Playback Features Research Articles

Enhanced microsimulation framework for right-turning vehicle-pedestrian interactions at signalized intersection

The unclear understanding of right-turning vehicle behavior at signalized intersections complicates the interaction with pedestrians. Current micro-dynamic modeling research falls short of effectively simulating this complexity. Specifically, the existing models fail to adequately capture the three states that right-turning vehicles may undergo: car-following, free right-turn, and avoidance of conflicting pedestrians. Moreover, pedestrian behavior is typically influenced by encountering conflicting vehicles and surrounding pedestrians, as well as traffic signals. To simulate these behaviors, the right-turning and yielding intelligent driver model (RTYIDM), the modified social force model (MSFM) considering green light pressure, and the yielding decision model between pedestrians and vehicles have been established. Model calibration is performed using detailed behavioral data collected and extracted from field observations. Furthermore, a microsimulation platform with 3D visualization and playback features has been developed to facilitate testing and demonstration. Model validation is performed by comparing it with actual trajectories in three representative scenarios of pedestrian crossing with conflict between pedestrians and vehicles. Meanwhile, the calibrated model's ability to predict pedestrian-interaction events and estimate vehicle yielding rates is also assessed. The well-established simulation performance of the proposed model makes it a useful tool for evaluating existing traffic operations.

A Proof of Concept Combined Using Mixed Reality for Personalized Neurorehabilitation of Cerebellar Ataxic Patients.

Guidelines for degenerative cerebellar ataxia neurorehabilitation suggest intensive coordinative training based on physiotherapeutic exercises. Scientific studies demonstrate virtual exergaming therapeutic value. However, patient-based personalization, post processing analyses and specific audio-visual feedbacks are not provided. This paper presents a wearable motion tracking system with recording and playback features. This system has been specifically designed for ataxic patients, for upper limbs coordination studies with the aim to retrain movement in a neurorehabilitation setting. Suggestions from neurologists and ataxia patients were considered to overcome the shortcomings of virtual systems and implement exergaming. The system consists of the mixed-reality headset Hololens2 and a proprietary exergaming implemented in Unity. Hololens2 can track and save upper limb parameters, head position and gaze direction in runtime. Data collected from a healthy subject are reported to demonstrate features and outputs of the system. Although further improvements and validations are needed, the system meets the needs of a dynamic patient-based exergaming for patients with cerebellar ataxia. Compared with existing solutions, the mixed-reality system is designed to provide an effective and safe therapeutic exergaming that supports both primary and secondary goals of an exergaming: what a patient should do and how patient actions should be performed.

A Tourism Introduction Application Using Augmented Reality

Tourism is a journey from one place to another. Whether it is an individual, a group, or a company, participants on this trip are interested in mental balance, such as reducing stress, entertaining themselves, and refreshing. A tourist attraction is one of the products or advantages of an area, where the region can create income and attract tourists to their tourist destinations. One way to promote tourism more attractively is with augmented reality media. This tourism introduction application using Augmented reality technology aims to make it easier for tourists to get to know tourism with interactive media. This tourism introduction application is needed for promotional media, including video playback features of Augmented reality technology and information about tourism. Augmented Reality is a real object in an area map that will become a marker object by detailing the tourist plan. A scan can be carried out to display 2D images, text, audio, and video with the android platform so that it can make it easier for users to use it. This research aims to design and build a tourism introduction application with the Application of Augmented Reality Technology. This research uses the Multimedia Development Life cycle method, with six stages: concept, design, material collecting, assembly, testing, and distribution, with the testing method using alpha and beta tests. The results of this research are in the form of an Android-based tourism introduction augmented reality application. This application can give contributions to assist tourists in finding information about tourism in an area and help the Department of Tourism and Culture promote tourism in the region more attractively.

Using Gaze Tracking as a Research Tool in the Deaf Health Literacy and Access to Health Information Project: Protocol for a Multisite Mixed Methods Study and Preliminary Results.

BackgroundPrevious studies have identified the internet as a major source of health information. Reliable and accessible sources of web-based health information are critical for cultivating patient-centered care. However, the accessibility and use of web-based health information remains largely unknown for deaf individuals. We used gaze-tracking technology to understand the navigation and use of web-based health information by deaf adults who communicate with sign language and by hearing adults.ObjectiveThis paper discusses our protocol for implementing gaze-tracking technology in a study that included both deaf and hearing participants. We report the preliminary results and lessons learned from the implementation of the protocol.MethodsWe conducted gaze-tracking sessions with 450 deaf signers and 450 hearing participants as a part of a larger, multisite mixed methods research study. Then, we conducted qualitative elicitation interviews with a subsample of 21 deaf and 13 hearing participants, who engaged in a search task and reviewed their gaze recordings. To our knowledge, no study has implemented a similar research protocol to better understand the experiences of deaf adults. As such, we also examined research staff notes and observations from team meetings regarding the conduct of gaze-tracking data to delineate lessons learned and best practices for research protocols in this area.ResultsFindings from the implementation of this study protocol highlight the use of gaze technology with deaf participants. We developed additional protocol steps to minimize gaze disruption from either lipreading or communicating in sign language. For example, research assistants were often unable to maintain eye contact with participants while signing because of the need to simultaneously point at the computer monitor to provide instructions related to gaze study components, such as the calibration process. In addition to developing ways to effectively provide instructions in American Sign Language, a practice exercise was included in the gaze tracker session to familiarize participants with the computer and technology. The use of the playback feature permitted a deeper dialogue between researchers and participants, which we found vital for understanding the experiences of deaf participants.ConclusionsOn the basis of our experience using the study protocol through a large research project, incorporating gaze-tracking technology offers beneficial avenues for better understanding how individuals interact with health information. Gaze tracking can determine the type and placement of visual content that attracts attention from the viewers of diverse backgrounds, including deaf individuals. The lessons learned through this study will help future researchers in determining ideal study designs, such as suitable protocols and participant characteristics (eg, deaf signers), while including gaze trackers in their projects. This approach explored how different ways of presenting health information can affect or enable visual learners to engage and use health information effectively.International Registered Report Identifier (IRRID)RR1-10.2196/26708

A Fully Wireless Wearable Motion Tracking System with 3D Human Model for Gait Analysis.

This paper presents a wearable motion tracking system with recording and playback features. This system has been designed for gait analysis and interlimb coordination studies. It can be implemented to help reduce fall risk and to retrain gait in a rehabilitation setting. Our system consists of ten custom wearable straps, a receiver, and a central computer. Comparing with similar existing solutions, the proposed system is affordable and convenient, which can be used in both indoor and outdoor settings. In the experiment, the system calculates five gait parameters and has the potential to identify deviant gait patterns. The system can track upper body parameters such as arm swing, which has potential in the study of pathological gaits and the coordination of the limbs.

Design and implementation of power efficient image compressor for WSN systems

In the digital electronics era, video and image processing, storage, data transmitting, data streaming, data retrieval, video playback features increasing exponentially. These requirements data processing and storage improvement results to necessity of hybrid compression, efficient encoding and decoding, compression ratio techniques in demand for modern real time applications. For that spatial domine technology of compression is prefer to satisfy the computational constraint for real time gadgets. Discrete wavelet transformation (DWT) based Multi-Level Block Truncation Coding (MLBTC) methodology used for special domine. Discrete Wavelet Transform procedure is utilized to constant and motion images and implemented to all mean pixel estimation of the image. Loss type compression technology BTC is implemented for gray scale image processing. It designed that original image divided as square blocks with help of quantize for decrease the gray intensity images every portion of square box having equal standard deviation and Mean values. In this proposed methodology is analysis of BWT-MLBTC image compression technologies for both binary and color images. The methodology has been implemented in Xilinx ISE software, the simulation results shows that the proposed method consumes less hardware resources, delay generations and power utilizations compared to the state of art approaches.

Design for everyone: Apple AirPods and the mediation of accessibility

ABSTRACTThis article provides a case study of the initial release of Apple’s wireless AirPods earbuds, and the subsequent implementation of a Live Listen feature (which in effect allowed the AirPods to perform basic functions of hearing aids), to explore the ways in which hearable technologies are attempting to integrate accessibility features for hard-of-hearing individuals alongside features of music playback and computer processing features that allow gesture-based interactions with these ear-worn devices. Particularly, this analysis argues that the process of rearticulating and expanding the possible uses and larger social understandings of ear-buds as being for both hearing and hard-of-hearing individuals has continued to marginalize those with hearing loss, building in software updates for them after initial releases and failing to account for their use of the devices in product launches and advertising materials. Positioning hearable technologies generally and AirPods specifically at the intersection of disabilities media studies and technology industry analysis, this research suggests that greater attention be paid to how companies like Apple use keynotes, developer conferences, and other trade rituals to suggest an ethos of accessibility around product launches despite rarely promoting or incorporating accessibility features at a product launch.

Optimization of Air Traffic Control Training at the Federal Aviation Administration Academy

This paper investigates current and future uses of simulation in the Federal Aviation Administration (FAA) Academy’s Air Traffic Control (ATC) training program to identify potential improvement areas in the areas of simulation technologies and course content. Once identified, recommendations for changes to the current training program are made. A literature review of the current training techniques used at the FAA Academy and training centers was conducted. In addition, interviews were held and surveys were distributed to collect data regarding a variety of ATC training interest areas, such as virtual reality, current maintenance schedules, and simulator features. Finally, a cost-benefit analysis was conducted to determine the potential improvement areas with the highest feasibility for implementation and the highest potential to reduce training costs and/or time. The primary findings of this research revealed three feasible improvement areas to the current training process and simulation technologies: (1) reducing the dependence on instructors during simulation training, (2) utilizing web-based training methods, and (3) updating current simulator systems to include new features, such as recording and playback features. These changes were recommended to be implemented first, with voice recognition and virtual reality improvement areas being recommended as priority focus areas for future studies and/or implementation.

A portable platform to collect and review behavioral data simultaneously with neurophysiological signals.

This paper presents a portable platform to collect and review behavioral data simultaneously with neurophysiological signals. The whole system is comprised of four parts: a sensor data acquisition interface, a socket server for real-time data streaming, a Simulink system for real-time processing and an offline data review and analysis toolbox. A low-cost microcontroller is used to acquire data from external sensors such as accelerometer and hand dynamometer. The micro-controller transfers the data either directly through USB or wirelessly through a bluetooth module to a data server written in C++ for MS Windows OS. The data server also interfaces with the digital glove and captures HD video from webcam. The acquired sensor data are streamed under User Datagram Protocol (UDP) to other applications such as Simulink/Matlab for real-time analysis and recording. Neurophysiological signals such as electroencephalography (EEG), electrocorticography (ECoG) and local field potential (LFP) recordings can be collected simultaneously in Simulink and fused with behavioral data. In addition, we developed a customized Matlab Graphical User Interface (GUI) software to review, annotate and analyze the data offline. The software provides a fast, user-friendly data visualization environment with synchronized video playback feature. The software is also capable of reviewing long-term neural recordings. Other featured functions such as fast preprocessing with multithreaded filters, annotation, montage selection, power-spectral density (PSD) estimate, time-frequency map and spatial spectral map are also implemented.

THE CAUSES AND BACKGROUND OF THE WOMENʼS MOVEMENT IN UKRAINE ILLUSTRATED BY WOMENʼS ASSOCIATIONS (second half of XIX – early XX century)

The article deals with comprehensive analysis of the womenʼs movement in Ukraine. More thorough attention is given, in particular, to the role of Ukrainian civil societies in Western Ukraine (the second half of the nineteenth – early twentieth century). The authors emphasized that in order to find a unifying idea it is very important to realize the importance of involving women to public life, learning the historical lessons of the womenʼs movement of the first wave, understanding the traditions of the movement and so on.The authors have traced the actions and active participation of women in life of the nation to realize their democratic right in order to influence political, economic and cultural life of the state, to improve their sociopolitical activity and social status, for formation of a new national women type.The main causes and background of the process of womenʼs emancipation illustrated by numerous womenʼs associations who actively fought for the development of law, national culture and education. Despite the political development of Russia and Austro-Hungary, womenʼs movement in Ukraine took place within and in accordance with the processes held in womenʼs movement in the countries of the European world.In order to define the relationship between womenʼs societies in Western Ukraine and Naddniprianski region the authors have analysed the activities of womenʼs cultural and educational societies in the local public and political life. The analysis says that women activities were not directly linked with feminism but concerned the promotion of new psychological perception of women in society.The article reveals the importance of social activity among famous Ukrainian-women and determines their impact the on the successful establishment and development of the organized womenʼs movement, its public recognition and awakening of national consciousness among all Ukrainian people.The article shows that the womenʼs movement as in whole Ukraine so Western Ukraine in particular, proved to be in a pressing need of that time. The movement campaign was formed and was developing under contemporary political, social, economic and cultural objectives aimed at the growth of Western Ukraine. The author highlights that the most characteristic features of the womenʼs movement in Western Ukraine was the dominance of the concept of liberal feminism, which is closely connected with the purpose of national liberation struggle and the formation of organizational structure, which resembles in type its contemporary European counterparts.The suggested theoretical statements and conclusions in the article provide new materials for understanding, awareness and analysis of important cultural and educational activities of womenʼs associations in the set period necessary to complete and holistic playback features of educational thought and history of national education.

Effects of captions and time-compressed video on learner performance and satisfaction

Digital video is becoming increasingly popular in higher education with faculty digitally recording and broadcasting lectures for students to learn-on-demand, such as iTunes University or YouTube. Students have discovered accelerated playback features in popular computer software and use it to reduce the amount of time watching video-enhanced instruction. In the current study, 147 undergraduate students were randomly assigned to one of six video treatments based on a 3 Video Speed (1.0=Normal vs. 1.25=Fast vs. 1.50=Very Fast)×2 Captions (Captions Present vs. Captions Absent)×2 Trial (Trial 1 vs. Trial 2) design. Results show no significant difference on learner performance across treatments based on Video Speed. Captions were found to have a significant negative effect on learner performance. A significant difference was found on learner satisfaction in favor of a normal Video Speed. The findings suggest that learners might be able to accelerate Video Speeds up to 1.5 times the normal speed, but are generally less satisfied with the learning experience.

Efficacy of New Playback Functions at Reducing Small-Bowel Wireless Capsule Endoscopy Reading Times

Interpretation of video capsule data is time-consuming. Olympus capsule endoscopy (CE) software systems are equipped with auto-speed-adjusted and express-selected playback modes and overview function in an effort to reduce reading times. The clinical efficacy of these new playback features is unknown. Our objective was to evaluate the diagnostic yield and reading times of these new playback features. This was a retrospective cohort study involving two experienced CE readers who analysed the CE procedures using either overview with express-selected or overview with auto-speed-adjusted modes. All CE videos were read blinded using Olympus Endocapsule software at 15 frames per second. The findings were then compared with those obtained when the CE procedures were read with conventional methods. Seventy patients (36 male, 34 female) with a mean age of 51 ± 22 years were included in the study. Clinically significant findings were found for 40/70 (57%) patients. Use of overview function alone resulted in recognition of 32/40 (80%) clinically significant findings; when overview function was combined with express-selected or auto-speed-adjusted methods 39/40 (97.5%) clinically significant findings were recognised. The average reading time for overview with auto-speed-adjusted mode (34 ± 10 min) was significantly (p = 0.001) more than for overview with express-selected mode (19 ± 5 min). The reading time for overview with express-selected mode was significantly lower than for overview with auto-speed-adjusted mode, with few unrecognised clinically significant lesions. These new playback systems can efficaciously reduce reading times of CE but need further evaluation in prospective multicentre studies.

* Reducing capsule endoscopy reading times: efficacy of new playback functions

IntroductionCapsule endoscopy (CE) has proven to be a valuable tool in the evaluation of obscure GI bleeding, suspected Crohn's disease, coeliac disease and polyposis syndromes. The reading time and interpretation...

The effects of time-compressed audio and verbal redundancy on learner performance and satisfaction

Digital audio is becoming increasingly popular in higher education with faculty digitally recording and broadcasting lectures for students to learn-on-demand. Students have discovered accelerated playback features in popular computer software and use it to reduce the amount of time spent listening to audio-enhanced instruction. In the current study, 183 undergraduates were randomly assigned to one of three audio-enhanced multimedia presentations that were recorded at three speeds (1.0, 1.4, and 1.8). Results show no significant difference on performance across treatments and a significant difference on satisfaction in favor of 1.4 times the normal audio speed. The results also indicate statistical differences in favor of verbal redundancy, in which the same verbal information was presented on both an auditory and visual channel.

音脈分凝を活用した携帯電話で抽出可能な音楽電子透かし技術“ゲンコーダＭａｒｋ”

We are developing audio watermarking techniques which enable extraction of embedded data by cell phones. For that we have to embed data onto frequency ranges, where our auditory response is prominent, therefore data embedding will cause much auditory noises. Previously we have proposed applying a two-channel stereo play-back feature, where noises generated by a data embedded left-channel signal will be reduced by the other right-channel signal. However, this proposal has practical problems of restricting extracting terminal location. In this paper, we propose synthesizing the noise reducing right-channel signal with the left-signal and reduces noises completely by generating an auditory stream segregation phenomenon to users. This newly proposed makes the noise reducing right-channel signal unnecessary and supports monaural play-back operations. Moreover, we propose a wide-band embedding method causing dual auditory stream segregation phenomena, which enables data embedding on whole public phone frequency ranges and stable extractions with 3-G mobile phones. From these proposals, extraction precisions become higher than those by the previously proposed method whereas the quality damages of embedded signals become smaller. In this paper we present an abstract of our newly proposed method and experimental results comparing with those by the previously proposed method.

Animal sound analysis and playback software: Building a software tool useful to field researchers

Many researchers would like to conduct sound-playback experiments with the level of control potentially available using a computer, and yet there are few programs specifically designed for computer-based playback. The lack of PC playback software led to the development of a windows 98 application called syrinx, which is specifically designed for both sound analysis and playback in the field. The goal was to provide a host of playback features that would allow researchers to conduct sophisticated field playback experiments using a sound card-equipped laptop PC and a portable speaker. syrinx can display multiple sound files as playable spectrograms, has a small suite of tools for editing sounds, displays a real-time scrolling spectrogram of audio input, allows users to log behavioral events, and has a number of other features useful for playback research. The talk will focus on the field-research-driven design goals for the syrinx project, how the program was implemented, what signal-processing tools and features were thought to be necessary for field researchers, what new features may be implemented in the future, and the challenges involved in developing a researcher- and field-friendly playback program.

Adaptation and improvement of CCITT reference model 8 video coding for digital storage media applications

Digital storage media like CD, CD-ROM, MOD, DAT, etc. open new fields of application, e.g. for storage and retrieval of moving video information for multimedia services. This paper describes a video codec operating at a bit rate supported by these media, focus being on 1.15 Mbits/s for net video. It is based on the hybrid DPCM/DCT scheme of CCITT Reference Model 8 which had been optimized within CCITT Study Group XV for telecommunications applications at bit rates ranging from 64 kbits/s to 2 Mbits/s. New building blocks have been added to implement trick modes and to improve subjective picture quality. Periodic coding of frames in an intraframe mode provides random access and, thus, fast search and reverse playback features. Adapted coder control, zoom and pan compensation, half pel accuracy of local motion vectors, weighting of transform coefficients, and noise reduction in the coding loop are the main components improving subjective picture quality for the wider range of TV applications.

Computerized Learner Supports in Pre-Logo Programming Environments

AbstractThis paper is based on an ongoing project concerned with the development of pre-Logo microworlds that form mathematically rich, problem solving environments for young children. A recent evaluation study has brought to light some difficulties inherent in the classroom implementation of such open-ended computer environments. In particular, a number of children experienced problems, entertained misconceptions, or used inefficient or “buggy” strategies. The classroom teachers were unable to provide sufficient tutorial support to their students due to time constraints and high teacher-student ratios. These observations have led to a new phase of the project, in which the microworld environment is being redesigned and enhanced with various learner support features. The new environment includes a menu-driven user interface especially designed for young children, a graphics-oriented Help utility, computerized measurement tools, and a record and playback feature. Fieldtesting of the enhanced microworlds ha...

A New Car Radio with Recording and Playback Functions

The paper describes a high performance car radio and the recording and playback features in the radio. These features allow the driver who has failed to hear some important information to listen to the missed words again. It is based on speech compression and reproduction techniques. In this paper some speech compression techniques are discussed.

An Economical Remote Teaching System

The Arizona remote teaching system (ARTS) provides an inexpensive means of teaching regular college courses wherever and whenever desired. ARTS is described in terms of its three component subsystems: the manuscript generator, reproduction equipment, and playback equipment. The unique record and local playback features of the manuscript generator are emphasized. These features, along with the short programming time required, greatly facilitate the production of software. Different modes and uses of playback equipment are also discussed in some detail. Past, present, and future uses of this remote teaching system are described.