http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Erdenebat, Munkh-Uchral,Kwon, Ki-Chul,Yoo, Kwan-Hee,Baasantseren, Ganbat,Park, Jae-Hyeung,Kim, Eun-Soo,Kim, Nam Optical Society of America 2014 Optics letters Vol.39 No.8
<P>We propose a 360?degree integral-floating display with an enhanced vertical viewing angle. The system projects two-dimensional elemental image arrays via a high-speed digital micromirror device projector and reconstructs them into 3D perspectives with a lens array. Double floating lenses relate initial 3D perspectives to the center of a vertically curved convex mirror. The anamorphic optic system tailors the initial 3D perspectives horizontally and vertically disperse light rays more widely. By the proposed method, the entire 3D image provides both monocular and binocular depth cues, a full-parallax demonstration with high-angular ray density and an enhanced vertical viewing angle.</P>
Erdenebat, Munkh-Uchral,Kim, Byeong-Jun,Piao, Yan-Ling,Park, Seo-Yeon,Kwon, Ki-Chul,Piao, Mei-Lan,Yoo, Kwan-Hee,Kim, Nam OSA OPTICAL SOCIETY OF AMERICA 2017 Applied Optics Vol.56 No.28
<P>A mobile three-dimensional image acquisition and reconstruction system using a computer-generated integral imaging technique is proposed. A depth camera connected to the mobile device acquires the color and depth data of a real object simultaneously, and an elemental image array is generated based on the original three-dimensional information for the object, with lens array specifications input into the mobile device. The three-dimensional visualization of the real object is reconstructed on the mobile display through optical or digital reconstruction methods. The proposed system is implemented successfully and the experimental results certify that the system is an effective and interesting method of displaying real three-dimensional content on a mobile device.(C) 2017 Optical Society of America</P>
Munkh-Uchral Erdenebat,권기철,Erkhembaatar Dashdavaa,Yan-Ling Piao,유관희,Ganbat Baasantseren,김영민,김남 한국광학회 2014 Current Optics and Photonics Vol.18 No.6
An enhanced 360-degree integral-floating three-dimensional display system using a hexagonal lens array and a hidden point removal operator is proposed. Only the visible points of the chosen three-dimensional point cloud model are detected by the hidden point removal operator for each rotating step of the anamorphic optics system, and elemental image arrays are generated for the detected visible points from the corresponding viewpoint. Each elemental image of the elemental image array is generated by a hexagonal grid, due to being captured through a hexagonal lens array. The hidden point removal operator eliminates the overlap problem of points in front and behind, and the hexagonal lens array captures the elemental image arrays with more accurate approximation, so in the end the quality of the displayed image is improved. In an experiment, an anamorphic-optics-system-based 360-degree integral-floating display with improved image quality is demonstrated.
Integral-floating Display with 360 Degree Horizontal Viewing Angle
Munkh-Uchral Erdenebat,Ganbat Baasantseren,Nam Kim,권기철,Jina Byeon,Kwan-Hee Yoo,박재형 한국광학회 2012 Current Optics and Photonics Vol.16 No.4
A three-dimensional integral-floating display with 360 degree horizontal viewing angle is proposed. A lens array integrates two-dimensional elemental images projected by a digital micro-mirror device,reconstructing three-dimensional images. The three-dimensional images are then relayed to a mirror via double floating lenses. The mirror rotates in synchronization with the digital micro-mirror device to direct the relayed three-dimensional images to corresponding horizontal directions. By combining integral imaging and the rotating mirror scheme, the proposed method displays full-parallax three-dimensional images with 360 degree horizontal viewing angle.
Complex object wave extraction using time-multiplexing in off-axis digital holography
Dashdavaa, Erkhembaatar,Erdenebat, Munkh-Uchral,Shin, Chang-Won,Kim, Nam OSA OPTICAL SOCIETY OF AMERICA 2018 Applied optics Vol.57 No.1
<P>In this paper, we present an algorithm for complex object wave extraction in off-axis digital holography using a time-multiplexing and frequency spectrum-shifting technique. The proposed approach utilizes the digital time-multiplexing technique, in which two 90-deg-rotated off-axis holograms are recorded in sequence, and corresponding spectra are subtracted in the computed Fourier domain to eliminate the DC term. Then, the two subtracted holograms are digitally multiplexed into one complex hologram in the same plane, and by shifting the spatial frequency spectra of the subtracted hologram in the spatial frequency domain, one of the two cross-correlations can be obtained in the center. This technique simply extracts the spectrum of the real image in the frequency domain than the spatial filtering method. (C) 2017 Optical Society of America</P>
Integral imaging microscopy with enhanced depth-of-field using a spatial multiplexing
Kwon, Ki-Chul,Erdenebat, Munkh-Uchral,Alam, Md. Ashraful,Lim, Young-Tae,Kim, Kwang Gi,Kim, Nam The Optical Society 2016 Optics express Vol.24 No.3
<P>A depth-of-field enhancement method for integral imaging microscopy system using a spatial multiplexing structure consisting of a beamsplitter with dual video channels and micro lens arrays is proposed. A computational integral imaging reconstruction algorithm generates two sets of depth-sliced images for the acquired depth information of the captured elemental image arrays and the well-focused depth-slices of both image sets are combined where each is focused on a different depth plane of the specimen. A prototype is implemented, and the experimental results demonstrate that the depth-of-field of the reconstructed images in the proposed integral imaging microscopy is significantly increased compared with conventional integral imaging microscopy systems. (C)2016 Optical Society of America</P>