Object recognition method and apparatus for determining the pres

Details Object recognition method and apparatus for determining the pres Object recognition method and apparatus for determining the pres

1991-07-08

1993-11-16

Razavi, Michael T.

Image analysis

Histogram processing

For setting a threshold

382 18, 382 27, 382 33, G06K 900

Patent

active

052630986

ABSTRACT:
An object recognition apparatus for determining the presence and shape of an object in an image has a multiplier, an adder and a memory for obtaining histograms relative to densities for each of specified partial areas in the image. The histogram of each partial area is stored in the memory at addressed determined by adding an actual density of each of pixels in the partial area to a number indicating the partial area multiplied to be shifted to the left by the number of quantization bits. In a micro computer of the apparatus, the histogram for each partial area compared with a corresponding reference histogram which indicates that an object is present in an at least one part of the partial area. Based on a comparison result, the micro computer determines whether the object is present or not in each partial area. Then, based on the combination of partial areas where it is determined that the object is present, the shape of the object is evaluated.

REFERENCES:
patent: 4809344 (1989-02-01), Peppers et al.
patent: 4941192 (1990-07-01), Mishima et al.

Affiliated with

Also associated with

Rating

Object recognition method and apparatus for determining the pres does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Object recognition method and apparatus for determining the pres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Object recognition method and apparatus for determining the pres will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-27497