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        Hardware-Software Implementation of MPEG-4 Video Codec

        김성민,서기범,엄낙웅,김경숙,Ju-HyunPark,Seong-MoPark,Bon-TaeKoo,Kyoung-SeonShin,Ig-KyunKim 한국전자통신연구원 2003 ETRI Journal Vol.25 No.6

        This paper presents an MPEG-4 video codec, called MoVa, for video coding applications that adopts 3G-324M. We designed MoVa to be optimal by embedding a costeffective ARM7TDMI core and partitioning it into hardwired blocks and firmware blocks to provide a reasonable tradeoff between computational requirements, power consumption, and programmability. Typical hardwired blocks are motion estimation and motion compensation, discrete cosine transform and quantization, and variable length coding and decoding, while intra refresh, rate control, error resilience, error concealment, etc. are implemented by software. MoVa has a pipeline structure and its operation is performed in four stages at encoding and in three stages at decoding. It meets the requirements of MPEG-4 SP@L2 and can perform either 30 frames/s (fps) of QCIF or SQCIF, or 7.5 fps (in codec mode) to 15 fps (in encode/decode mode) of CIF at a maximum clock rate of 27 MHz for 128 kbps or 144 kbps. MoVa can be applied to many video systems requiring a high bit rate and various video formats, such as videophone, videoconferencing, surveillance, news, and entertainment.

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        남・녀 노인들의 안면피부요소와 Heath-Carter 체형 3요소간의 상관관계 분석

        박지현(Ji?Hyun Park),김미옥(Mi-Ok Kim),김명희(Myoung-Hee Kim),이주연(Ju-Yeon Lee),천성욱(Sung-Wook Chun),신상근(Sang-Keun Shin) 한국발육발달학회 2021 한국발육발달학회지 Vol.29 No.4

        The purpose was to analyze of the correlationship about facial skin components(5items: pores, wrinkles, Spot, Sebum, Skin Tone and H-C Somatotype three components(3 items: Endomorphic, Metamorphic, Ectomorphic) on elderly Men and Women. A total of 60 people 38 elderly men and 22 women participants who live in Geoje city were recruited for the study. Data processing was performed using SPSS Ver. 26.0 and Pearson"s correlation analysis, got the mean(M) and standard deviation(S.D). The statistical significance level was to be set .05. The results of the study showed significant differences between facial skin components and endomorphic components and body composition. There were showed negative correlations between pore, wrinkles, spot, sebum and endomorphic components on the elderly men and women. On the other side, there were showed positive correlations in skin tone. A positive correlation was found in body fat percentage, wrinkles, and skin tone. also found in lean body mass and pores and sebum volume. In conclusion, it was body fat persentage and the degree of obesity are related to the skin components on elderly men and women. Therefore, this study suggests that necessity of research on the skin health status according to obesity and exercise.

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