Differential motion detection method using background image

Details Differential motion detection method using background image Differential motion detection method using background image

H - Electricity

04

N

H04N 7/18 (2006.01) G06T 7/20 (2006.01)

Patent

CA 2151079

A differential/absolute value image is derived by calculating an absolute value of each pixel in an image produced by subtracting a background image from an input image. A mean value and a variance of a pixel in the differential/absolute value image are calculated from the levels of pixels included in a small region on the differential/absolute value image which has the pixel located at the center thereof. The calculated mean value and variance of the pixel are used to distinguish whether the pixel is a pixel included in a moving object existing region, a background region, or an input image sudden change region. A method of updating the background image is changed in accordance with whether the pixel is a pixel included in the moving object existing region, the background region, or the input image sudden change region.

On obtient une image de valeur différentielle/absolue en calculant une valeur absolue de chaque pixel d'une image produite en soustrayant d'une image de fond d'une image d'entrée. Une valeur moyenne et une variance d'un pixel de l'image de valeur différentielle/absolue sont calculées à partir des niveaux des pixels d'une petite zone de ladite image, dont le pixel en question marque le centre. La valeur moyenne et la variance du pixel calculées servent à déterminer si le pixel fait partie d'une zone existante d'un objet mobile, d'une zone d'arrière-plan ou d'une zone de modification soudaine de l'image d'entrée. Une méthode de mise à jour de l'image de fond est modifiée selon que le pixel fait partie de l'une ou l'autre de ces zones.

Affiliated with

Also associated with

Rating

Differential motion detection method using background image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential motion detection method using background image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential motion detection method using background image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1842857