{"title":"Message from the Chair of the Technical Programme Committee","authors":"M. Sherif","doi":"10.23919/ITUK53220.2021.9662090","DOIUrl":"https://doi.org/10.23919/ITUK53220.2021.9662090","url":null,"abstract":"The focus of the ITU Kaleidoscope 2021 (K-2021) academic conference is on how the on-going digital transformation is blurring the distinction between our physical and virtual worlds. Technical standards as well as policies and regulation have their respective roles in ensuring that the new immersive experiences benefit humanity at large. Because the Covid-19 pandemic is still affecting communities around the world, for the second year in a row, K-2021 is held online from 6 to 10 December 2021. The conference programme includes eighteen original papers retained from a total of 39 submissions, after a double-blind peer-review process. The video demonstration track, which was introduced in last year's Kaleidoscope, has now four demonstrations. Also, thanks to Laetitia Bochud, Director of Virtual Switzerland, a K-2021 partner, the coffee breaks will include entertainment segments to show how immersive technologies can be used in dance, theatre productions and live performances. The contributors to K-2021 hail from all continents. To accommodate the various time zones over the globe, each day's proceedings are limited to around 3 1/2 hours. The authors of the best papers presented at the conference will share a prize fund of CH 6 000. In addition, young authors of up to 30 years of age presenting accepted papers will receive Young Author Recognition certificates. In my role as the chair of the technical programme committee (TPC), I would like to thank all 56 reviewers, whether members of the TPC or anonymous reviewers, for assisting the steering committee in making the selection. Members of the steering committee were also essential in preparing three keynote sessions and in inviting two papers dealing with the conference's theme. They also helped organise two special sessions on the intersection of the technology with culture, and its effects on the future of museums, art galleries and live performances. I would also like to thank our technical co-sponsors and partners. The K-2021 conference proceedings (as well as those of the previous conferences) can be downloaded free of charge from http://itu-kaleidoscope.org. As customary with the Kaleidoscope conferences, per agreement with the IEEE, all papers accepted and presented at the conference will be included in the IEEE Xplore Digital Library. In addition, selected papers will be considered for publication in a special-feature section of the IEEE Communications Standards Magazine. Finally, I would like to thank the ITU team lead by Alessia Magliarditi and including Emer Windsor, Erica Campilongo and Simiso Dlodlo, as well as Gent Bajrami from the ITU-T Operations and Planning Department, for their unwavering support. It is thanks to their dedication that the Kaleidoscope series of academic conferences improves year after year.","PeriodicalId":423554,"journal":{"name":"2021 ITU Kaleidoscope: Connecting Physical and Virtual Worlds (ITU K)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130861632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards a Robust New Radio Compatible With XR","authors":"Yuzhou Hu, Jiajun Xu, Xiaoying Ma, Mengzhu Chen, H. Tang, Jung Xu","doi":"10.23919/ITUK53220.2021.9662094","DOIUrl":"https://doi.org/10.23919/ITUK53220.2021.9662094","url":null,"abstract":"Extended Reality (XR), an umbrella abbreviation for Cloud Gaming/Augmented Reality/Virtual Reality, is supposed to deliver the commercial outlook for 5G networks. This paper discusses the challenges incurred by this service due to its inherent stringent requirements from a data rate, reliability and latency perspective. To address the challenges, a novel priority-based adaptive preemption/cancellation strategy is proposed to guarantee the new radio quality of service under both the multi-streams XR service and XR in concurrent transmission with other services scenarios. Simulation results demonstrate that a scheduler devised based on the principle of the proposed strategy is quite useful from a capacity perspective. In the meantime, a synthesis of the industrial consideration and vision is provided featuring the ongoing the 3rd Group Partnership Project Release-17 XR study item.","PeriodicalId":423554,"journal":{"name":"2021 ITU Kaleidoscope: Connecting Physical and Virtual Worlds (ITU K)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115805668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abnormal Activity Recognition using Deep Learning in Streaming Video for Indoor Application","authors":"D. Kumar, Srinivasan Ramapriya Sailaja","doi":"10.23919/ITUK53220.2021.9662095","DOIUrl":"https://doi.org/10.23919/ITUK53220.2021.9662095","url":null,"abstract":"Human activity recognition has emerged as a challenging research domain for video analysis. The major issue for abnormal activity recognition in a streaming video is the presence of the large spatio-temporal data along with the constraints of communication networks affecting the quality of received data for analysis. In this paper, we propose a deep learning-based system to identify abnormal human activities using a combination of Skeleton Activity Forecasting (SAF) and a Bi-LSTM network. The generated skeleton joint points of a human subject are used for the pose estimation. The skeleton tracking and regions of interest points are estimated on a streaming video from an IP networked camera. The extracted interest points and their corresponding features are optimized and used to classify them as normal, abnormal or suspicious actions. The proposed system complies with Recommendation ITU-T H.627 “Signalling and protocols for a video surveillance system” and has been experimented and evaluated over benchmarked data sets for the recognition of human actions. The system performance attains a precision of 85.6% and an accuracy of 97.2% in recognizing different actions.","PeriodicalId":423554,"journal":{"name":"2021 ITU Kaleidoscope: Connecting Physical and Virtual Worlds (ITU K)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131529662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Exploring the Essence of Communication to Reach the Heart","authors":"Takeshi Yamada","doi":"10.23919/ITUK53220.2021.9662093","DOIUrl":"https://doi.org/10.23919/ITUK53220.2021.9662093","url":null,"abstract":"With the aim of achieving communication that reaches the heart, researchers at NTT Communication Science Laboratories have been exploring the essence of communication since its founding 30 years ago. They have been creating technologies that approach and exceed human abilities in such fields as media processing and data science. They have also been discovering basic principles that lead to a deeper understanding of humans in fields such as cognitive neuroscience and brain science. This article introduces the laboratories’ recent activities in pursuit of the essence of communication.","PeriodicalId":423554,"journal":{"name":"2021 ITU Kaleidoscope: Connecting Physical and Virtual Worlds (ITU K)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125305675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Strengthen the Security of Cyberspace with Device-Independent Quantum Randomness","authors":"Ming-Han Li, Qiang Zhang","doi":"10.23919/ITUK53220.2021.9662118","DOIUrl":"https://doi.org/10.23919/ITUK53220.2021.9662118","url":null,"abstract":"With the advancement of the information age, the risk of information security keeps increasing. Randomness is the core of network and information system security, and it is the basic support of the entire network trust system. In this paper, we introduce the concept of Device-Independent Quantum Random Number Generator (DIQRNG), which provides randomness with the highest security level. To better integrate with Information and Communications Technology (ICT) systems, we propose the principle and architectural framework of a randomness beacon based on DIQRNG. It is a public service that can be applied in multiple scenarios, such as contract signing and confidential disclosure. Its related application cases are also currently being studied in the ITU QIT4N focus group.","PeriodicalId":423554,"journal":{"name":"2021 ITU Kaleidoscope: Connecting Physical and Virtual Worlds (ITU K)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116896996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}