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User Generated Videos are contents created by heterogeneous users around an event. Each user films the event with his point of view, and according to his limitations. In this scenario, it is impossible to guarantee that all the videos will be stable, focused on a point of the event or other characteristics that turn the automatic video synchronization process possible. Focused on this scenario we...
Wearable devices, such as LED clothing, have attracted significant interest recently. The attachment of LEDs to clothing increases the aesthetic effects of clothing. In this paper, we describe the convergence of communications and fashion design by applying visual-MIMO (multiple-input multiple-output) to wearable devices. We propose a variable intensity-on-off keying (VI-OOK) modulation scheme for...
We present a camera array based plenoptic image acquisition system and re-focus algorithms for the plenoptic image data acquired using the system. In order to get time-synchronized images with a high resolution of up to 1920 by 1080, we integrated 25 industrial cameras with an external exposure synchronization devices. By using industrial cameras with precise time synchronization functionality, we...
This paper proposes Alamouti-type space time (ST) coding to visible light communication (VLC) using light emitting diodes (LEDs) and image sensor-based direct detection with a high-speed camera. Although multiple LEDs of an array are used as transmitters to communicate to individual pixel elements of an image sensor which act as multiple receive elements, the received signal is essentially the image...
In this paper, we focus on a road-to-vehicle visible light communication (VLC) system using LED traffic lights. In this system, an LED traffic light consists of a 2-dimensional LED array (2D LED array), and cars are equipped with high-speed 2-dimensional cameras (2D image sensors). An important issue of this system is frame loss. Sometimes, 2D image sensor in a car fails to get a frame. So as to mitigate...
In this paper, the road information collection systems and processing algorithms of video signal was researched based on vision sensor, the processor of Smart car used MC9S12XS128, the hardware of Sampling system using OV7620 digital camera; The key of software part is the turn of double-array storage and processing technology, which made the Acquisition system has higher efficiency, more in line...
Camera-arrays have become popular in many computer vision and computer graphics applications. Among all preprocessing steps, an efficient method to calibrate a large number of cameras is very much desired. The required calibration includes both the geometric and photometric calibration, which are the most common and also well studied for single camera. However, few existing efforts are devoted to...
In this article the external digital interface specially designed for thermographic camera built in Military University of Technology is described. The aim of article is to illustrate challenges encountered during design process of thermal vision camera. This article explains main requirements for interface to transfer Infra-Red digital data and describes the solution which we elaborated based on...
Multiview video contains more views of scene providing the view-navigating and interactive ability which pull more attention in recent years. 3D and free viewpoint video was investigated and appeared in MPEG standard called 3DAV. The requirements of multiview video capture system are investigated, and we built a simple capture system regarded as the more important module of whole multiview video system...
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