• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2014.10a
• /
• pp.291-292
• /
• 2014

High-speed video transmission modes of master bridge IC are implemented, which supports MIPI (Mobile Industry Processor Interface) DSI (Display Serial Interface) standard. MIPI DSI master bridge IC sends RGB data and various commands to display module (slave) in order to test it. The master bridge IC consists of buffers storing video data of two lines, packet generation block, and D-PHY layer that distributes packets to data lanes and transmits them to slave. In addition, it supports four bpp (bit per pixel) formats and three transmission modes including Burst and Non-Burst (Sync Events, Sync Pulses types). The designed bridge IC is verified by RTL simulations showing that it functions correctly for various operating parameters.

• The Journal of the Korea Contents Association
• /
• v.19 no.9
• /
• pp.550-557
• /
• 2019

The Film Development Fund was established in 2007 to improve the quality of film arts and promote the Korean film and video industry. As a key resource operated by the Korean Film Council, the film development fund provides various projects including support for the promotion of Korean film creation and production, funding in video-specialized investment associations, export and international exchanges of Korean films, and production of small-scale or short films. This study aims to propose ways to reinvent the film development fund, which is in danger of being depleted. Based on such purpose this study examined the status and problems of the current film development fund and reviewed previous literatures and related discussions. Furthermore, the policies of similar overseas organizations for film promotion including French National Film/Video Center (Centre National du Cinema et de l'image $anim{\acute{e}}e$, CNC) and the British Film Institute (BFI) were reviewed to draw a multi-faceted way to replenish the source of revenue for Korean film development fund.

• Journal of the Korea Computer Industry Society
• /
• v.2 no.3
• /
• pp.329-340
• /
• 2001

Video server which stores video streams should serve more users with the requested streams rapidly, satisfying their time constraints. For this objective, the storage system of the video server needs large disk bandwidth and buffer capacity. But, because given disk bandwidth and buffer capacity are limited, technologies that utilize effectively the given disk bandwidth and buffer capacity without waste might be needed. In this paper, we propose the policies that not only reduce the startup latency but also, support more users by utilizing the disk bandwidth and buffer efficiently, which also considering time constraint characteristics of video stream. In order to reduce the startup latency of the service requests, it inducts the effect of random access of disk head by moving asynchronously disk heads in multiple disk environments. Also, there are two technologies to support more users. First, the proposed policy reduces the seek latency by moving the disk head sequentially so that it saves the disk bandwidth. Second, it determines the segment size through considering both given buffer capacity and given disk bandwidth by heuristic approach in order to overcome the constraints of the number of streams supported due to limitation of buffer capacity. The segment size makes it utilize given buffer optimally with given disk bandwidth. The correctness of the proposed policies is not only analyzed theoretically but also evaluated through simulations.

• Journal of the Institute of Electronics Engineers of Korea CI
• /
• v.46 no.5
• /
• pp.37-43
• /
• 2009

Streaming video service over wireless and mobile communication networks has received significant interests from both academia and industry recently. Specifically, mobile WiMAX (IEEE 802.16e) is capable of providing high data rate and flexible Quality of Service (QoS) mechanisms, supporting mobile streaming very attractive. However, we need to note that streaming videos can be partially deteriorated in their macroblocks and/or slices owing to errors on OFDMA subcarriers, as we consider that compressed video sequence is generally sensitive to the error-prone channel status of the wireless and mobile network. In this paper, we introduce an OFDMA subcarrier-adaptive mobile streaming server based on cross-layer design. This streaming server system is substantially efficient to reduce the deterioration of streaming video transferred on the subcarriers of low power strength without any modifications of the existing schedulers, packet ordering/reassembly, and subcarrier allocation strategies in the base station.

• Information Systems Review
• /
• v.25 no.3
• /
• pp.121-138
• /
• 2023

The advancement in mobile technology brought disruptive innovation in media industry. The introduction of mobile devices broke spatial and temporal restrictions in media consumption. This study investigates the impact of mobile channel adoption on video viewing behavior, using real-world dataset obtained from a particular on-demand service provider in South Korea. We find that the adoption of a mobile channel significantly increases the total viewing time of video-on-demand via TV and the number of contents viewed. Our results suggest that the mobile channels act as a complement channel to conventional TV channels. We provide theoretical and practical insights on consumer usage in the emerging over-the-top market.

• Journal of Korea Entertainment Industry Association
• /
• v.13 no.5
• /
• pp.119-126
• /
• 2019

Watching movies is common on a big screen like a theater or on a big-screen TV. nowadays, small platform such as mobile devices is increasing rapidly for watch a movie. These changes are deeply related to the advent of Internet-based video streaming services such as OTT. OTT's development has provided in free video viewing system without using the set-top box is free from the limitations of time and space. Leading the market is Netflix[1], which started its business with Internet-based DVD rental service. Netflix, which is growing in tandem with the mobile market, had 193.26[2] million members as of the end of 2018. Other OTT participating companies include content-based Pooq, TVing, platform-based Olleh TV Mobile, Oksusu and LTE video portal. The size of such new growth projects has grown gradually, with 25.4 percent of all smartphone users currently watching video content with small mobile devices. Therefore, de-largeization, it is thought that visual language is needed for viewing small mobile devices that are capable of OTT services. To this end, this paper will identify the problem in viewing popular video content with small mobile devices and Survey and study its impact on viewers using the questionnaire.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.7 no.2
• /
• pp.147-159
• /
• 2011

In this paper the demand and supply of labor are forecasted over the next 10 years for customized nurturing human resource focused on Manufacturing Industry in Chung-Nam Province. Despite that the industrial structure is rapidly changing, industrial labors are nurturing on the basis of past industrial structure. This research is conducted for reducing mismatched labors throughout forecasting human resources until 2020. As a practical approach, the BLS Methodology is partially utilized. And the previous researches and official statistics data are reviewed. In conclusion, this study presents that more human resources on Manufacturing Industry than other Industries will be needed in Chung-Nam province. In details, it shows that there will be required more Industrial labors for strategic industries for examples, Audio and Video related industry, and Car related industry which is propelling by overall local government. In additions, policy implications are developed by analyzing current status and forecasting the labor demand and supply in the Chung-Nam Manufacturing sector.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.10 no.6
• /
• pp.2483-2503
• /
• 2016

Traffic congestion is a severe problem in many modern cities around the world. Real-time and accurate traffic congestion identification can provide the advanced traffic management systems with a reliable basis to take measurements. The most used data sources for traffic congestion are loop detector, GPS data, and video surveillance. Video based traffic monitoring systems have gained much attention due to their enormous advantages, such as low cost, flexibility to redesign the system and providing a rich information source for human understanding. In general, most existing video based systems for monitoring road traffic rely on stationary cameras and multiple vehicle tracking method. However, most commonly used multiple vehicle tracking methods are lack of effective track initiation schemes. Based on the motion of the vehicle usually obeys constant velocity model, a novel vehicle recognition method is proposed. The state of recognized vehicle is sent to the GM-PHD filter as birth target. In this way, we relieve the insensitive of GM-PHD filter for new entering vehicle. Combining with the advanced vehicle detection and data association techniques, this multiple vehicle tracking method is used to identify traffic congestion. It can be implemented in real-time with high accuracy and robustness. The advantages of our proposed method are validated on four real traffic data.

• Proceedings of the Korea Contents Association Conference
• /
• 2006.11a
• /
• pp.520-523
• /
• 2006

Lately, development of multimedia industry has multimedia data serviced through various wire wireless communicating environment. These multimedia data is displayed on the device of various sizes such as mobile telephone, PDA, notebook, PC. Therefore, there has needed to resize multimedia data appropriate to the screen size of user's display device. In this paper, we propose the method to resizing H.264 videos sequence fitting to the screen size of user's display device. The existing most methods reduce the size of video sequence, but this paper proposes the upsampling method. The results show the proposed method upsamples video sequences without blocking effects.

• Journal of the Korea Computer Industry Society
• /
• v.8 no.1
• /
• pp.1-8
• /
• 2007

In this paper, teaching object-oriented design in a programming course is a big challenge for instructors. "Objects-first" is a popular strategy for teaching object-oriented programming in the educational settings, by introducing the concepts of objects, classes, and instances before procedural elements of a programming language. Still, this approach emphasizes coding rather than other critical aspects of software development, notably problem-solving and design. We propose a "design-first" approach, which subsumes an objects-first approach into lessons that also introduce object-oriented analysis and design, using elements of UML before implementing any code. We also present video rental store (SRS) that uses the design-first approach to help students of various teaming styles in a software engineering course. It interfaces with an IDE we have chosen specifically to support the design-first approach, and SRS which has been shown to be effective in helping students learn object-oriented programming concepts.