3 research outputs found

    Automated lecture video recording, post-processing, and viewing system that utilizes multimodal inputs to provide a dynamic student experience

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    Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (page 59).This thesis describes the design, implementation, and evaluation of EduCase: an inexpensive automated lecture video recording, post-processing, and viewing system. The EduCase recording system consists of three devices, one per lecture hall board. Each recording device records color, depth, skeletal, and audio inputs. The Post-Processor automatically processes the recordings to produce an output file usable by the Viewer, which provides a more dynamic student experience than traditional video playback systems. In particular, it allows students to flip back to view a previous board while the lecture continues to play in the background. It also allows students to toggle the professor's visibility in and out to see the board they might be blocking. The system was successfully evaluated in blackboard-heavy lectures at MIT and Harvard. We hope that EduCase will be the quickest, most inexpensive, and student-friendly lecture capture system, and contribute to our overarching goal of education for all.by Sara T. Itani.M. Eng

    Aplicaci贸n de las t茅cnicas de visi贸n artificial como herramientas de expresi贸n audiovisual en el campo del cine interactivo

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    En este estudio pr谩ctico sobre nuevas estrategias de lenguaje audiovisual se utilizan sistemas innovadores de hardware y software de visi贸n artificial a la hora de buscar otras aplicaciones art铆sticas de los recursos cinematogr谩ficos tanto en la adquisici贸n (encuadre, movimientos, fuera de campo, etc.) como en el montaje (fundidos, cortes, elipsis, met谩foras, etc.). La hip贸tesis que aqu铆 se propone es que las herramientas y t茅cnicas de visi贸n artificial pueden ser utilizadas para generar nuevos lenguajes audiovisuales en el campo del cine interactivo. Para demostrar esta hip贸tesis se siguen una serie de pasos consecutivos que han permitido llevar una investigaci贸n progresiva sobre la base de un estudio de referentes art铆sticos. A partir de este estudio se han sintetizado una serie de conceptos clave identificados tanto en las obras art铆sticas como en los debates cr铆ticos referenciados. Con estos conceptos como gu铆a se han elaborado una serie de estudios experimentales previos al desarrollo de los prototipos que finalmente componen el sistema completo expuesto al p煤blico tras ser finalizado. Tanto de las pruebas de campo de los estudios experimentales como de la exposici贸n del prototipo final se extrajeron una serie de conclusiones a modo de evaluaci贸n de los resultados globales del estudio. Finalmente, a partir de estas conclusiones se han perfilado posibles l铆neas futuras de investigaci贸n. Como resultado, por una parte se han obtenido relaciones entre sonido e imagen que son singulares en el empleo de recursos como el ritmo de cambio de plano, la interdependencia sonido-imagen o el tipo de sincron铆a sonido-imagen en comparaci贸n con los audiovisuales desarrollados habitualmente por otros medios en contextos similares; por otra parte se ha demostrado, por medio de una serie de experimentos de campo, que depositar parcialmente la responsabilidad creativa de audiovisuales en un dispositivo autom谩tico puede proporcionar nuevas experiencias est茅ticas al espectador.Sanz Kirbis, D. (2014). Aplicaci贸n de las t茅cnicas de visi贸n artificial como herramientas de expresi贸n audiovisual en el campo del cine interactivo [Tesis doctoral no publicada]. Universitat Polit猫cnica de Val猫ncia. https://doi.org/10.4995/Thesis/10251/36531TESI

    Spatially Aware Computing for Natural Interaction

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    Spatial information refers to the location of an object in a physical or digital world. Besides, it also includes the relative position of an object related to other objects around it. In this dissertation, three systems are designed and developed. All of them apply spatial information in different fields. The ultimate goal is to increase the user friendliness and efficiency in those applications by utilizing spatial information. The first system is a novel Web page data extraction application, which takes advantage of 2D spatial information to discover structured records from a Web page. The extracted information is useful to re-organize the layout of a Web page to fit mobile browsing. The second application utilizes the 3D spatial information of a mobile device within a large paper-based workspace to implement interactive paper that combines the merits of paper documents and mobile devices. This application can overlay digital information on top of a paper document based on the location of a mobile device within a workspace. The third application further integrates 3D space information with sound detection to realize an automatic camera management system. This application automatically controls multiple cameras in a conference room, and creates an engaging video by intelligently switching camera shots among meeting participants based on their activities. Evaluations have been made on all three applications, and the results are promising. In summary, this dissertation comprehensively explores the usage of spatial information in various applications to improve the usability
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