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Tesis sobre el tema "Video synchronization"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 13 de febrero de 2022

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1

Wedge, Daniel John. "Video sequence synchronization." University of Western Australia. School of Computer Science and Software Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0084.

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[Truncated abstract] Video sequence synchronization is necessary for any computer vision application that integrates data from multiple simultaneously recorded video sequences. With the increased availability of video cameras as either dedicated devices, or as components within digital cameras or mobile phones, a large volume of video data is available as input for a growing range of computer vision applications that process multiple video sequences. To ensure that the output of these applications is correct, accurate video sequence synchronization is essential. Whilst hardware synchronization

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2

Yang, Hsueh-szu, and Benjamin Kupferschmidt. "Time Stamp Synchronization in Video Systems." International Foundation for Telemetering, 2010. http://hdl.handle.net/10150/605988.

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ITC/USA 2010 Conference Proceedings / The Forty-Sixth Annual International Telemetering Conference and Technical Exhibition / October 25-28, 2010 / Town and Country Resort & Convention Center, San Diego, California<br>Synchronized video is crucial for data acquisition and telecommunication applications. For real-time applications, out-of-sync video may cause jitter, choppiness and latency. For data analysis, it is important to synchronize multiple video channels and data that are acquired from PCM, MIL-STD-1553 and other sources. Nowadays, video codecs can be easily obtained to play most types

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3

Gaskill, David M. "TECHNIQUES FOR SYNCHRONIZING THERMAL ARRAY CHART RECORDERS TO VIDEO." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/608901.

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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California<br>Video tape is becoming more and more popular for storing and analyzing missions. Video tape is inexpensive, it can hold a two hour test, and it can be edited and manipulated by easily available consumer electronics equipment. Standard technology allows each frame to be time stamped with SMPTE code, so that any point in the mission can be displayed on a CRT. To further correlate data from multiple acquisition systems, the SMPTE code can be derived

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4

Daami, Mourad. "Synchronization control of coded video streams, algorithms and implementation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq26314.pdf.

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5

Abraham, Justin Kuruvilla. "Study of the TR Synchronization and Video Conversion Unit." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/14137.

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This dissertation describes the design and testing of a model of the Synchronization and Video Conversion Unit (SVCU), a subsystem of the tracking radar (TR) at Denel Overberg Test Range (OTR). The SVCU synchronizes all the radar sub-systems and also converts the returned RF target signals to digital numbers. The technology within the SVCU is outdated and spares are scarce if not unattainable. This study forms the first phase of the development of a new SVCU and will determine the specifications of the hardware needed to build the replacement. Models of the transmit and receive chain of the ra

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6

Yilmaz, Ayhan. "Robust Video Transmission Using Data Hiding." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1093509/index.pdf.

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Video transmission over noisy wireless channels leads to errors on video, which degrades the visual quality notably and makes error concealment an indispensable job. In the literature, there are several error concealment techniques based on estimating the lost parts of the video from the available data. Utilization of data hiding for this problem, which seems to be an alternative of predicting the lost data, provides a reserve information about the video to the receiver while unchanging the transmitted bit-stream syntax<br>hence, improves the reconstruction video quality without significant ex

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7

Potetsianakis, Emmanouil. "Enhancing video applications through timed metadata." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT029.

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Les dispositifs d'enregistrement vidéo sont souvent équipés de capteurs (smartphones par exemple, avec récepteur GPS, gyroscope, etc.) ou utilisés dans des systèmes où des capteurs sont présents (par exemple, caméras de surveillance, zones avec capteurs de température et/ou d'humidité). Par conséquent, de nombreux systèmes traitent et distribuent la vidéo avec des flux de métadonnées temporels, souvent sous forme de contenu généré par l'utilisateur (UGC). La diffusion vidéo a fait l'objet d'études approfondies, mais les flux de métadonnées ont des caractéristiques et des formes différentes, et

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8

Carranza, López José Camilo. "On the synchronization of two metronomes and their related dynamics /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151204.

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Orientador: Michael John Brennan<br>Resumo: Nesta tese são investigadas, teórica e experimentalmente, a sincronização em fase e a sincronização em anti-fase de dois metrônomos oscilando sobre uma base móvel, a partir de um modelo aqui proposto. Uma descrição do funcionamento do mecanismo de escapamento dos metrônomos é feita, junto a um estudo da relação entre este e o oscilador de van der Pol. Também uma aproximação experimental do valor do amortecimento do metrônomo é fornecida. A frequência instantânea das respostas, numérica e experimental, do sistema é usada na analise. A diferença de out

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9

Wehbe, Hassan. "Synchronisation automatique d'un contenu audiovisuel avec un texte qui le décrit." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30104/document.

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Nous abordons le problème de la synchronisation automatique d'un contenu audiovisuel avec une procédure textuelle qui le décrit. La stratégie consiste à extraire des informations sur la structure des deux contenus puis à les mettre en correspondance. Nous proposons deux outils d'analyse vidéo qui extraient respectivement : * les limites des évènements d'intérêt à l'aide d'une méthode de quantification de type dictionnaire * les segments dans lesquels une action se répète en exploitant une méthode d'analyse fréquentielle : le YIN. Ensuite, nous proposons un système de synchronisation qui fusion

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10

Carranza, López José Camilo [UNESP]. "On the synchronization of two metronomes and their related dynamics." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151204.

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Submitted by CAMILO CARRANZA (carranzacamilo@gmail.com) on 2017-07-25T19:58:22Z No. of bitstreams: 1 Camilo_PhD_Thesis.pdf: 11035322 bytes, checksum: efe400c07b13cabff41e927078789c59 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-07-26T18:31:30Z (GMT) No. of bitstreams: 1 carranzalopez_jc_dr_ilha.pdf: 11035322 bytes, checksum: efe400c07b13cabff41e927078789c59 (MD5)<br>Made available in DSpace on 2017-07-26T18:31:30Z (GMT). No. of bitstreams: 1 carranzalopez_jc_dr_ilha.pdf: 11035322 bytes, checksum: efe400c07b13cabff41e927078789c59 (MD5) Previous

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11

Nilsson, Johan, and Mikael Rothin. "Live Demonstration of Mismatch Compensation for Time-Interleaved ADCs." Thesis, Linköpings universitet, Elektroniksystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-78709.

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The purpose of this thesis is to demonstrate the effects of mismatch errors that occur in time-interleaved analog-to-digital converters (TI-ADC) and how these are compensated for by proprietary methods from Signal Processing Devices Sweden AB. This will be demonstrated by two different implementations, both based on the combined digitizer/generator SDR14. These demonstrations shall be done in a way that is easy to grasp for people with limited knowledge in signal processing. The first implementation is an analog video demo where an analog video signal is sampled by such an TI-ADC in the SDR14,

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12

Rossholm, Andreas. "On Enhancement and Quality Assessment of Audio and Video in Communication Systems." Doctoral thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00604.

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The use of audio and video communication has increased exponentially over the last decade and has gone from speech over GSM to HD resolution video conference between continents on mobile devices. As the use becomes more widespread the interest in delivering high quality media increases even on devices with limited resources. This includes both development and enhancement of the communication chain but also the topic of objective measurements of the perceived quality. The focus of this thesis work has been to perform enhancement within speech encoding and video decoding, to measure influence fa

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13

Zara, Henri. "Système d'acquisition vidéo rapide : application à la mécanique des fluides." Saint-Etienne, 1997. http://www.theses.fr/1997STET4012.

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Les systèmes de vision sont aujourd'hui largement employés pour les études expérimentales en mécanique des fluides. Les techniques d'acquisition d'images se heurtent cependant à une limitation technologique concernant la cadence et la résolution des images. De nouveaux capteurs d'images électroniques rapides, mais également certaines méthodes d'exposition permettent d'apporter des solutions à ce problème. Nous présentons dans ce mémoire un système d'acquisition vidéo rapide élaboré autour d'une plate-forme expérimentale de mécanique des fluides. Ce système est constitué en particulier : d'une

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14

Ali, Usman. "WiBOX - Une passerelle pour une réception robuste de vidéo diffusée via WIMAX et une rediffusion indoor via WIFI." Phd thesis, Télécom ParisTech, 2010. http://pastel.archives-ouvertes.fr/pastel-00576262.

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Cette thèse étudie un certain nombre d'outils (rassemblés dans la WiBox) nécessaires pour une réception fiable de vidéo diffusée sur WiMAX, puis rediffusée sur Wifi. Il s'agit de fournir des services WiMAX à des utilisateurs WiFi, avec une qualité de réception vidéo raisonnable, même avec un très faible signal WiMAX. Pour cela, des techniques de décodage conjoint de paquets erronés sont indispensables afin de limiter les retards liés aux retransmissions. Dans la première partie de cette thèse, nous considérons le problème de la délinéation de paquets agrégés en macro-paquets. Cette opération d

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15

Šimoník, Petr. "Měřič odstupu signálu od šumu obrazových signálů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217681.

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The diplomma thesis is dealing with possibilities of Signal to noise ratio measurement by method, which is based on direct measurement. It is chosen the most suitable method – signal and noise separation to two different parallel signal branches, where is measured signal strength in one branch and root mean square value in the other. The thesis is consisted of a concept of detail block scheme of Signal to noise ratio meter, which was designed in terms of theoretical knowledge. Particular functional blocks were circuit-designed, the active and passive parts were chosen and their function were d

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16

Ewelle, Ewelle Richard. "Adapter les communications des jeux dans le cloud." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS145/document.

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Le Cloud computing émerge comme le nouveau paradigme informatique dans lequel la virtualisation des ressources fournit des services fiables correspondant aux demandes des utilisateurs. De nos jours, la plupart des applications interactives et utilisant beaucoup de données sont développées sur le cloud: Le jeu vidéo en est un exemple. Avec l'arrivée du cloud computing, l'accessibilité et l'ubiquité du jeu ont un brillant avenir; Les jeux peuvent être hébergés dans un serveur centralisé et accessibles via l'Internet par un client léger sur une grande variété de dispositifs avec des capacités mod

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17

Lin, Shu-Yu, and 林書宇. "Synchronization of SVC-based P2P Video Streaming." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/69785764242630167669.

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碩士<br>國立中正大學<br>資訊工程所<br>98<br>Due to the rapid development of the Internet, Internet applications are blooming. Lots of users watch the video through the Internet and P2P architecture is one of the awesome methods for video streaming. Owning to the different capacities of user’s device and bandwidth, a video coding scheme which is called Scalable Video Coding is used to accomplish these differences. SVC supplies several kinds of video quality for different requests of users. In nowadays, P2P streaming combine its overlay structure and the characteristics of SVC to serve more heterogeneous use

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18

黃俊傑. "3D Network Browse of Real-Time Synchronization Video Conference." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/88132786363181354690.

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碩士<br>國立嘉義大學<br>資訊工程研究所<br>92<br>Because of recent years network technique progresses unlimitly, and accompanies with people pairs of the need of the teaching quality; therefore distance learning 2D image teaching can not satisfy present condition. The study at 3D distance learning environment below make use of three cameras retrieval article different angle image, Furthermore retrieval image will appear the article of the 3D and this article send to Web page which can be studying. Make uses to understands to teach scholar that want the teaching of expressed contents clearly. This r

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19

El-Helaly, Mohamed. "Integrated audio-video synchronization system for use in multimedia applications." Thesis, 2006. http://spectrum.library.concordia.ca/9214/1/El_Helaly_M_2006.pdf.

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The use of multimedia system have moved beyond the studio barriers and into the homes. As computers become more powerful, multimedia systems become more realizable on the PC. As these multimedia systems become more complicated, the need to provide complex integration systems and synchronization arises. To develop a multimedia system, one must ensure that a synchronization approach is in place to solve the timing issues related to the media types involved. Temporal information in multimedia systems must be maintained such that no loss of coherency is endured. The system must ensure that no mat

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20

Leu, Yow-Sheng, and 呂侑陞. "Video and Audio Synchronization Mechanisms and Applications On Embedded System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/n4dr53.

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碩士<br>國立成功大學<br>工程科學系碩博士班<br>92<br>Nowadays digital image process systems is progressing very rapidly, digital cameras, digital Video camera are producing one after another. When we were make video capture , image recognition or image tracing, devices with a lot of sampling video data or filter the data which the users need, and then again we use these data to perform these functions which the users would like to reach. Since personal computers are for general purpose, it is unfavorable to provide some special functions. The other reason is that the movement of the computer is not convenient.

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21

Huang, Yu-Shiang, and 黃昱翔. "To Apply UPnP Technology in Synchronization between Separated Video and Audio Players." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/07402067233613157033.

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碩士<br>中華大學<br>資訊工程學系(所)<br>98<br>On Multimedia Digital Home Networks, an audio player may be separated from the video player. Due to forward or rewind a video, it makes the video player and the audio player asynchronous. Based on the original UPnP AV architecture, a synchronous mechanism is proposed in this paper. With exchanging both status of the video player and the audio player in UPnP messages, the synchronization is accomplished.

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22

Lai-Huei, Wang, and 王來輝. "The Design of Synchronization Algorithms for High-mobility Digital Video Broadcast Receivers." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/38204850851541558193.

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碩士<br>國立交通大學<br>電信工程系所<br>93<br>In recent years, OFDM becomes popular for broadband communications. However, compared to single carrier systems, OFDM system is very sensitive to the synchronization problem. The mismatch of crystal oscillators between the transmitter and the receiver circuitry causes the sampling clock frequency offset and will introduce ICI and ISI. Furthermore, if the mobile wireless transmission is considered, the synchronization maintenance will become more difficult because of the Doppler effect. The main topic of this thesis is to discuss the synchronization problems of O

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23

Chien, Chih-Pin, and 簡志賓. "ECG and Video Synchronization Scheme Design and Implementation in the Biomedical Monitoring Software System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/21369653385533542319.

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碩士<br>國立中正大學<br>通訊工程學系<br>98<br>With the highly development of medical technology, the average life span of humans is getting longer and the world is turning into an aging society. As known, aging society costs relatively high in medical treatment and resources. In order to make well use of those resources, large-scaled hospitals have already started mobile medical services to provide better nursing to the patient who lives far away from city and the poor. However, mobile medical service is still limited to the long distance and transportation inconvenience. Therefore, advanced countries are f

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24

Tsuei, Ying-Ho, and 崔瀅和. "An Agent Synchronization System Using Human Feature Point tracking and Localization in Video Sequences." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/41566963921202585677.

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碩士<br>中原大學<br>資訊工程研究所<br>97<br>Building a model is often the first step for many technical applications. In computer animations or movies, motion of the model is typically driven using human motion that is estimated by a motion capturing system. But, such a system is often costly and may not be affordable for the general public in daily applications. To solve the problem, we propose an agent synchronization system using human feature point tracking and localization in video sequences. The method includes: human feature point definition, level-based feature point tracking, feature point localiz

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25

Hsu, Wei-Lun, and 許維倫. "Index modulation for H.264 video watermarking and temporal synchronization based on feature statistics." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/v89vw9.

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碩士<br>國立中央大學<br>通訊工程研究所<br>94<br>H.264 is a new advanced standard. The applications of video on Internet or wireless networks become very popular nowadays. However, these digital contents can be easily modified and copied by end users. Hence copyright protection, copy control and integrity verification has become important issues in recent years. Digital watermarking is a means of claiming ownership of a data source. In the proposed system, block polarity and block index modulation are used to achieve watermark embedding. The block polarity is determined based on the nonzero quantized DC coef

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26

LIU, GUO-MIN, and 劉國明. "A synchronization control mechanism and performance evaluation for packetized voice and video in ATM networks." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/83761441656312109866.

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27

LIEN-YING-SHUN and 連英順. "Synchronization of New 4D Lorenz Chaotic System and Implement Real-Time Video Cryptosystem via FPGA." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/31450576719270469744.

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碩士<br>國立臺灣科技大學<br>自動化及控制研究所<br>104<br>Because multimedia applications affect many aspects of our life, multimedia data security is becoming an important problem. To protect the increasing use of multimedia, security technologies are being developed. Based on the 3D Lorenz chaotic system, we redesign and produce the New 4D Lorenz chaotic system. And we apply the Matlab to analyze the new chaotic system’s properties which include 2D phase portraits, 3D phase portraits, equilibrium analysis, divergence analysis, power spectral density analysis and Lyapunov exponent diagrams. Then we simulate the

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28

Pooley, Daniel William. "The automated synchronisation of independently moving cameras." 2008. http://hdl.handle.net/2440/49461.

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Computer vision is concerned with the recovery of useful scene or camera information from a set of images. One classical problem is the estimation of the 3D scene structure depicted in multiple photographs. Such estimation fundamentally requires determining how the cameras are related in space. For a dynamic event recorded by multiple video cameras, finding the temporal relationship between cameras has a similar importance. Estimating such synchrony is key to a further analysis of the dynamic scene components. Existing approaches to synchronisation involve using visual cues common to both vide

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29

HUANG, BO-SONG, and 黃柏菘. "A Study on Synchronization of Multi-source Videos." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/22126670905961308803.

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碩士<br>國立雲林科技大學<br>電機工程系<br>104<br>In this thesis, a video synchronization system was developed based on feature point matching. The proposed system contains several parts: pre-processing, key frame selection, feature point matching, and frame index difference computation. Since videos may have different frame rates and frame sizes, the pre-processing procedure is used to normalize the frame rate and frame size of videos. After key frame extraction, matching similar key frames from difference videos is conducted based on feature point matching and RANSAC. The frame index differences among video

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Breuleux-Ouellette, Yan. "Tempêtes. Composition audiovisuelle." Thèse, 2013. http://hdl.handle.net/1866/10756.

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