[M-ZZ40] プラネタリーディフェンス—国際的な取り組みと協力

[MZZ40-08] Visualization function of HEAT in 3D for thermal imagers on Hayabusa2 and Hera

*ヴィラルデル　ベレス ラモン¹、出村 裕英²、賀数 健吾⁵、荒井 武彦³、千秋 博紀⁶、坂谷 尚哉⁴、岡田 達明⁴ (1.会津大学大学院コンピュータ理工学研究科、2.会津大学宇宙情報科学研究センター、3.前橋工科大学、4.宇宙航空研究開発機構宇宙科学研究所、5.会津大学コンピュータ理工学部、6.千葉工業大学惑星探査研究センター)

キーワード：Hera、はやぶさ２、HEAT、可視化、熱カメラ、GUI

Abstract—HEAT, the Hayabusa2/Hera Exploration Assistant for Thermal Imagers, plays a crucial role in mapping the thermal characteristics of asteroids. HEAT offers a flexible method for calibration and conversion of the data captured by thermal infrared imagers, TIR on Hayabusa2 for 162173 Ryugu and TIRI on Hera spacecraft for 65803 Didymos including its accompanying moon, Dimorphos. HEAT facilitates 2D and 3D data depicting brightness temperature, radiation flux, and thermal inertia. Through the integration of thread parallelization with OpenMP, we significantly decreased the computing time for data processing. The architecture-agnostic design of our parallelization technique guarantees compatibility with diverse computing platforms, enhancing HEAT's scalability and flexibility for upcoming missions. Recent enhancements have introduced advanced 3D visualization capabilities, powered by Python-based tools like PyQt5, PyVista, and PyVistaQT. This enhances usability and enables the visualisation of TIRI data, which now includes seven bands and a shutter-closed one. Now is possible to visualize the asteroid surfaces with detail, spotting key features like depressions.
HEAT employs techniques like Laplacian smoothing and curvature flow to enhance the clarity of visuals and provide insights into asteroid surfaces. Moreover, users can personalize their visualizations with various data-colors and toggle mesh edges for comprehensive analysis. HEAT's dynamic rotation and intelligent camera features ensure a good viewing perspective. Looking ahead, HEAT aims to further develop algorithms for feature detection and enhancing data analysis capabilities. With HEAT, the exploration of asteroids becomes an incredible tool for data scientists to analyse asteroids.