高清电视摄像机及拍摄技术
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摘要
介绍了高清电视摄像机及高清电视技术标准,采取与标清电视摄像机对比的办法,分析了高清摄像机精准聚焦、控制曝光及艺术构图的技术要求。结合目前我国高标清同播的实际,提出了高清拍摄不仅要在景深控制、伽玛曲线理解、拐点位置选取等方面更加深入外,还要考虑兼顾标清电视画幅比例、3种不同类型(左右挤压、上下加边、左右切边)下变换模式的影响因素,使高清电视摄像机拍摄的电视画面适合在高清电视及标清电视上收看。
High-definition TV cameras and high-definition TV technology standards are introduced,compared with standard definition TV cameras way to,analyzes the high-definition cameras precise focus,exposure control and the art of composition of technical requirements. Combined with the current our country starts with the actual,put forward the high definition shooting should not only in the understanding of the depth of field control,gamma curve,inflection point location selection etc. Further,consider both proportion of standard definition TV format,three different types( about extrusion,the plus side,left and right edges) under the influence factors of transformation patterns,high-definition television camera television images for watch in hd and standard definition TV.
High-definition TV cameras and high-definition TV technology standards are introduced,compared with standard definition TV cameras way to,analyzes the high-definition cameras precise focus,exposure control and the art of composition of technical requirements. Combined with the current our country starts with the actual,put forward the high definition shooting should not only in the understanding of the depth of field control,gamma curve,inflection point location selection etc. Further,consider both proportion of standard definition TV format,three different types( about extrusion,the plus side,left and right edges) under the influence factors of transformation patterns,high-definition television camera television images for watch in hd and standard definition TV.
引文
[1]苏建波.从电视画面构图看电视摄像的技巧[J].科技传播,2018(5):84-85.
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[3]吴昊.高清晰度电视摄像和制作的系统性探讨[J].电视技术,2015(4):76-78.
[4]杨真,徐士彪,孟维亮,等.基于快速引导滤波的景深实时渲染方法[J].中国体视学与图像分析,2017(2):216-223.
[5]韦安明,宁金辉,张乾,等. 4K超高清电视系统的测试浅析[J].广播与电视技术,2015(8):26-33.
[6]冯宁,宋利,解蓉. HDR/WCG关键技术分析及标准化进展[J].电视技术,2018(2):10-17.
[7]牛犇论.镜头语言在电视新闻摄像中的应用[J].新闻传播,2018(3):102-103.
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[2]吴永波.超高清4K电视节目拍摄探讨[J].电视技术,2016(1):111-116.
[3]吴昊.高清晰度电视摄像和制作的系统性探讨[J].电视技术,2015(4):76-78.
[4]杨真,徐士彪,孟维亮,等.基于快速引导滤波的景深实时渲染方法[J].中国体视学与图像分析,2017(2):216-223.
[5]韦安明,宁金辉,张乾,等. 4K超高清电视系统的测试浅析[J].广播与电视技术,2015(8):26-33.
[6]冯宁,宋利,解蓉. HDR/WCG关键技术分析及标准化进展[J].电视技术,2018(2):10-17.
[7]牛犇论.镜头语言在电视新闻摄像中的应用[J].新闻传播,2018(3):102-103.
[8]刘羽.高清电视摄影技术[M].北京:中国传媒大学出版社,2015.