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ADAS Fail-Safe를 위한 센서 검출 오류 발생시 전방 차량 트랙 관리 시스템에 관한 연구
정진한(Jin Han Jeong),송영훈(Song Young Hoon),김우영(Woo Young Kim),박장현(Jahng Hyon Park) 한국자동차공학회 2019 한국자동차공학회 부문종합 학술대회 Vol.2019 No.5
Adavanced Driver Assistance System(ADAS) use a variety of sensors as their functions become more complex. Errors from each sensor cause fatal malfunctions in the entire system. Therefore a multi-sensor Fail-Safe algorithm for Advanced Driver Assistance System(ADAS) has been considered in this paper. We proposed a sensor track management system which diagnoses failure time of either Radar or Camera that lead to a fatal malfunction under the ADAS application performing. The system operates multi-sensor fusion with forward radars and a monocular camera under the supervision of Track Management System. The main purpose in this research lies in the field of track loss from vehicle detection fault. We have tested several simulation tests for analysis on the vehicle detection fault of time for ADAS Fail-Safe and three important tests of the results demonstrated that perception module among the entire ADAS system has an important role and should keep on diagnosing the sensor fail to hand it over to the next decision and control.
정진국(JinGuk Jeong),권오형(OhHyung Kwon),낭종호(Jongho Nang) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1B
본 논문에서는 MPEG 비디오 스트림에 대한 기존의 샷 경계 검출 방법들을 분석하고, 이를 바탕으로 기존의 방법들을 조합한 새로운 샷 경계 검출 알고리즘을 제안한다. 제안한 방법에서는 Cut (Abrupt Change)을 검출하기 위하여 I, B, P 프레임들의 매크로블록 타입과 DCT 계수를 이용하였으며, Gradual Change 경계를 검출하기 위하여 DC 값의 분산을 이용하였다. 실제 실험에 의하면 본 논문에서 제안한 Cut 검출 방법은 모든 프레임에 대하여 샷 경계를 검사하기 때문에 어떤 한 종류의 프레임에 대한 검사만을 위한 알고리즘보다 정확하게 그 경계를 찾을 수 있음을 알 수 있었다. 그리고, Gradual Change의 검출 방법에서는 새로운 분산의 형태를 살펴볼 수 있었다.
대학 축구선수의 무산소성 예비량과 무산소성 운동능력의 상관성
정진원(Jin Won Jeong),심대용(Dae Yong Sim) 한국운동영양학회 2000 Physical Activity and Nutrition (Phys Act Nutr) Vol.4 No.1
N/A This study employed 11 university soccer players for assessing anaerobic capacities related to ATP-PC and/or lactate system. It was investigated correlation among anaerobic capacities from Critical Power test, from Wingate test, and from Isokinetic test. Also, the study investigated regression formula which could expect anaerobic reserve(AR) from variables measured in Wingate and Isokinetic test. There were significant but intermediate correlation between AR and WIN5, (r= .62, P< .05) and WIN30(r= .64, P< .05). There was no statistically significant but intermediate correlation between AR and WIN10 (r= .52, P> .05). The study used stepwise method for multiple regression by Wingate variables to produce AR. The result showed that WIN30 had significant effect and indicated regression formula (Y= 1.3323(WIN30)-14737.758) to explain 41.2% variation of AR. Stepwise method was done for multiple regression on Isokinetic variables to produce AR`s inferred possibility by extensors TW of 60˚ /sec as regression (Y= 10.6737 (TW)+2083.9403) explained 42.9% variation of AR. In the correlation between measured variables of Wingate and Isokinetic extensors there was no significance of intermediate correlation in 60˚ /sec PT and WIN5(r= .53, P> .05) and in TW and WIN5(r= .56 P< .05) statistically. Also, There was significance of intermediate correlation in PT and WIN10 (r= .65, P< .05), no significance in TW and WIN10 (r= .57, P> .05), in PT and WIN30(r= .58), and no significance in TW and WIN30(r= .46, P> .05). In the correlation between measured variables of Wingate and Isokinetic extensors, there was significance of intermediate correlation in 180˚ /sec PT and WIN10 (r= .69, P< .05) and significant correlation in Isokintic 180˚ /sec PT and WIN30(r= .65, P< .05). The data suggested that anaerobic reserve assess true anaerobic ability not including the energy component of anaerobic glycolyses. Also, the study provides preliminary data on the anaerobic abilities in university soccer players as assessed by the Critical Power test, Wingate test, and Isokinetic test.
허먼 멜빌의 『타이피』와『오무』에 나타나는 “고상한/천한 야만인”의 수사학과 국가주의, 식민주의의 목소리
정진만 ( Jin Man Jeong ) 미국소설학회(구 한국호손학회) 2015 미국소설 Vol.22 No.3
This study aims to explore how Herman Melville`s early travel writings, Typee (1846) and its sequel, Omoo (1847), on the one hand, contribute to the consolidation of American national identity as democratic people and, at the same time, appeal to contemporary colonialist impulse, focusing on his usage of two contradictory conceptions-the ‘Noble Savage’ and the ‘Ignoble Savage’-in representing the natives of the South Seas. First, this study investigates in what way Melville`s seemingly sympathetic portrayals of the aboriginal people in the South Seas are employed not only to criticize the imperial decadence, but to ingest and appropriate the virtues of so-called the “Noble Savage” as republican virtues. This study would uncover that the strategy of white Americans` association with the natives along with primitivism undeniably plays the significant role in forging national selfhood as democratic people of freedom, innocence, and simplicity, while negating European corrupt civilization and imperialism. Next, focusing attention on Tommo`s racially-charged colonialist usage of the rhetoric of the ‘Ignoble Savage’ which regards the natives as the animalistic, threatening Other, this study inquires how the previous association with the natives is in turn, or simultaneously, disapproved as a negative way of constructing American identity as civilized people. This study would allow us to comprehend Melville`s self-contradictory association and dissociation with the natives in his early novels are imbricated in a complex way concerning the matter of establishing national consciousness of the United States predicated on nationalism, and are not safely removed as well from his contemporary impulses and ideas of colonialism.