27,997 research outputs found
Image segmentation evaluation using an integrated framework
In this paper we present a general framework we have developed for running and evaluating automatic image and video segmentation algorithms. This framework was designed to allow effortless integration of existing and forthcoming image segmentation algorithms, and allows researchers to focus more on the development and evaluation of segmentation methods, relying on the framework for encoding/decoding and visualization. We then utilize this framework to automatically evaluate four distinct segmentation algorithms, and present and discuss the results and statistical findings of the experiment
Cyclical Flow: Spatial Synthesis Sound Toy as Multichannel Composition Tool
This paper outlines and discusses an interactive system designed as a playful ‘sound toy’ for spatial composition. Proposed models of composition and design in this context are discussed. The design, functionality and application of the software system is then outlined and summarised. The paper concludes with observations from use, and discussion of future developments
Generating Narrative Spaces from Events History
For a successful distributed teamwork it is vital to provide team-members with awareness on collaborative activities. One way of achieving this is through applying a narrative based approach to construct the events that have taken place on documents and folders in a project workspace, as various members make changes to its content. The research presented in this paper investigates the possibility of exploring the history of activities performed by team members. Past events are aggregated in the form of a three dimensional environment time tunnel, providing the team-members with a generative tool to visualize the project?s events history in various configurations, in order to reveal the usually hidden relationships between separate pieces of events. Furthermore we provide a tool for managing and inspecting the folder?s contents: the DocuDrama Timetunnel. Here we present preliminary findings showing how the visualisation of a sequence of connected actions and happenings using a temporal and spatial narrative based approach may lead to a better understanding of the project-related events history
Reliable Video Streaming over mmWave with Multi Connectivity and Network Coding
The next generation of multimedia applications will require the
telecommunication networks to support a higher bitrate than today, in order to
deliver virtual reality and ultra-high quality video content to the users. Most
of the video content will be accessed from mobile devices, prompting the
provision of very high data rates by next generation (5G) cellular networks. A
possible enabler in this regard is communication at mmWave frequencies, given
the vast amount of available spectrum that can be allocated to mobile users;
however, the harsh propagation environment at such high frequencies makes it
hard to provide a reliable service. This paper presents a reliable video
streaming architecture for mmWave networks, based on multi connectivity and
network coding, and evaluates its performance using a novel combination of the
ns-3 mmWave module, real video traces and the network coding library Kodo. The
results show that it is indeed possible to reliably stream video over cellular
mmWave links, while the combination of multi connectivity and network coding
can support high video quality with low latency.Comment: To be presented at the 2018 IEEE International Conference on
Computing, Networking and Communications (ICNC), March 2018, Maui, Hawaii,
USA (invited paper). 6 pages, 4 figure
Freeform User Interfaces for Graphical Computing
報告番号: 甲15222 ; 学位授与年月日: 2000-03-29 ; 学位の種別: 課程博士 ; 学位の種類: 博士(工学) ; 学位記番号: 博工第4717号 ; 研究科・専攻: 工学系研究科情報工学専
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