# 3-D interactive visualisation tools for HI spectral line imaging

## TL;DR

This paper introduces SlicerAstro, an open-source 3-D visualization tool built on 3DSlicer, designed to facilitate inspection and analysis of large HI spectral line datasets from upcoming surveys.

## Contribution

The paper presents SlicerAstro, a novel open-source extension enabling advanced 3-D visualization and analysis of HI spectral line data for astronomical research.

## Key findings

- Supports 3-D filtering and selection
- Enables comparative modeling of HI data
- Facilitates qualitative and quantitative inspection

## Abstract

Upcoming HI surveys will deliver such large datasets that automated processing using the full 3-D information to find and characterize HI objects is unavoidable. Full 3-D visualization is an essential tool for enabling qualitative and quantitative inspection and analysis of the 3-D data, which is often complex in nature. Here we present $\tt{SlicerAstro}$, an open-source extension of 3DSlicer, a multi-platform open source software package for visualization and medical image processing, which we developed for the inspection and analysis of HI spectral line data. We describe its initial capabilities, including 3-D filtering, 3-D selection and comparative modelling.