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3D Sketching for Interactive Model Retrieval in Virtual Reality

Giunchi, D; James, S; Steed, A; (2018) 3D Sketching for Interactive Model Retrieval in Virtual Reality. In: Expressive '18: Proceedings of the Joint Symposium on Computational Aesthetics and Sketch-Based Interfaces and Modeling and Non-Photorealistic Animation and Rendering. (pp. Art. 1). Association for Computing Machinery (ACM) Green open access

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Abstract

We describe a novel method for searching 3D model collections using free-form sketches within a virtual environment as queries. As opposed to traditional sketch retrieval, our queries are drawn directly onto an example model. Using immersive virtual reality the user can express their query through a sketch that demonstrates the desired structure, color and texture. Unlike previous sketch-based retrieval methods, users remain immersed within the environment without relying on textual queries or 2D projections which can disconnect the user from the environment. We perform a test using queries over several descriptors, evaluating the precision in order to select the most accurate one. We show how a convolutional neural network (CNN) can create multi-view representations of colored 3D sketches. Using such a descriptor representation, our system is able to rapidly retrieve models and in this way, we provide the user with an interactive method of navigating large object datasets. Through a user study we demonstrate that by using our VR 3D model retrieval system, users can perform search more quickly and intuitively than with a naive linear browsing method. Using our system users can rapidly populate a virtual environment with specific models from a very large database, and thus the technique has the potential to be broadly applicable in immersive editing systems.

Type: Proceedings paper
Title: 3D Sketching for Interactive Model Retrieval in Virtual Reality
Event: Expressive 2018, Joint Symposium on Computational Aesthetics and Sketch-Based Interfaces and Modeling and Non-Photorealistic Animation and Rendering, 17-19 August 2018, Victoria, British Columbia, Canada
Location: Victoria, British Columbia,Canada
Dates: 17 August 2018 - 19 August 2018
ISBN-13: 9781450358927
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/3229147.3229166
Publisher version: https://dx.doi.org/10.1145/3229147.3229166
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Sketch, Virtual Reality, CNN, HCI
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/10060176
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