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Due to the sparse distribution of road video surveillance cameras, precise trajectory tracking for hit-and-run vehicles remains a challenging task. Previous research on vehicle trajectory recovery mostly focuses on recovering trajectory with low-sampling-rate GPS coordinates by retrieving road traffic flow patterns from collected GPS information. However, to the best of our knowledge, none of them...
Robotic ground vehicles are commonly used in various road conditions for performing special tasks with different levels of autonomy. This requires the robots to possess a certain degree of perception about the road conditions up ahead and make plans accordingly. It is essential for the robots to be able to quickly adapt their perception for various road conditions they operate. In this paper, an adaptive...
Smartphones are a popular device class for mobile Augmented Reality but suffer from a limited input space. Around-device interaction techniques aim at extending this input space using various sensing modalities. In this paper we present our work towards extending the input area of mobile devices using front-facing device-centered cameras that capture reflections in the cornea. As current generation...
Most existing libraries use floor plans and call numbers in order to locate books rather than providing truly user's awareness of the extensive collections and services for students in the library context. With a collection of more than 48,568 volumes at the Engineering and Exact Sciences library of the Universidad Autónoma de Yucatán (UADY), the task of looking for a book can be really a time-consuming...
Surface shape scanning techniques, such as laser scanning and photometric stereo, are widespread analytical tools used in the field of cultural heritage. Compared to regular 2D RGB photos, 3D surface scans provide higher fidelity of an object's surface shape which assist conservators, art historians, and archaeologists in understanding how these artworks and artifacts are made and to digitally document...
For a visual servo system, there usually exists the problem of time-delay likely caused by long image processing and data transmission. The visual servo system of our robot is subject to two main limitations stemming from the specific commercial mobile manipulator, of which one is the large time-delay due to image transmission, whereas the other is failure to directly command each joint velocity as...
Due to the iteration-varying initial position, it is complicated in path-tracking for the mobile service robot. Perspective dynamic system (PDS) provides a theory to formulate the system, which transmits from the apparent motion to the image plane and provides a good control theoretic framework to estimate motion problem. The proposed iterative learning control (ILC) algorithms not only consider errors...
Given the widely adoption of screen and camera in many electronic devices, the visible light communication (VLC) over screen-to-camera channel emerges as a novel short range communication technique in recent years. Active research explores various ways to convey messages over screen-camera channel, such as barcode and unobtrusive optical pattern. However, with the prevalence of LED screens of wide...
Smartphone-based augmented reality (AR) applications like the Pokémon Go game are increasingly popular. These applications make extensive use of the smartphone's camera, which may pose a privacy problem as the camera may capture sensitive images or audio information. In this paper, we present PrivacyManager, a framework that allows application developers and domain administrators to control potentially...
In recent years, mobile cyber physical systems have found applicability in multiple areas such as mobile intelligent robots and robotics systems, intelligent transportation systems, environmental monitoring systems, healthcare systems and so on. Remote control of mobile objects is a very promising field which allows to improve the convenience and safety of human society life. According to the fact...
We are studying a new technology for digital exhibition of Japanese classical writing and drawing works. We developed two type of contents based on AR technology. 1. show Honkoku text corresponding to a part of the image a camera held on. 2. show other famous drawings of the Shukuba a camera faced on, and also other links to interesting web sites related with the Shukuba. We report and show demos...
Smartphone photography is gaining popularity among young adults and can be used for expressing mood. However, how photos are used for expressing happiness is understudied. This paper presents the findings of a study involving 27 college students who were instructed to take one photo daily representing a happy moment for three weeks. The participants also viewed their daily photos three times a day...
In this paper, the service robot named “BlackBot” as receptionist robot is descried, that is a small three-wheeled mobile platform with a differential drive, which was controlled by a mini PC. The BalckBot could sense its surroundings with the aid of various electronic sensors while mechanical actuators were used to move it around. Robot's behavior was determined by the program, which was loaded to...
We investigate the pose estimation of a semi-unknown object for stereo-vision-based navigation of a mobile manipulator. A new computationally fast vision algorithm is developed to extract the object's pose at a high rate from the captured scenes. Moreover, we present a method to deal with range dependent noise characteristics of the stereo vision to fulfill requirements for mobile manipulation tasks...
Recent advances in technology and rapid growth of consumer electronics have made tremendous amount of multimedia information available to the general population. Browsing through large collections of consumer videos and manually creating summaries can be tedious. Automatic summarization techniques will give the user an easy way to look up important content of a collection of media and to browse media...
Despite significant progress in the development of human action detection datasets and algorithms, no current dataset is representative of real-world aerial view scenarios. We present Okutama-Action, a new video dataset for aerial view concurrent human action detection. It consists of 43 minute-long fully-annotated sequences with 12 action classes. Okutama-Action features many challenges missing in...
Multimodal learning analytics provides researchers new tools and techniques to capture different types of data from complex learning activities in dynamic learning environments. This paper investigates high-fidelity synchronised multimodal recordings of small groups of learners interacting from diverse sensors that include computer vision, user generated content, and data from the learning objects...
This paper indicates the dataset and challenges evaluated under PETS2017. In this edition PETS continues the evaluation theme of on-board surveillance systems for protection of mobile critical assets as set in PETS 2016. The datasets include (1) the ARENA Dataset; an RGB camera dataset, as used for PETS2014 to PETS 2016, which addresses protection of trucks; and (2) the IPATCH Dataset; a multi sensor...
This article proposes an Intelligent Tracking System for Acute Respiratory Tract Infection (TrackARTI) via a smart mobile for monitoring disease term of 0-6 age group child patients remotely (e.g. home, clinics). It is possible to maximize the quality of life of the child patients and decrease parental anxiety by keeping the child under control during monitoring stage and achieve a proper distant...
In this work we analyze the complex trade-off between data transfer, computation time, and power consumption when a multi-stage data-intensive algorithm (in this case video stabilization) is split between a low power mobile device and high power cloud server. We evaluate design choices in terms of which intermediate representations should be transferred to the server and back to the mobile device,...
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