Now showing items 1-15 of 15

    • Cumulative Quality Modeling for HTTP Adaptive Streaming 

      Pham, Ngoc Nam; Tran, Huyen T. T.; Truong, Cong Thang; HOßFELD, TOBIAS; SEUFERT, MICHAEL (2021-04)
      HTTP Adaptive Streaming has become the de facto choice for multimedia delivery. However, the quality of adaptive video streaming may fluctuate strongly during a session due to throughput fluctuations. So, it is important ...
    • An Effective Foveated 360◦ Image Assessment Based on Graph Convolution Network 

      Truong, Thu Huong; Do, Thu Ha; Tran, Huyen T. T.; Ngo, Duc Viet; Bui, Duy Tien; Nguyen, Huu Thanh; Truong, Cong Thang; Pham, Ngoc Nam (2022-09-04)
      Virtual reality (VR) has been adopted in various fields such as entertainment, education, healthcare, and the military, due to its ability to provide an immersive experience to users. However, 360◦ images, one of the main ...
    • An Efficient QoE-Aware HTTP Adaptive Streaming over Software Defined Networking 

      Nam, Pham Ngoc (2020-05)
      Due to the increase in video streaming traffic over the Internet, more innovative methods are in demand for improving both Quality of Experience (QoE) of users and Quality of Service (QoS) of providers. In recent years, ...
    • An LSTM-based Approach for Overall Quality Prediction in HTTP Adaptive Streaming 

      Nam, Pham Ngoc; Tran, T. T. Huyen; Nguyen, D. Duong; Truong, Cong Thang; Nguyen, V. Duc (2019-04)
      HTTP Adaptive Streaming (HAS) has become a popular solution for multimedia delivery nowadays. In HAS, video quality is generally varying in each streaming session. Therefore, a key question in HTTP Adaptive Streaming is ...
    • Network-aware Prefetching Method for Short-Form Video Streaming 

      Nguyen, Duc; Nguyen, Phong; Nguyen, Vu Long; Pham, Ngoc Nam; Truong, Thu Huong (2022-09-07)
      Recent years have witnessed the rising popularity of short-form video platforms such as TikTok. Unlike conventional videos, short-form videos are significantly shorter, and users frequently switch between content. Therefore, ...
    • Overall quality prediction for HTTP adaptive streaming using LSTM network 

      Pham, Ngoc Nam; Truong, Cong Thang; Tran, T. T. Huyen; Nguyen, V. Duc (2021-08)
      HTTP Adaptive Streaming (HAS) has become a widely adopted method for delivering multimedia content. However, the variability in network bandwidth often results in fluctuating video quality during streaming, posing a ...
    • QoE Models for Adaptive Streaming: A Comprehensive Evaluation 

      Nguyen, Duc; Pham, Ngoc Nam; Truong, Cong Thang (2022-05-13)
      Adaptive streaming has become a key technology for various multimedia services, such as online learning, mobile streaming, Internet TV, etc. However, because of throughput fluctuations, video quality may be dramatically ...
    • QoE-aware video streaming over HTTP and software-defined networking 

      Pham, Hong Thinh; Nguyen, Thanh Dat; Pham, Ngoc Nam; Nguyen, Huu Thanh; Truong, Thu Huong (2019)
      The exponential growth in video streaming traffic over the Internet has created a demand for innovative methods to enhance both Quality of Experience (QoE) for users and Quality of Service (QoS) for providers. HTTP Adaptive ...
    • Retina-based quality assessment of tile-coded 360-degree videos 

      Nguyen, Viet Hung; Pham, Ngoc Nam; Truong, Cong Thang; Bui, Duy Tien; Nguyen, Huu Thanh; Truong, Thu Huong (2022-06-21)
      Nowadays, omnidirectional content, which delivers 360-degree views of scenes, is a significant aspect of Virtual Reality systems. While 360 video requires a lot of bandwidth, users only see visible tiles, therefore a large ...
    • Scalable 360 Video Streaming using HTTP/2 

      Nguyen, Duc V.; Hoang, Van Trung; Hoang, Le Dieu Huong; Truong, Thu Huong; Pham, Ngoc Nam; Truong, Cong Thang (2019-07)
      360-degree video is the primary content type in Virtual Reality, offering users an immersive viewing experience. This paper introduces a novel adaptation method for streaming 360-degree video over HTTP/2, aimed at enhancing ...
    • SDN – based Dynamic Bandwidth Allocation for Multiple Video-on-Demand Players over HTTP 

      Pham, Ngoc Nam; Pham, Hong Thinh; Nguyen, Huu Thinh; Truong, Thu Huong (2019)
      Nowadays, HTTP adaptive streaming (HAS) has become the standard for video streaming over multimedia networks. However, HAS alone cannot ensure a seamless viewing experience. The adaptation of HAS in network management faces ...
    • A Subjective Study on User Perception Aspects in Virtual Reality 

      Tran, T. T. Huyen; Pham, Ngoc Nam; Pham, T. Cuong; Jung, Yong Ju; Truong, Cong Thang (2019-08-16)
      Three hundred and sixty degree video is becoming more and more popular on the Internet. By using a Head-Mounted Display, 360-degree video can render a Virtual Reality (VR) environment. However, it is still a big challenge ...
    • The title of the paper is: **A Quantitative Analysis of the Effect of Human Detection and Segmentation Quality in Person Re-identification Performance** 

      Nguyen, Thuy Binh; Nguyen, Hong Quan; Le, Thi Lan; Pham, Ngoc Nam; Pham, Thi Thanh Thuy (2019)
      Person re-identification, a problem of person identity association across camera views at different locations and times, is the second step in two-steps system for automatic video surveillance: person detection, tracking ...
    • Towards an Overall QoE Model for 360-Degree Video 

      Tran, Huyen T. T.; Pham, Ngoc Nam; Truong, Cong Thang (2021-01-13)
      Although 360-degree video is becoming more and more popular on the Internet, understanding of Quality of Experience (QoE) of 360-degree video is still limited. In this paper, we aim to investigate for the first time the ...
    • A Weighted Viewport Quality Metric for Omnidirectional Images 

      Tran, Huyen T. T.; Hoang, Trang H.; Minh, Phu N.; Pham, Nam N.; Truong, Thang C. (2020-01-01)
      Thanks to the ability to bring immersive experiences to users, Virtual Reality (VR) technologies have been gaining popularity in recent years. A key component in VR systems is omnidirectional content, which can provide ...

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