HolmeSketcher: Generative 3D Sketch Mapping for Spatial Reconstruction in Crime Scene Investigation
Tianyi Xiao, Yizi Chen, Sidi Wu, Peter Kiefer, Yan Feng + 1 more
TLDR
HolmeSketcher is a generative 3D sketch mapping system for crime scene investigation that improves spatial accuracy but has usability trade-offs.
Key contributions
- Introduces HolmeSketcher, a generative 3D sketch mapping system for crime scene investigation (CSI).
- Combines a 3D drawing interface with a deep learning pipeline for object generation and scene reconstruction.
- User study shows HolmeSketcher improves spatial accuracy and interpretability of reconstructed scenes.
- Derives three design implications for next-generation 3D sketch mapping tools for CSI.
Why it matters
This paper addresses the limitations of 2D crime scene mapping by introducing a novel 3D system. It highlights the potential for improved spatial understanding in forensic analysis. The derived design implications offer crucial guidance for developing next-generation tools in this critical domain.
Original Abstract
Sketch mapping is widely used in crime scene investigation (CSI) to document, interpret, and communicate spatial information. However, it is typically performed on 2D media, which limits its ability to represent 3D spatial relationships. We present HolmeSketcher, a generative 3D sketch mapping system that combines a front-end 3D drawing interface with a back-end deep learning pipeline to support object generation and scene reconstruction in extended reality. In a within-subject user study (N = 15), HolmeSketcher improved the spatial accuracy and interpretability of reconstructed scenes, but with a clear trade-off of higher task load and lower usability compared with paper-based 2D sketch mapping. By integrating findings from the user study and expert interviews (N = 3), we further derive three design implications for next-generation 3D sketch mapping tools for CSI.
📬 Weekly AI Paper Digest
Get the top 10 AI/ML arXiv papers from the week — summarized, scored, and delivered to your inbox every Monday.