The study investigated grade 6 students' comprehension of narrative text when presented on a computer and as printed words on paper. A set of comprehension tests were developed for three stories of varying length (382 words, 1047 words and 1933 words) using a skills hierarchy protocol. The text for each story was prepared for presentation on a Macintosh computer using a program written for the study and as print in the form of exact copies of the computer screen. Students from two grade 6 classes in a suburban elementary school were randomly assigned to read one of the stories in either print form or on the computer and subsequently completed a comprehension test as well as a questionnaire concerning attitude and personal information. The responses from the comprehension tests were evaluated by graduate students in Language Education. The data evolved from the tests and questionnaires were analysed to determine measures of test construct validity, inter-rater reliability, and any significant difference in the means of comprehension scores for the two experimental groups for each story. The results indicated small but insignificant differences between the means of the three comprehension test scores for computer and print. A number of students reading from the computer complained of eye fatigue. The scores of subjects reading the longest story and complaining of eye fatigue were significantly lower. / Education, Faculty of / Curriculum and Pedagogy (EDCP), Department of / Graduate

Video surveillance systems have been commonly used in transportation systems to support traffic monitoring, speed estimation, and incident detection. However, there are several challenges in developing and deploying such systems, including high development and maintenance costs, bandwidth bottleneck for long range link, and lack of advanced analytics. In this thesis, I leverage current wireless, video camera, and analytics technologies, and present a wireless traffic monitoring system. I first present an overview of the system. Then I describe the site investigation and several test links with different hardware/software configurations to demonstrate the effectiveness of the system. The system development process was documented to provide guidelines for future development. Furthermore, I propose a novel speed-estimation analytics algorithm that takes into consideration roads with slope angles. I prove the correctness of the algorithm theoretically, and validate the effectiveness of the algorithm experimentally. The experimental results on both synthetic and real dataset show that the algorithm is more accurate than the baseline algorithm 80% of the time. On average the accuracy improvement of speed estimation is over 3.7% even for very small slope angles.

Orientador: Antonio Fernando da Conceição Passos, Roberto Berton de Angelo / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-07-31T22:28:33Z (GMT). No. of bitstreams: 1 Villela_ElisaHelena_M.pdf: 5027923 bytes, checksum: 25dbcd8bbbcf61869c2ee5fef1875266 (MD5) Previous issue date: 2001 / Resumo: Este trabalho propõe um estudo de interação de linguagens entre dança e vídeo onde discutiremos quais são, em essência, as características das duas linguagens e como articulá-Ias sem que isto signifique uma redução do potencial artístico inerente a cada uma delas. Incluiremos também a elaboração de um material que denominamos de elementos de pré-criação para uma futura realização de um vídeo-dança livremente inspirado em Moby Dick de Herman Melville. Nele descreveremos a estrutura básica do filme e também agregaremos textos e imagens que ajudaram a definir o teor dramático das diferentes etapas do processo de criação. Para tanto, começaremos fazendo um percurso que primeiramente tratará de definir o argumento que servirá de base para a elaboração deste material; em seguida, definiremos alguns conceitos e termos técnicos básicos na área do audiovisual. Uma abordagem sobre as diferentes relações espaço-temporais referentes a cada uma destas artes será nosso terceiro foco de estudo; seguiremos com algumas notas sobre o processo de criação, discutindo alguns parâmetros de criação derivados da temática de criação estabelecida. Um pequeno memorial, relatando os principais momentos de uma trajetória em dança, será a etapa final de nosso trabalho / Abstract: Not informed. / Mestrado / Mestre em Multimeios

Psicólogo / La gran mayoría de los estudios que se han realizado desde la Psicología respecto al tema de los videojuegos se centra en posibles aspectos patológicos y en el impacto positivo o negativo que este pasatiempo podría tener en sus usuarios, dejando un vacío en lo que respecta a la experiencia subjetiva del videojugador. En la presente investigación se entrevistó y aplicó el método de rejilla a 5 participantes que se identifican como gamers, con el fin de explorar el posible rol del videojuego en la construcción de su identidad. Luego de un análisis de contenido de las entrevistas y el análisis de las rejillas, se concluye que el videojuego efectivamente tiene parte junto a otras experiencias en la configuración identitaria de estosgamers, y que algunos de los elementos relacionados con el juego son integrados a su sentido de sí mismo y redes de significado

[pt] A popularidade de plataformas para o armazenamento e compartilhamento de vídeo tem criado um volume massivo de horas de vídeo. Dado um conjunto de atores presentes em um vídeo, a geração de metadados com a determinação temporal dos intervalos em que cada um desses atores está presente, bem como a localização no espaço 2D dos quadros em cada um desses intervalos pode facilitar a recuperação de vídeo e a recomendação. Neste trabalho, nós investigamos a Clusterização Facial em Vídeo para a localização espaço-temporal de atores. Primeiro descrevemos nosso método de Clusterização Facial em Vídeo em que utilizamos métodos de detecção facial, geração de embeddings e clusterização para agrupar faces dos atores em diferentes quadros e fornecer a localização espaço-temporal destes atores. Então, nós exploramos, propomos, e investigamos aplicações inovadoras dessa localização espaço-temporal em três diferentes tarefas: (i) Reconhecimento Facial em Vídeo, (ii) Recomendação de Vídeos Educacionais e (iii) Posicionamento de Legendas em Vídeos 360 graus. Para a tarefa (i), propomos um método baseado na similaridade de clústeres que é facilmente escalável e obteve um recall de 99.435 por cento e uma precisão de 99.131 por cento em um conjunto de vídeos. Para a tarefa (ii), propomos um método não supervisionado baseado na presença de professores em diferentes vídeos. Tal método não requer nenhuma informação adicional sobre os vídeo e obteve um valor mAP aproximadamente 99 por cento. Para a tarefa (iii), propomos o posicionamento dinâmico de legendas baseado na localização de atores em vídeo 360 graus. / [en] The popularity of platforms for the storage and transmission of video content has created a substantial volume of video data. Given a set of actors present in a video, generating metadata with the temporal determination of the interval in which each actor is present, and their spatial 2D localization in each frame in these intervals can facilitate video retrieval and recommendation. In this work, we investigate Video Face Clustering for this spatio-temporal localization of actors in videos. We first describe our method for Video Face Clustering in which we take advantage of face detection, embeddings, and clustering methods to group similar faces of actors in different frames and provide the spatio-temporal localization of them. Then, we explore, propose, and investigate innovative applications of this spatio-temporal localization in three different tasks: (i) Video Face Recognition, (ii) Educational Video Recommendation and (iii) Subtitles Positioning in 360-video. For (i), we propose a cluster-matching-based method that is easily scalable and achieved a recall of 99.435 percent and precision of 99.131 percent in a small video set. For (ii), we propose an unsupervised method based on them presence of lecturers in different videos that does not require any additional information from the videos and achieved a mAP approximately 99 percent. For (iii), we propose a dynamic placement of subtitles based on the automatic localization of actors in 360-video.

El presente trabajo analiza los videoensayos del canal de Youtube The Nerdwriter de Evan Puschak para tratar de definir sus características e identificar similitudes con el periodismo. El videoensayo es uno de los nuevos géneros audiovisuales surgidos en la plataforma de Youtube. Por ello, el análisis de los videos de The Nerdwriter, uno de los canales pioneros en el género, puede ayudar a determinar cuáles son sus características y si el periodismo, en particular el interpretativo y el cultural, forma parte significativa de esta nueva corriente audiovisual en internet. / This paper analyzes the video essays of the YouTube channel The Nerdwriter by Evan Puschak. to try to define its characteristics and identify similarities with journalism. The video essay is one of the new audiovisual genres that have emerged on the YouTube platform. Therefore, the analysis of videos by The Nerdwriter, one of the pioneering channels in the genre, can help determine what their characteristics are and if journalism, particularly interpretive and cultural, is a significant part of this new online audiovisual trend. / Trabajo de investigación

(in English): This thesis describes, how the internet and new media change the habits of viewers when watching audiovisual content. In a theoretical part there is briefly described an evolution of television as a medium in its every phase and also are there critically introduced new ways of video consumption. The practical part contains a qualitative sociological research in a form of deep interviews with 23 participants divided into groups by sociodemographic group. The thesis reflects difference in a media praxis between these sociodemographic groups and describes an influence of new media on audiovisual content consumption.

Exposición en el marco de la "Segunda exposición GameLab" de desarrollo de videojuegos, llevado a cabo el 02 de Junio en la Universidad Peruana de Ciencias Aplicadas (UPC), el Campus Monterrico. Lima, Peru. / Esta exposición trata del ambiente del desarrollo de juegos local y cuales son las opciones para presentar un juego al público y a la vez generar algún tipo de ingreso con ello (Advergames, News Games, Juegos freemium con ads, Plataformas de publicación, Contacto con publishers, etc.)

Memoria para optar al título de Arquitecto

This thesis reports original work on hardware realization of symmetric video encryption using chaos-based continuous systems as pseudo-random number generators. The thesis also presents some of the serious degradations caused by digitally implementing chaotic systems. Subsequently, some techniques to eliminate such defects, including the ultimately adopted scheme are listed and explained in detail. Moreover, the thesis describes original work on the design of an encryption system to encrypt MPEG-2 video streams. Information about the MPEG-2 standard that fits this design context is presented. Then, the security of the proposed system is exhaustively analyzed and the performance is compared with other reported systems, showing superiority in performance and security. The thesis focuses more on the hardware and the circuit aspect of the system’s design. The system is realized on Xilinx Vetrix-4 FPGA with hardware parameters and throughput performance surpassing conventional encryption systems.