Full name: 2021 4th International Conference on Virtual Reality Technology (ICVRT 2021)--Ei Compendex, Scopus Abbreviation: ICVRT 2021 2021 4th International Conference on Virtual Reality Technology (ICVRT 2021) Wuhan, China | November 19-21, 2021 →Publication: Accepted papers of ICVRT 2021 after proper registration and presentation will be published in the conference proceedings, which will be submitted for indexing by Ei Compendex, Scopus, etc. →Topics: Applications in telecommunications, Content-based image retrieval, Adaptive signal processing, Adaptive filters, Adaptive and clustering algorithms, Cyclo-stationary signal analysis, Array signal processing, Animation, Application of remote sensing image processing, Digital entertainment and education, Augmented reality (AR), Artificial life etc. For more topics, please check：http://icvrt.org/cfp.html →Submission Guideline: ▶Language: All submissions should be written in English. ▶Submission Types: Abstract submission for presentation only without publication; Full paper submission for both presentation and publication. ▶Paper Length: The submitted papers should be no less than 8 pages. The maximum paper length is 10 printed pages, including all figures, tables, and references, and extra page will be charged. ▶How to submit? Send to official email directly: icvrt@iacsit.net or Submit via Online submission system: http://confsys.iconf.org/submission/icvrt2021 →Online Presentation: As your safety is our top priority and concern, the conference has added online attendance / presentation for participants in case of you cannot attend the conference because of the COVID-19. Participants will benefit of registration fee reduction after choosing online attendance / presentation. Accepted papers after registration will still be published normally. →Contact: Conference secretary: Ms. Yolanda Dong Email: icvrt@iacsit.net WeChat: iacsit2009 Tel: +86-18080013977  Website: http://icvrt.org/ Office Hour: 9:30--18:00, Monday to Friday (GMT+8 Time Zone)