?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Model+Retrieval+by+3D+Sketching+in+Immersive+Virtual+Reality&rft.creator=Giunchi%2C+D&rft.creator=James%2C+S&rft.creator=Steed%2C+A&rft.description=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%2C+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%2C+color+and+texture.+Unlike+previous+sketch-based+retrieval+methods%2C+users+remain+immersed+within+the+environment+without+relying+on+textual+queries+or+2D+projections+which+can+disconnect+the+user+from+the+environment.+We+show+how+a+convolutional+neural+network+(CNN)+can+create+multi-view+representations+of+colored+3D+sketches.+Using+such+a+descriptor+representation%2C+our+system+is+able+to+rapidly+retrieve+models+and+in+this+way%2C+we+provide+the+user+with+an+interactive+method+of+navigating+large+object+datasets.+Through+a+preliminary+user+study+we+demonstrate+that+by+using+our+VR+3D+model+retrieval+system%2C+users+can+perform+quick+and+intuitive+search.+Using+our+system+users+can+rapidly+populate+a+virtual+environment+with+specific+models+from+a+very+large+database%2C+and+thus+the+technique+has+the+potential+to+be+broadly+applicable+in+immersive+editing+systems.&rft.date=2018-08-24&rft.type=Poster&rft.language=eng&rft.source=+++Presented+at%3A+2018+IEEE+Conference+on+Virtual+Reality+and+3D+User+Interfaces+(VR)%2C+Reutlingen%2C+Germany.+(2018)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10058867%2F1%2FDGiunchi_IEEEVR2018_poster.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10058867%2F&rft.rights=open