• 제목/요약/키워드: Image Reduction

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A Study on the Communication of Emotion by using Motion Graphics -Based on TV Commercial Message (모션그래픽을 이용한 감성 커뮤니케이션의 연구 -TV광고를 중심으로-)

  • Lee, Seung-Hoon
    • Proceedings of the Korea Contents Association Conference
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    • 2006.11a
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    • pp.312-316
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    • 2006
  • Todays many image digital media are in existence. Image digital media are connecting communication closely between receiver and transmitter. Development of image digital media enabled intensive image communication through internet and communicative media. Development of these image digital media brought visual information transmission and time reduction. Image digital media is connecting producers and consumers as indirect intermeditation called advertisement. Development of image digital media made field called motion graphic. Development of motion graphic made a lot of image technique and effect to enable. These ads. images are also operating or performing sensitive-communication by stimulating desire of consumers. An investigator in this study will be in search of an effect and an operation that motion graphic as a field of image expression technique gives insentive communication through an intance investigation.

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Weight Control Behaviors in Female College Students (여대생의 체중조절행위)

  • Kim, Eun-Ju;Cha, Bok-Kyeong
    • Women's Health Nursing
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    • v.13 no.4
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    • pp.320-326
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    • 2007
  • Purpose: This study was carried out in an attempt to find weight control behaviors (BMI, experiences of weight control, weight control related factors, etc.) of college female students. Method: The subjects were 596 female students in 104 universities and colleges in Korea. Data was collected by using a questionnaire developed through a pretest. Result: Seventy five percent of subjects were in the normal range in weight, but 63.8% have experienced weight control behaviors and 58.9% have worried about their weight. Middle and high school was the first time to have concerns about their weight/body image. In addition, the influence towards weight control was mainly by mass communication. Weight control frequency in the most recent most year correlated with concern about weight, first time of weight control, maximum maintaining period of losing weight and BMI. Conclusion: To ensure resonable body image and weight control behaviors in women, education has to begin in elementary schools. In the case of weight control, scientific and systematic weight reduction programs should be developed.

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A Study on the Print Quality of Computer to Plate offset Lithography (CTP 평판오프셋 인쇄의 품질에 관한 연구)

  • Kim, Sung-Su;Shin, Chun-Beom;Kang, Sang-Hoon
    • Journal of the Korean Graphic Arts Communication Society
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    • v.22 no.1
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    • pp.1-8
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    • 2004
  • The key points of the CTP board is as follows: Film, brightness, plate exposure is eliminated, the reduction of personal expenses, and the reduction of time consumption. But above all, the accurate reappearance of the highlighting and shadow portion as well as self modification of the dust edge portion stands out as the most impressive improvements. In this paper, using a digital test from 4.0 and a Thermal CTP color printing control, the two parts of the Thermal CTP utilized a 1%-99% dot reappearance. Also, using an opposite line target, the results of the CTP plates and printing were compared. Finally, research was made on the printing quality on the slur development of the plate and the result when there was a lack of weave connection.

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A Fast Context Modeling Using Tree-structure of Coefficients from Wavelet-domain

  • Choi, Hyun-Jun;Seo, Young-Ho;Kim, Dong-Wook
    • Journal of information and communication convergence engineering
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    • v.7 no.4
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    • pp.496-500
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    • 2009
  • In EBCOT, the context modeling process takes excessive calculation time and this paper proposed a method to reduce this calculation time. That is, if the finest resolution coefficient is less than a pre-defined transfer factor the coefficient and its descendents skip the context modeling process. There is a trade-off relationship between the calculation time and the image quality or the amount of output data such that as this threshold value increases, the calculation time and the amount of output data decreases, but the image degradation increases. The experimental results showed that in this range the resulting reduction rate in calculation time was from 3% to 64% in average, the reduction rate in output data was from 32% to 73% in average.

Image Noise Reduction in Discrete Cosine Transform domain

  • Joo, Hyosun;Park, Junhee;Kim, Jeongtae;Lee, Byung-Uk
    • IEIE Transactions on Smart Processing and Computing
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    • v.2 no.1
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    • pp.20-26
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    • 2013
  • Image noise reduction in the frequency domain by thresholding is simple, but quite effective. Wavelet domain thresholding has been an active area of research but relatively little work has been published on DCT domain denoising. A novel method for determining the hard threshold for the DCT domain denoising is proposed. The low amplitude DCT coefficients are discarded until the cumulative sum of the discarded signal energy is comparable to that of noise in each DCT block. Cycle spinning is also applied to reduce block artifacts. The proposed method is quite effective and simple enough to be used in portable devices.

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Latent Charge Erasing Technique for a-Se Digital X-ray Detector (비정질 셀레늄 디지털 X선 검출기에 대한 잔류 전하 제거 기술)

  • Kang, S.S.;Choi, J.Y.;Park, J.K.;Cho, J.W.;Moon, C.W.;Choi, H.K.;Nam, S.H.
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.11b
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    • pp.505-508
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    • 2001
  • Currently there is much interested in removing latent charge that is caused to latent image effect and blurring of obtained image as well as reduction of x-ray conversion efficiency in digital radiography system. To remove latent charge a-Se film is irradiated by light with 3500 lux using halogen lamp and optical fiber. We measured dark current and photosensitivity to analyze removing effect of latent charge, then compared with and without light erasing method. The reduction of measured signal due to latent charge effect was 32.5 %, and the removal effect of latent charge by using light erase method was its 95.5 %.

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Role of MRI in Deciding on a Treatment Plan for Sciatic Nerve Palsy after Reduction of a Hip Dislocation: Case Report (고관절 탈구 정복 후 발견된 좌골 신경 마비의 자기공명영상을 통한 치료방향 결정: 증례 보고)

  • Cho, Junho;Yeo, Woon Hyung;Kim, Ji Wan
    • Journal of Trauma and Injury
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    • v.26 no.3
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    • pp.229-232
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    • 2013
  • Traumatic fracture-dislocations of the hip frequently result from high-energy injury, and hip dislocations are commonly associated with severe concomitant injuries. Sciatic nerve injury often accompanies traumatic fracture-dislocation of the hip, but neurologic examination at the time of injury is difficult in severely traumatized patients with decreased consciousness. We present such a case of multiple traumas with traumatic hip dislocation and sciatic nerve injury after reduction, and we found that magnetic resonance image (MRI) played an important role in developing a management plan.

The effective noise reduction method in infrared image using bilateral filter based on median value

  • Park, Chan-Geun;Choi, Byung-In
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.12
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    • pp.27-33
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    • 2016
  • In this paper, we propose the bilateral filter based on median value that can reduce random noise and impulse noise with minimal loss of contour information. In general, EO / IR camera to generate a random or impulse noise due to a number of reasons. This noise reduces the performance of detecting and tracking by signal processing. To reduce noise, our proposed bilateral filter sorts the values of the target pixel and the peripheral pixels, and extracts a median filter coefficients of the Gaussian type. Then to extract the Gaussian filter coefficient involved with the distance between the center pixel and the surrounding pixels. As using those filter coefficients, our proposed method can remove the various noise effectively while minimizing the loss of the contour information. To validate our proposed method, we present experimental results for several IR images.

Latent Charge Erasing Technique for a-Se Digital X-ray Detector (비정질 셀레늄 디지털 X선 검출기에 대한 잔류 전하 제거 기술)

  • 강상식;최장용;박지군;조진욱;문치웅
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.11a
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    • pp.505-508
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    • 2001
  • Currently there is much interested in removing latent charge that is caused to latent image effect and blurring of obtained image as well as reduction of x-ray conversion efficiency in digital radiography system. To remove latent charge a-Se film is irradiated by light with 3500 lux using halogen lamp and optical fiber. We measured dark current and photosensitivity to analyze removing effect of latent charge, then compared with and without light erasing method. The reduction of measured signal due to latent charge effect was 32.3%, and the removal effect of latent charge by using light erase method was its 95.5%.

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Noise Reduction for Photon Counting Imaging Using Discrete Wavelet Transform

  • Lee, Jaehoon;Kurosaki, Masayuki;Cho, Myungjin;Lee, Min-Chul
    • Journal of information and communication convergence engineering
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    • v.19 no.4
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    • pp.276-283
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    • 2021
  • In this paper, we propose an effective noise reduction method for photon counting imaging using a discrete wavelet transform. Conventional 2D photon counting imaging was used to visualize the object under dark conditions using statistical methods, such as the Poisson random process. The photons in the scene were estimated using a statistical method. However, photons which disturb the visualization and decrease the image quality may occur in the background where there is no object. Although median filters are used to reduce the noise, the noise in the scene remains. To remove the noise effectively, our proposed method uses the discrete wavelet transform, which removes the noise in the scene using a specific thresholding method that utilizes photon counting imaging characteristics. We conducted an optical experiment to demonstrate the denoising performance of the proposed method.