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AI或将淘汰绿幕 YouTube 利用 AI 工具来替代绿幕特效

2018-3-6 07:45| 投稿: xiaotiger |来自: 互联网

摘要: 抠图换背景技术到现在已经有着几十年历史,但在通常情况下,这种工作是相当费时费力的,并且要想高效快速后期处理,还需要绿幕之类的工具辅助。在好莱坞科幻大片上,绿幕大范围使用,抠图换背景也是必不可少的。但即 ...

抠图换背景技术到现在已经有着几十年历史,但在通常情况下,这种工作是相当费时费力的,并且要想高效快速后期处理,还需要绿幕之类的工具辅助。在好莱坞科幻大片上,绿幕大范围使用,抠图换背景也是必不可少的。但即使使用了绿幕,在人力物力上的消耗也是不少。AI能够减少这些麻烦。

为了让影视制作简单点,谷歌研发出了可以在手机端就实时抠背景的AI工具。这个实时抠背景的AI工具目前只出到Beta版,只在YouTube移动端上有。

据Engadget报道,Google 最新推出小规模试用计划,让 YouTuber 可以透过 AI 和机器学习技术,把影片背景更换过程简化得有如应用 Instagram 滤镜一样。各位喜欢利用手机录制影片的朋友,你的作品快将能加入专业制作级的效果了。

Google 为这技术释出了详细的技术文件(https://research.googleblog.com/2018/03/mobile-real-time-video-segmentation.html),有兴趣的朋友可以参考,简单而言,影片不再需要在绿幕工作室里拍摄,轻松利用 AI 的威力就能更换背景。

虽说这试用计划只有小部分的 YouTube 创作者帐户能加入,但能用到的特效却已经不少。在使用影片中可以看到使用者简单如 Instagram 或 SnapChat 那样选用不同滤镜。

虽然应用效果仍未完美,像是人物周遭泛起有如光环一般的边缘,但看到如此实时的效果,也已经体验到 AI 的能力,相信 Google 会适时改进效果,在正式推出之前完善这产品吧。

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