Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
To a large extend, collaboration and communication consists of the understanding of extrinsic activity. This task is especially hard to achieve in remote settings or also locally when people cannot take part in meetings. In this paper we are addressing the question, if understanding of the essential decisions, facts, and processes can be achieved by just consuming collaboration data afterwards. Therefore,...
The enclosed study provides analysis and describes experiences from teaching the subject “Audio and video processing” conducted at the Teachers' Academy at the Juraj Dobrila University of Pula. During the first year of the collegium, audio processing was performed using the application “Audacity”, and video by Adobe Premier CS4. Processing of the materials was done using examples assigned by a teacher...
As contribution the research study as outcome developed a software application and programmed several new recognition gestures and presented a set of tools supporting the spectrum of software engineering natural user interfaces to be used in University promotion and marketing. This research study tries to foster several contributions. Firstly, this system is built on basis of separate library used...
In Thailand University, checking student attendance is one of the important issues for universities, because many universities evaluate students' attendance and while giving the final grade, professors consider their total number of appearances on classes during the whole semester. This brings to the idea of having some tool to control students' attendance. Some universities prefer to use paper sheet...
In this paper, we present a computer assisted creativity tool based on natural interfaces that allows the creation of distributed collaborative workspaces by merging the real and digital worlds in a tabletop setting. These workspaces are used to promote the exchange and sharing of graphical information by simulating a physical workbench where designers traditionally work with paper sketches, images,...
This paper discusses the experiment of single human tracking using multi camera. The contribution of this paper is on the use of Kalman filter as an object tracker combined with FOV lines method to distinguish the source of camera and to label the passing of moving human as a single object to track. In this paper, the experiment is limited only to track human using three still cameras with a static...
Google glass is a hands-free, head-mounted intelligent device that can be worn as a wearable computing eyewear. This work discusses its potential in education by proposing an application, the Glassist, aiming at helping teachers management tasks. The application allows teachers to create individual portfolios for students, manage their information and share it with peers. The tool uses Augmented Reality...
In this paper we present a novel, condition-invariant place recognition algorithm inspired by recent discoveries in human visual neuroscience. The algorithm combines intolerant but fast low resolution whole image matching with highly tolerant, sub-image patch matching processes. The approach does not require prior training and works on single images, alleviating the need for either a velocity signal...
HDR synthesis using the minimal number of source images is crucial for real-time applications. This paper identifies the color distortion problem associated with the minimum of two source images, and proposes a solution using the virtual frame composed in the pixel domain. Experimental results demonstrate satisfactory results.
Camera pose estimation from image is one of the key issues in computer vision. Most existing approaches need embed a visual mark in the object's texture for camera pose estimation. However, a visual mark spoils the unity of the image. This paper introduces a novel pose estimation method using the spatial frequency domain analysis. In this method, the high frequency marker that is hard to distinguish...
A novel scheme for object localization and tracking under family environment is presented based on fusion of multiple sensors, which include two laser sensors and camera sensors. The two laser sensors and two cameras are used to locate the object separately, and multiple sensors probability data association fusion algorithm is used to track the objects. Firstly, object detection is realized by laser...
A method to autonomously control multiple environmental cameras, which are currently fixed, for providing more adaptive visual information suited to the work situation for advanced unmanned construction is proposed. Situations in which the yaw, pitch, and zoom of cameras should be controlled were analyzed and imaging objects including the machine, manipulator, and end-point and imaging modes including...
In this paper, a new method is proposed to provide a reliable and accurate algorithm to search and precisely find the center of a reference image in a set of video frames. By implementing algorithms such as SIFT and PCA-SIFT, some matched points are obtained. Some of these points are accurate, some of them are not strictly accurate and others are incorrect. As a result, registration process may be...
An algorithm to insert augmented reality in sports scenes is presented. The goal is to augment an image to the scene so that it appears as a part of the original scene. The proposed algorithm uses the homography relationship between the image coordinates and the world coordinates, then utilizes the Sift algorithm to find the corresponding points between two frames. By using the homography map we can...
This paper describes a method for estimating the location of an IP-connected camera (a web cam) by analyzing a sequence of images obtained from the camera. First, we classify each image as Day/Night using the mean luminance of the sky region. From the Day/Night images, we estimate the sunrise/set, the length of the day, and local noon. Finally, the geographical location (latitude and longitude) of...
Cloud detection is an important subject for both present observatories and observatory site selection. Nowadays cloud detection using all sky cameras is the most promising method by the help of sophisticated cameras. In this work we propose a cloudiness analysis methods which uses all sky camera images. Daytime and night time imgaes were classified according to their present time duration, and different...
Crowd counting, which count or accurately estimate the number of human beings within a region, is critical in many applications, such as guided tour, crowd control and marketing research and analysis. A crowd counting solution should be scalable and be minimally intrusive (i.e., device-free) to users. Image-based solutions are device-free, but cannot work well in a dim or dark environment. Non-image...
In this paper we will describe a positioning system based on synchronized IR light. Each node will be assigned a timeslot where they will send out an IR light. There is an IR camera that is also synchronized to the timeslots that will detect the position of each node and the ID that corresponds to the timeslot. To synchronize the clock of all nodes an IR flashlight is sent out that is detected by...
In this paper, A method giving consideration to both acquiring interrelated clear underwater-image and realizing fully automatic stitching for that is proposed. The rapidity and precision of stitching for multi-image, especially the underwater-image is influenced by the low resolution and fuzzy target etc. In allusion to influencing factors, a new and reliable approach effective in above two problems...
The world's ageing population and prevalence of chronic diseases have led to escalating healthcare costs and heavy social-economical burden. In response to this, many parties have proposed personalized telehealth and wearable health monitoring systems as cost-effective solutions for geriatric and chronic care. The conventionally monitored physiologic signals include electrocardiogram (ECG), photoplethysmogram...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.