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Method for reframing images of a video sequence, and apparatus for reframing images of a video sequence

机译:用于重编视频序列的图像的方法和用于重编视频序列的图像的设备

摘要

A reframing application crops a sub-part of a video source, based on its content. The reframing application involves a visual attention model that produces a saliency map, and a dedicated reframing algorithm that extrapolates a cropping window based on that saliency map. After cropping, only the reframed portion of each video image remains visible. A method for processing images of a video sequence comprises steps of determining (21) parameters of the video sequence, parameters of a previously decoded subsequence of the video sequence and user settings, determining (22) a portion to be cropped according to the determined parameters, and cropping (23) in a reframing step the determined portion for being displayed. An advantage of the invention is that an advanced automatic solution is provided for tuning automatically the reframing parameters, based on the content of a video.
机译:重新格式化应用程序会根据视频内容的内容来裁剪视频源的子部分。重新框架化应用程序涉及一个视觉注意力模型,该模型会生成一个显着性图,以及一个专用的重新形成算法,该算法会根据该显着性图外推裁剪窗口。裁剪后,仅每个视频图像的重新构图部分仍然可见。一种用于处理视频序列的图像的方法,包括以下步骤:确定(21)视频序列的参数,视频序列的先前解码的子序列的参数和用户设置,根据确定的参数确定(22)要裁剪的部分,然后在重新构图步骤中裁剪(23)确定要显示的部分。本发明的优点在于,提供了一种先进的自动解决方案,用于基于视频的内容自动调整重定帧参数。

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