Development Of Multimedia Systems Research Articles

Blind Quality Assessment of Dense 3D Point Clouds with Structure Guided Resampling

Objective quality assessment of three-dimensional (3D) point clouds is essential for the development of immersive multimedia systems in real-world applications. Despite the success of perceptual quality evaluation for 2D images and videos, blind/no-reference metrics are still scarce for 3D point clouds with large-scale irregularly distributed 3D points. Therefore, in this article, we propose an objective point cloud quality index with Structure Guided Resampling (SGR) to automatically evaluate the perceptually visual quality of dense 3D point clouds. The proposed SGR is a general-purpose blind quality assessment method without the assistance of any reference information. Specifically, considering that the human visual system is highly sensitive to structure information, we first exploit the unique normal vectors of point clouds to execute regional pre-processing that consists of keypoint resampling and local region construction. Then, we extract three groups of quality-related features, including (1) geometry density features, (2) color naturalness features, and (3) angular consistency features. Both the cognitive peculiarities of the human brain and naturalness regularity are involved in the designed quality-aware features that can capture the most vital aspects of distorted 3D point clouds. Extensive experiments on several publicly available subjective point cloud quality databases validate that our proposed SGR can compete with state-of-the-art full-reference, reduced-reference, and no-reference quality assessment algorithms.

ЗАСТОСУВАННЯ ІНФОРМАЦІЙНИХ ТА КОМУНІКАЦІЙНИХ ТЕХНОЛОГІЙ ДЛЯ АКТИВІЗАЦІЇ ПІЗНАВАЛЬНОЇ ДІЯЛЬНОСТІ СТУДЕНТІВ ПРИ ВИВЧЕННІ АСТРОНОМІЇ

In the context of the active development of telecommunications, multimedia and information systems, as well as the process of modernization of higher education in Ukraine, the use of information and communication technologies in astronomy classes becomes important. In the modern education system, there is a need to review and update outdated methods, techniques, and forms of education, especially in view of the widespread use of information and communication technologies. This need is due to the transition to a more active use of technologies to transfer information and support interaction between teachers and students, especially in the context of open and distance education systems. the introduction of new educational technologies, in particular ICT, provides a flexible and diverse set of technological tools, promotes problem-solving skills in students, provides an opportunity to develop critical thinking and effective information processing skills, encourages active independent, autonomous, and joint study of astronomy, motivates and facilitates the study of science, enhances teacher training.

Natural-Language-Driven Multimodal Representation Learning for Audio-Visual Scene-Aware Dialog System.

With the development of multimedia systems in wireless environments, the rising need for artificial intelligence is to design a system that can properly communicate with humans with a comprehensive understanding of various types of information in a human-like manner. Therefore, this paper addresses an audio-visual scene-aware dialog system that can communicate with users about audio-visual scenes. It is essential to understand not only visual and textual information but also audio information in a comprehensive way. Despite the substantial progress in multimodal representation learning with language and visual modalities, there are still two caveats: ineffective use of auditory information and the lack of interpretability of the deep learning systems' reasoning. To address these issues, we propose a novel audio-visual scene-aware dialog system that utilizes a set of explicit information from each modality as a form of natural language, which can be fused into a language model in a natural way. It leverages a transformer-based decoder to generate a coherent and correct response based on multimodal knowledge in a multitask learning setting. In addition, we also address the way of interpreting the model with a response-driven temporal moment localization method to verify how the system generates the response. The system itself provides the user with the evidence referred to in the system response process as a form of the timestamp of the scene. We show the superiority of the proposed model in all quantitative and qualitative measurements compared to the baseline. In particular, the proposed model achieved robust performance even in environments using all three modalities, including audio. We also conducted extensive experiments to investigate the proposed model. In addition, we obtained state-of-the-art performance in the system response reasoning task.

Visualisasi SD N 47 Kota Bengkulu Berbasis 3D Dengan Menggunakan Teknik Chrome Key Dan Sketchup

Profile video is an electronic medium to convey information that is very effective in introducing a school. Through this visual media, all information can be easily digested by all circles of society. State Elementary School 47 Bengkulu City, Mem needs promotional media to the community to increase the admission of new students. Based on this, then to do the promotion, a profile video of Sekolah Dasar Negeri 47 bengkulu city was made. In making this video, Sketchup software and enscape are used to make it easier to create profile videos. The purpose of the research is to make a 3D animated video as a promotional medium at Sekolah Dasar Negeri 47 Bengkulu City. Research methods through multimedia system development models using Luther Sutopo's Multimedia Development Life Cycle (MDLC). The research was carried out as a promotional medium through 3D animated videos using the sketchup application. The respondent's due diligence test received a response of 87.5%, which means that the video profile that was made is liked by the general public.

Proposal to Conceive Multimedia Systems from a Value Creation Perspective and a Collaborative Work Routes Approach

Methodologies for the development of interactive multimedia systems traditionally apply the practices and lifecycles of user-centred design in conjunction with usability and accessibility practices guided by software engineering process models. This work contributes to the conception of multimedia systems through a new way of working using a set of work routes encouraging collaborative work. This new approach to conceive multimedia systems is centred on value creation and value-sensitive design, through a formal characterisation based on theoretical foundations. The results obtained from an evaluation of this definition, using a case study in an academic context, show that our scheme facilitates the conception and planning of factors such as the interactive multimedia experience and the responsible design of the solution.

A New Efficient Architecture for Adaptive Bit-Rate Video Streaming

The demand for multimedia content over the Internet protocol network is growing exponentially with Internet users’ growth. Despite high reliability and well-defined infrastructure for Internet protocol communication, Quality of Experience (QoE) is the primary focus of multimedia users while getting multimedia contents with flawless or smooth video streaming in less time with high availability. Failure to provide satisfactory QoE results in the churning of the viewers. QoE depends on various factors, such as those related to the network infrastructure that significantly affects perceived quality. Furthermore, the video delivery’s impact also plays an essential role in the overall QoE that can be made efficient by delivering content through specialized content delivery architectures called Content Delivery Networks (CDNs). This article proposes a design that enables effective and efficient streaming, distribution, and caching multimedia content. Moreover, experiments are carried out for the factors impacting QoE, and their behavior is evaluated. The statistical data is taken from real architecture and analysis. Likewise, we have compared the response time and throughput with the varying segment size in adaptive bitrate video streaming. Moreover, resource usage is also analyzed by incorporating the effect of CPU consumption and energy consumption over segment size, which will be counted as effective efforts for sustainable development of multimedia systems. The proposed architecture is validated and indulged as a core component for video streaming based on the use case of a Mobile IPTV solution for 4G/LTE Users.

Performance Analysis for ECG Signals Using Data Warehouse Architecture

With the development of multimedia and digital systems there is a need to reduce the cost of storage and transmission of information. The storage requirements for long signals like 24-hour heart monitoring are very large so signal compression is often employed. The cost reduction achieved through compression leads to a reduction in the amount of data that represents the information. At the same time, once the decompression procedure is done, the resulting signal must contain enough detail for the cardiologist to be able to identify irregularities. “Lossy” compressors may hide such details, whereas “lossless compressors preserve the signal exactly as captured. So, different lossless compression techniques such as RLE, Huffman, LZW etc., are evaluated not only in terms of compression ratio and compression and decompression bandwidths achieved but also based on their performance when the compressed data must be sent over any of the available wireless networks. The project aims at researching and developing a data compression model for transmitting medical signals. The model should be feasible and it should prove the advantages of data compression. These implementations are intended to be used within a larger system allowing a patient to transmit medical data from a remote location.

Secure Tensor Decomposition for Heterogeneous Multimedia Data in Cloud Computing

With the rapid development and proliferation of multimedia systems and applications, there is a growing need to handle multimedia heterogeneous data safely and efficiently on the cloud. Tensor models are effective in representing multimedia multidimensional data, and the tensor decomposition is one of the basic building blocks of data analysis and learning models. In this article, we propose a secure tensor singular value decomposition ( ${S}$ -tSVD), in which the time-domain operation is converted into a scheme featuring frequency-domain multilinear circular unfolding–folding. First, we represent various multimedia data as cipher subtensors, using fully homomorphic encryption. We then take the fast Fourier transform (FFT) approach to launch a new multiplication operation along the tubal fibers of a unified high-order tensor. Second, relying on the homomorphism of addition and multiplication theory, we prove the fully homomorphic consistency of the proposed ${S}$ -tSVD algorithm. Third, we provide an elegant solution to tackle the typical dimensionality inconsistency problem while working with multiple subtensors. Finally, we carry out theoretical analyses with respect to dimensionality reduction, reconstruction error of ${S}$ -tSVD, running time, and data security. We use real unstructured video data and semistructured XML documents, integrating them within a unified tensor model for decomposition. We demonstrate that the error ratio of the ${S}$ -tSVD is lower than the same compression ratio compared to the SVD decomposition and tSVD-slice approaches. Moreover, the specific ${S}$ -tSVD decomposition not only enables effective data mining and dimensionality reduction but also ensures the accuracy of the decomposition result and data privacy protection.

Aplikasi Profil Perusahaan Digital Berbasis Web

Alternatives to promoting companies with a variety of products, besides being able to reduce paper use which has an impact on promotion costs, and creating a wider market, are the main reasons why this research was conducted. There are two types of websites that can be used in business development, namely online store websites and company profile websites. The purpose of digital company profiles is to display company profiles and build credibility in cyberspace. Digital company profile does not bring revenue directly like online store websites, but digital website-based company profiles become a more accurate and trusted source of information. Through a digital company profile, a better business image can be built and entrepreneurs can show the world that the goods and products offered are of good quality. This digital company profile is a promotional media campaign that is more effective and efficient. Website-based Digital Company Profile application, as a means of promotion, is made with the Design and Development of Multimedia Systems that integrate its components. The end result of this application is in the form of files that can be applied in the form of a disk and uploaded on the website.

PENGEMBANGAN SISTEM MEMBACA AL-QUR’AN DENGAN METODE MULTIMEDIA DEVELOPMENT LIFE CYCLE

Al-Qur'an is the Holy Book which is the main and first source in Islamic teachings. It is important for us as Muslims to learn about how to read the Qur'an properly. This research uses two method approach namely Multimedia System Development method and learning method used is to use Tartil method. By using this two-method approach it is hoped that it will be more interesting for students to read and be able to accelerate how to read the Qur'an properly. The results of this research are in the form of an android-based application that can help to learn and read the Al-Qur’an properly. This application is tested using the Black Box method that shows all functions are running properly 100% according to what is expected.. The results show 85% progressed after using the application and only 15% did not progress.

ІНФОРМАЦІЙНІ ТЕХНОЛОГІЇ ІНТЕНСИФІКАЦІЇ І ПІДВИЩЕННЯ ЯКОСТІ КОМП’ЮТЕРИЗОВАНОГО НАВЧАННЯ

The article the shows problem of using multimedia complex in teaching students of military training Department of the artillery weapons and munitions, examples of multimedia elements: devices, actions, samples of artillery weapons and ammunition on the basis of which conclusions about the effectiveness of its application. Describes the General block diagram of elements of a multimedia training complex, and the material features of the used constituent partsRecommendations for the development, effective use and implementation of multimedia systems in educational process of students of the Department of military training of Sumy state University.

Application of GIS technology in the construction of urban traffic sharing multimedia information platform

With the gradual maturity of geographical multimedia information system, applying geographical multimedia information system to urban intelligent traffic management information system and urban traffic sharing information platform can realize unified management and real-time update of traffic information. Through the urban traffic sharing information platform, it can increase the value of information. The multimedia information of the entire intelligent traffic management system can be stored, organized and processed by the shared multimedia information platform. It can more effectively ensure the correctness, comprehensibility and avoid redundancy of data relationships. Then it improves the utilization and transmission speed of multimedia information in the system. The urban traffic multimedia information management system has improved the use efficiency of urban road construction in China. And it also made the traffic multimedia information system more scientific and intelligent. It can also improve its management level and play an important role in urban traffic management. This paper first briefly analyzes the current traffic situation and the development of intelligent traffic multimedia information system in China. The basic concepts of GIS and urban intelligent transportation system based on GIS are introduced secondly. At last, the possibility about GIS as urban intelligent traffic management system sharing multimedia information platform is analyzed. The system framework and the basic function of GIS platform are put forward, and the application of GIS in urban traffic common information platform using the key technical support was discussed. It expounds the application of GIS in urban traffic common multimedia information platform.

Designing instructional multimedia system for scout activities

The name for members of organizations engaged in education scouting in Indonesia is Pramuka. This research is aimed at designing an instructional multimedia system for scot activities as an effort to support character development of young generation. To this end, this research used a multimedia system development method that consisted of the following stages: Concept, Design, Material Collecting, Assembly, Testing, and Distribution. The system testing was conducted using black box on all instructional systems. The result revealed that the built functions were in accordance with the design and could run on Android-based smartphones. This research came into a conclusion that the instructional system for scout in question could work effectively and efficiently on mobile devices.

The Development of Multimedia and Interactive System, through Network for Learning in Opportunities School

This research focused on the development of multimedia and interactive system, through network for learning in the opportunities school. This system was used as a channel for students to learn outside the classroom and as a teaching management tool for teachers. Tools for system development were Microsoft Visual Studio program while the database management system was MySQL. PHP and Java scripts were for writing commands. To evaluate the efficiency of the developed system, sample group and questionnaires were processed. The population of this research was a group of teachers and students of the Bankamwa school (Weboonratsamakee) in total of 97 people. The result of experiment shows that group recognizes the performance of system in the higher level and the system is efficient for its purposes.

Motion-compensated frame interpolation with weighted motion estimation and hierarchical vector refinement

Large amounts of data have been gathered by techniques such as mobile devices, remote sensing and cameras. With the rapid development of high-definition digital TV and multimedia information systems, motion-compensated frame interpolation (MCFI) has become a widely used tactic for frame rate up-conversion (FRUC) to improve the visual property of video. In this paper, we propose a novel MCFI algorithm based on weighted motion estimation (Weighted ME), motion vector (MV) segmentation, and hierarchical vector refinement. We first present an MV clustering based on the Weighted ME to obtain more accurate MVs and partition a frame into moving areas and background. To capture scene changes, we then apply a hierarchical vector refinement scheme to the moving areas that consists of three steps: pre-screening, reclassification, and smoothing. In this scheme, we use an overlapped block ME (OBME) method that uses multi-candidate pre-screening to discover unreliable MVs and protect the moving area edge structures from being damaged. We then employ the bidirectional prediction difference (BPD) to identify outliers using strong correlation with adjacent blocks. Meanwhile, an adaptive vector median filter (AVMF) is adopted to refine the block size, which can effectively smooth blocking artifacts and ghost effects. Experiments show the algorithm achieves a high image quality both subjectively and objectively. In particular, it has a good adaptability in video sequences with fast motion and complex backgrounds.

Experimental Studies on Electronic Portfolios in Turkey: A Literature Review

In this study, a literature review was conducted about an individual’s selected efforts, products stored in electronic format, and electronic portfolios that reflect the development and capacity of multimedia systems. In this context, relevant experimental studies performed in Turkey are collected to show e-portfolio application forms, their development, and to provide information about current activities for the use of e-portfolios. When the results of studies on e-portfolios are examined, it was determined achievement, attitude, creativity skills, application skills, etc. about e-portfolio application users caused an increase in the positive direction in many variables to reveal various features of e-portfolios. Users’ opinions have been positive.

Complexity Analysis and Critical Factor Identity in Multimedia Social Systems

The rapid development of multimedia social systems makes the exchange and the share of the information between users more and more convenient. At the same time, it also makes that the multimedia social systems have complexity characteristic. Hence the traditional object-oriented analysis methods have been not able to suit this kind of saturation. This paper analyzes the complexity of social multimedia systems and proposes that the complexity performance of multimedia social systems includes the structure level, interactive behaviors and behavioral unpredictability. We also take an example to explain the shortcomings of the traditional object-oriented analysis method for solving the analysis and the design of complex systems. Based on this complexity analysis, we introduce the information entropy and propose an evaluation method for identifying the core and potential factors which have important influence on the operation of the whole multimedia social system. Finally, some simulation experiments and result analysis are given to our proposed framework. Both theoretical analysis and numerical simulations show that the proposed framework is a simple and effective new method to find out the core components within this kind of multimedia social system. The new program could realize a good user platform for achieving a high security and meanwhile meeting the user terminal platform privacy protection requirements. Therefore, this paper presents a new method to improve the security of multimedia social systems.

Evolution of temporal multimedia synchronization principles

The evolution of multimedia applications has drastically changed human life and behaviors. New communication technologies lead to new requirements for multimedia synchronization. This article presents a historical view of temporal synchronization studies focusing on continuous multimedia. We demonstrate how the development of multimedia systems has created new challenges for synchronization technologies. We conclude with a new application-dependent, multilocation, multirequirement synchronization framework to address these new challenges.

Pengembangan Model Perangkat Ajar Berbasis Animasi: Studi Kasus Mata Ajar Biologi pada SMP Yaspia dan SMK Bina Manajemen Cakung Jakarta Timur

Use of the Internet at schools grows advanced. Therefore, teachers need to learn the use of technology in creating good teaching materials (learning objects) such as animation-based materials. Those materials will result will in a component in a learning system that allows students to interactively learn and evaluate themselves against the subject mastery. A tool for creating such an animated material like Powerpoint produces presentations enhanced with audio and video that allows students to comprehend the lessons more easily. The model system uses interactive multimedia system design and development with the following phases: (1) system requirements, (2) design considerations, (3) implementation, (4) evaluation. While user interface design principles uses eight golden rules of interface design. As a test case, selected Biology at Yaspia junior high school and Bina Management vocational school. From the results it can be concluded that this application module can support students in obtaining the required data completeness. The tutorials are quite sufficient to facilitate students in understanding the material.

A New Channel Borrowing Database Algorithm in Multimedia LEO Satellite Communications

LEO satellite networks are going to play an indispensable role in the development of ubiquitous broadband multimedia systems because of their some attracting characteristics such as low power dissipation, low propagation delay and more efficient spectrum allocation due to frequency reuse between satellites and spotbeams. So they are considered to be the replacement of terrestrial wireless networks. But as the speed of LEO satellites is high relative to the terrestrial mobile networks which moves at lower speed but at more random directions. As a result the number of handover occurrence is very frequent in LEO networks. To overcome these problems a suitable bandwidth allocation strategy along with connection admission control technique must have to be followed. Scientists have proposed many strategies but none can fulfil all the requirements. Here we have proposed a new channel borrowing database algorithm for the channel borrowing strategy. Simulation results shows that our proposed method has less call dropping probability and a better fairness index.