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In this paper, we describe an efficient method for creating mosaics from collections of videos. Our method is based on a utility maximization formulation which we optimize greedily. We employ a function for quickly estimating mosaics without computing image features that allows us to efficiently take greedy steps while still achieving user definable goals for mosaic quality. Indeed, we demonstrate...
Indoor positioning technology has been a goal of ubiquitous computing research. In this paper, we show the feasibility of detecting fluorescent light based on the camera images received from a smart phone. We present a robust and real time approach to fluorescent light detection in indoor environments. It is based on taking a ceiling image by Smartphone image sensor, filtering using selective oriented...
The image mosaicing is one of the most widely used techniques for semi-automated or automated recovery of original documents from ripped up documents. Reconstruction of hand torn or ripped-up paper documents is a challenging job in forensic, investigation science, historical artifact reconstruction. Creation of document mosaic images from some torn piece views is a powerful means of getting a larger...
Ghost Imaging uses a series of projected illumination patterns and a measurement of the total backscattered light to deduce the image of an object under illumination. The shadows in such images depend upon the relative position of the pattern projector and the detector. Using multiple detectors gives surface gradients from which the object's 3D form can be reconstructed.
Using a field portable, smartphone fluorometer for assessing water quality, a pH map of drinking water around Sydney is obtained. The work demonstrates a new security concept — network forensics — based on a novel smartgrid approach for the potential detection of water quality disruption.
This paper describes a cloud-based software infrastructure for teaching big data analytics. Using this infrastructure, students can retrieve and analyze real-time visual data retrieved from globally distributed network cameras.
High dynamic range (HDR) image is becoming prevalent for its superiority in recording details of the real-world scene. A conventional exposure fusion method can be utilized to generate a HDR image from a set of differently exposed low dynamic range (LDR) images according to their weight maps. However, this method causes ghosts in the HDR image if there are moving objects or the background changes...
Online universities are growing and they have to continuously integrate new technologies to provide remote students with ubiquitous learning. How to conduct lab work becomes a great challenge in distance education. Existing methods to deal with lab work in distance education institutions usually require students to travel to the actual university laboratory or the nearest located laboratories or be...
Video completion has many applications in movie post-production, such as removing unwanted objects, artifacts, or logos. Most state-of-the-art video completion techniques are time-consuming in order to ensure spatial-temporal coherence. This paper presents a Fast Video Completion (FVC) technique that is based on patch-based synthesis and image registration. FVC generates key frames without the unwanted...
Drinking activity recognition is not a well-researched area in the human activity recognition area. In this paper, a novel technique to recognize the hand grasping posture in drinking activities is proposed. The proposed method aims to overcome the accuracy issue of Kinect in detecting the correct hand position during drinking activities and no training is required to recognize the grasping posture...
We explore the feasibility of measuring learner engagement and classifying the engagement level based on machine learning applied on data from 2D/3D camera sensors and eye trackers in a 1:1 learning setting. Our results are based on nine pilot sessions held in a local high school where we recorded features related to student engagement while consuming educational content. We label the collected data...
For more than two decade now, the Brussels Regional Informatics Centre (BRIC) has been focusing on transforming the Brussels-Capital Region into a smart city by organizing, promoting and spreading the use of information and communication technologies (ICT) for the benefit of Brussels citizens, authorities, administrations, businesses and visitors. The strategy of this public interest agency is exposed...
Texas A&M University Corpus-Christi is undergoing a major university expansion on its island campus. The university's Conrad Blucher Institute for Surveying and Science was tasked with providing the spatial information needs related to this expansion. To meet this objective, a small-scale Unmanned Aircraft System (UAS) equipped with a small-format digital camera is utilized to acquire aerial imagery...
In this study, a cooperative UAV and UGV platform is proposed to obtain a wide range of visual information. The UAV recognizes a pattern marker on UGV and tracks the UGV without user control. It can provide wide range of visual information for a user in the UGV. The UGV by a user is controlled equipped with an aluminum board. And the UAV can take off and land on the UGV. The UAV uses two cameras;...
As a part of a driver assistance system, vehicle topview system plays an important role in driving safety. The objective of this research is to develop a vision-based top-view system to expand drivers' field of view. Four cameras provide a 360-degree view of the surrounding terrain of the vehicle, and the destination image is composed by these four processed images. In this paper, we divide the procedure...
In order to help people suffering from autism spectrum disorder (ASD), assistance systems have been developed with a focus on enabling ASD people to adapt to activities of daily living (e.g., augmentative and alternative communication systems [1]). However, if we reverse our viewpoint, we can develop a new concept for the assistance system: letting normal developed (ND) people experience the perceptual...
The research of augmented reality textbook is an important way to make the teaching content vivid and three-dimensional, but its development is lagging behind. This research analyzes on the basis of the principle of the augmented reality technology and its advantages for textbook development, through the case study of children's English textbook design based on augmented reality technology solutions,...
Vision-based road signs detection and recognition has been widely used in intelligent robotics and automotive autonomous driving technology. Currently, one-time calibration of inverse perspective mapping (IPM) parameters is employed to eliminate the effect of perspective mapping, but it is not robust to the uphill and downhill road. We propose an automatic inverse perspective mapping method based...
This paper presents the design and implementation of a didactic and flexible training module that contributes to the theoretical and practical development of academic training, this through a mechanical structure and a software that has the ability to perform multiple laboratory practices in different areas related to microcontrollers, computer vision, automation. The design consist of four blocks;...
Vehicle Video detection is an important part of intelligent transportation system for its characteristics of effectiveness and accuracy, and it provides important data for the security of urban traffic operation. However, in order to improve the reliability of vehicle detection in the traffic video detection system, in this paper, a pulse-coupled neural network (PCNN) is used for the image segmentation...
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