Title:
circle-center-fast-accurate-locating
Download
Description: Abstract：In allusion to the characteristics of the SIFT algorithm in the application of circle center 1ocation，redundant proce—
dure is analyzed and a novel predigested and improved method is proposed．By estimating which pyramid octave the circle
center is in，eliminating the redundancy pyramid octaves，and reducing the keypoints generated from the background by in
creasing the threshold for filtering out the keypoints with low contrast，the steps of assigning assistant orientations of the
keypoints and generating keypoints with assistant orientation has been leaved out．Circle center detection experiments have
been carried out for both standard drcles generated by the computer and the real PCB location mark images．The experiment
results show that，wi thout any penalty of the location accuracy，or robustness to blur，illumination，affine transformation，the
detection efficiency has been improved dramatically with the proposed improved method ．
Key words：circle center location；scale inva
To Search:
File list (Check if you may need any files):
基于SIFT的圆心定位技术.pdf
