Detection method suited on surface of spherical fruit triggered to collect images based on need and equipment

Abstract

The present invention discloses a demand trigger image acquisition method and equipment suitable for detecting spherical fruit surface. Said equipment includes the following components: coder, chain wheel, chain conveying device, lighting box, trigger controller, camera, image acquisition card, computer and machine visual system formed from fruit rotating-speed controller, etc. Said invention also provides the concrete action and function of the above-mentioned every component, and the concrete steps of said demand trigger image acquisition method.

Description

technical field [0001] The invention relates to an on-demand trigger image acquisition method and device suitable for spherical fruit surface detection. Background technique [0002] At present, the level of post-harvest treatment of fruits in my country is still very low. Most fruits are directly listed without post-harvest treatment after picking, which affects the commodity value of fruits. There are also some fruits that are manually and visually identified and judged according to the grading indicators such as their maturity, surface defects, fruit stem integrity, size, and weight. Therefore, the classification of fruits is relatively subjective, and the efficiency is quite low. It hinders the development of my country's national economy and the improvement of farmers' income. The existing fruit grading equipment mainly uses one or two indicators such as the weight and size of the fruit. The former mainly uses sieve holes, roller gaps, etc., and the latter mainly uses e...

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Problems solved by technology

[0007] These methods cannot guarantee to obtain all the information on the fruit surface: in the mirror reflection method and the up-and-down camera method, the fruit must need a certain support, so it is inevitable that a part of the surface will be blocked, resulting in the inability to obtain all the fruit surface information; In the fruit rolling method, because the diameter of the fruit is not consistent, the image of the fruit is collected at a fixed position. This situation will occur: the angle of the small fruit rolling between two shots is too large, and some surfaces will be taken multiple times. Some surfaces may be missed; while large fruit rolls at too small an angle between shots, some surfaces may be missed

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