METHOD FOR DETECTING FIELD NAVIGATION LINE AFTER RIDGE CLOSING OF CROPS

WIPO Patent Application WO/2022/047830

A1

A method for detecting a field navigation line after ridge closing of crops. The method comprises the following steps: acquiring a field crop image; respectively performing image color spatial transformation, image binarization, longitudinal integration, neighborhood setting and regional integration calculation on the field crop image so as to obtain a crop row image; detecting an initial middle ridge, a left ridge and a right ridge in the crop row image, so as to obtain central lines of the initial middle ridge, the left ridge and the right ridge; establishing a left (right) crop row central line by using a 1 region between the central line of the left (right) ridge and the central line of the initial middle ridge; and then establishing, by using a 0 region between the left crop row central line and the right crop row central line, a middle ridge central line model to serve as a navigation line of a field operation machine. In the method, navigation information is extracted by using the difference between regional integration of a field crop image, such that detection between closed crop rows is realized.

WO/2017/080451	METHODS AND SYSTEMS FOR BINOCULAR STEREO VISION
JPS60136886	INFORMATION SEGMENTING SYSTEM ON PAPER LEAF

RAO XIUQIN (CN)
LIN YANGYANG (CN)
ZHANG YANNING (CN)
ZHANG XIAOMIN (CN)
YING YIBIN (CN)
YANG HAITAO (CN)
JIANG HAIYI (CN)
ZHU YIHANG (CN)

PCT/CN2020/115253

March 10, 2022

September 15, 2020

Click for automatic bibliography generation  

UNIV ZHEJIANG (CN)

G06K9/00; G01C21/00

CN108710840A	2018-10-26
CN110243372A	2019-09-17
CN104567872A	2015-04-29
CN102999757A	2013-03-27
CN104616014A	2015-05-13
CN103186773A	2013-07-03
US20170068855A1	2017-03-09

HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)

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