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Presented model expands the bi-directional interface for human-computer interaction. It broadens the communication channel from a man towards a computer. This is achieved by using a digital camera devices in the HCI interface and the use of novel (taken from the literature) image analysis. Proposed interface use the full bandwidth video channel, thereby increasing the interface adaptability skills...
In this work we present our work towards the development of an ultra-fast power-based interrogation platform for its use with photonic bandgap (PBG) sensing structures. These structures are designed to have a characteristic spectral feature (a PBG edge), which will be shifted when a change of the refractive index is produced on their upper cladding. The interrogation is simply made using a filtered...
Many advanced sensors are capable of producing extremely large and continuous data streams. Hyperspectral imagers, microphones, high-resolution cameras, and 3D scanning devices can easily generate gigabytes of data per day, making it impractical for many wireless sensor platforms to stream all collected data to the cloud for analysis. Furthermore, in some sensor deployments, privacy concerns may restrict...
The paper discusses the design and implementation of a low-cost tool for analysis and design of applications involving video based networked interaction or teleoperation, such as remotely operated devices and collaborative environments. The tool is intended for providing an accurate measure of the video lag involved in the encoding and streaming video over packet networks, and for assessing the impact...
We present a complete, open-source framework for rapid experimentation of visual sensor network (VSN) solutions. From the software point of view, we base our architecture on open-source and widely known C++ libraries to provide the basic image processing and networking primitives. The resulting system can be leveraged to create different types of VSNs, characterized by the presence of multiple cameras,...
In this paper, we propose a hardware compatible queue-based image segmentation algorithm for refining initial depth maps obtained from light field cameras. In the algorithm, an array is created to record the ranges of positions and intensities of possible segments, which make following segment merging steps much more efficient. An ASIC chip based on the proposed algorithm with a plane fitting calculator...
A suite of complementary survey tools aimed at producing 1-cm resolution bathymetric models co-registered with 2-mm pixel color photography has been assembled. The design goal is to produce quantitative documentation of both geological and biological features that will allow change over time to be assessed at vertical and lateral scales approaching one centimeter. The current suite of tools combines...
This paper describes an equipment setup and motion control strategy for automated visual mapping of steep underwater walls using a Remotely Operated Vehicle (ROV) equipped with a horizontally facing DVL to provide vehicle velocity and distance measurements relative to the underwater wall. The still images recorded by the stereo cameras of the ROV are post-processed into a 3D photogrammetry model using...
In this paper the system for tracking of a moving speaker is reported. The system utilizes audio visual information acquired from a camera and microphones. Using the camera a face of a speaker is detected. Two pairs of microphones allow for estimation of direction of sound arrival using general cross-correlation method. The preliminary results of experiments are described.
The Ocean Observatories Initiative's (OOI) Cabled Array (CA) is delivering high-definition video data since August 2015 via fiber optic cable from a statically positioned SubC 1Cam HD (CAMHD) video camera, deployed at the Mushroom hydrothermal vent in the Axial Seamount Hydrothermal Expeditions (ASHES) Field off the coast of Oregon (lat 45° 56.0186′N, long 130° 00.8185′W, depth 1,542 m). Over 20 TB...
In the paper, we describe the extensions of the 3D-HEVC compression technology aimed at improved compression efficiency for multiview sequences acquired from arbitrarily located cameras. Our proposal refines the inter-view prediction by replacing the horizontal shifts with the true mapping in the 3D space. This implies changes in several coding tools, which we describe in details. The paper also reports...
This article studies the smoke and exhaust detection system that has been developed for monitoring exhaust gases to enforce environmental laws and regulations. In many highly populated countries the HSU (Hart ridge Smoke Unit) grade is used to impose penalties. In many cases, HSU values over 40 … 50 are leading to legal actions.
Automated manufacturing systems are becoming increasingly flexible in order to support a growing number of different products and product variations, as well as shortening lot sizes and product life cycles. Many manufacturing resource are already multi-purpose. But they are integrated in an automation infrastructure that may require significant effort to adapt. In this contribution, we present a system...
The availability of hardware devices, applications and external connectivity in our computers and smartphones opens a wide range of opportunities for developing intelligent systems. People with some kind of motor disability can take advantage of such systems with minimal cost, as there are diverse hardware components already available in standard consumer products. Research reported in this document...
The paper presents a laboratory Wind Turbine System (WTS) which is added to existing Hybrid Power System (HPS) along with other main components like Solar Panel, Battery System, Solar Charge controller and Inverter. The WTS is operated with a Motor along with integrated Frequency converter. The complete system is designed to be monitored and controlled over internet from remote location under the...
Incongruity between emotional experience and its outwardly expression is one of the prominent symptoms in schizophrenia. Though widely reported and used in clinical evaluation, this symptom is inadequately defined in the literature and may be confused with mere affect flattening. In this study we used structured-light depth camera and dedicated software to automatically measure facial activity of...
The rapid development of Internet of Things and the current capabilities of high performance embedded systems have made them more attractive for the replacement of human personnel in hazardous or tedious duties. One such application is for guarding certain areas, such as the entrance of a warehouse for example. The aim of this work is to design an autonomous embedded security system for surveillance...
Many painting software is available in the software industry. Each of them has its own pros and cons. One of the main disadvantages of these painting software is the need of accurate pointing devices. Here we introduce the Smart Paint, which is a gesture based painting software. It uses the hand movements for drawing. User doesn't need an external hardware pointing device to draw. Instead the different...
Given a series of overlapped images, it is possible to reconstruct camera position and orientation, as well as 3D coordinates of object in the images. Such method is known as Structure from Motion (SfM), which is currently implemented in various commercial and open source software. The first software commonly don't provide Sfm algorithm. While the latter software are commonly developed partially....
The study of historical monument needs a great care especially for the old object. Along with current technologies, allowing the object studied scanned in three dimensions. To make the objective achieved, the digital form of objects studied has almost become mandatory for simplicity of study and also variety of analysis. For various scale of objects that present everywhere, hardware and software equipment...
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