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Periodic broadcasting has achieved prominent performance in VoD (Video on Demand) service in wired network. However, the development of wireless VoD service still has gone on hard and slowly in comparison to the rapid growth of mobile video service. In this paper, we propose a scalable video streaming method HQOBA (Heterogeneous Quality-Oriented Bandwidth Allocation) to address the problems in wireless...
A video is composed of a set of scenes containing semantics in the video. Since there have been existed user needs to consume scenes with respect to its semantics, scene segmentation has been focused by both industrial and research domains. This paper proposes a novel scene segmentation method. The proposed method is designed to keep information in multiple representations of shots as much as possible...
Effect of adaptive threshold on shot boundary detection performance is analyzed in this paper, where the threshold is used to determine whether a target frame is a shot boundary or not in a broadcasting video content. Adaptive threshold is calculated using input threshold and visual similarities of adjacent frames of a target frame. The experimental results show that application of adaptive threshold...
Various types of multimedia services have become prominent over the last few years leading to difficulty in providing high-quality broadcast multimedia services in certain shadowing regions without resource management in accordance with specific channel adaptation. In order to overcome this difficulty, return channel design has been actively discussed in broadcasting standards for broadcasting systems...
This paper proposes a novel method to construct the content knowledge from blogs. Knowledge graph is constructed with images and keywords extracted from blogs and became the content knowledge by connecting images in the graph to frames in the content. In connecting process, distance with timeline locality matches images and frames based on singular feature for scenes. Then, matching results are re-ranked...
We propose a test pattern generator and test patterns for the purpose of the 4K UHD(Ultra High Definition) video monitor evaluation. The design goal of test pattern is based on the characteristic differences such as resolution, color gamut, and frame rates, between HD display and 4K UHD display. Compared with the previous pattern generators, the proposed one based on PC and Windows OS has advantages...
This paper describes investigation on the effectiveness of the haptic feedback in science education, involving 8th grade middle school students. For that study haptically enhanced presentations of the Coriolis Effect have been created based on MPEG-4 framework allowing creating, transmitting and displaying haptically enhanced multimedia educational contents. A special focus of the work is the comparison...
Recently, broadcasted 3D video content has reached households with the first generation of 3DTV. However, few studies have been done to analyze the Quality of Experience (QoE) perceived by the end-users in this scenario. This paper studies the impact of transmission errors in 3DTV, considering that the video is delivered in side-by-side format over a conventional packet-based network. For this purpose,...
Watching sports, such as tennis and soccer, remains popular for a broad class of consumers. However, audiences might not be able to enjoy their favorite games from a television or PC when they are traveling, so mobile devices are increasingly used for watching sports video. Unfortunately, watching sports on a mobile device is not as simple as watching sports on TV. Bandwidth limitations on wireless...
In this work, the problem of performing multi-modal analysis of audio-visual streams by effectively combining the results of multiple uni-modal analysis techniques is addressed. A non-learning-based approach is proposed to this end, that takes into account the potential variability of the different uni-modal analysis techniques in terms of the decomposition of the audio-visual stream that they adopt,...
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