activity
20202024
most citedNothing But Geometric Constraints: A Model-Free Method for Articulated Object Pose Estimation

15 citations · 34 across the 12 of their papers we have counts for

collaborators

12 papers

cs.CV2024★ 1 cited

DIRECT-3D: Learning Direct Text-to-3D Generation on Massive Noisy 3D Data

Qihao Liu, Yi Zhang, Song Bai +2

We present DIRECT-3D, a diffusion-based 3D generative model for creating high-quality 3D assets (represented by Neural Radiance Fields) from text prompts. Unlike recent 3D generati…

cs.CV2023★ 5 cited

General Object Foundation Model for Images and Videos at Scale

Junfeng Wu, Yi Jiang, Qihao Liu +3

We present GLEE in this work, an object-level foundation model for locating and identifying objects in images and videos. Through a unified framework, GLEE accomplishes detection,…

cs.CV2023★ 2 cited

Animal3D: A Comprehensive Dataset of 3D Animal Pose and Shape

Jiacong Xu, Yi Zhang, Jiawei Peng +17

Accurately estimating the 3D pose and shape is an essential step towards understanding animal behavior, and can potentially benefit many downstream applications, such as wildlife c…

cs.CV2023★ 1 cited

Generating Images with 3D Annotations Using Diffusion Models

Wufei Ma, Qihao Liu, Jiahao Wang +11

Diffusion models have emerged as a powerful generative method, capable of producing stunning photo-realistic images from natural language descriptions. However, these models lack e…

cs.CV2023★ 2 cited

Discovering Failure Modes of Text-guided Diffusion Models via Adversarial Search

Qihao Liu, Adam Kortylewski, Yutong Bai +2

Text-guided diffusion models (TDMs) are widely applied but can fail unexpectedly. Common failures include: (i) natural-looking text prompts generating images with the wrong content…

cs.CV2023

InstMove: Instance Motion for Object-centric Video Segmentation

Qihao Liu, Junfeng Wu, Yi Jiang +3

Despite significant efforts, cutting-edge video segmentation methods still remain sensitive to occlusion and rapid movement, due to their reliance on the appearance of objects in t…

cs.CV2023

PoseExaminer: Automated Testing of Out-of-Distribution Robustness in Human Pose and Shape Estimation

Qihao Liu, Adam Kortylewski, Alan Yuille

Human pose and shape (HPS) estimation methods achieve remarkable results. However, current HPS benchmarks are mostly designed to test models in scenarios that are similar to the tr…

cs.CV2022

The Runner-up Solution for YouTube-VIS Long Video Challenge 2022

Junfeng Wu, Yi Jiang, Qihao Liu +2

This technical report describes our 2nd-place solution for the ECCV 2022 YouTube-VIS Long Video Challenge. We adopt the previously proposed online video instance segmentation metho…

cs.CV2022★ 4 cited

Explicit Occlusion Reasoning for Multi-person 3D Human Pose Estimation

Qihao Liu, Yi Zhang, Song Bai +1

Occlusion poses a great threat to monocular multi-person 3D human pose estimation due to large variability in terms of the shape, appearance, and position of occluders. While exist…

cs.CV2022★ 1 cited

In Defense of Online Models for Video Instance Segmentation

Junfeng Wu, Qihao Liu, Yi Jiang +3

In recent years, video instance segmentation (VIS) has been largely advanced by offline models, while online models gradually attracted less attention possibly due to their inferio…

cs.CV2021★ 3 cited

Learning Part Segmentation through Unsupervised Domain Adaptation from Synthetic Vehicles

Qing Liu, Adam Kortylewski, Zhishuai Zhang +7

Part segmentations provide a rich and detailed part-level description of objects. However, their annotation requires an enormous amount of work, which makes it difficult to apply s…

cs.CV2020★ 15 cited

Nothing But Geometric Constraints: A Model-Free Method for Articulated Object Pose Estimation

Qihao Liu, Weichao Qiu, Weiyao Wang +2

We propose an unsupervised vision-based system to estimate the joint configurations of the robot arm from a sequence of RGB or RGB-D images without knowing the model a priori, and…