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Piao, Yongri,Kim, Eun-Soo The Optical Society 2009 Applied Optics Vol.48 No.34
<P>In this paper, we propose a novel approach for resolution-enhanced computational reconstruction of far 3-D objects by employing a direct pixel mapping (DPM) method in the curving-effective integral imaging (CEII) system. In this method, by using the DPM method, an elemental image array (EIA) picked up from a far 3-D object can be computationally transformed into a new EIA, which virtually looks like the EIA picked up from a near object. Therefore, with this newly transformed EIA a much better resolution-enhanced object image can be reconstructed in the CEII system. Good experimental results confirmed the feasibility of the proposed method.</P>
Piao, Yongri,Kwon, Young-Man,Zhang, Miao,Lee, Joon-Jae The Korea Institute of Information and Commucation 2013 Journal of information and communication convergen Vol.11 No.2
In this paper, an accelerated generation algorithm to effectively generate an elemental image array in computational integral imaging system is proposed. In the proposed method, the depth information of 3D object is extracted from the images picked up by a stereo camera or depth camera. Then, the elemental image array can be generated by using the proposed accelerated generation algorithm with the depth information of 3D object. The resultant 3D image generated by the proposed accelerated generation algorithm was compared with that the conventional direct algorithm for verifying the efficiency of the proposed method. From the experimental results, the accuracy of elemental image generated by the proposed method could be confirmed.
Resolution Enhanced Computational Integral Imaging Reconstruction by Using Boundary Folding Mirrors
Yongri Piao,Luyan Xing,Miao Zhang,이민철 한국광학회 2016 Current Optics and Photonics Vol.20 No.3
In this paper, we present a resolution-enhanced computational integral imaging reconstruction methodby using boundary folding mirrors. In the proposed method, to improve the resolution of the computationallyreconstructed 3D images, the direct and reflected light information of the 3D objects through a lensletarray with boundary folding mirrors is recorded as a combined elemental image array. Then, the ray tracingmethod is employed to synthesize the regular elemental image array by using a combined elemental imagearray. From the experimental results, we can verify that the proposed method can improve the visual qualityof the computationally reconstructed 3D images.
중국 조선족 大衆歌謠 가사에 나타난 어머니像 연구 : 중화인민공화국 건국이후를 중심으로
박영일 이화여자대학교 음악연구소 2014 이화음악논집 Vol.18 No.1
This essay analyzes symbolic meanings of the “mother” image appearing in Korean Chinese popular songs, “mother” which is a topic that humankind has long contemplated. In contrast to other Chinese ethnic groups, Korean Chinese have preserved their own ethnic characteristics, by exchanging arts and cultures both with North Korea and South Korea, and bridging the two Koreas. From the 1950s to the late 1970s, Korean Chinese music has been influenced more by North Korea than by South Korea. However, since the economic reform and open economy expedited from the early 1990s, Korean Chinese have frequently visited South Korea, and thus, been gradually exposed to Korean Culture. In particular, as a lot of mothers (Korean Chinese women) have left for Korea to pursue better economic opportunities, the reality based on the rampant migration has been widely reflected in Korean Chinese popular songs. The lyrics on the “mother” image appearing in Korean Chinese popular songs are as following. From 1945 to the late 1970s, there are largely two trends in Korean Chines popular songs. The first is a “mother” image based on motherhood. The second is an image of “mother” who supports the socialist regime. From the late 1970s to the 1980s, we can witness gradual decrease in the image of mother who supported the socialist regime and war participation. Until the 1970s, the lyric still showed the image of mother who led the community party policy. In the wake of economic reform and open economy, Korean Chinese songs showed a strong tendency in expressing homeland, yearning, and motherhood, songs that included stories of singing together with family. Finally, from the 1990s to the present, the “mother” image is described as a source of yearning or homesick as migration, mainly to South Korea, has greatly occurred along with the Chinese economic development. Here, yearning is as a feeling that stems from “being separated from family” and the weakened ethnic identity.