Acquisition device for acquiring high-definition images of rice planthoppers and rapid splicing method

Abstract

The invention discloses a device for acquiring high-definition images of rice planthoppers and a rapid splicing method, and relates to the technical field of image processing, in particular to the technical field of acquisition and rapid image splicing of the high-definition images of the rice planthoppers. The invention comprises a pore plate for bearing insects, the pore plate is equally dividedinto at least four areas, a camera is arranged above each area to obtain four fields of view, namely a first camera corresponding to a first field of view, a second camera corresponding to a second field of view, a third camera corresponding to a third field of view and a fourth camera corresponding to a fourth field of view; and an overlapping region is formed between every two adjacent view fields. Feature extraction is performed on the image of each view field, registration is performed on the extracted image features, homography matrix solving is performed on the registered image, and fusion and splicing are performed the solved images. The image acquisition coverage area is wide, subsequent splicing is facilitated, and a clear rice planthopper image can be obtained under the condition that the depth-of-field requirement of the camera is met.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to the technical field of high-definition image acquisition and fast image splicing of rice planthoppers. Background technique [0002] Rice planthopper is one of the common pests in the rice growth process. If the rice planthopper is not controlled and predicted early, the large number of rice planthoppers will often cause a large reduction in the yield of rice and other crops. Rice planthopper is a piercing-sucking pest. During the whole production process of rice, it absorbs rice plants and sucks rice juice, causing rice plants to turn yellow and dry, and in severe cases cause rice plants to die. Every year in my country, rice production is reduced due to rice planthopper pests and other reasons. At the same time, a large number of pesticides are used to control pests and diseases, which will also bring certain pesticide residues. Therefore, intelligent prediction and f...

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Problems solved by technology

[0007] Both of the above two patent applications have the following problems: the acquisition interval of a single image acquisition device is limited, and due to the small size of the rice planthopper, there is a contradiction between the resolution of a single camera and the field of view of the camera, and there is no way to make the image acquisition system acquire more detailed images. data that can objectively reflect the actual number of rice planthoppers with a larger camera field of view

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