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For augmented reality (AR), computer-generated virtual objects are overlapped on the image of a real world. Since a disturbing real object (e.g, a moving human) on the display of an AR device reduces the immersion to AR experiences, the virtual objects need to be augmented after eliminating the disturbing object. From this motivation, this paper presents mediated reality (MR) photography, where the...
An application framework is proposed in this paper that considers low cost surveillance mechanism and data acquisition in the forest. An application is developed as proof of concept with detailed design that can take advantage of unmanned urban vehicle to be directly configured and controlled in real-time. The advantages are numerous; it can be used for many purposes. For example, it can be used for...
This paper proposes an algorithm to determine the distance between vehicles for a Intelligent Transport System (ITS) using image sensor based visible light communication. Compared to existing algorithms, the proposed algorithm uses two image sensors and thus requires only one LED for distance estimation. Simulations are conducted to verify the performance of the proposed algorithm.
In this paper, we propose the architecture and schemes of optical camera communication (OCC) system for the internet of lights (IoL) comprising an attentive indoor environment in which rolling-shutter cameras (including smartphone cameras) are used to receive data from light sources. Evidently, the challenges of system mainly come from the receiver side because the primary purpose of cameras is to...
Recent smart devices offer technologies that can measure indoor as well as outdoor locations. In the case of outdoor positioning, a global positioning system (GPS) is generally used. There is a limit to the method of using the GPS signal for indoor positioning. A typical indoor positioning method is to use a beacon based on bluetooth low energy (BLE). However, this method has disadvantages that needs...
This paper introduces a novel system for sports motion analysis. The system utilizes wearable sensors and video cameras to detect a sports motion and to provide image sequences of the motion automatically. Deep neural networks were adopted for detection and explicit segmentation of a sports motion into submotions. The proposed system is evaluated by implementing a soccer kick analysis system as an...
Texture reconstruction is the last step of 3D reconstruction pipelines that makes 3D geometry models very impressive and beautiful. Once the 3D model is created through structure-from-motion, multi-view stereo and mesh reconstruction, real image based texture is mapped to the models. But it is not easy to generate high quality texture. There are many difficulties cause problems: the large number of...
In this paper, we propose a system to measure the crowdedness of a specific area using CCTV images. In the proposed system, objects are distinguished by using the Visual Background Extractor (ViBe) algorithm. The background that has not been removed by the ViBe is excluded from the object area using the opening technique. Then, the object area assigned to different weights based on the pixel positions...
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