• Trans-
• /
• v.3
• /
• pp.1-28
• /
• 2017

As the field of film aesthetics expands, the concept of classical the mise-en-scene expands too its scope. This paper examines the concept of mise-en-scene through spatial connections. The primary goals of this study are understanding the relation between the frame and the shot, the continuity between the scene and the sequence, and the aesthetic dimension to the plan-sequence. In modern cinema theory, the elements of mise-en-scene are more emphasized in terms of efficiency, but this study is concerned that the classical aesthetic system is still important. To this end, we examine the concept of plan-sequence, which was called the best technique of past visual realism aesthetics, is utilized in digital cinema. Finding significance for the modern use of plan-sequences is a secondary goal of this paper and we expect it to be a stepping stone to search for the aesthetics of digital cinema. The plan-sequence is one of the important factors that can be evaluated in the preparation and application of the event for the movie director. In the real world where the film itself is used commercially, digital film will have a conceptual tool that can utilize allegorics of 'geopolitical unconsciousness' through plan-sequences.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.31 no.5
• /
• pp.1001-1010
• /
• 2021

Smart factories are complex systems which combine latest information technology (IT) with operation technology (OT). A smart factory aims to provide manufacturing capacity improvement, customized production, and resource reduction with these complex technologies. Although the smart factory is able to increase the efficiency through the technologies, the security level of the whole factory is low due to the vulnerability transfer from IT. In addition, the response and restoration of the business continuity plan are insufficient in case of damage due to the absence of factory security experts. The cope with the such problems, we propose an information security practice content for analyzing the damage by generating ransomware attacks in a digital twin-based smart factory similar to the real world. In our information security content, we introduce our conversion technique of physical devices into virtual machines or simulation models to build a practical environment for the digital twin. This content generates two types of the ransomware attacks according to a defined scenario in the digital twin. When the two generated attacks are successfully completed, at least 8 and 5 of the 23 virtual elements are take damage, respectively. Thus, our proposed content directly identifies the damage caused by the generation of two types of ransomware in the virtual world' smart factory.

• Journal of Broadcast Engineering
• /
• v.20 no.2
• /
• pp.265-272
• /
• 2015

A new technology on video frame rate up-conversion (FRUC) is presented by combining the median filter and motion estimation (ME) with an occlusion detection (OD) method. First, ME is performed to have a motion vector. Then, the OD method is used to refine motion vector in the occlusion region. Since the wrong motion vector can be obtained with high possibility in the occluded area, a median filtering that less depends on the motion vector is applied to that area, and since the motion vector is continuous and robust in the non-occluded area, BDMC(Bi-Directional Motion Compensated interpolation) is applied to obtain interpolated image in that area. BDMC using the bi-directional motion vectors achieves good results when continuity and robustness of the motion vector is higher. Experimental results show that the proposed algorithm provides better performance than the conventional approach. The average gain of PSNR (Peak Signal to Noise Ratio) is approximately 0.16 dB in the test sequences compared with BDMC.

• Journal of the Korea Convergence Society
• /
• v.11 no.1
• /
• pp.131-139
• /
• 2020

Gamers switch their games to a new when get bored or encounter more attractive ones. Switching cost varies by gamers and depends on how they are satisfied with their current game. This study evaluates the satisfaction with current games as the miltiple basic psychological need in the self-determination theory and suggests 'needs-costs' causality research model that explain the variety of gamer's switching behavior. As the empirical test to domestic mobile gamers, the autonomy fulfillment to current game affect reversely with those of autonomy and relatedness. Those relationships between need satisfaction and perceptual switching cost vary according to their age and game genre preference. The results would be applied to understand gamers' switching behavior.

• Journal of Digital Contents Society
• /
• v.10 no.3
• /
• pp.381-388
• /
• 2009

This paper proposes a denoising method for the contour edges and crease edges of silhouette obtained from 3D scanned data of stone cultural heritages. It is often the case that the silhouette involves noise in the form of short-length line segments, due to rough surfaces of stone cultural heritages, weathering, and technical difficulties arising in data acquisition. Thus the removal of the short-length line segments from the contour edges and crease edges can result in a clear and accurate silhouette. An efficient computational algorithm is introduced to count the continuity of line segments; edges having not more than 3 line segments are removed. It has been verified that the new method is more effective than threshold-based silhouette extraction methods for stone heritages. Our method is applicable for various other data which are deteriorated by short-length line segments.

• Journal of Digital Convergence
• /
• v.14 no.1
• /
• pp.33-42
• /
• 2016

The purpose of this study was to analyze a case of school change according to the free semester policy and provide its suggestions for the entire implementation of the policy in 2016. For the study, a middle school case was examined qualitatively. The main results are as follows: First, the structural change and psychological change should be simultaneously implemented in order to bring out overall school change. Second, the free semester should be focused on either teaching and learning improvement or career experience by having concrete action plans. Third, school stakeholders' trust and expectation should be improved by the consistency and continuity of the policy, and local educational authorities should reduce teachers work load as well as unnecessary works from the other areas besides teaching.

• Journal of Digital Convergence
• /
• v.8 no.1
• /
• pp.1-10
• /
• 2010

Since 2004, the Korean government has been engaged in u-IT new technology verification projects in an effort to level up the industries. Recently, cases are reported that RFID/USN technology has been adopted and applied to business processes, mainly by large enterprises. However, further policies and support for the industries have been restrained because of unavailability of essential data for policy making. Therefore, the study examined the level of satisfaction among the actual recipient organizations from the 27 pilot projects to draw implications from the study result. Accordingly, the level of satisfaction was assessed in four project phases from RFID/USN building, utilization (technical quality), utilization (business quality), to maintenance. The study result showed that the technical stability reached a significant level but the level of satisfaction in the maintenance phase for the utilization and proliferation of the technology remained at the lowest. It suggested that a more specified policy support is needed in the maintenance phase to include inexpensive supply of tags and devices, a maintenance establishment of consortium to maintain reliability and continuity of service, strengthening internal competence of the beneficiary organizations for utilization of RFID/USN.

• Journal of Digital Convergence
• /
• v.16 no.10
• /
• pp.79-87
• /
• 2018

In this study, the evaluation index was developed to design the project evaluation model, and the weight was given through the AHP survey. project was evaluated for the first time by using the designed evaluation model for the field appraisal. As a result, it was revealed that the weight of the propriety index of the participant effect and the project content was the highest among 20 indexes. This study is significant in having built a base on which the evaluation system could be stabilized, by developing the integrative project evaluation model of . However, we have yet to adequately address the evaluator's acceptability and efficacy in evaluating indicators. The validity and continuity of the evaluation model will be secured through this.

• Journal of Digital Contents Society
• /
• v.9 no.3
• /
• pp.483-490
• /
• 2008

In this paper, we propose an active location acquisition terminal needing to construct an infrastructure based on a LBS and analyze the performance in real field. The proposed terminal is compounded with a GPS module and a CDMA module, so it can get the location information independently using satellite GPS signal and the proposed terminal can decide a user location with the location information of a base station in satellite GPS shadowed area. This is the distinguishable location acquisition method from the conventional A-GPS, and it complements a disadvantage of the conventional GPS. From these results, we can confirm that the proposed active location acquisition terminal is suitable to the requirements for the LBS which are the independent location acquisition ability, the continuity in the location information acquisition and the maintenance in the location information security.

• Journal of Digital Convergence
• /
• v.19 no.9
• /
• pp.349-360
• /
• 2021

The purpose of this study is to verify whether social support for single parents in leisure, culture, and info-communication areas has the moderating effect on the impact of stress situations on academic continuity in single parents. To this end, technical statistics and logistic analysis were conducted on 248 single parents who were pregnant or pregnant at the age of 18 or older and raised their children after childbirth. As a result, one out of every four beneficiaries were involved, increasing the possibility of academic continuation by adjusting the stress-induced tendency of single parents to stop studying due to leisure, culture, and information and communication expenses. These results show that leisure, culture, and information and communication support are effectively contributing to improving the academic sustainability of single parents who want to stop studying due to stress relief and stress. Therefore, it is necessary to strengthen leisure, culture, and social support in the information and communication sectors for the academic continuation of single parents of teenagers.