Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Chan Ho Han"'
Publikováno v:
Journal of the Korean Society for Precision Engineering. 40:99-104
Publikováno v:
International Journal of Control, Automation and Systems. 15:2551-2560
A new control scheme based on extremum seeking control (ESC) which employs a constrained derivative-free optimization algorithm has been proposed in this paper. A theorem has been formulated to prove the convergence result of ESC based on constrained
Autor:
Chan-Ho Han, Duk-Kyu Choi
Publikováno v:
IEMEK Journal of Embedded Systems and Applications. 8:43-50
The narrow dynamic range of most smart phone cameras is severely limited. It usually is narrower than the dynamic range of most scenes. So we proposes a illuminance dynamic range expansion using multi-point knee for smart phone camera. Such as logari
Autor:
Chan-Ho Han
Publikováno v:
Journal of Korea Multimedia Society. 16:50-55
This article presents a simple and reasonable in-service, real-time, and continuous single-ended objective video quality assessment model for DTV broadcasting using a multiburst signal at the bottom of the transient effect area, similar to Vertical I
Publikováno v:
IEICE Transactions on Electronics. :1028-1031
Publikováno v:
IEICE Transactions on Electronics. :922-928
LCD Automatic Vision Inspection (AVI) systems automatically detect defect features and measure their sizes via camera vision. AVI systems usually report different measurements on the same defect with some variations on position or rotation mainly bec
Autor:
Kun-Il Lee, Chan-Ho Han
Publikováno v:
IEEE Transactions on Consumer Electronics. 54:1739-1742
When using a finite DTV stream, discontinuity phenomena, such as a black or paused screen in the case of video and irregular or popping sounds in the case of audio, are generally experienced at the loop-back point. As the transmission time of the tra
Autor:
Chan-Ho Han, Kil-Houm Park
Publikováno v:
IEICE Transactions on Electronics. :1604-1607
Gamma correction is an essential function and is time consuming task in every display device such as CRT and LCD. And gray scale CCT reproduction in most LCD are quite different from those of standard CRT. An automated fast and accurate display adjus
Publikováno v:
IEEE Transactions on Consumer Electronics. 54:262-267
Small color LCDs have been widely used in the mobile display market for the past couple of decades due to their cost effectiveness. In particular, 64K color LCDs have gained in popularity over true color LCDs due to their low power consumption and ef
Publikováno v:
IEICE Transactions on Electronics. :2126-2130
We propose a filtering method for optimal estimation of TFT-LCD's surface region except defect's region. To estimate the nonuniform intensity variation on TFT-LCD surface region, the 4-directional Gaussian filter based on image pyramid structure is p