Morphological Automatic Triangle Orientation Detection

摘要

A system and method are provided for assessing a resolution of an optical sensor. An image is obtained from the optical sensor. A target area is selected from the image. The selected area is subjected to a thresholding process to generate a binary image. Pixels at a center of the binary image are tagged. The remaining pixels of the binary image are looped through, where pixels that are not already tagged, are touching a tagged pixel, and are of the same color of previously tagged pixels are tagged. A plurality of distances associated with each corner of the binary image is calculated from the corner to the nearest tagged pixel in a row or column of pixels. At least two shortest distances of the calculated plurality of distances are selected to determine an orientation of an object defined by the tagged pixels in the generated binary image.

主权项

1. A method of assessing a resolution of an optical sensor, the method comprising:
obtaining an image from the optical sensor; selecting a target area from the obtained image; thresholding the selected area to generate a binary image; tagging pixels at a center of the generated binary image; looping through remaining pixels of the generated binary image, tagging pixels that are not already tagged, touching a tagged pixel, and are of the same color of previously tagged pixels; calculating a plurality of distances associated with each corner of the generated binary image from the corner to the nearest tagged pixel in a row or column of pixels; selecting at least two shortest distances of the calculated plurality of distances; and determining an orientation of an object defined by the tagged pixels in the generated binary image from the selected distances.