## 1 Introduction
With a special device interface layer, it does smoothly support various kinds of Internet of Things (IoT) devices including many kinds of video cameras, sensors, sensor networks, and communication protocols for the UTOPIA infrastructure tier. SOUL has an alias name of SmartUM and was first announced in 2007. UTOPIA and SOUL are outputs of a project by the Smart City Consortium, which was made by the Seoul Metropolitan Government, major Korean universities in Seoul such as University of Seoul, Seoul National University, Korea University, Yonsei University, etc., and other organizations in 2005, used over an eight million US dollar research fund during the first research period (2005-2010), and has had more than two hundred participating researchers. SOUL has been continuously evolving since 2010. Further details of SOUL will be explained in Section 3. With powerful functions and architecture, SOUL has been supporting the following applications as well as the smart surveillance service for UTOPIA. - Smart traffic accident management;  
- Smart fire management;  
- Smart disaster management;  
- Smart real-time air-pollution map service;  
- Smart real-time nose-map service;  
- Smart remote control;  
- Smart water management;  
- Smart and green environment management;  
- Smart building management;  
- Smart apartment management;  
- Smart security management;  
- Smart public service management;* Smart health care service management;
* Smart medical service management;
* Smart rescue service management;
* Smart city infra-structure management;
* Real-time lost child search service;
* Many other smart city service managements. The Cloud-based smart video surveillance with scalable video streaming was implemented in SOUL and became a part of SOUL, therefore it inherits all the capabilities, features, and benefits of SOUL. This paper proposes an all-in-one system of USVS, which includes video surveillance, scalable video streaming, Cloud computing, a middleware platform (SOUL) for a smart city, and a smart city paradigm (UTOPIA), and deals with image processing for object detection with MapReduce. Thus, our work in this paper is novel. We could not find any similar work. Thus, we think this work is unique yet. This paper gives the following contributions:  
1. This paper proposes an all-in-one system of USVS, which includes video surveillance, scalable video streaming, Cloud computing, a middleware platform (SOUL) for smart city, and a smart city paradigm (UTOPIA), and deals with image processing for object detection with MapReduce. The all-in-one system of USVS is unique and novel. This contributes to smart city research. 2. The Cloud-based smart video surveillance with scalable video streaming was implemented in SOUL, thus the middleware of a smart city was expanded to include the Cloud-based smart video surveillance with scalable video streaming. This contributes to the smart city middleware research and smart city research. 3. This paper presents the performance evaluation with our prototype system for USVS, SOUL, and UTOPIA written using Linux Standard Base and Linux Kernel. This paper contributes to the research of performance evaluation by a real measurement in a smart city. This paper is organized as follows. Section 2 explains related works. Section 3 gives an overview of the USVS. Section 4 presents the mechanism of the USVS. Section 5 explains the big video processing using the USVS in detail. Section 6 presents the performance evaluation. Finally, Section 7 concludes our study.