Direct initial orbit determination

no code implementations • 28 Aug 2023 • Chee-Kheng Chng, Trent Jansen-Sturgeon, Timothy Payne, Tat-Jun Chin

Initial orbit determination (IOD) is an important early step in the processing chain that makes sense of and reconciles the multiple optical observations of a resident space object.

ROSIA: Rotation-Search-Based Star Identification Algorithm

1 code implementation • 2 Oct 2022 • Chee-Kheng Chng, Alvaro Parra Bustos, Benjamin McCarthy, Tat-Jun Chin

This paper presents a rotation-search-based approach for addressing the star identification (Star-ID) problem.

Monocular Rotational Odometry with Incremental Rotation Averaging and Loop Closure

no code implementations • 5 Oct 2020 • Chee-Kheng Chng, Alvaro Parra, Tat-Jun Chin, Yasir Latif

To simplify the task of absolute orientation estimation, we formulate the monocular rotational odometry problem and devise a fast algorithm to accurately estimate camera orientations with 2D-2D feature matches alone.

Visual Odometry

ICDAR 2019 Competition on Large-scale Street View Text with Partial Labeling -- RRC-LSVT

1 code implementation • 17 Sep 2019 • Yipeng Sun, Zihan Ni, Chee-Kheng Chng, Yuliang Liu, Canjie Luo, Chun Chet Ng, Junyu Han, Errui Ding, Jingtuo Liu, Dimosthenis Karatzas, Chee Seng Chan, Lianwen Jin

Robust text reading from street view images provides valuable information for various applications.

Text Detection Text Spotting +1

ICDAR2019 Robust Reading Challenge on Arbitrary-Shaped Text (RRC-ArT)

1 code implementation • 16 Sep 2019 • Chee-Kheng Chng, Yuliang Liu, Yipeng Sun, Chun Chet Ng, Canjie Luo, Zihan Ni, ChuanMing Fang, Shuaitao Zhang, Junyu Han, Errui Ding, Jingtuo Liu, Dimosthenis Karatzas, Chee Seng Chan, Lianwen Jin

This paper reports the ICDAR2019 Robust Reading Challenge on Arbitrary-Shaped Text (RRC-ArT) that consists of three major challenges: i) scene text detection, ii) scene text recognition, and iii) scene text spotting.

Scene Text Detection Scene Text Recognition +2