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In this paper, we introduce a new hardware platform that mimics a compound eye of an insect and propose an algorithm to detect objects using it. The compound eye camera has a wide viewing angle and simulates a number of single eyes on its hemisphere. Each single eye is an elementary unit to acquire visual inputs. Visual information from single eyes is hierarchically merged to estimate objectness....
Vision is a potent source of information, not just for humans, but for robots as well. Processing visual information is a computationally expensive task, one that is often difficult to accomplish in real-time on embedded hardware. In the broad field of visual research exists egomotion estimation, the process of determining self-motion from optical flow. Here we show a technological adaptation and...
Stereo matching systems that generate dense, accurate, robust and real-time disparity maps are quite attractive for a variety of applications. Most of the existing stereo matching systems that fulfill to all of these requirements adopt the Semi-Global Matching (SOM) technique. This work proposes a scalable architecture based on a systolic array, fully pipeline. The design builds on a combination of...
Mixed Reality aims at combining virtual reality with the user's surrounding real environment in a way that they form one, coherent reality. A coherent visual quality is of utmost importance, expressed in measures of e.g. resolution, framerate, and latency for both the real and the virtual domains. For years, researchers have focused on maximizing the quality of the virtual visualization mimicking...
Cameras and other sensors are increasingly deployed for private space monitoring applications such as home monitoring, assisted/enhanced living and child monitoring. Since these cameras capture highly sensitive information and transfer it over public communication infrastructures, security and privacy is a major concern. This work presents a secure camera device along with a secure data delivery and...
The Carleton University Simulator Project (CUSP) is developing a novel flight simulator that decouples typical translational motions from unlimited rotations about any axis. The new CUSP simulator, Atlas, consists of an orientable sphere, housing the cockpit, mounted on a motion platform. Atlas is not bound by the typical limitations in roll, pitch, and yaw of traditional flight simulators. This paper...
Cameras are the defacto sensor. The growing demand for real-time and low-power computer vision, coupled with trends towards high-efficiency heterogeneous systems, has given rise to a wide range of image processing acceleration techniques at the camera node and in the cloud. In this paper, we characterize two novel camera systems that use acceleration techniques to push the extremes of energy and performance...
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...
In this paper we present a scalable multi-view video streaming system with client-side view interpolation. Most parts of the system have been shown to be able to perform in real-time, but never as a complete system. Even though our algorithms are not yet highly optimized, we show that running a complete multi-view streaming system video on consumer hardware is possible today. Since multi-view coding...
Simultaneous Localization and Mapping or SLAM, is a family of algorithms that solve the problem of estimating an observer's position in an unknown environment while generating a map of that environment. SLAM algorithms that produce high quality dense maps require powerful hardware platforms. In the simultaneous solution of these two problems, Localization, also known as Tracking, is the one that is...
Three dimensional (3D) vision applications have drawn more attention nowadays and many products are entering the mass market. View interpolation is a crucial step to generate intermediate viewpoints from reference images. However, it is still challenging to achieve good performance in both processing speed and image quality for various 3D applications. In this paper, a hardware-compatible view interpolation...
The availability of affordable Micro Aerial Vehicles (MAVs) opens up a whole new field of civil applications. We present an Infrastructure for Compact Aerial Robots Under Supervision (ICARUS) that realizes a scalable low-cost testbed for research in the area of MAVs starting at about $100. It combines hardware and software for tracking and computer- based control of multiple quadrotors. In combination...
Intraoperative thermographic imaging, associated with time-resolved data analysis, is used to identify and visualise functional areas and pathological tissue in brain surgery. In this contribution we propose a hardware-software system for real-time pre-processing, fusion, and analysis of concurrent infrared and whitelight recordings. As a proof-of-concept, a digital temporal filter is applied to the...
Laser triangulation applications are commonly used for industrial quality control. Such algorithms require real-time systems often made of a computing unit close to the image sensor through a short and fast link. Choosing a camera with integrated Field Programmable Gate Array (FPGA) as the computing unit can provide high pipeline and parallel computing adapted to process image in real-time. Moreover,...
In recent time devices like Google Glass and Oculus Rift gained a lot of public attention. So the field of Virtual and Augmented Reality has become a more and more attractive field of study. Optical Stereo See-Through Head Worn Displays (OST-HWD or OST-HMD) can be used for Augmented Reality, but have to be calibrated. This means, that one has to find a configuration, that aligns the image shown on...
Classroom Response Systems (CRS), also known as “clickers”, facilitate peer instruction (which leads to improved student learning) and allow instructors to evaluate responses of all students to questions in near real-time. Most proposed CRS are unsuitable for large-scale adoption in developing countries either because they require expensive supporting infrastructure (e.g., Wi-Fi), or because they...
Wireless Multimedia Sensor Networks (WMSN) are one of the emerging paradigms of the Internet of Things (IoT) that are used to retrieve content including scalar data, video and audio streams and still images from the physical environment. In contrast to scalar sensor (such as temperature and humidity sensor) nodes, multimedia sensor nodes capture high volumes of data and perform far more complex tasks...
This paper details a complete hardware and software system designed to aid in the visual inspection and structural condition monitoring of railway tunnels. The system consists of two main components; an image acquisition system for data collection and an image processing software package for data analysis. The image acquisition system consists of an array of cameras with overlapping fields of view,...
The existing AR indoor registration technologies based on hardware often have the disadvantage of low registration accuracy. To solve the problem, a new indoor AR registration technology based on iBeacon is proposed in this paper. Firstly, the coordinates of the phone are calculated based on the data received by iBeacons. Secondly, the 3D directions of the phone are obtained based on the acceleration...
Recent advances in technology and rapid growth of consumer electronics have made tremendous amount of multimedia information available to the general population. Browsing through large collections of consumer videos and manually creating summaries can be tedious. Automatic summarization techniques will give the user an easy way to look up important content of a collection of media and to browse media...
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