Compression evaluation of surgery video recordings retaining diagnostic credibility (compression evaluation of surgery video)

2008 ◽  
Vol 16 (4) ◽  
Author(s):  
M. Duplaga ◽  
M. Leszczuk ◽  
Z. Papir ◽  
A. Przelaskowski
Keyword(s):  
Digital Video ◽  
Vector Measure ◽  
Lossless Compression ◽  
Video Content ◽  
Video Recordings ◽  
Subjective Tests ◽  
Objective Tests ◽  
Correlated Factors ◽  
Sort Algorithm

AbstractWider dissemination of medical digital video libraries is affected by two correlated factors, resource effective content compression that directly influences its diagnostic credibility. It has been proved that it is possible to meet these contradictory requirements halfway for long-lasting and low motion surgery recordings at compression ratios close to 100 (bronchoscopic procedures were a case study investigated). As the main supporting assumption, it has been accepted that the content can be compressed as far as clinicians are not able to sense a loss of video diagnostic fidelity (a visually lossless compression).Different market codecs were inspected by means of the combined subjective and objective tests toward their usability in medical video libraries. Subjective tests involved a panel of clinicians who had to classify compressed bronchoscopic video content according to its quality under the bubble sort algorithm. For objective tests, two metrics (hybrid vector measure and hosaka Plots) were calculated frame by frame and averaged over a whole sequence.

scholarly journals Facilitating Group Analysis of Two Case Studies Utilising Peer Tutoring: Comparison of Tasks and Outcomes

2016 ◽  
Vol 2 (2) ◽  
pp. 90
Author(s):  
Lin Siew Fong
Keyword(s):  
Case Studies ◽  
Peer Tutoring ◽  
Group Process ◽  
Teaching And Learning ◽  
Group Analysis ◽  
Financial Accounting ◽  
Accounting Students ◽  
Effective Learning ◽  
Video Recordings

<p>Peer-tutoring sessions of two groups of advanced diploma in financial accounting students with mixed proficiency were analysed thoroughly in this study. Numerous studies in peer tutoring have produced favourable results to both tutors and tutees due to the scaffolding process which promotes effective learning. However, there is a lack of studies conducted using case study as a group task in peer tutoring. Therefore, in this study, the analysis of this type of task in the course of peer tutoring is given much prominence. Video recordings of the peer-tutoring sessions were made and informants were interviewed and wrote journals in order to obtain data to be analysed. The researcher’s observation notes were useful in increasing understanding of the group process. The findings revealed that there were similarities and differences pertaining to the teaching and learning experiences encountered by both tutors and tutees when analysing the two case studies. Therefore, appropriate case studies which match students’ abilities are recommended to be used in peer tutoring. Furthermore, regular guidance provided by instructors for tutors is crucial in developing their confidence in playing their role.<strong> </strong></p>

scholarly journals Bisnis Vlogging dalam Industri Media Digital di Indonesia

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Jimi Narotama Mahameruaji ◽  
Lilis Puspitasari ◽  
Evi Rosfiantika ◽  
Detta Rahmawan
Keyword(s):  
Social Media ◽  
Digital Media ◽  
Media Studies ◽  
Significant Role ◽  
Support Systems ◽  
Media Industry ◽  
Video Content ◽  
New Business ◽  
Digital Media Studies

This study explores the phenomenon of Vlogger as a new business in the digital media industry in Indonesia. Vlogger refer to social media users who regularly upload a variety of video content with various themes. We used case study to describe and analyze Youtube’s significant role in managing Vlogger communities, and also design support systems to make the communities growth and sustainable. We also explore Vlogger role as Online Influencer. This study is expected to be one of the references related to Vlogger phenomenon in the context of digital media studies in Indonesia.

Creating Spaces for Critical Literacy for Bilingual Learners

2018 ◽  
pp. 28-46
Author(s):  
So Jung Kim
Keyword(s):  
Young Children ◽  
Critical Literacy ◽  
Literacy Practices ◽  
Korean Language ◽  
Race And Gender ◽  
Video Recordings ◽  
Field Notes ◽  
And Gender ◽  
Audio Video

With heightened emphasis on critical literacy pedagogies, attention to critical literacy for young children (CLYC) has rapidly increased. Yet, there is a paucity of studies examining CLYC in bilingual settings, particularly in Pre-K contexts. Utilizing a qualitative case study design, the current study examined how early critical literacy can be implemented as a medium to help young bilinguals critique texts and develop critical perspectives about race and gender. The study was conducted in a kindergarten classroom at the Korean Language School in a Midwestern city in the US. The data were collected over a semester using multiple collection sources including audio/video recordings, observational field notes, interviews, and children's artifacts. Findings suggest the potential of early critical literacy practices in bilingual contexts to open critical conversations about race and gender with young children. The study also provides teachers with tips on how to create supportive literary environments for young bilingual children.

Creating Spaces for Critical Literacy for Bilingual Learners

2019 ◽  
pp. 1303-1321
Author(s):  
So Jung Kim
Keyword(s):  
Young Children ◽  
Critical Literacy ◽  
Literacy Practices ◽  
Korean Language ◽  
Race And Gender ◽  
Video Recordings ◽  
Field Notes ◽  
And Gender ◽  
Audio Video

With heightened emphasis on critical literacy pedagogies, attention to critical literacy for young children (CLYC) has rapidly increased. Yet, there is a paucity of studies examining CLYC in bilingual settings, particularly in Pre-K contexts. Utilizing a qualitative case study design, the current study examined how early critical literacy can be implemented as a medium to help young bilinguals critique texts and develop critical perspectives about race and gender. The study was conducted in a kindergarten classroom at the Korean Language School in a Midwestern city in the US. The data were collected over a semester using multiple collection sources including audio/video recordings, observational field notes, interviews, and children's artifacts. Findings suggest the potential of early critical literacy practices in bilingual contexts to open critical conversations about race and gender with young children. The study also provides teachers with tips on how to create supportive literary environments for young bilingual children.

Using the Interactive Whiteboard to Stimulate Active Learning in School Science

2010 ◽  
pp. 102-117 ◽  
Author(s):  
Sara Hennessy ◽  
Rosemary Deaney ◽  
Chris Tooley
Keyword(s):  
Active Learning ◽  
Teaching And Learning ◽  
School Science ◽  
Interactive Whiteboards ◽  
Secondary Teacher ◽  
Pedagogical Strategies ◽  
Video Recordings ◽  
Field Notes ◽  
The Uk

This case study is set in the context of an extraordinarily rapid influx of interactive whiteboards in schools in the UK. The focus is on pedagogical strategies used to harness the functionality of this powerful technology to support teaching and learning in science. The study offers a vivid example of how one expert secondary teacher used the IWB technology and other digital resources to support “active learning” about the process of photosynthesis by a class of students aged 14-15. Collaborative thematic analysis of digital video recordings, teacher diary, field notes and post-lesson interview data from a sequence of six lessons yielded detailed, theorized descriptions of the teacher’s own rationale. The chapter concludes by highlighting a multimedia resource produced as an outcome of this case study in order to support professional development of practitioners working in other contexts.

Focus of Attention Verbalizations in Beginning Band: A Multiple Case Study

2020 ◽  
pp. 002242942097363
Author(s):  
John E. Parsons ◽  
Amy L. Simmons
Keyword(s):  
Motor Skills ◽  
Multiple Case Study ◽  
Focus Of Attention ◽  
Beginning Band ◽  
External Focus ◽  
Video Recordings ◽  
Complex Motor ◽  
Multiple Case ◽  
Complex Motor Skills

Although the effects of focus of attention (FOA) on the performance of gross motor skills are now well understood, less is known about the role of FOA in naturalistic classroom settings where learners are engaged in the ongoing acquisition and refinement of complex motor skills. The purpose of this study, the first of its kind, was to explore how music teachers focus learners’ attention on physical actions (internal focus) and on the effects of those actions (external focus). We recorded three experienced band directors teaching beginner classes (sixth graders) and completed a content analysis of video recordings to describe (a) teachers’ use of internally focused (IF) and externally focused (EF) verbalizations and (b) patterns among IF and EF verbalizations. These teachers most often directed student attention to internal aspects of performance, and they also paired IF and EF statements to clearly convey how those actions affect external outcomes. Although our descriptive multiple case study design precludes generalization, these data suggest possibilities for future studies that could explore relationships between teachers’ FOA verbalizations and skill development in music classrooms.

scholarly journals Developing Children’s Cultural Identities Through Play

2020 ◽  
Vol 2 (2) ◽  
pp. 244-257
Author(s):  
Winnie Sin Wai PUI ◽  
ZHANG Heyi ◽  
DING Ming ◽  
ZHONG Cai E
Keyword(s):  
Young Children ◽  
Qualitative Case Study ◽  
Early Years ◽  
Cultural Identities ◽  
Global Mindset ◽  
Video Recordings ◽  
Whole Person ◽  
Curriculum Framework ◽  
Field Notes

Play is an important vehicle for developing literacy, cognition, and social competence in early years settings. In this paper, a qualitative case study in a private kindergarten in China indicated how children could learn and appreciate their own culture in a thoughtfully designed play-based setting. Thirty kindergarten teachers from 15 classes consisting of 431 children in total participated in this study. Based on field notes, audio and video recordings, and teachers’ self-reflective notes, the study explored the play-based setting within a curriculum framework, i.e. the Early-years Whole-person Global-mindset Curriculum Framework (ewgc). The results showed that the play-based setting supported young children to form their own cultural identities and enhanced children’s development in general.

Testing Time: Testing the understanding of the concept of equation

1957 ◽  
Vol 50 (5) ◽  
pp. 400-402
Author(s):  
Eugene D. Nichols
Keyword(s):  
Objective Test ◽  
Testing Time ◽  
Subjective Tests ◽  
Objective Tests

There are basically two types of tests used by teachers of mathematics: objective and subjective. In objective tests, the judgment of the scorer docs not affect the score; the objective test scored by a number of persons yields the same score on each scoring. Different scores on subjective tests frequently result not only when scored by different persons, but even when scored by the same person at different times.

Rendering of digital video content through OpenGL ES on Smart TV

2013 ◽  
Author(s):  
Bojan Radovic ◽  
Goran Miljkovic ◽  
Branko Bogicevic ◽  
Velibor Mihic
Keyword(s):  
Digital Video ◽  
Video Content ◽  
Opengl Es ◽  
Smart Tv
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