• Proceedings of the Korea Information Processing Society Conference
• /
• 2019.05a
• /
• pp.579-582
• /
• 2019

이미지의 특정 객체를 제거할 때, 주변 환경을 고려하면서 제거하기에 어려움이 있다. 본 연구는 특정 객체가 제거되면서 생기는 빈자리를 자연스럽게 보완하기 위해서 이미지 내용을 기반으로 이미지를 변경하는 Seam Carving 알고리즘을 이용하여 보다 자연스러운 결과 이미지를 생성하는 프로그램을 구현했다.

• The Journal of the Acoustical Society of Korea
• /
• v.36 no.2
• /
• pp.136-143
• /
• 2017

In this paper, we propose a method for restoring damaged audio files using deep neural network. It is different from the conventional file carving based restoration. The purpose of our method is to infer lost information which can not be restored by existing techniques such as the file carving. We have devised methods that can automate the tasks which are essential for the restoring but are inappropriate for humans. As a result of this study it has been shown that it is possible to restore the damaged files, which the conventional file carving method could not, by using tasks such as speech or nonspeech decision and speech encoder recognizer using a deep neural network.

• Journal of Korean Clinical Nursing Research
• /
• v.23 no.3
• /
• pp.398-406
• /
• 2017

Purpose: The purpose of this study was to evaluate food carving among hemodialysis patients and to identify factors affecting the food carving. Methods: A descriptive correlational study was conducted. Data were collected from 129 patients receiving hemodialysis between March 15 and April 15, 2017. Measurement instruments included the general food craving questionnaire trait, the center for epidemiological studies-depression scale, and stress response inventory-modified form. The statistical analysis included t-test, analysis of variance, pearson correlation analysis, and stepwise multiple regression analysis. Results: Mean food craving score was $53.00{\pm}12.36$. Food craving was higher in patients younger than 40 years (F=4.36 p=.006) and having occupation (t=2.18 p=.031). Patients receiving hemodialysis demonstrated higher levels of depression ($21.37{\pm}9.62$) and stress ($39.68{\pm}15.95$). Factors influencing food craving were depression (${\beta}=.52$, p<.001), stress (${\beta}=.65$, p<.001), and age 50~59 years old (${\beta}=-.28$, p=.001) and 60~69 years old (${\beta}=-.19$, p=.026), which accounted for 25.6% of total variance. Conclusion: Food craving among hemodialysis patients was influenced by patients' depression, stress and age. Assessment and management of depression and stress needs to be incorporated as a nursing strategy for dietary management for hemodialysis patients.

• Proceedings of the Korea Contents Association Conference
• /
• 2009.05a
• /
• pp.1004-1009
• /
• 2009

Cultural products are created by hand in the overall consumption and high labor costs of a long time, and have the limitations of mass production. A large percentage of handicraft is wax-carving. This technique is difficult to express the small, detailed parts. This part of this to minimize the introduction of CNC system has to work with wax carving. this to CNC system has to work with wax carving minimize the introduction. Increase the accuracy of small and detailed parts. And various design and mass production will be efficient. In so doing, to enable the circulation of cultural products to have prepared.

• Korean Journal of Applied Biomechanics
• /
• v.20 no.3
• /
• pp.319-325
• /
• 2010

The purpose of this research was to investigate the differences in the ski carving turn motion according to level of expertise. The posture and movement of 6 skiers nearby the fall-line was evaluated with a biomechanical approach focusing the rotational mechanics. The slope was at an angle of $9^{\circ}$ and the following variables were measured and calculated: tangential velocity, change of COM height after passing fall-line, width between feet, angle between upper body and thigh, trunk angle, average radius of curvature and average centripetal force. The expert skiers minimized their center of mass height movement and maintained the width of between their feet after the passing the fall-line in comparison with the beginners and intermediate skiers. The experts restrained themselves from pushing their upper body downward after the turn to maximize the centripetal force. The experts in comparison with the beginners and intermediate skiers during the turn didn't have to reduce their radius of curvature to maintain a high centripetal force. It was concluded, that the most important factor affecting the centripetal force, was for the beginners and intermediate skiers, to minimize their movement while using the appropriate amount of edging.

• Fashion & Textile Research Journal
• /
• v.9 no.3
• /
• pp.262-269
• /
• 2007

Traces of ancestors in the era without letters can be found in their legacies and remains such as stone implement, earthenware, dwelling sites, etc. Petroglyph among them reflects their life and spirits as like an epic so that we can be with them through petroglyph. petroglyph is a common culture of mankind, which has been found in various places over the world. The infinite value of traditional culture has a great impact as much as it is unnecessary to more discuss about it. When a culture of a country is reproduced as a world-class product, the country can have visible profits as well as positive effects on diverse fields. The Pangudae petroglyph in Ulsan, consistion of fishery and huntihg religiong, is one of the greatest cultural legacies of the local own uniqueness, and a source and thesaurus of design development. Despite limited tools and unskilled tact, the Pangudae petroglyph Carving shows a strong vital power, which does not change by time, of a whale or a man with various methods such as line and face carving, embossed carving, etc. under a desperate and unconditional purpose, the survival. Thus, the study tries to suggest scarf designs that applies such beauty in fashion design by using the formative beauty caused by natural abrasion through the time, and the feel of lines and stony material.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2010.11a
• /
• pp.159-162
• /
• 2010

본 논문에서는 2D 영상에서 다시점 영상 생성 시 가상 시점을 만드는 과정에서 발생하는 가려짐 영역(occlusion) 보상 기법을 제안한다. 제안된 기법에서는 영상이 가지고 있는 주요한 특성을 유지하면서 가려짐 영역을 보상한다. 기존에 제안되었던 가려짐 영역 보상 방법은 가려짐 영역이 발생한 주변의 화소를 그대로 채워 넣는 방식을 사용하거나 평군값 필터 또는 중간값 필터와 같은 기존의 보상 필터를 이용하기 때문에 시차의 분포 특성을 고려하지 않는다. 따라서 오차는 줄일 수 있으나, 교정된 시차의 정확성은 보장되지 않는다. 본 논문에서 제안하는 가려짐 영역 보상 기법에서는 영상의 주요한 특성을 함께 고려하여 정확성을 높였다. 다양한 영상에 적용하여 제안된 기법의 성능을 테스트하였고, 그 결과 기존의 보상 방법에 비해 가려짐 영역을 비교적 정확하게 보상하는 것을 확인하였다.

• ETRI Journal
• /
• v.35 no.6
• /
• pp.980-989
• /
• 2013

The important requirements for stereo video retargeting are threefold: keeping temporal coherence, preventing depth distortion, and minimizing shape distortions of the retargeted video. To meet these requirements, the left and right video sequences are divided into groups of frames (GoFs), where the GoF is a basic unit for the seam carving and we assign a set of fixed seams for all frames within the GoF. To determine the fixed seams for each GoF, we need to find the GoF boundary in the video first. Then, the representative frame for each GoF is generated by considering the spatial saliency and temporal coherence. Also, the confidence of the stereoscopic correspondence between the left and right frames is considered to prevent depth distortion.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2008.10a
• /
• pp.660-663
• /
• 2008

In this study, it was mainly focused on the mechanism and reliability performances of PI/PET composites after many times of curving. We developed a new process of spacer for flexible display to improve the maintenance of cell gap. This new process used the laser carving technology, which is widely applied on printing press, to produce the pattern of spacers and shaped both of the alignment film and spacers simultaneously by press of pattern. Assembling the spacer-shaped film and plastic substrates together well and it shows an excellent performance on the maintenance of cell gap and reliability of curving.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.14 no.7
• /
• pp.2997-3017
• /
• 2020

With the advancement in the field of image processing, images are being processed using various image processing algorithms. Nowadays, many efficient content-aware image resizing techniques are being used to safeguard the prominent regions and to generate better results that are visually appealing and pleasing while resizing. Advancements in the new display device with varying screen size demands the development of efficient image resizing algorithm. This paper presents a survey on various image retargeting methods, comparison of image retargeting results based on performance, and also exposes the main challenges in image retargeting such as content preservation of important regions, distortion minimization, and improving the efficiency of image retargeting methods. After reviewing literature from researchers it is suggested that the use of the single operator in image retargeting such as scaling, cropping, seam carving, and warping is not sufficient for obtaining satisfactory results, hence it is essential to combine multiple image retargeting operators. This survey is useful for the researchers interested in content-aware image retargeting.