公开(公告)号：US20190005349A1

公开(公告)日：2019-01-03

申请号：US15989551

申请日：2018-05-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deepak Kumar Poddar ,  Pramod Kumar Swami ,  Prasanth Viswanath

IPC: G06K9/46 ,  G06K9/62 ,  G06K9/00

CPC classification number: G06K9/4609 ,  G06K9/00986 ,  G06K9/4671 ,  G06K9/6202

Abstract: This invention transforms a list of feature points in raster scan order into a list of maxima suppressed feature points. A working buffer has two more entries than the width of the original image. Each entry is assigned to an x coordinate of the original image. Each entry stores a combined y coordinate and reliability score for each feature point in the original list. This process involves a forward scan and a backward scan. For each original feature point its x coordinate defines the location within the working buffer where neighbor feature points would be stored if they exist. The working buffer initial data and the y coordinates assure a non-suppress comparison result if the potential neighbors are not actual neighbors. For actual neighbor data, the y coordinates match and the comparison result depends solely upon the relative reliability scores.