key frames extraction: any references?

[zjmwqx]

it seems the "key frames extraction methods" works well, is there any referring papers I can get more detail info from?

[thealokkr]

You may want to read SAD (Sum of absolute difference)

[zjmwqx]

You may want to read SAD (Sum of absolute difference)

Here is your wiki script :
" Frame extraction and selection criteria for key-frame extraction

Frame that are sufficiently different from previous ones using absolute differences in LUV color-space
Brightness score filtering of extracted frames
Entropy/contrast score filtering of extracted frames
K-Means Clustering of frames using image histogram
Selection of best frame from clusters based on and variance of Laplacian (image blur detection)"

I think "Frame that are sufficiently different from previous ones" is the most important step to follow. But I don't understand why it can generate good key frames. And why the following cluster process and blur detection should be added? Is there any paper to refer?

[thealokkr]

Closing the question as it is not an issue