To improve the coding performance of H.264/AVC, this paper proposes a rate control scheme composed of a novel flame complexity optimized selection and a quantization parameter （QP） value computation approach. First,...To improve the coding performance of H.264/AVC, this paper proposes a rate control scheme composed of a novel flame complexity optimized selection and a quantization parameter （QP） value computation approach. First, it extracts the frame coding complexity from two rate distortion models, and then introduces five statistic modes to estimate the frame coding complexity. An optimal mode is selected according to the coding efficiency. Finally the paper presents a novel QP calculation method for the H.264/AVC rate control. Experimental results show that the proposed algorithra outperforms the algorithm integrated in the 3M model in obtaining precise frame coding complexity, achieving robust buffer control and improving coding quality. And the improving visual quality is high up to 0.90dB for CIF sequences.展开更多
In this paper, it explained the process of demographic aging in Republic of Macedonia. There is relevant information for the gradually process of aging. At the end of the text, there are few charts. Macedonia gained i...In this paper, it explained the process of demographic aging in Republic of Macedonia. There is relevant information for the gradually process of aging. At the end of the text, there are few charts. Macedonia gained independence in 1991, in the course of transition from planned to market economy, many socio-economic parameters changed： Demography become evident that fertility rate dropped significantly. In the previous 20 years, number of infants born decreased somewhat 5-6 times compared to 1980. Number of divorce grew rapidly. Also, in the Republic of Macedonia, there followed a parallel process of immigration to western countries, especially western Europe, USA and Australia as well as other countries from the developed world. This migration happened as a result of mainly economic reasons, i.e., countries in which Macedonians migrate have much higher real incomes when compared with Macedonia, and comparatively much higher living standard. One also can find reason for migration in political reasons also, and family reunification. Low fertility is associated with low income and unemployment. People in Macedonia had suffered greatly in transition times with high unemployment, low wages, and corruption, which largely derogated their chances of better future and career and contributed to the demographic aging and low fertility rates.展开更多
基金Supported by the Nat：onal Natural Science Foundation of China （No. 60873185） and the Foundation of Science ＆ Technology Department of Sichuan Province （No. 2011HH0037）.
文摘To improve the coding performance of H.264/AVC, this paper proposes a rate control scheme composed of a novel flame complexity optimized selection and a quantization parameter （QP） value computation approach. First, it extracts the frame coding complexity from two rate distortion models, and then introduces five statistic modes to estimate the frame coding complexity. An optimal mode is selected according to the coding efficiency. Finally the paper presents a novel QP calculation method for the H.264/AVC rate control. Experimental results show that the proposed algorithra outperforms the algorithm integrated in the 3M model in obtaining precise frame coding complexity, achieving robust buffer control and improving coding quality. And the improving visual quality is high up to 0.90dB for CIF sequences.
文摘In this paper, it explained the process of demographic aging in Republic of Macedonia. There is relevant information for the gradually process of aging. At the end of the text, there are few charts. Macedonia gained independence in 1991, in the course of transition from planned to market economy, many socio-economic parameters changed： Demography become evident that fertility rate dropped significantly. In the previous 20 years, number of infants born decreased somewhat 5-6 times compared to 1980. Number of divorce grew rapidly. Also, in the Republic of Macedonia, there followed a parallel process of immigration to western countries, especially western Europe, USA and Australia as well as other countries from the developed world. This migration happened as a result of mainly economic reasons, i.e., countries in which Macedonians migrate have much higher real incomes when compared with Macedonia, and comparatively much higher living standard. One also can find reason for migration in political reasons also, and family reunification. Low fertility is associated with low income and unemployment. People in Macedonia had suffered greatly in transition times with high unemployment, low wages, and corruption, which largely derogated their chances of better future and career and contributed to the demographic aging and low fertility rates.
