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HiPS Technology for Seamless Multiscale Visualization of Massive Astronomical Survey Data

Explore Hierarchical Progressive Survey (HiPS) technology for visualizing vast sky survey data seamlessly at multiple scales. Utilize tiles and pixels with TOAST for effective data import into WWT's map projections. Enhance skyview display with WWT tools like Aladin, Aladin-Lite, MIZAR, and more.

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HiPS Technology for Seamless Multiscale Visualization of Massive Astronomical Survey Data

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  1. 海量巡天数据在线可视化调研 张磊 国家天文台

  2. BIG DATA

  3. 一、海量巡天数据的分层可视化技术

  4. HiPS——Hierarchical Progressive Survey “ The more you zoom in on a particular area, the more details show up” • Mult-resoluton HEALPix data structure for Images, Catalogues, 3-dimensional data cubes, ... • Keep scientfc data propertes • Seamless mult-scale visualisaton • No databases or dedicated servers required, just HTTP upon a file hierarchy HEALPix球面网格划分示意图

  5. HiPS——Hierarchical Progressive Survey Tiles and Pixels

  6. More a more HiPS clients : → Aladin Desktop (CDS), Aladin Lite (CDS), MIZAR (CNES) + Aladin Lite implementation: ESAsky (ESAC), JUDO2 (JAXA) ... + Aladin Lite web page inclusion: Simbad, VizieR, GLIMPSE360, ADS allsky, AstroDEEP, CDS portal v2… + Aladin Desktop usage “diversion”: Arches walker

  7. TOAST——Tessellated Octahedral Adaptive Subdivision Transform 用于将全天空数据导入WWT的地图投影 每个TOAST像素是一对HTM三角形 HTM的球面网格划分示意图

  8. TOAST——Tessellated Octahedral Adaptive Subdivision Transform TOAST还意味着一个文件组织方法 TOAST图像金字塔

  9. 二、skyview展示形式

  10. WWT Desktop WWT Web Client

  11. Aladin和Aladin-Lite

  12. MIZAR(CNES)

  13. Aladin Lite implementation Imaging Toolbox ESASky JUDO2

  14. Aladin Lite web page inclusion VizieR SIMBAD

  15. Aladin Lite web page inclusion AstroDEEP CDS portal v2

  16. Aladin Lite web page inclusion GLIMPSE360 ADS allsky

  17. Aladin Desktop usage “diversion” Arches walker

  18. DECaLS(DECam Legacy Survey) Tile Manager: Leaflet CFHTLS (Canada-France-Hawaii Telescope Legacy Survey) HSC-SSP (Hyper Suprime-Cam Subaru Strategic Program)

  19. 三、生成skyview的工具

  20. 2 HiPS generators: Aladin/Hipsgen (image & cubes) Hipsgen-cat (catalogs) 2 TOAST generators: WWT SDK Montage

  21. 使用Aladin生成image hips 使用Hipsgen生成的image hips 文件目录结构

  22. 使用Hipsgen-cat生成的catalogs hips 文件目录结构

  23. WWT SDK 在WWT中展示m17 使用WWT SDK生成的M17目录结构

  24. Montage Version 5.0 provides support for HEALPIX data and for consumption of images by the WorldWide Telescope (WWT). 使用Montage生成的 All-Sky Planck Map 目录结构

  25. ImageMagick & Trilogy Tile Manager: Leaflet Projection: Mercator Examples: DECaLS、CFHTLS、HSC-SSP··· HSC-SSP

  26. Thanks！

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