| 发明名称 |
METHOD AND DEVICE FOR DETECTING STRAIGHT LINE |
| 摘要 |
The present disclosure relates to a method and a device for detecting a straight line. The method includes: acquiring a Histogram of Oriented Gradients (HOG) feature set for each respective pixel point in an image, wherein the HOG feature set is configured to reflect straight line characteristics of a localized portion where the pixel point locates; determining at least one candidate direction of a straight line to be detected according to the HOG feature sets of the respective pixel points; and detecting a direction and a position of the straight line precisely according to the candidate direction. The present disclosure efficiently avoids the errors caused by binarization, and increases the accuracy of the detection of straight line. |
| 申请公布号 |
US2015242699(A1) |
申请公布日期 |
2015.08.27 |
| 申请号 |
US201414526521 |
申请日期 |
2014.10.29 |
| 申请人 |
Xiaomi Inc. |
发明人 |
Wang Baichao;Wang Lin;Chen Zhijun |
| 分类号 |
G06K9/46 |
主分类号 |
G06K9/46 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for detecting a straight line, comprising:
acquiring a Histogram of Oriented Gradients (HOG) feature set for each respective pixel point in an image, wherein the HOG feature set is configured to reflect straight line characteristics of a localized portion where the pixel point locates; determining at least one candidate direction of a straight line to be detected according to the HOG feature sets of the respective pixel points; and detecting a direction and a position of the straight line precisely according to the candidate direction. |
| 地址 |
Beijing CN |
