Abstract
For autonomous robot navigation on levee in paddy field, it is necessary for the robot to distinguish between rice plant and weed. Our objective is to develop a method to detect rice plant in image of paddy field. We address paddy field in pre-heading term. Distinction between rice plant and weed is a challenging problem because colors of them are very similar. We focused on the fact that rice plant leaves have directional feature in the image and used Gabor filter to capture it. We used images of paddy fields taken by digital camera in this research. We found that Gabor function matched rice plant leaves in the image more strongly when it had nearly vertical direction and on the other hand, it matched weeds in rather many directions. This feature enabled us to develop a detection method based on Gabor filter. The results of experiments showed that our method could function to some extent, but there were still some misjudgment and it took long time to process. We discuss about further improvements.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
The Gabor function matched rice plant leaves in paddy field images more strongly when it had a nearly vertical direction.
- Taxon
- rice plant
Oryza sativae1 - Outcome
- matched rice plant leaves in the image more stronglye1
- Qualifier
- nearly vertical directione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We found that Gabor function matched rice plant leaves in the image more strongly when it had nearly vertical direction”
Claim · model-written summary
The Gabor function matched weeds in rather many directions.
Verbatim
e1“it matched weeds in rather many directions”
Claim · model-written summary
The Gabor-filter-based rice plant detection method functioned to some extent in experiments on paddy field images.
Verbatim
e1“The results of experiments showed that our method could function to some extent”
Claim · model-written summary
The detection method still made some misjudgments.
Verbatim
e1“there were still some misjudgment”
Claim · model-written summary
The detection method took a long time to process.
Verbatim
e1“it took long time to process”