Providing a low latency user experience in a high latency application

Conner, Brook; Holden, Loring

doi:10.1145/253284.253305

Cited by 17 publications

(11 citation statements)

References 10 publications

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“…Therefore, concurrency control is required to maintain synchronization among replicas. There have been approaches that allow users to understand the limitation of latency (Conner & Holden, 1997;Fraser et al, 2000). However, they do not solve the problem systematically, but provide methods to let users know about current state and increase the time window to achieve the lock.…”

Section: Concurrency Controlmentioning

confidence: 99%

ATLAS: A Scalable Network Framework for Distributed Virtual Environments

Lee¹,

Lim²,

Han³

et al. 2007

Presence: Teleoperators and Virtual Environments

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A distributed virtual environment (DVE) is a software system that allows users in a network to interact with each other by sharing a common view of their states. As users are geographically distributed over large networks like the internet and the number of users increases, scalability is a key aspect to consider for real-time interaction. Various solutions have been proposed to improve the scalability in DVE systems but they are either focused on only specific aspects or customized to a target application. In this paper, we classify the approaches for improving scalability of DVE into five categories: communication architecture, interest management, concurrency control, data replication, and load distribution. We then propose a scalable network framework for DVEs, ATLAS. Incorporated with our various scalable schemes, ATLAS meets the scalability of a system as a whole. The integration experiences of ATLAS with several virtual reality systems ensure the versatility of the proposed solution.

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Section: Concurrency Controlmentioning

confidence: 99%

ATLAS: A Scalable Network Framework for Distributed Virtual Environments

Lee¹,

Lim²,

Han³

et al. 2007

Presence: Teleoperators and Virtual Environments

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“…However, filtering will introduce lags, which reduces the system responsiveness [4], potentially causing lower satisfaction and poor productivity among users [42]. For instance, in virtual reality, high latency can induce unpleasant user experience [5]. Besides, to minimize both jitter and lag with a filter in the Kinect system is challenging.…”

Section: Introductionmentioning

confidence: 99%

Position stabilisation and lag reduction with Gaussian processes in sensor fusion system for user performance improvement

Feng

Murray-Smith

Ramsay

2016

Int. J. Mach. Learn. & Cyber.

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In this paper we present a novel Gaussian Process (GP) prior model-based sensor fusion approach to dealing with position uncertainty and lag in a system composed of an external position sensing device (Kinect) and inertial sensors embedded in a mobile device for user performance improvement. To test the approach, we conducted two experiments: (1) GPs sensor fusion simulation. Experimental results show that the novel GP sensor fusion helps improve the accuracy of position estimation, and reduce the lag (0.11 s). (2) User study on a trajectory-based target acquisition task in a spatially aware display application. We implemented the real-time sensor fusion system by augmenting the Kinect with a Nokia N9. In the trajectory-based interaction experiment, each user performed target selection tasks following a trajectory in (a) the Kinect system and (b) the sensor fusion system. In comparison with the Kinect time-delay system, our system enables the user to perform the task easier and faster. The MSE of target selection was reduced by 38.3 % and the average task completion time was reduced by 26.7 %.

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“…Although the interface paradigm probably improves utility by providing some feedback similar to progress indicators [19], the mechanism is tightly coupled to the network property [13]. A more adequate interface design was adopted in [9], which investigated the use of visual cues to provide information regarding the impact of network latency on lock ownership acquisition of objects in the VE. The approach consisted of allowing people to manipulate replicas of the original object until ownership resolution was achieved.…”

Section: Network Awarenessmentioning

confidence: 99%

Building virtual environment systems (and games)with user network awareness

Oliveira

Proceedings Theory and Practice of Computer Graphics, 2004.

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The current development approach with networked applications is to isolate the user from the state of the network. With Virtual Environment systems and online games, this design principle seriously hampers the utility of the application for the users, who associate most disruptions to network problems.The Perceptual Network Metaphors (PNM) is a novel approach to handle the negative impact of degraded network performance on people's experience with online applications of real-time interaction. Contrary to hiding the impact of the network from the participants, the application monitors the state of the network and integrates the information in the display in a seamless fashion.The paper presents the PNM conceptual framework and an early prototype.

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Providing a low latency user experience in a high latency application

Cited by 17 publications

References 10 publications

ATLAS: A Scalable Network Framework for Distributed Virtual Environments

ATLAS: A Scalable Network Framework for Distributed Virtual Environments

Position stabilisation and lag reduction with Gaussian processes in sensor fusion system for user performance improvement

Building virtual environment systems (and games)with user network awareness

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