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标题: 使用 NVIDIA CUDA 执行视频 FRC （帧率转换） [打印本页]

作者: Edison 时间: 2010-9-5 01:39
标题: 使用 NVIDIA CUDA 执行视频 FRC （帧率转换）
http://www.ciridiom.com/Carvery.html

Card	Nr. of cards	Total card cost	Output FPS, 1080p 50 to 60 conversion	Output FPS, 1080p slow-mo
GTX 260	1	$185	18	19
GTX 470	1	$350	30	31
GTX 470	2	$700	42	44
GTX 480	1	$480	37	39
GTX 480	2	$960	52	55

4. The Benefits of Frame-Rate Conversion

Video can be understood as a 2D scene in the real world carved into a sequence of slices or frames. These frames are implicitly sampled at a known, regular time interval, and are intended to be played back at a certain number of frames/sec by a display device. However, if they are played back (rendered) at a faster rate, then the action appears faster, but that is a playback artifact, not Pro-Aperty of the video sequence itself.

FRC is the process whereby a sequence of 2D input frames can be used to generate a new sequence of 2D output frames, but with a different time interval between each output frame. As a consequence, if a point in time of a desired output frame does not lie exactly at an input frame time, then a new frame (that never existed in the input sequence) needs to be generated to correspond to that time instant. Objects may have moved from the input frame immediately prior to that time to the input frame immediately following it. Therefore the new frame has to be reconstructed by interpolating where those objects would have appeared had the camera sampled at that same time instant. This type of interpolation requires true frame-to-frame motion estimation on each pixel in the image, so it is very compute-intensive.

作者: PaulWong 时间: 2010-9-5 01:46
有了谷歌翻译，看您的文章，眼不痛了，腰不酸了，身子骨越来越有劲了。

作者: Edison 时间: 2010-12-27 18:02
最新结果：

Card	Nr. of cards	Total card cost	Avg FPS out, 1080p 50 to 60	Avg FPS out, 1080p slow-mo
GTX 260	1	$185	18	19
GTX 470	1	$240	30	35
GTX 570	1	$350	37	43
GTX 580	1	$500	42	49
GTX 470	2	$480	60	68
GTX 570	2	$700	74	84
GTX 580	2	$1000	84	96

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