Key Frame Extraction-Based on CSD features

References summarization Extraction Method for Surveillance Video Based on Color spatial distribution characteristic cise 2009

Similar to the traditional key frame extraction method, the selected features are different.

CSD color Spatial Distribution Features

Divide the pixels in the image into connected and unconnected.

Definition of connection:

When the color is the same as that of the pixel, the connected pixel points form a connected domain,

The number of pixels in this region exceeds the threshold (1%-of the image size ~ 3%,

This area is connected, and the pixels in this area are connected. Otherwise, they are not connected.

Color Space distribution histogram

HC (I) and HNC (I) indicate the number of connected pixels and the number of unconnected pixels when the color value is I.

Similarity calculation:

The calculation example is as follows:

Whether the feature is characterized is to be tested...