欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ITU-R BT 1664-2003 Representation of various image aspect ratios into the image of large screen digital imagery applications that use a 16 9 raster《使用16 9光栅的大屏幕数字成像应用的图像各种纵横比的表示》.pdf

    • 资源ID:790639       资源大小:83.19KB        全文页数:2页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ITU-R BT 1664-2003 Representation of various image aspect ratios into the image of large screen digital imagery applications that use a 16 9 raster《使用16 9光栅的大屏幕数字成像应用的图像各种纵横比的表示》.pdf

    1、 Rec. ITU-R BT.1664 1 RECOMMENDATION ITU-R BT.1664 Representation of various image aspect ratios into the image of large screen digital imagery1applications that use a 16:9 raster (Question ITU-R 15/6) (2003) The ITU Radiocommunication Assembly, considering a) that the advent of large screen digital

    2、 imagery (LSDI) may lead to some undesirable cropping of the images that have been carefully composed, e.g. at an aspect ratio of 1.66:1 or 1.85:1, when those images are transferred onto an LSDI master with a 16:9 image aspect ratio; b) that good engineering practice demands that the creative intent

    3、 should be preserved; c) that the original image composition should be preserved without cropping; d) that Recommendation ITU-R BR.1374 Scanned area dimensions from 16 mm and 35 mm cinematographic film used in television, specifically addresses ways to transfer films to video, as far as image aspect

    4、 ratios are concerned, by specifying reference values for the dimensions of the area scanned on film during its transfer to television, when the film has been photographed for optical projection, recommends 1 that the original composition of programme images should be preserved in subsequent use of

    5、the programme; 2 that when using an LSDI image system with an aspect ratio of 16:9 for programme presentation, images originally composed with different aspect ratios should be fitted into the 16:9 presentation image in such a way that no part of the original image is cropped, even if this results i

    6、n blanking some parts of the 16:9 presentation image2. 1Large screen digital imagery (LSDI) is a family of digital imagery systems applicable to programmes such as dramas, plays, sporting events, concerts, cultural events, etc. from capture to large screen presentation in high-resolution quality in

    7、appropriately equipped cinema theatres, halls and other venues. 2The examples given in Table 1 (non-normative) provide an indication of the extent to which programme images in various aspect ratios would fill the 16:9 presentation image. 2 Rec. ITU-R BT.1664 Annex 1 (non-normative) Examples of fitti

    8、ng various image aspect ratios into a presentation image with a 16:9 aspect ratio Table 1 provides some non-normative examples of the way images composed with various aspect ratios can be fitted into a presentation image with a 16:9 aspect ratio, without cropping their composition. The examples assu

    9、me the use of spherical projection lenses and a presentation raster of an aspect ratio of 16:93. The assumed operating practice is the following one: Programme images are adjusted to fill the presentation raster height in examples 1, 2 and 3, and to fill the presentation raster width in example 4. T

    10、he areas in the presentation raster that fall outside the programme images are blanked. TABLE 1 Examples of fitting various image aspect ratios into a 16:9 presentation image 3The case of images originally composed for wider aspect ratios can be addressed by horizontally compressing those images int

    11、o the 16:9 scanned raster through the use of anamorphic lenses. They are subsequently decompressed in projection through the use of complementary anamorphic lenses fitted to the digital projector. Example Original image aspect ratio Presentation Appearance 1 1.33:1 (4:3) The 16:9 presentation raster

    12、 has black areas, 12.5% wide, on each side of the original image 2 1.37:1 (Academy) The 16:9 presentation raster has black areas, 11.5% wide, on each side of the original image 3 1.66:1 The 16:9 presentation raster has black areas, 3.5% wide, on each side of the original image 4 1.85:1 The 16:9 presentation raster has black areas, 2% high, at the top and bottom of the original image


    注意事项

    本文(ITU-R BT 1664-2003 Representation of various image aspect ratios into the image of large screen digital imagery applications that use a 16 9 raster《使用16 9光栅的大屏幕数字成像应用的图像各种纵横比的表示》.pdf)为本站会员(diecharacter305)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开