Estimation of the Dimensions of Horticultural Products and the Mean Plant Height of Plug Seedlings Using Three-Dimensional Images

Abstract

This study was conducted to estimate the dimensions of horticultural products and the mean plant height of plug seedlings using three-dimensional (3D) images.Two types of camera, a ToF camera and a stereo-vision camera, were used to acquire 3D images for horticultural products and plug seedlings.The errors calculated from the ToF images for dimensions of horticultural products and mean height of plug seedlings were lower than those predicted from stereo-vision images.A new indicator was defined for determining the mean plant height of plug seedlings.Except for watermelon with tap, the errors of circumference and height of horticultural products were 0.0-3.0%and 0.0-4.7%,respectively.Also, the error of mean plant height for plug seedlings was 0.0-5.5%.The results revealed that 3D images can be utilized to estimate accurately the dimensions of horticultural products and the plant height of plug seedlings.Moreover, our method is potentially applicable for segmenting objects and for removing outliers from the point cloud data based on the 3D images of horticultural crops.

Code and data availability

The full-text asset investigation has not produced a conclusive result yet.

No evidence-backed public reproduction asset is currently recorded.