Patent ID: 8712149

Claim:
A foreground detection apparatus, comprising: a foreground characteristic value calculation module, calculating a foreground characteristic value by using an image intensity of each of a plurality of pixels in a target image and a background intensity of a corresponding pixel in a background model; a first filter, determining a first threshold and a second threshold according to at least one scenic factor for capturing the target image, and filtering out a plurality of non-foreground pixels having a corresponding foreground characteristic value between the first threshold and the second threshold from pixels in the target image; and a second filter, determining an image difference condition and a chroma similarity condition according to the at least one scenic factor for capturing the target image, filtering out the plurality of non-foreground pixels having the corresponding foreground characteristic value satisfying the image difference condition and the chroma similarity condition from the pixels left by the first filter, and serving remaining pixels as a plurality of foreground pixels.