Audio event detection on tv broadcast

Download

index.pdf

Date

2011

Author

Ozan, Ezgi Can

Metadata

Show full item record

Item Usage Stats

300
views

94
downloads

The availability of digital media has grown tremendously with the fast-paced ever-growing storage and communication technologies. As a result, today, we are facing a problem in indexing and browsing the huge amounts of multimedia data. This amount of data is impossible to be indexed or browsed by hand so automatic indexing and browsing systems are proposed. Audio Event Detection is a research area which tries to analyse the audio data in a semantic and perceptual manner, to bring a conceptual solution to this problem. In this thesis, a method for detecting several audio events in TV broadcast is proposed. The proposed method includes an audio segmentation stage to detect event boundaries. Broadcast audio is classified into 17 classes. The feature set for each event is obtained by using a feature selection algorithm to select suitable features among a large set of popular descriptors. Support Vector Machines and Gaussian Mixture Models are used as classifiers and the proposed system achieved an average recall rate of 88% for 17 different audio events. Comparing with the results in the literature, the proposed method is promising.

Subject Keywords

Television broadcasting

URI

http://etd.lib.metu.edu.tr/upload/12613724/index.pdf
https://hdl.handle.net/11511/20868

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

An Investigation into user experience of mobile passenger systems Kökcü Çetin, Selcen; Özgen Koçyıldırım, Dalsu; Department of Industrial Design (2019) With the developments in information and communication technologies, the use of mobile apps has increased significantly in many areas, one of which is transportation. Transportation, especially in urban environments, is a very current and prominent issue, with the ever-increasing size of the cities requiring more roads and more vehicles, while traffic congestions worsens day by day. Therefore, urban residents want to choose the most convenient and the least time-consuming way to complete their journeys. Mob...
Content-based video copy detection / Özkan, Savaş; Akar, Gözde; Department of Electrical and Electronics Engineering (2014) In recent years, need in automatic video copy detection has been increased rapidly with the recent technical developments. In general, a developed system should provide a few requirements to conduct over large database including high detection accuracy, low comparison time and low memory usage. For that purpose, within the scope of the thesis, we propose a content-based video copy detection system that consists of three crucial stages namely feature extraction, quantization-based indexing and geometric veri...
Telekomünikasyon Aralığında Yenilikçi Optoelektronik Aygıtların Üretimine Yönelik Optik Malzemelerin Femtosaniye Lazer ile Mikro-Modifikasyonu Pavlov, Ihor; Tokel, Onur(2018) 1,5 ?m dalgaboyunu kullanan telekomünikasyon teknolojilerinin hızlı gelişimi, bunlarıdestekleyen teknolojilerin de gelişmesine bağlıdır ki, bunların en kritik olanları önemlikızılötesi malzemelerden yapılan mikroaygıtların yüksek hassasiyetli üretim teknikleridir.Mikroaygıtların görünür bantta femtosaniye lazer ışını ile oluşturulması günümüze değin çokçalışılmış bir teknolojidir. Femtosaniye lazerlerin bazı özellikleri, dalga kılavuzları gibi mikroelemanların doğrudan veya kendiliğinden oluşumu alanında, b...
Kablosuz Çoklu Ortam Duyarga Ağlarında Gözetleme Uygulamaları için Füzyon-Tabanlı Çatı Tasarımı ve Geliştirilmesi Yılmaz, Turgay; Yazıcı, Adnan; Sert, Mustafa; Koyuncu, Murat; Coşar, Ahmet(2018) Bu proje kapsamında, kablosuz çoklu ortam duyarga ağları için özellikle aşağıda verilen ikikonuda çözüm üreten bir yaklaşım ve çatı (framework) geliştirilmesi amaçlanmıştır:- Halen kullanılan ağlara göre daha az enerji tüketen bir kablosuz duyarga ağı kümelemealgoritmasının geliştirilmesi: Proje kapsamında yeni bir kümeleme algoritması geliştirilmiştir.Geliştirilen algoritma, gözetleme uygulamaları da dahil olmak üzere uygulamadan bağımsızve enerji-etkin çalışabilecek şekilde tasarlanmıştır. Geliştirilen al...
Design, development and implementation of an information security and cyberethics course for pre-service teachers: a design-based research Akman Kadıoğlu, Evrim; Aşkun, Cengiz Savaş; Department of Computer Education and Instructional Technology (2019) With the introduction of the Information and Communication Technologies (ICT) into our lives, production and distribution of information have increased exponentially. The ICT systems and the data, which these systems use, create, or both is an essential resource of schools. For this reason, the secure and ethical use of information is a primary concern for schools. However, the curriculum in teacher training institutions does not include a course that aims to raise pre-service teachers’ awareness of informa...

Citation Formats

E. C. Ozan, “Audio event detection on tv broadcast,” M.S. - Master of Science, Middle East Technical University, 2011.