hyomin Choi, Fabien Racape, Shahab Hamidi-Rad, Mateen Ulhaq, Simon Feltman

Spatial frequency analysis and transforms serve a central role in most engineered image and video lossy codecs, but are rarely employed in neural network (NN)-based approaches.

Image Compression

Scalable Video Coding for Humans and Machines

no code implementations4 Aug 2022 Hyomin Choi, Ivan V. Bajić

Video content is watched not only by humans, but increasingly also by machines.

MS-SSIM Object +3

Joint Image Compression and Denoising via Latent-Space Scalability

no code implementations4 May 2022 Saeed Ranjbar Alvar, Mateen Ulhaq, Hyomin Choi, Ivan V. Bajić

In this paper, we present a learning-based image compression framework where image denoising and compression are performed jointly.

Image Compression Image Denoising +1

SFU-HW-Tracks-v1: Object Tracking Dataset on Raw Video Sequences

no code implementations30 Dec 2021 Takehiro Tanaka, Hyomin Choi, Ivan V. Bajić

We present a dataset that contains object annotations with unique object identities (IDs) for the High Efficiency Video Coding (HEVC) v1 Common Test Conditions (CTC) sequences.

Object Object Tracking +1

Scalable Image Coding for Humans and Machines

no code implementations18 Jul 2021 Hyomin Choi, Ivan V. Bajic

The simplest task is assigned to a subset of the latent space (the base layer), while more complicated tasks make use of additional subsets of the latent space, i. e., both the base and enhancement layer(s).

Autonomous Navigation

Latent-space scalability for multi-task collaborative intelligence

no code implementations21 May 2021 Hyomin Choi, Ivan V. Bajic

We investigate latent-space scalability for multi-task collaborative intelligence, where one of the tasks is object detection and the other is input reconstruction.

Object object-detection +1

Lightweight Compression of Intermediate Neural Network Features for Collaborative Intelligence

no code implementations15 May 2021 Robert A. Cohen, Hyomin Choi, Ivan V. Bajić

In collaborative intelligence applications, part of a deep neural network (DNN) is deployed on a lightweight device such as a mobile phone or edge device, and the remaining portion of the DNN is processed where more computing resources are available, such as in the cloud.

object-detection Object Detection +1

Lightweight compression of neural network feature tensors for collaborative intelligence

no code implementations12 May 2021 Robert A. Cohen, Hyomin Choi, Ivan V. Bajić

In collaborative intelligence applications, part of a deep neural network (DNN) is deployed on a relatively low-complexity device such as a mobile phone or edge device, and the remainder of the DNN is processed where more computing resources are available, such as in the cloud.

object-detection Object Detection

GAN-based Anomaly Detection in Imbalance Problems

no code implementations28 Aug 2020 Junbong Kim, Kwanghee Jeong, Hyomin Choi, and Kisung Seo

Imbalance problems in object detection are one of the key issues that affect the performance greatly.

 Ranked #1 on Anomaly Detection on MNIST (using extra training data)

Anomaly Detection Defect Detection +3

Back-and-Forth prediction for deep tensor compression

no code implementations14 Feb 2020 Hyomin Choi, Robert A. Cohen, Ivan V. Bajic

Recent AI applications such as Collaborative Intelligence with neural networks involve transferring deep feature tensors between various computing devices.

Deep Frame Prediction for Video Coding

no code implementations31 Dec 2018 Hyomin Choi, Ivan V. Bajic

We propose a novel frame prediction method using a deep neural network (DNN), with the goal of improving video coding efficiency.

Near-Lossless Deep Feature Compression for Collaborative Intelligence

no code implementations26 Apr 2018 Hyomin Choi, Ivan V. Bajic

However, this necessitates sending deep feature data from the mobile to the cloud in order to perform inference.

Feature Compression

Deep feature compression for collaborative object detection

no code implementations12 Feb 2018 Hyomin Choi, Ivan V. Bajic

Recent studies have shown that the efficiency of deep neural networks in mobile applications can be significantly improved by distributing the computational workload between the mobile device and the cloud.

Feature Compression Object +2

Can you find a face in a HEVC bitstream?

no code implementations30 Oct 2017 Saeed Ranjbar Alvar, Hyomin Choi, Ivan V. Bajic

Finding faces in images is one of the most important tasks in computer vision, with applications in biometrics, surveillance, human-computer interaction, and other areas.

High efficiency compression for object detection

no code implementations30 Oct 2017 Hyomin Choi, Ivan V. Bajic

In this paper we present a bit allocation and rate control strategy that is tailored to object detection.

Object object-detection +3

Can you tell a face from a HEVC bitstream?

no code implementations9 Sep 2017 Saeed Ranjbar Alvar, Hyomin Choi, Ivan V. Bajic

We focus on one of the poster problems of visual analytics -- face detection -- and approach the issue of reducing the computation by asking: Is it possible to detect a face without full image reconstruction from the High Efficiency Video Coding (HEVC) bitstream?

Face Detection Image Reconstruction

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