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Mobile surveillance systems like vehicle mounted cameras (i.e. police dash cams) and body cameras play an important role in securing physical spaces. However, these systems can generate too much data that hampers timely analysis. Furthermore, existing infrastructure wireless networks may not have sufficient bandwidth to support real time streaming of videos to backend servers. This paper presents...
Mobile videos contain rich information which could be utilized for various applications, like criminal investigation and scene reconstruction. Today's crowd-sourced mobile video retrieval systems are built on video content comparison, and their wide adoption has been hindered by onerous computation of CV algorithms and redundant networking traffic of the video transmission. In this work, we propose...
In this communication era, mobile -telephone industry has grown profoundly. The urban population uses the latest mobile-phone technology while the rural population buys second hand ones, mostly with degraded battery, that require frequent charging. This battery-problem becomes a giant when user doesnt have a standard charger or an electricity connection. In this paper, researchers intent is to propose...
Touchless finger detection for the biometric fingerprint verification/identification process with mobile devices is considered in this paper. Fingerprint capturing is based on a camera system with bright-field illumination. For finger detection, a machine learning based algorithm with Aggregated Channel Features (ACFs) and a skin-color based finger segmentation with a geometric shape based approach...
In this paper we perform an analysis of human behaviour for people standing in a queue with the aim to discover, in an unsupervised way, ongoing unusual or suspicious activities. The main activity types we focus on are detecting people loitering around the queue and people going against the flow of the queue or undertaking a suspicious path. The proposed approach works by first detecting and tracking...
Digital image processing is widely used in the crack detection and location. In order to guide staff maintenance equipment more effectively and timely, the image detection system based on crack which has been put forward. On the basis of LabVIEW platform, Crack image in this system is acquired that using two industrial cameras, and then used the SIFT feature matching, RANSAC and image fusion to stitch...
Deterioration of sewer pipes is one of the very important problems in Japan. Sewer inspections have been carried out mainly by visual check or wired remote robots with a camera. However, such inspection schemes involve high labor and/or monetary cost. Sewer inspection with boat-type video cameras or unwired robots takes a long time to check the result of the inspection because video data are obtained...
Mobile crowdsourcing with smartphones is a novel paradigm that collects distributed data efficiently. Millions ofcrowdsourcing tasks should be assigned and performed every day. In order to give good service quality for mobile sensing applications, a practical assignment approach is indispensable for a task platform to select appropriate users. This paper considers heterogeneous task assignment problem...
We propose an open source robotic 3D mapping framework based on Robot Operating System, Point Cloud Library and Cloud Compare software extended by functionality of importing and exporting datasets. The added value is an integrated solution for robotic 3D mapping and new publicly available datasets (accurate 3D maps with geodetic precision) for evaluation purpose Datasets were gathered by mobile robot...
The cataract is the leading cause of blindness and affecting nearly 22 million Americans aged 40 and older. Cataract screening is a process usually carries out by an ophthalmologist using specialise equipment. The hurdles that we are facing today to screen for cataract include the availability of medical practitioner and proper equipment, especially in the rural area. Other problems include the cost...
Location-based services (LBS) are becoming increasingly popular. Particularly, indoor mobile localization methods that use GPS or wireless signals have problem of accuracy yet. This article presents a novel system to mobile visual localization according to a given image associated with a variety of wireless signals in indoor environment. Recently structure from motion (SfM) approaches enable to create...
Recently, in manufacturing, machinery, construction and shipbuilding industry, diversified researches of visualizing design drawings without difficulty utilizing augmented reality technology have been performed. In this paper, we propose efficient 3D design drawing visualization technique based on mobile augmented reality. Proposed technique first recognizes design drawing region, and only performs...
This study implements mobile-phone camera text-recognition technology into a game-based assessment design. This game is created as an alternative assessment in vocabulary instruction for learning Indonesian as a Foreign Language classroom, to explore the effectiveness and the improvement of students' vocabulary, and to increase students' motivation in conducting assessment. This game is web-based...
The popularity of smart devices and Location Based Services (LBSes) is increasing in part due to users demand for personalized information associated with their location. These services provide intuitive and realistic information by adopting Augmented Reality(AR) technology. This technology utilizes various sensors embedded in the mobile devices. However, these services have inherent problems due...
Although extensive research on action recognition has been carried out using standard video cameras, little work has explored recognition performance at extremely low temporal or spatial camera resolutions. Reliable action recognition in such a “degraded” environment would promote the development of privacy-preserving smart rooms that would facilitate intelligent interaction with its occupants while...
A smartphone application that displays a live view of road traffic can provide drivers with real-time information on traffic jams, flash floods or accidents along their planned routes. This information aids them in avoiding delays and uncertainties on the road, enhancing their navigation experience. Several US departments of transportation provide information from street cameras in the form of a snapshot...
This paper proposes a user immersive augmented reality (AR) system which utilizes three kinds of computer vision technology: projector-camera-based spatial AR, hand-gesture-based user interaction, and mobile AR. The proposed system augments 2D virtual contents on a tabletop using the projector-camera-based AR, and a user can interact with the augmented 2D contents by using natural hand gestures and...
The paper presents the setup and results of a mobile application usability test using mobile eye-tracking glasses. Quasi-real conditions of the natural environment were assured for the testing in order to avoid incidental disorders possible in natural conditions and the weaknesses of a fully lab experiment. The experiment methodology was developed and used to carry out a usability test of the mobile...
Technological developments and the emergence of new equipment such smartphones have changed news paradigms. One of the most obvious consequences was the democratization of information with the so-called citizen journalism. Anonymous persons who through their mobile and social networks can report what is happening in seconds and with just one click in their mobile phone. But after this step, we are...
The focus of our research is on improving mobile image and video browsing interfaces. To get a better idea about real world mobile photo and video scenarios and to base our research on real world numbers we performed a survey of photo and video usage on smartphones and tablets. In an online survey we asked 215 participants of the German speaking region about their mobile image collections, their usage...
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