47 citations · 168 across the 14 of their papers we have counts for
15 papers
T-S2S: Training-free Triplet Tuning for Sketch to Scene Synthesis in Controllable Concept Art Generation
Zhenhong Sun, Yifu Wang, Yonhon Ng +4
2D concept art generation for 3D scenes is a crucial yet challenging task in computer graphics, as creating natural intuitive environments still demands extensive manual effort in…
Sketch2Scene: Automatic Generation of Interactive 3D Game Scenes from User's Casual Sketches
Yongzhi Xu, Yonhon Ng, Yifu Wang +6
3D Content Generation is at the heart of many computer graphics applications, including video gaming, film-making, virtual and augmented reality, etc. This paper proposes a novel d…
High Frequency, High Accuracy Pointing onboard Nanosats using Neuromorphic Event Sensing and Piezoelectric Actuation
Yasir Latif, Peter Anastasiou, Yonhon Ng +5
As satellites become smaller, the ability to maintain stable pointing decreases as external forces acting on the satellite come into play. At the same time, reaction wheels used in…
MAVIS: Multi-Camera Augmented Visual-Inertial SLAM using SE2(3) Based Exact IMU Pre-integration
Yifu Wang, Yonhon Ng, Inkyu Sa +4
We present a novel optimization-based Visual-Inertial SLAM system designed for multiple partially overlapped camera systems, named MAVIS. Our framework fully exploits the benefits…
An Asynchronous Linear Filter Architecture for Hybrid Event-Frame Cameras
Ziwei Wang, Yonhon Ng, Cedric Scheerlinck +1
Event cameras are ideally suited to capture High Dynamic Range (HDR) visual information without blur but provide poor imaging capability for static or slowly varying scenes. Conver…
Overcoming Bias: Equivariant Filter Design for Biased Attitude Estimation with Online Calibration
Alessandro Fornasier, Yonhon Ng, Christian Brommer +3
Stochastic filters for on-line state estimation are a core technology for autonomous systems. The performance of such filters is one of the key limiting factors to a system's capab…
Smart Visual Beacons with Asynchronous Optical Communications using Event Cameras
Ziwei Wang, Yonhon Ng, Jack Henderson +1
Event cameras are bio-inspired dynamic vision sensors that respond to changes in image intensity with a high temporal resolution, high dynamic range and low latency. These sensor c…
A Linear Comb Filter for Event Flicker Removal
Ziwei Wang, Dingran Yuan, Yonhon Ng +1
Event cameras are bio-inspired sensors that capture per-pixel asynchronous intensity change rather than the synchronous absolute intensity frames captured by a classical camera sen…
Equivariant Filter Design for Inertial Navigation Systems with Input Measurement Biases
Alessandro Fornasier, Yonhon Ng, Robert Mahony +1
Inertial Navigation Systems (INS) are a key technology for autonomous vehicles applications. Recent advances in estimation and filter design for the INS problem have exploited geom…
Stereo Hybrid Event-Frame (SHEF) Cameras for 3D Perception
Ziwei Wang, Liyuan Pan, Yonhon Ng +2
Stereo camera systems play an important role in robotics applications to perceive the 3D world. However, conventional cameras have drawbacks such as low dynamic range, motion blur…
Uncertainty Estimation of Dense Optical-Flow for Robust Visual Navigation
Yonhon Ng, Hongdong Li, Jonghyuk Kim
This paper presents a novel dense optical-flow algorithm to solve the monocular simultaneous localization and mapping (SLAM) problem for ground or aerial robots. Dense optical flow…
Equivariant Systems Theory and Observer Design for Second Order Kinematic Systems on Matrix Lie Groups
Yonhon Ng, Pieter van Goor, Tarek Hamel +1
This paper presents the equivariant systems theory and observer design for second order kinematic systems on matrix Lie groups. The state of a second order kinematic system on a ma…
Attitude Observation for Second Order Attitude Kinematics
Yonhon Ng, Pieter van Goor, Robert Mahony +1
This paper addresses the problem of estimating the attitude and angular velocity of a rigid object by exploiting its second order kinematic model. The approach is particularly usef…
Event Camera Calibration of Per-pixel Biased Contrast Threshold
Ziwei Wang, Yonhon Ng, Pieter van Goor +1
Event cameras output asynchronous events to represent intensity changes with a high temporal resolution, even under extreme lighting conditions. Currently, most of the existing wor…
An Asynchronous Kalman Filter for Hybrid Event Cameras
Ziwei Wang, Yonhon Ng, Cedric Scheerlinck +1
Event cameras are ideally suited to capture HDR visual information without blur but perform poorly on static or slowly changing scenes. Conversely, conventional image sensors measu…