scholarly journals Watermarking for Video Inter-Frame Tamper Detection

2021 ◽  
Vol I (I) ◽  
Author(s):  
P. Keerthana ◽  
E. Nikita

Technology advances at the same rate as human beings. Technology comes with both pros and cons. As difficult as it may be to create a video, modifying it is a piece of cake. Today's culture has easy access to video editing tools, making it possible to make changes to video footage. Video fraud cannot be detected by the sagacity of a person. Tampering is the act of making unauthorised changes or additions to video content by tampering with the video's source code or other code. As a result of their frequent use as evidence, digital videos are indispensable in the courtroom. This method uses Particle Imaging Velocimetry (PIV) to locate areas in the video that have been tampered with. Video manipulation may be detected in a variety of ways using this technique.

Author(s):  
Jing Liu ◽  
Khairul Manami Kamarudin ◽  
Yuqi Liu ◽  
Jinzhi Zou

Background: An infectious disease can affect human beings at an alarming speed in modern society, where Coronavirus Disease 2019 (COVID-19) has led to a worldwide pandemic, posing grave threats to public security and the social economies. However, as one of the closest attachments of urban dwellers, urban furniture hardly contributes to pandemic prevention and control. Methods: Given this critical challenge, this article aims to propose a feasible solution to coping with pandemic situations through urban furniture design, using an integrated method of Quality Function Deployment (QFD) and Analytic Network Process (ANP). Eight communities in China are selected as the research sites, since people working and living in these places have successful experience preventing and containing pandemics. Results: Three user requirements (URs), namely, usability and easy access, sanitation, and health and emotional pleasure, are determined. Meanwhile, seven design requirements (DRs) are identified, including contact reduction, effective disinfection, good appearance, social and cultural symbols, ergonomics, smart system and technology and sustainability. The overall priorities of URs and DRs and their inner dependencies are subsequently determined through the ANP-QFD method, comprising the House of Quality (HQQ). According to the theoretical results, we propose five design strategies for pandemic prevention and control. Conclusion: It is demonstrated that the incorporated method of ANP-QFD has applicability and effectiveness in the conceptual product design process. This article can also provide a new perspective for pandemic prevention and control in densely populated communities in terms of product design and development.


2022 ◽  
pp. 723-747
Author(s):  
Richard W. Beach ◽  
Blaine E. Smith

Grounded in research-based examples, this chapter provides a resource for students, teachers, and researchers to critically engage with issues of climate change through leveraging the affordances of digital tools. In particular, the authors discuss the affordances and challenges of students using digital tools to address climate change. They also review research in this field, including studies on visualizations, analyzing information, social media, digital videos, digital role-play, video games, and virtual and augmented reality. The chapter describes how digital tools offer meaning-making possibilities for students to propose solutions to climate change through engaging multimodal narratives, as well as share their voices through digital activism. Considering that global climate change is perhaps the most serious problem human beings have ever faced, this chapter offers implications for curriculum and instruction to aid educators with designing digital projects for students to understand climate change and find ways to take a stand.


2017 ◽  
Vol 55 (1) ◽  
pp. 103-124 ◽  
Author(s):  
Kim Moeller

Objectives: This study examines the monetary value of cannabis retail trades and temporal patterns in an open-air market with low legal risks. Method: Video footage detail activities of four sellers and transcriptions were provided by the Copenhagen police. Standard bivariate tests of statistical significance are used to examine the influence of time of day and discretionary activities on trade value and temporal patterns. Results: The average trade was valued at DKK 159 (∼US$24) and DKK 121 when excluding 16 outliers. Both the rate and monetary value of trades increase as the day progresses. Twice as many trades are made hourly after sunset and significantly more in relation to national holidays and on days before days with extreme weather. Conclusion: Under the conditions of low legal risks and easy access to supply, cannabis trades are small and tend to increase in value over the course of a day. The temporal patterns in rates follow user availability of discretionary time.


2017 ◽  
Vol 26 (07) ◽  
pp. 1750107 ◽  
Author(s):  
Raahat Devender Singh ◽  
Naveen Aggarwal

In the wake of widespread proliferation of inexpensive and easy-to-use digital content editing software, digital videos have lost the idealized reputation they once held as universal, objective and infallible evidence of occurrence of events. The pliability of digital content and its innate vulnerability to unobtrusive alterations causes us to become skeptical of its validity. However, in spite of the fact that digital videos may not always present a truthful picture of reality, their usefulness in today’s world is incontrovertible. Therefore, the need to verify the integrity and authenticity of the contents of a digital video becomes paramount, especially in critical scenarios such as defense planning and legal trials where reliance on untrustworthy evidence could have grievous ramifications. Inter-frame tampering, which involves insertion/removal/replication of sets of frames into/from/within a video sequence, is among the most un-convoluted and elusive video forgeries. In this paper, we propose a potent hybrid forensic system that detects inter-frame forgeries in compressed videos. The system encompasses two forensic techniques. The first is a novel optical flow analysis based frame-insertion and removal detection procedure, where we focus on the brightness gradient component of optical flow and detect irregularities caused therein by post-production frame-tampering. The second component is a prediction residual examination based scheme that expedites detection and localization of replicated frames in video sequences. Subjective and quantitative results of comprehensive tests on an elaborate dataset under diverse experimental set-ups substantiate the effectuality and robustness of the proposed system.


2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Khozainul Ulum

In fulfilling the needs, human beings tend to do various ways and always looking for ease. In the context of the fulfillment of economic needs, for example, not everyone can get easy access to be able to get the needs. The purchasing power of each person always refers to the stability of the amount of income earned every day or every month. Therefore, it is not surprising that payment system in transaction of buying and selling that try to make easy for consumer to get what is wanted, that is credit payment. In Islam, payments in credit transactions are known as nasīah. This paper will trace the arguments of the Quran that are related to the payment of sale and purchase on credit.  From the Quranic interpretation of sura al-Baqarah verse 282 and 283 above with respect to the transaction on credit, it can be summarized as follows. First, the transaction on credit in Islam is not forbidden and not makruh. In other words, it is allowed even though the price of goods sold in credit is more expensive than the price in cash. Second, in a transaction on credit, it is ordered to make record and witness to the requierments and conditions of the transaction. The purpose of these records and testimony is to safeguard the rights of each transactor and to avoid disputes in the future. In this case, ulama have difference on the form of such recording and testimonies. One side believes that the order is obligatory (wajib), and the other side thinks it sunnah. According to me, after seeing the purpose of record and testimony of the above transactions, the record and testimony in the transaction is wajib.Third, transaction made in cash (yadan bi yadin), according to the author, is also required to record and testimony. This is a form of caution, because at the moment there are many disputes in transactions that arise in the community, even though they have done the recording and testimony. Fourth, note of treaty and the receipts included in each transaction at the present have an important meaning to safeguard the rights and obligations of each party conducting the transaction. Moreover, note of treaty and receipt are a valid and concrete evidence explaining the truth of the transaction. Keywords: Credit Sale, Quranic Interpertation Approach


Author(s):  
Sulidar Fitri

Children of primary school age today is learning quickly in The use of technological devices that many adult people use such as a mobile phone or laptop connected to the Internet network so it’s provide easy access to an incredible wide world to a variety of sites and applications that are provided in free of charge, Social media technologies indicate social change among children of primary school age in terms of social activities or relationships between human beings. The method of collecting data in this study were collected by observation at the school, in this case also has done an interview to the principal and students of class VI SDN Tugu 3 Gunung Java Cihideung Tasikmalaya, the number of students who were interviewed as a whole amounted to 65 people, this study obtained their personal indication of antisocial child because too preoccupied with social media being used.


2020 ◽  
Author(s):  
Kustiani

Education is important aspect for human beings. Education can be done formally or informally. In Buddhist point of view, education should be done as long as the life of a person. It is done throughout the samsaric journey until someone becomes an enlightened one, becoming a non learner (asekha). In the modern education, various facilities are provided to produce a very good graduate. However this easy access is challenged by the emergence of bad habit of students i.e. copying and pasting data from internet without doing analysis.The solution to this bad habit has to be found because it will cut off the analytical thinking of students. The lack of analytical skill makes student become unproductive in many aspects. As the result, they are not having the ability to think comprehensively, and not having the ability to raise a new idea or to solve the problem correctly. That is why many students are just keeping silent in the class without able to rise or to answer question Human is a being with a higher mind than animal. Human being is called manussa in Pali term. Literally, manussa means “higher mind”. It means that a human being has special ability to understand matter relating to the past, present and future by comparing and contrasting well. This definition also indicates that the mind of human can be developed until its maximum capacity, intellectually or spiritually. This article try to explore some alternatives ways in managing modern education to obtain maximum intellectual and spiritual goal for millennial generations.


2020 ◽  
Vol 10 (2) ◽  
pp. 167-174
Author(s):  
Nadide Gizem Akgülgil Mutlu

Since the term ‘big data’ came to the scene, it has left almost no industry unaffected. Even the art world has taken advantage of the benefits of big data. One of the latest art forms, cinema, eventually started using analytics to predict their audience and their tastes through data mining. In addition to online platforms like Netflix, Amazon Prime and many more, which act on a different basis, the industry itself evolved to a new phase that uses AI in pre-production, production, post-production and distribution phases. This paper researches software, such as Cinelytic, ScriptBook and LargoAI, and their working strategies to understand the role of directors and producers in the age of the digital era in film-making. The research aims to find answers to the capabilities of data-driven movie-making techniques and, accordingly, it makes a number of predictions about the role of human beings in the production of an artwork and analyses the role of the software. The research also investigates the pros and cons of using big data in the film-making industry.   Keywords: Artificial intelligence, cinema, data mining, film-making.


2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Ignatius Adrian Mastan ◽  
Henny Hartono ◽  
Julia Loisa ◽  
Julian Aristo ◽  
Honni Honni ◽  
...  

<pre><em>One way to improve students' academic and non-academic abilities is by taking tutoring. Tutoring is an effort to achieve maximum learning outcomes in accordance with the field of interest. In the era of technological revolution 4.0, we are always demanded to be up to date on their abilities in non-academic / soft skills such as video editing, programming, dance, music, multimedia, etc. Education 4.0 should be able to provide easy access to education and mobility in learning formal and non-formal fields. The application "Yuk Les" brings together the community / students who need private tutoring and people who have abilities in various non-academic fields based on Android. With this application, it is expected to facilitate the public in finding private lessons in accordance with the needs of the field of interest and opening new jobs for the community / students who have abilities in non-academic fields. </em></pre><pre><em> </em></pre>


2018 ◽  
Vol 8 (3) ◽  
pp. 142 ◽  
Author(s):  
Cemil Yurdagül ◽  
Saba Öz

Mobile devices, especially smart phones, are the most frequently used technological devices for daily routines. Mobile devices can be used for various purposes to meet different needs. Since education is a core requirement for human beings, smart phones are being integrated into education. However, it remains to be seen whether they have an impact on learning or not. Consequently, integration of these technologies, or “mobile learning”, has become a popular research study in the field of instructional technology. It is important to investigate the impact of smart phones in language education since students today use them frequently. This attitudinal study aims to investigate the attitude of students in higher education towards smart phone use in the context of foreign language learning. In particular, it gathers information about how smart phones are used for language learning. Participants of the study were 294 prep school students from a well-known university in Turkey. Descriptive study was selected as a research method and mixed-method was the research design for the study. The findings of the study showed that participants care about instant and easy access to information in language learning. In addition to drawing attention to the ease of information access, participants provided suggestions about future applications of smartphones in language learning.


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