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The objective of this study is to determine a tracking method using kernelized correlation filter based on object's appearance and motion model used to track multi-object. This system largely consists of 4 modules: motion model, background subtraction, hijacking handling and occlusion handling. Lab colour model is applied to subtract background, and histogram of oriented gradient (HoG) is used to...
We present a novel multi-view video acquisition system using object tracking-based multi-PTZ camera control. Proposed system captures multi-view videos for an object-of-interest by controlling multi-PTZ cameras to focus on it. Control information of each PTZ camera is calculated by homography and a tracked position of the object-of-interest in a top-view image. Moreover, object tracking is performed...
In this paper, we propose a robust multi-object tracking algorithm for acquiring object oriented multi-angle videos, which takes advantages of two different tracking techniques represented by subdivided color histogram based tracking and labeling based tracking. Object models based on color histograms are further subdivided to differentiate similar color regions. Another tracking technique utilizes...
In this paper we propose the playback system for mashup based on mobile device in a sporting game. We designed the user experience for mobile environment: it was implemented so that a viewer can see the event segment video and the mashup information such as the additional information associated with it in the sporting game. Besides, it was also developed that a viewer can watch the main broadcasting...
In this paper we propose a system for interactive broadcasting service based on a player of interest in basketball game. This service is mainly composed of three sub services. The first one is to view a video stream from each camera on a basketball player of interest captured from multi-cameras. The second one is to watch videos of various event segments according to the type of event game. The last...
In this paper, we propose the active queue management mechanism (Active-WRED) for guaranteeing the quality of the high priority service class (VoIP or IPTV) in the multi-class traffic service environment. In the congestion situation, this mechanism increases the drop probability of the low priority traffic and reduces the drop probability of the high priority traffic; therefore it can guarantee the...
This paper proposes a new mobility management (MM) scheme, using Label Switched Path (LSP) of Multi Protocol Label Switching (MPLS) for seamless service in IP-based Next Generation Network. The proposed scheme delivers signaling messages by using L2.5 switching method based on MPLS LSP. So, it can overcome problems from existing schemes, such as PMIP or MIP. We analyze each scheme numerically and...
We present a novel multi-view video replay service system using multi-PTZ cameras. Proposed system firstly captures multi-view videos for an object of interest with converged multi-cameras and then synthesizes intermediate views by grid mesh-based warping at a certain time instant. Next, captured multi-camera videos and synthesized intermediate view videos are combined to generate a multi-view replay...
As the cloud-based datacenter with SDN (Software Defined Network) enabled has been deployed as a real service platform, NFV (Network Function Virtualization) attracts great attention from many researchers. NFV virtualizes network equipment to implement elastic network service in the cloud. Specifically, in this paper, we propose screen acceleration VNF (Virtual Network Function) scheme that makes...
In light of their rapid growth, there is a pressing need to develop analysis and decision solutions whether or not. However, most of protections are limited understanding of these mobile malware and sophisticated analyzing. In this paper, we propose a method of analyzing and deciding malware on the basis of similarity with existing malware families on the popular platform, Android. We focus on the...
In light of the rapid growth of smartphones, there are unrelenting malicious attacks on smartphones from voice phishing to mobile malwares. However, our protection against the various types of malicious attacks is much slower than the rapid evolution of the attacks since the analysis of the malicious attacks on smartphones usually takes much more time and efforts than hackers evolve their attack methods...
Digital signage is a Digital Information Display (DID) which expresses traditional advertisements of outdoor billboards by digital. In early digital signage was limited to provide contents consists texts, images and videos, but now it is combined with the network so contents can be installed, operated and replaced from a distance. Furthermore interaction with users and with user's mobile terminals...
Recent information technologies have produced a lot of user- participating community services, or Social Network Services (SNSs), and have received much attention as a pipeline of user behavioral information. This paper explains the conceptualization of a user interest profile (UIP) through a topic hierarchy, which learns topics and keywords from a domain data stream. The conceptualization enriches...
As multi devices like smart phones and tablets are widely used, people want to use these devices when they need some collaboration with expecting their services to be continued across platforms. Web platforms provide common functions among multi-devices dealing with platform dependent features. To support collaboration using smart devices, transferring and sharing of Web contents over Web browsers...
In this paper, we propose an optimal viewable area searching method for supporting user mobility using Received Signal Strength Indicator (RSSI) values. In order to search an optimal viewable area, the home multimedia system determines a viewable area of each terminal based on viewable angle and viewable distance. We implement an optimal viewable area searching system which includes the mobile station,...
In this paper, we propose QoE assessment model for video streaming service such as IPTV and VoD using QoS parameters in wired-wireless network. Existing perceptual quality assessment models are unsuitable for experienced quality assessment of a streaming service which passed through the IP-based network because they only take account of the characteristic of used codec and bit rate. However, QoS parameters...
As IEEE 802.11 wireless local area network (WLAN) devices currently have gained wide popularity, demands on quality of service (QoS) capability have increased as well. Although IEEE 802.11e is proposed for the support of QoS by traffic and service differentiation, it still has weakness on the adapting the multimedia services which has the traffic characteristic of variable bit rate (VBR). In this...
This paper presents a new television (TV) service model, social TV service, which integrates social networking context and Internet protocol television (IPTV) to create a new type of sharable, interactive and participative TV service. With the social TV service, people can share their opinions and feelings with friends and experiences enriched TV services, such as personalized recommendation and target...
In this paper, we propose a high-speed packet transmission mechanism using source switching label information. In the proposed mechanism, switches within core network can simply switch packets to next port using source switching label information since ingress nodes transmit packets inserting the end-to-end path information in label header. Unlike MPLS (Multiprotocol Label Switching), it is unnecessary...
In this paper, we propose L3 handover scheme using SIP messages to minimize handover latency and packet loss in a MN with single interface. Packet loss and handover latency arise from L2/L3 association delay and IP configuration delay when the MN transfers internet connectivity from the serving access router to the target access router using legacy terminal mobility mechanisms. Therefore, seamless...
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