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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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