Image analysis – Image enhancement or restoration – Edge or contour enhancement
Patent
1992-11-05
1996-05-21
Razavi, Michael T.
Image analysis
Image enhancement or restoration
Edge or contour enhancement
382199, G06T 520
Patent
active
055197930
ABSTRACT:
A computer vision system and image processing method is provided for accurately determining the size and shape of coarsely textured, irregular and layered pieces of ore and the like. The system comprises a camera for producing an image of the ore, a digitizer for digitizing the camera image, and a video processor for processing the digitized image. An optional digital computer may be employed for controlling the overall system and for determining the dimensions, mass, and surface area of each piece of ore based on the processed image. The digitizer breaks down the camera image into a plurality of pixels and a set of line-spin masks, each including a line of negative unit or center weighted values and a central positive value equal to the absolute value of the negative values and each with the line disposed in a different orientation, are multiplied by the digital values of each of the pixels to determine new values for the pixels. A pixel field made up of lowest pixel values is used to determine particle sizes and shapes.
REFERENCES:
patent: 3805035 (1974-04-01), Serre
patent: 3936800 (1976-02-01), Ejiri et al.
patent: 4121294 (1978-10-01), Galanis et al.
patent: 4377340 (1983-03-01), Green et al.
patent: 4660086 (1987-04-01), Lemelson
patent: 4661985 (1987-04-01), Akutsu
patent: 4817184 (1989-03-01), Thomason et al.
patent: 4916640 (1990-04-01), Gasperi et al.
patent: 4958374 (1990-09-01), Tokita et al.
patent: 5023714 (1991-06-01), Lemelson
patent: 5027422 (1991-06-01), Peregrim et al.
patent: 5050227 (1991-09-01), Furusawa et al.
patent: 5068908 (1991-11-01), Inoue et al.
patent: 5212740 (1993-05-01), Paek et al.
patent: 5289373 (1994-02-01), Zarge et al.
Young et al. "Handbook of Pattern Rec and Image Processing", Academic Press, 1986, pp. 216-223.
Gonzalez et al. "Digital Image Processing", Addison-Wesley 1992, pp. 414-429.
Levine, Vision in Man and Machine, McGraw-Hill, 1985, pp. 176-188.
Chang Jon
Koltos E. Philip
Razavi Michael T.
The United States of America as represented by the Secretary of
LandOfFree
Apparatus and method for computer vision measurements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for computer vision measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for computer vision measurements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2045783