scholarly journals Usage of the Educational Video by Students-Veterinarians Who are Studying Operative Surgery

2021 ◽  
pp. 24-31
Author(s):  
Oleksandr Stepanov
Keyword(s):  
Educational Video ◽  
Surgical Video ◽  
Teaching Aids ◽  
Operative Surgery ◽  
Lecture Room ◽  
Veterinary Surgeons ◽  
Quality Video ◽  
Similar Materials ◽  
High Quality Video ◽  
Informative Character

The training of veterinary surgeons, in conditions that do not allow for surgical intervention, requires the use of modern interactive teaching aids. These include educational surgical video. Providing auditory and visual perception of information, it has high informative character. Surgical video gives the opportunity to communicate to each student all the intricacies of the operation, without requiring its presence on it, allows you to demonstrate all stages of the process, being in the most comfortable point of perception. Watching a high-quality video that reproduces the dangerous work of a surgeon without risk completely helps to master the necessary material. Another important advantage of the educational video is that the student can view it on his own, in order to acquaint or repeat the material, as well as to store it on disk media. In the course of research, an analysis of scientific sources on the use of educational videos in higher education was conducted. In order to obtain data on the use of surgical video, by the students studying operative surgery, were used such sociological methods as surveys, observations, questionnaires. According to the data obtained in the study of operative surgery, all students use the abstract of classroom lessons and surgical video. 75% of them use the textbook and 25% of the surgical sites. However, among those who take information on surgical sites, 70% are looking for text materials and 30% are browsing photos and pictures. In preparation for a real operation, all students prefer a video showing the entire operation from beginning to end. With the educational purpose of such a movie would be to view ¾ of the students surveyed, and for others it is short enough. 50% of the students after the first review of the video tutorial on the topic in the lecture room at home look for similar materials and revisit them as well as download their media. The work opens the prospect of further research on the use of surgical video in the preparation of veterinary surgeons.

scholarly journals Fuzzy-Based Quality Adaptation Algorithm for Improving QoE from MPEG-DASH Video

2021 ◽  
Vol 11 (11) ◽  
pp. 5270
Author(s):  
Waqas ur Rahman ◽  
Md Delowar Hossain ◽  
Eui-Nam Huh
Keyword(s):  
State Of The Art ◽  
Video Quality ◽  
Buffer Size ◽  
Bandwidth Utilization ◽  
Adaptation Algorithm ◽  
Control Laws ◽  
Quality Video ◽  
Video Player ◽  
High Quality Video ◽  
Abr Algorithm

Video clients employ HTTP-based adaptive bitrate (ABR) algorithms to optimize users’ quality of experience (QoE). ABR algorithms adopt video quality based on the network conditions during playback. The existing state-of-the-art ABR algorithms ignore the fact that video streaming services deploy segment durations differently in different services, and HTTP clients offer distinct buffer sizes. The existing ABR algorithms use fixed control laws and are designed with predefined client/server settings. As a result, adaptation algorithms fail to achieve optimal performance across a variety of video client settings and QoE objectives. We propose a buffer- and segment-aware fuzzy-based ABR algorithm that selects video rates for future video segments based on segment duration and the client’s buffer size in addition to throughput and playback buffer level. We demonstrate that the proposed algorithm guarantees high QoE across various video player settings and video content characteristics. The proposed algorithm efficiently utilizes bandwidth in order to download high-quality video segments and to guarantee high QoE. The results from our experiments reveal that the proposed adaptation algorithm outperforms state-of-the-art algorithms, providing improvements in average video rate, QoE, and bandwidth utilization, respectively, of 5% to 18%, about 13% to 30%, and up to 45%.

scholarly journals Factors Affecting the Popularity of Video Content on Live-Streaming Services: Focusing on V Live, the South Korean Live-Streaming Service

2020 ◽  
Vol 12 (5) ◽  
pp. 1784 ◽  
Author(s):  
Minjeong Ham ◽  
Sang Woo Lee
Keyword(s):  
Live Streaming ◽  
Cumulative Number ◽  
Video Content ◽  
Factors Affecting ◽  
South Korean ◽  
Key Characteristics ◽  
Quality Video ◽  
Streaming Service ◽  
High Quality Video ◽  
Production Company

Naver V Live, a South Korean live-streaming service, showcases video contents specific to the entertainment industry, such as K-pop and music. On V Live, K-pop stars and their fans can interact directly in a natural way, and V Live provides high-quality video content with novel topics. This study has identified key characteristics of video content that affect its popularity. A total of 620 video contents of five leading Star channels were classified on the basis of production company, type of video content, and whether it was live-streamed or not. The popularity of video content was measured by the number of comments, hearts, and views. To control potential bias, additional variables were set as control variables—such as the number of channel subscribers, mini-album sales, if the video content was previewed, and cumulative number of days since the video content was uploaded. For analysis, a hierarchical linear regression was conducted. The findings suggest future directions in video content planning.

scholarly journals Regional education on endoscopic surgery using a teleconference system with high-quality video via the internet: Saga surgical videoconferences

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Tatsuya Manabe ◽  
Mitsuhiro Takasaki ◽  
Takao Ide ◽  
Kenji Kitahara ◽  
Seiji Sato ◽  
...  
Keyword(s):  
Endoscopic Surgery ◽  
Educational System ◽  
High Speed ◽  
The Internet ◽  
Web Conferencing ◽  
High Quality ◽  
Anatomical Structures ◽  
Quality Video ◽  
High Quality Video ◽  
Conferencing System

Abstract Background Effective education about endoscopic surgery (ES) is greatly needed for unskilled surgeons, especially at low-volume institutions, to maintain the safety of patients. We have tried to establish the remote educational system using videoconference system through the internet for education about ES to surgeons belonging to affiliate institutions. The aim of this manuscript was to report the potential to establish a comfortable remote educational system and to debate its advantages. Methods We established a local remote educational conference system by combining the use of a general web conferencing system and a synchronized remote video playback system with annotation function through a high-speed internet. Results During 2014–2019, we conducted 14 videoconferences to review and improve surgeons’ skills in performing ES at affiliated institutions. At these conferences, while an uncut video of ES that had been performed at one of the affiliated institutions was shown, the surgical procedure was discussed frankly, and expert surgeons advised improvements. The annotation system is useful for easy, prompt recognition among the audience regarding anatomical structures and procedures that are difficult to explain verbally. Conclusions This system is of low initial cost and offers easy participation and high-quality videos. It would therefore be a useful tool for regional ES education.

LEVERAGE: Reciprocal peer tutoring over broadband networks

ReCALL ◽  
1999 ◽  
Vol 11 (1) ◽  
pp. 133-142 ◽  
Author(s):  
Jan Wong ◽  
Agnès Fauverge
Keyword(s):  
Language Learning ◽  
Peer Tutoring ◽  
Computer Network ◽  
Web Based ◽  
Application Sharing ◽  
Quality Video ◽  
Reciprocal Peer Tutoring ◽  
Set Up ◽  
High Quality Video ◽  
Experimental Use

This paper reports on the experimental use of a broadband computer network hypermedia environment for language learning (French, English and Spanish). Using Web-based resources, students engage in a collaborative task over a network which offers high quality video-conferencing, application sharing and access to authentic multimedia resources. One of the main aims was to establish the practicalities of providing learners of languages with opportunities to engage in reciprocal peer tutoring. After outlining the pedagogical assumptions, and describing the set-up of the network-based learning environment, the trials are analysed, and the effectiveness of network-based language learning in supporting collaborative learning is discussed.

Implementation of Video Transcoding Client Based on FFMPEG

2013 ◽  
Vol 756-759 ◽  
pp. 1748-1752 ◽  
Author(s):  
Hao Zeng ◽  
Yuan Fang
Keyword(s):  
Streaming Media ◽  
Source Code ◽  
Video Codec ◽  
Video Transcoding ◽  
Stream Media ◽  
Quality Video ◽  
Media Server ◽  
High Quality Video ◽  
Video Format ◽  
Streaming Media Server

As the increasing applications of streaming media, using the streaming media server to provide high-quality video service for people becomes a trend. Streaming media server for video format requirements has become the bottleneck of its development, In this paper, we give a kind of transcoding method, through compiling FFmpeg source code under the windows OS, adding the x264 video codec and FAAC audio library, we can get ffmpeg.exe which can run directly, and we use MFC to design the the operation interface, which used to convert other video formats into stream media server supported formats.

scholarly journals Enhancing Mobile Military Surveillance Based on Video Streaming by Employing Software Defined Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Iulisloi Zacarias ◽  
Janaína Schwarzrock ◽  
Luciano P. Gaspary ◽  
Andersonn Kohl ◽  
Ricardo Q. A. Fernandes ◽  
...  
Keyword(s):  
Video Streaming ◽  
Situation Awareness ◽  
Mobile Networks ◽  
Image Transmission ◽  
Surveillance Systems ◽  
High Quality ◽  
Quality Video ◽  
Military Systems ◽  
Streaming Service ◽  
High Quality Video

Situation awareness in surveillance systems benefits from high-quality video streaming service. This is even more important considering military systems, in which delays in image transmission may have a significant impact on the decision-making process. However, in order to deliver high-quality video streaming service, the required network infrastructure may be prohibitively complex, or even completely impossible to deploy, if mobile data providers are considered. Moreover, the demand for high network throughput poses extra requirements on the network. Considering this context, this paper addresses the problem of highly mobile networks composed of unmanned aerial vehicles (UAVs) as data providers of a military surveillance system. The proposed approach to tackle the problem is based on a Software Defined Networking (SDN) approach aiming at providing the best routes to deliver the data, enhancing the end-user quality of experience. An extensive experimental campaign was performed by means of simulations and the acquired results provide solid evidence of the usefulness of this proposal.

scholarly journals A method for reducing information redundancy of digital images for cloud storage

Connectivity ◽  
2020 ◽  
Vol 148 (6) ◽  
Author(s):  
Yu. I. Katkov ◽  
◽  
O. S. Zvenigorodsky ◽  
O. V. Zinchenko ◽  
V. V. Onyshchenko ◽  
...  
Keyword(s):  
Image Compression ◽  
Video Compression ◽  
Cloud Storage ◽  
Video Data ◽  
Information Redundancy ◽  
High Quality ◽  
Video Information ◽  
Quality Video ◽  
High Quality Video

The article is devoted to the topical issue of finding new effective and improving existing widespread compression methods in order to reduce computational complexity and improve the quality of image-renewable image compression images, is important for the introduction of cloud technologies. The article presents a problem To increase the efficiency of cloud storage, it is necessary to determine methods for reducing the information redundancy of digital images by fractal compression of video content, to make recommendations on the possibilities of applying these methods to solve various practical problems. The necessity of storing high-quality video information in new HDTV formats 2k, 4k, 8k in cloud storage to meet the existing needs of users has been substantiated. It is shown that when processing and transmitting high quality video information there is a problem of reducing the redundancy of video data (image compression) provided that the desired image quality is preserved, restored by the user. It has been shown that in cloud storage the emergence of such a problem is historically due to the contradiction between consumer requirements for image quality and the necessary volumes and ways to reduce redundancy of video data, which are transmitted over communication channels and processed in data center servers. The solution to this problem is traditionally rooted in the search for effective technologies for compressing, archiving and compressing video information. An analysis of video compression methods and digital video compression technology has been performed, which reduces the amount of data used to represent the video stream. Approaches to image compression in cloud storage under conditions of preservation or a slight reduction in the amount of data that provide the user with the specified quality of the restored image are shown. Classification of special compression methods without loss and with information loss is provided. Based on the analysis, it is concluded that it is advisable to use special methods of compression with loss of information to store high quality video information in the new formats HDTV 2k, 4k, 8k in cloud storage. The application of video image processing and their encoding and compression on the basis of fractal image compression is substantiated. Recommendations for the implementation of these methods are given.

High-Quality Video Recording and Monitoring System for Endoscopes

2005 ◽  
Vol 115 (8) ◽  
pp. 1520-1521 ◽  
Author(s):  
Koichi Tsunoda ◽  
Atsunobu Tsunoda ◽  
Hiroyuki Ozawa ◽  
Takekatsu Fujimine
Keyword(s):  
Monitoring System ◽  
Video Recording ◽  
High Quality ◽  
Quality Video ◽  
High Quality Video
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