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산업장 근로자를 대상으로 실시한 한방 건강검진의 만족도
한현정,정재열,권소희,손용선,장두섭,이기남 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.2
The examinees who received oriental and western health examination both and submitted questionnaire were 257 workers in workplace for 1 month during health examination for industrial workers. The research was to compare the satisfaction of oriental and western health examination by the questionnaire. The data that were collected by health examination were analyzed into frequencies, ANOVA, T-test with use of SPSS 10.0 program by the research purposes. The results were as follows: 1. Health examination in satisfaction comparison by the general characteristics of subject was significant in oriental health examination for the subjects who had 9-10 working hours(P〈0.05). 2. The workers who had high confidence in result of health examination, affirmative thinking for requirement of health examination, arbitrary decision for receiving the health examination, had high satisfaction in oriental and western health examination both, It was statistically significant difference. 3. For the difference in subjective health condition's recognition, the subject who answered " Healthy" had high satisfaction in western health examination, and it was statistically in western health examination, and it was statistically significant The subject who answered "Healthy" for the early detection of disease had high satisfaction in western health examination, The subject who answered skeptical for the early detection of disease had high satisfaction. in oriental health examination and it was statistically significant. 4. The respondent who said "Yes" for the question, whether you know about oriental health examination or not before receiving oriental health examinatgion had relatively high satisfaction For the question about including of oriental health examination continuously in the coming future, the subject who replied affirmative answer had high satisfaction in average, and it was significant difference(P〈0.05). 5. For the question that will be needed in the item of oriental health examination, the highest item was the requirement of specific oriental health examination for various diseases, followed by the requirement of medical specialist for individual need of medical examination by the item, and the prescription of herbal medicine, the medical examination of cancer, the interview for folk remedies, the parallel treatment for acupuncture cupping, etc, the medical examination for adult disease, the requirement of room for medical examination etc.
웨이블릿 스칼라 양자화를 이용한 지문 양상 압축 코덱 개발 및 성능 개선에 관한 연구
남재열(Nam Jae Yeal),최지훈(Choe Jee Hoon),손유익(Son Yoo Ek) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.8
Images are playing a very important role in multimedia information of various fields such as computer graphics, education, medical information. In this information age, especially, the fingerprint images are used as important information in the security and authentication systems. However, in the existing cases of the systems, the adopted method for storing the fingerprint information is to store just the peculiar partly information of each fingerprint, because of the vast amount of storage needed for fingerprint images, so the various applications for the efficient fingerprint identification or retrieval have been constrained. Although the JPEG is now available as a still picture compression standard, it is actually very difficult to use JPEG standard in the case that high compression ratio above 20:1 is needed in those systems, because many coding artifacts are caused. Therefore, it has been greatly desired to develop an codec accomplishing such a high compression and providing high image quality at the low bit rate. In this paper, as an answer to those requirements, we developed an image compression codec according to the FBI fingerprint image compression standard which was based on the WSQ, the newly emerging image compression technique. The developed software codec can be operated in Windows95@ environment for the practical compression and decompression of fingerprint images. Retaining the compatibility with FBI codec, the developed codec came to have better performance than FBI's by applying the performance enhancement technique. The developed codec is also applicable in electronic ID card and various authentication system industries.
MPEG 비디오 인코더를 위한 장면전환 검출 및 적응적 율 제어 방식 연구
남재열(Nam Jae Yeal),강병호(Kang Byung Ho),손유익(Son Yoo Ek) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.2
A well-designed rate control strategy can improve overall quality for video transmission over a constant hit rate channel and the rate control method is not a normative part of the MPEG-video standard, the performance of MPEG video codec can be quite different depends on how to implement the rate control scheme. The rate control scheme proposed in MPEG shows good results when scene changes is not occurred. But it has weakness that it does not properly handle scene-changed pictures. Therefore picture quality after scene change is deteriorated, and possibility of overflow occurrence becomes high. In this paper, a new method for detection of scene change occurrence using local variance and a new determination scheme for adaptive quantization parameter, mqunt, which can consider local characteristics of an image by using previously computed the local variance from the scene change detection part are proposed. In addition, an adaptive rate control scheme which can handles scene changed picture very efficiently by saving encoding bits from some pictures before the scene change occurrence and allocating the saved bits to the scene-changed picture is proposed. Computer simulations are performed to verify the performance of the proposed algorithms. The suggested detection algorithm precisely detected scene change. And the proposed rate control scheme shows better rate control performance as compared with that of the conventional MPEG scheme.