Search Results for author: Zezhou Cheng

Found 11 papers, 5 papers with code

Deep Colorization

1 code implementation ICCV 2015 Zezhou Cheng, Qingxiong Yang, Bin Sheng

This paper investigates into the colorization problem which converts a grayscale image to a colorful version.

Clustering Colorization +2

Detecting and Tracking Communal Bird Roosts in Weather Radar Data

no code implementations24 Apr 2020 Zezhou Cheng, Saadia Gabriel, Pankaj Bhambhani, Daniel Sheldon, Subhransu Maji, Andrew Laughlin, David Winkler

The US weather radar archive holds detailed information about biological phenomena in the atmosphere over the last 20 years.

On Equivariant and Invariant Learning of Object Landmark Representations

1 code implementation ICCV 2021 Zezhou Cheng, Jong-Chyi Su, Subhransu Maji

Given a collection of images, humans are able to discover landmarks by modeling the shared geometric structure across instances.

Contrastive Learning Object +1

A Realistic Evaluation of Semi-Supervised Learning for Fine-Grained Classification

1 code implementation CVPR 2021 Jong-Chyi Su, Zezhou Cheng, Subhransu Maji

We evaluate the effectiveness of semi-supervised learning (SSL) on a realistic benchmark where data exhibits considerable class imbalance and contains images from novel classes.

General Classification Transfer Learning

GANORCON: Are Generative Models Useful for Few-shot Segmentation?

no code implementations CVPR 2022 Oindrila Saha, Zezhou Cheng, Subhransu Maji

Motivated by this we present an alternative approach based on contrastive learning and compare their performance on standard few-shot part segmentation benchmarks.

Contrastive Learning Image Generation +1

Improving Few-Shot Part Segmentation using Coarse Supervision

no code implementations11 Apr 2022 Oindrila Saha, Zezhou Cheng, Subhransu Maji

A significant bottleneck in training deep networks for part segmentation is the cost of obtaining detailed annotations.

Multi-Task Learning Segmentation

Cross-Modal 3D Shape Generation and Manipulation

no code implementations24 Jul 2022 Zezhou Cheng, Menglei Chai, Jian Ren, Hsin-Ying Lee, Kyle Olszewski, Zeng Huang, Subhransu Maji, Sergey Tulyakov

In this paper, we propose a generic multi-modal generative model that couples the 2D modalities and implicit 3D representations through shared latent spaces.

3D Generation 3D Shape Generation

Accidental Turntables: Learning 3D Pose by Watching Objects Turn

no code implementations13 Dec 2022 Zezhou Cheng, Matheus Gadelha, Subhransu Maji

We propose a technique for learning single-view 3D object pose estimation models by utilizing a new source of data -- in-the-wild videos where objects turn.

3D Pose Estimation

LU-NeRF: Scene and Pose Estimation by Synchronizing Local Unposed NeRFs

no code implementations ICCV 2023 Zezhou Cheng, Carlos Esteves, Varun Jampani, Abhishek Kar, Subhransu Maji, Ameesh Makadia

Consequently, there is growing interest in extending NeRF models to jointly optimize camera poses and scene representation, which offers an alternative to off-the-shelf SfM pipelines which have well-understood failure modes.

Pose Estimation

Machine Unlearning of Pre-trained Large Language Models

1 code implementation23 Feb 2024 Jin Yao, Eli Chien, Minxin Du, Xinyao Niu, Tianhao Wang, Zezhou Cheng, Xiang Yue

This study investigates the concept of the `right to be forgotten' within the context of large language models (LLMs).

Machine Unlearning

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