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Dive into the research topics where Hyun-cheol Kim is active.

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Featured researches published by Hyun-cheol Kim.


electronic imaging | 2007

Measurement-based objective metric for printer resolution

Jun Hasegawa; Tae-Yoon Hwang; Hyun-cheol Kim; Dae-won Kim; Min-Ho Choi

There are many possible definitions for the printer resolution because it could include various aspects of exact reproduction of graphic data. This study proposes a metric to evaluate the quality on the resolution of the laser printer in an objective way with a scanner system. First, various classic methods for describing resolution quality are surveyed and their weak points are shown. Second, the needed properties of the method to realize the ideal evaluation system are shown. Third, the calclation method for the printer resolution metric is described in detail. Finally, the experimental results of this method demonstrate the validity of the proposed metric.


Archive | 2001

Bubble-jet type ink-jet printhead and manufacturing method thereof

Chang-seung Lee; Kyoung-won Na; Sang-Wook Lee; Hyun-cheol Kim; Yong-Soo Oh


Archive | 2000

Method of fabricating micro electro mechanical system structure which can be vacuum-packed at wafer level

Byeoung Ju Ha; Seog-Soon Baek; Hyun-cheol Kim; Hoon Song; Yong-Soo Oh


Archive | 2000

Microgyroscope with two resonant plates

Hoon Song; Seog-Soon Baek; Hyun-cheol Kim; Byeoung Ju Ha; Yong-Soo Oh


Archive | 2009

Host apparatus, image forming apparatus, and diagnosis method for image forming apparatus

Hyun-cheol Kim; Tae-Yoon Hwang


Archive | 2001

Bubble-jet type ink-jet printhead, manufacturing method thereof, and ink ejection method

Sang-Wook Lee; Hyun-cheol Kim; Yong-Soo Oh


Archive | 2001

Bubble-jet type ink-jet printhead capable of preventing a backflow of ink

Sang-Wook Lee; Hyun-cheol Kim; Yong-Soo Oh


Archive | 2011

Image compensation device, image processing apparatus and methods thereof

Kyeong-man Kim; Hyun-cheol Kim; Min-ki Cho; Hyun-soo Oh; Eun-ah Song; Yeong-Ho Ha; Dae-chul Kim; Wang-jun Kyung


Archive | 2011

METHOD AND APPARATUS FOR PIC CHANNEL ESTIMATOR CONSIDERING WEIGHT

Hyun-cheol Kim; Sung-Kwon Jo; Myung-Kwang Byun


Archive | 2011

Colour conversion apparatus and method thereof

Kyeong-man Kim; Hyun-cheol Kim; In-Ho Park; Jae-Min Shin; Heui-keun Cho; Yeong-Ho Ha; Dae-chul Kim; Wang-jun Kyung

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