In this thesis, we reexamine the classical problem of video super-resolution, with an aim to reproduce fine edge/texture details of acquired digital videos. In general, the video super-resolution reconstruction is an ill-posed inverse problem, because of an insufficient number of observations from registered low-resolution video frames. To stabilize the problem and make its solution more accurate, we develop two video super-resolution techniques: 1) a 2D autoregressive modeling and interpolation technique for video super-resolution reconstruction, with model parameters estimated from multiple registered low-resolution frames; 2) the use of image model as a regularization term to improve the performance of the traditional video super-resolution algorithm. We further investigate the interactions of various unknown variables involved in video super-resolution reconstruction, including motion parameters, high-resolution pixel intensities and the parameters of the image model used for regularization. We succeed in developing a joint estimation technique that infers these unknowns simultaneously to achieve statistical consistency among them. / Thesis / Master of Applied Science (MASc)

[pt] O mercado da produção audiovisual está diretamente ligado as inovações tecnológicas e uma tendência nesse setor é a veiculação de vídeos pela internet banda larga fixa e móvel. Este estudo procurou identificar como serão as transmissões de televisão via internet no ano de 2021, seus formatos, produtores de conteúdo, possíveis fontes de receita, direitos autorais e pirataria, tipos de conteúdo e outras inovações tecnológicas como o vídeo sob demanda, streaming e 3D. A pesquisa aplicou o método Delfos de previsão, que utiliza um painel de especialistas, buscando um consenso sobre o futuro. As principais conclusões são que em 2021 a Veiculação de Vídeos na Internet modificará a indústria do audiovisual em vários aspectos, como por exemplo a TV via internet banda larga fixa e móvel será mais forte que TV aberta e paga. O estudo concluiu também que, quanto aos direitos autorais, os autores de conteúdo audiovisual terão mais proteção em relação aos crimes cibernéticos mas a prática será diferente, haverá mais pirataria no Brasil em relação à transmissão vídeos de online. / [en] The Audio Visual Production Market is directly connected with technological innovations. One of the tendencies in this sector is video transmission on the Internet, fixed line, and mobile broadband. This study sought to identify how television will be transmitted via the internet in 2021, including the formats, producers content, possible sources of revenue, copyright and piracy, kinds of content, and other technological innovations such as video on demand, streaming, and 3D. The research applied the forecasts Delphi technique, which uses a group of specialists to find a consensus about the future. The main conclusions are that in 2021, video transmission on the Internet will modify the audiovisual industry in many aspects, for example, television transmission via Internet fixed line and mobile broadband will be stronger than cable and the open television network. The study also concluded that, regarding copyright, the audiovisual content authors will have more protection in relation to cyber crimes, but the practice will be different; and there will be more piracy in Brazil in relation to online video transmission.

This research was conducted to study how five home economics teachers learned three new teaching techniques through an in service distance education project. The researcher looked specifically at: (1) How effective were video assisted self-instructional packets for teaching individual learners new methods of instruction? (2) How do teachers transfer knowledge of a particular method to actual classroom use? (3) Is there a relationship between one's learning style and style of teaching? Each case study draws upon data from the participant's background, test scores, interviews, self-reports, staff reports, student products, and observations. In three cases, it was concluded that learning style may influence style of teaching. The two teachers who were unable to transfer the information did not have consistent learning styles, were not comfortable users of the media, and reported having too many things going on in their personal life which interfered with the learning process.

International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Various forms of 'lossy' and 'lossless' encoding have been implemented or proposed to allow compression of still and motion picture images, with varying degrees of success which in turn depend on how success is defined. Proponents of various systems claim 'compression ratios' which by their nature defy comparison of one system with another and suggest there actually may be something like a free lunch. This paper compares various compression methods as well as the implications involved in using them and what happens when different systems encounter the problems associated with the uses of the restored picture.

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International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Conventional video image transmission requires large data bandwidths, whether the signals are transmitted in analog or digital form. Many applications are limited to bandwidths that will not support image transmission unless high compression ratios are employed. Video compression techniques based on wavelet functions provide high data compression while preserving image quality, but are computationally demanding. Recently available high-integration devices that utilize wavelet basis functions for video compression have made possible low-cost high-performance video compression systems. Image data is more useful when provided with other data such as position information, telemetry, or other user data. This paper describes the technology, features, and limitations of a versatile low data rate system incorporating compressed video data.

ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada / In this paper, we present an efficient real-time implementation technique for Motion-JPEG2000 video compression and its reconstruction used for a real-time Airborne Video Telemetry System. we utilize Motion JPEG2000 and 256-channel PCM Encoder was used for source coding in the developed system. Especially, in multiplexing and demultiplexing PCM encoded data, we use the continuous bit-stream format of the PCM encoded data so that any de-commutator can use it directly, after demultiplexing. Experimental results show that our proposed technique is a practical and an efficient DSP solution.

本研究主要探討高工學生運用前置組織(Advance Organizer)於錄影帶教學輔助上所產生的聽力理解成效。 研究對象為台灣南部一國立高工化工、機械、室內設計科等四個班145位學生。使用全民英檢兩屆考題為前後測，並以前測成績區分高、中、低分群。實驗組給予聽前單字提攜與問題引導策略教學並佐以Family Album, U. S. A和A+English聽力教材，而控制組則只有錄影帶教材而無任何聽前引導。實驗研究共進行十六週，實驗前給予兩組學生學習背景問卷調查，實驗後由實驗組學生填寫學習回顧問卷。經由測驗、問卷兩方法得知，受試學生對於此前置引導錄影帶教學輔助在聽力理解上呈現顯着進步，其中又以高分群的成效最佳。 最後，由此研究結果提出工職英語聽力教學之具體建議。期盼對職校英語聽力學習環境、學習者、及授課教師皆有所助益。 / Video-aided English learning programs have been prevalent among students to facilitate listening skills so far. The purpose of the study is to apply a proven effective treatment of Advance Organizer (AO)—vocabulary pre-teaching and pre-questioning —with video to improve students’ listening comprehension, and to differentiate the treatment effect on students of different proficiency levels. The participants in this study are 145 first-year vocational high school students in the Departments of Chemical Engineering, Mechanical Engineering and Interior Designing. Two equivalent tests of the listening comprehension section of GEPT-Elementary Level are used as the pretest and posttest. Students are divided into high, middle and low proficiency groups according to the pretest scores. During the 16-week treatment duration, the experimental group receives AO instruction along with the supplementary videos—Family Album, U. S. A . and A+English, while the control group receives the same videos without any treatment instruction. Two questionnaires, the English Learning Orientation Survey and the Self-Reflection Questionnaire, serve to elicit background profiles of the participants to cross-examine the relations with their test performance. The results show that students receiving the AO with video instruction make significant progress on listening comprehension performance. It is also found that the effect is especially appreciable for students of high proficiency level. Based on the findings, this study proposes some pedagogical implications for industrial vocational high school teachers and indicates a direction to steer English listening instruction in vocational high schools.

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