Review on panoramic imaging and its applications in scene understanding

S Gao, K Yang, H Shi, K Wang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
With the rapid development of high-speed communication and artificial intelligence
technologies, human perception of real-world scenes is no longer limited to the use of small …

Panoramic annular SLAM with loop closure and global optimization

H Chen, W Hu, K Yang, J Bai, K Wang - Applied Optics, 2021 - opg.optica.org
In this paper, we propose panoramic annular simultaneous localization and mapping (PA-
SLAM), a visual SLAM system based on a panoramic annular lens. A hybrid point selection …

Design of a compact triple-channel panoramic stereo imaging system

N Pan, S Gao, J Bai, K Wang - Optics Express, 2023 - opg.optica.org
We propose a compact form of the triple-channel panoramic annular lens (PAL) with a
stereo field and no central blind area based on polarization technology, which solves the …

PALVO: visual odometry based on panoramic annular lens

H Chen, K Wang, W Hu, K Yang, R Cheng, X Huang… - Optics express, 2019 - opg.optica.org
Visual odometry has received a great deal of attention during the past decade. However,
being fragile to rapid motion and dynamic scenarios prevents it from practical use. Here, we …

Design of a compact dual-channel panoramic annular lens with a large aperture and high resolution

S Gao, EA Tsyganok, X Xu - Applied Optics, 2021 - opg.optica.org
We propose a compact dual-channel panoramic annular lens (PAL) with a large aperture
and high resolution to solve three major shortcomings of conventional PAL systems …

Design of a panoramic annular lens with ultrawide angle and small blind area

K Zhang, X Zhong, L Zhang, T Zhang - Applied optics, 2020 - opg.optica.org
A panoramic annular lens (PAL) comprises a panoramic annular head unit (PAHU) and a
relay lens group. Due to the properties of annular imaging, single-channel PAL systems …

Robustifying semantic cognition of traversability across wearable RGB-depth cameras

K Yang, LM Bergasa, E Romera, K Wang - Applied optics, 2019 - opg.optica.org
Semantic segmentation represents a promising means to unify different detection tasks,
especially pixel-wise traversability perception as the fundamental enabler in robotic vision …

Research on design, calibration and real-time image expansion technology of unmanned system variable-scale panoramic vision system

X Guo, Z Wang, W Zhou, Z Zhang - Sensors, 2021 - mdpi.com
This paper summarized the research status, imaging model, systems calibration, distortion
correction, and panoramic expansion of panoramic vision systems, pointed out the existing …

Real-time ghost image characterization for panoramic annular lenses

Y Liao, F Ke, Y Pan, S Gao, J Bai, K Wang - Optics Express, 2024 - opg.optica.org
As a common but troublesome branch of stray light, ghost images in catadioptric optical
systems greatly limit the performances of such optics, including panoramic annular lenses …

Mathematical modeling and implementation of a panoramic zoom system without central blind area

H Liu, S Gao, J Bai, K Wang - Optics Communications, 2024 - Elsevier
The panoramic annular lens (PAL) is renowned for providing simultaneous vision of the
panoramic space. However, its inherent central blind area is a significant drawback. In this …