Search Results - "Hyungsuck Cho, Hyungsuck Cho"

Micropeg and Hole Alignment Using Image Moments Based Visual Servoing Method by Junping Wang, Junping Wang, Hyungsuck Cho, Hyungsuck Cho

“…The conventional image-based visual servoing leads to image singularities that might cause control instabilities. To avoid this problem, in this paper, the…”
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Optomechatronics for Biomedical Optical Imaging: An Overview by Cho, Hyungsuck

“…The use of optomechatronic technology, particularly in biomedical optical imaging, is becoming pronounced and ever increasing due to its synergistic effect of…”
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Depth-of-Field Extension Method Using Variable Annular Pupil Division by Hong, Deokhwa, Cho, Hyungsuck

“…The depth-of-field (DOF) of an imaging system is closely related to the pupil function that describes the characteristics of the pupil such as size and shape…”
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Microassembly of micropeg and -hole using uncalibrated visual servoing method by Wang, Junping, Liu, An, Tao, Xiaodong, Cho, Hyungsuck

“…In order to achieve high performance visual servoing, substantial efforts must be made for the calibration of intrinsic parameters of the camera and the…”
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An Active Zooming Strategy for Variable Field of View and Depth of Field in Vision-Based Microassembly by Xiaodong Tao, Janabi-Sharifi, F., Hyungsuck Cho

“…Microassembly has become an important technique to fabricate micro devices with different materials, complex shapes, and incompatible processes. Vision-based…”
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6DOF optical tracking system using afocal optics for image guided surgery by Chae, You Seong, Lee, Seung Hyun, Lee, Hyun Ki, Cho, Hyungsuck, Kim, Min Young

“…Image guided surgery using medical robots is becoming popular these days. For image guided surgery, a tracking system is required to provide 6DOF information…”
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Microassembly using a variable view imaging system to overcome small FOV and occlusion problems by Xiaodong Tao, Hyungsuck Cho, Deokhwa Hong

“…In this paper, the variable view imaging system (VVIS) developed to offer flexibility in microscopic observation is applied to microassembly tasks to overcome…”
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A new 3D sensing method based on stereo PMP technique for mobile robots by Hyunki Lee, Hyungsuck Cho

“…Intelligent autonomous mobile robots must be able to sense and recognize 3D environment for navigation and task execution where they live or work. To achieve…”
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A New 3D Sensor System for Mobile Robots Based on Moire and Stereo Vision Technique by Hyunki Lee, Hyungsuck Cho, Minyoung Kim

“…Intelligent autonomous mobile robots must be able to sense and recognize 3D environment for navigation and task execution, where they live or work. To achieve…”
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Optical design of a variable view imaging system with the combination of a telecentric scanner and double wedge prisms by Tao, Xiaodong, Cho, Hyungsuck, Janabi-Sharifi, Farrokh

“…Recent developments in micro-electro-mechanical systems and biotechnology have presented an emerging need for observation of dynamic targets in…”
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Path planning for micro-part assembly by using active stereo vision with a rotational mirror by Lee, Dukyoung, Kim, Min Young, Cho, Hyungsuck

“…Our proposed active vision system for micro assembly is equipped with a top view camera and a side view camera with a rotational mirror system, such that the…”
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Active optical system for variable view imaging of micro objects with emphasis on kinematic analysis by Tao, Xiaodong, Cho, Hyungsuck, Janabi-Sharifi, Farrokh

“…Insufficient vision information, such as occlusion, low resolvability, and a small field of view, represent important issues in microassembly and…”
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Depth-of-field extension through focal plane oscillation and variable annular pupil by Deokhwa Hong, Hyungsuck Cho

“…In this paper, a depth-of-field extension method is introduced. The extension is realized by the variable annular aperture method previously proposed by the…”
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Increasing the Visibility for Observing Micro Objects with the Variable View Imaging System by Tao, Xiaodong, Cho, Hyungsuck

“…Sufficient visual information is vitally needed for microassembly and micromanipulation. However, most of the conventional vision systems with fixed optical…”
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Dense range map reconstruction from a versatile robotic sensor system with an active trinocular vision and a passive binocular vision by Kim, Min Young, Lee, Hyunkee, Cho, Hyungsuck

“…One major research issue associated with 3D perception by robotic systems is the creation of efficient sensor systems that can generate dense range maps…”
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Increase visibility for observation of micro objects in microassembly by an active imaging system by Xiaodong Tao, Hyungsuck Cho

“…Vision technique used in automatic microassembly limits its application, due to several inherent problems such as occlusions and small field of view. However…”
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Control point adaptation algorithm for CAD-based visual tracking of micro MEMS parts using active stereo vision system by DukYoung Lee, Hyungsuck Cho

“…Visually guided assembly of micro MEMS parts with high magnification is limited by small field of view (FOV). To overcome this problem, zoom lens system is…”
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Guest Editorial Introduction to the Focused Section on Optomechatronics by Janabi-Sharifi, Farrokh, Cho, Hyungsuck, Fukuda, Toshio

“…This focused section on optomechatronics is dedicated to recent advances in optomechatronic devices, systems, and metrology, aiming to stimulate future…”
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Depth of Field Adaptation for Observation of Microscopic Objects by Using Variable Annular Aperture System by Hong, Deokhwa, Cho, Hyungsuck

“…High magnification optical systems such as microscopes usually suffer from limited depth-of-field (DOF) problem. This hinders efficient observation of…”
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Design of variable view imaging system for active observation of micro object by Xiaodong Tao, Hyungsuck Cho

“…Occlusion and low resolvability are important issues in micromanipuatlaion, microassembly and inspection for conventional optical vision system. In this paper,…”
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