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Choi, Chul Young
- International journal of advanced smart convergence
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- v.10 no.3
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- pp.157-162
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- 2021
With the recent increase in YouTube content, many YouTubers are shooting with a handheld camera. Audiences are increasingly accustomed to the movement of handheld cameras. As the camera moves faster than the camera movement of the old movies, and the camera moves splendidly to the music of the music video, the camera movement in CG animation is also needed to change. The handheld Steadicam creates a natural camera movement by compensating so that the screen does not vibrate significantly even when the vibration is large and by minimizing rotation. In order to implement such camera movement, we tried to make a handheld Steadicam using nParticle simulation of Maya software and apply it to the scene to verify whether it is possible to implement the necessary natural and various movement.
https://doi.org/10.7236/IJASC.2021.10.3.157 인용 PDF KSCI

Kim, Young-Joong;Lee, Hyun-Yup
- Journal of the Society of Naval Architects of Korea
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- v.49 no.2
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- pp.146-150
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- 2012
Free vibrations of strings due to initial conditions have been analyzed by the conventional mode summation method, and the nondimensionalized displacements and velocities have been derived in the form of infinite series. The results show wave propagating phenomena and confirmed by experiments using the high speed camera. Other physical characteristics have been discussed and examined with help of waveform solutions.
https://doi.org/10.3744/SNAK.2012.49.2.146 인용 PDF KSCI

Hong, Jung-Taek;Lee, Kye-Young;Lee, Sang-Hun;Han, Song-Soo;Chung, Jin-Tai
- Transactions of the Korean Society for Noise and Vibration Engineering
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- v.16 no.5 s.110
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- pp.514-520
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- 2006
In this study, the performance of a digital pile rebounding and penetration monitoring system (DPRMS) is evaluated and the measurement precision of the DPRMS is improved. The DPRMS is a high speed line-scanning camera system to measure the rebound and penetration of a pile in a construction work. A main problem in the DPRMS is a measurement error, which is caused by a shock or vibration due to a hammer impact. The measurement error is investigated by analyzing vibration signals of the DPRMS during the impact. Moreover, the frequency response functions of the DPRMS are also analyzed. As a result, it is found that the tripod height has an influence on the DPRMS performance and a shorter tripod is better. One more founding in this study is that the DPRMS should be placed with a appropriate distance from a pile for improving the measurement precision.
https://doi.org/10.5050/KSNVN.2006.16.5.514 인용 PDF KSCI

Chon Jcechoon
- Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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- v.23 no.2
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- pp.165-175
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- 2005
If the interlaced scan type camera moves while an image is filming from the camera, blur is often created from the misalignment of the two images of even and odd lines. This paper proposed an algorithm which removes the misalignment of the even and odd line images cased by the vibration of the interlaced scan type camera. The blurred original image is separated into the even and the odd line images as half size. Based on these two images, two full sized images are generated using interpolation technique. If a big difference between these two interpolated images is generated, the original image is taken while the camera is moving. In this case, a deblurred image is obtained with the alignment of these separated two images through feature point extraction, feature point matching, sub-pixel matching, outlier detection, and image mosaicking processes. This paper demonstrated that the proposed algorithm can create clear images from blurred images caused by various camera motions.
PDF KSCI