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The Study Of Ginseng Grade Evaluation Based On Visual Technology Of Computer

Posted on:2006-04-30Degree:MasterType:Thesis
Country:ChinaCandidate:B Q HuoFull Text:PDF
GTID:2121360155452990Subject:Agricultural products processing and storage
Abstract/Summary:PDF Full Text Request
The ginseng is a kind of important crude drugs, and a kind of important export commodities too. The main purpose of what the ginseng is graded, is for the level of the scientific medical value of explanation ginseng, thus the convenient medical circle determines its service orientation according to different grades. Ginseng while determining, for being correct to weigh quality its , must adopt various methods to determine, apply ginseng method that quality determine have sense organ determine law , microscope determine law , chemistry determine law and living beings determine law ,etc. Usually,use sense organ determine law is it determine to go on more at present. The appearance quality testing of the ginseng is mainly that an artificial way is measured, the main shortcoming of the artificial way is: â‘ Need much manpower, labour intensity is great. â‘¡The hierarchical standard is realized artificially and difficultly, the hierarchical precision is not high. Grade artificially, observing with the eyes for a long time, the quantization that can't make the hierarchical standard accurate, and with sorters' state and mood, the situation graded may have very great floating. Compared with the situation that artificial, the major advantage of the vision of the computer is to measure the precision high, easy to computer deals with, so developing the grade evaluation system of ginseng based on vision technology of the computer the visual signal, give full play to the vision specialty of the computer, incorporate the artificial intelligence mode and differentiate the method. With the high-speed development of the technology of the computer, use the vision technology of the modern computer, obtain, number value, store and deal with a picture already no a difficult matter. It has a quite ripe level abroad that the fruit based on recognition technology of the picture is graded, in order to measure agricultural products with the picture treatment technology of the computer, has appraised the quality of agricultural products and opened up a new way. At present, artificial neural network distribution stored, undertaken the parallel processing of and since characteristics of the learning ability are widely used in many aspects with information. Compared with traditional method the pattern-recognition of the artificial neural network, have remarkable superiority: 1. Distributed and store and fault-tolerant. The advantage of this kind of memory way lies in if some information is incomplete, then or will lose or even to damage have wrong information, it can still resume originally correct intact information , the system could run , the ones that appear strongly are stupid and excellent. 2. The neuron network runs side by side on the structure, and each unit of the network can carry on the similar treatment course at the same time. This can not be also done at present according to existing and traditional computer and artificial intelligence technology. 3 Study by oneself, since the organization and adaptivity. The neuron network is that one kind is turned into structure system, happens to finish to the adaptation of the environment and learning ability to the external things, the network and train to organize by oneself in order to meet the needs of different information processing through studying. This text applies the vision technology of the computer to the systematic research of grade evaluation of the ginseng, adopt such methods as artificial neural network, pattern process and computer vision technology, etc., Combine existing method and knowledge, finish the research systematic in grade evaluation to the ginseng. This text carries on the following work mainly, get relevant conclusions: 1 Have probed into the information processing of the ginseng picture, has carried on the detailed argumentation to the pretreatment of the picture. Pictures'smooth main purpose is to reduce noise of picture , compare with mean value strains waves and hitting value strain wave two kinds of algorithms here, have analyzed the pluses and minuses of two kinds of algorithms and suitable terms; Algorithm to draw edge, it is, according with edge mathematics operator of picture element , edge of characteristic to happen to examine, 5 kinds of daily operators that this text has introduced the edge and measured , and the corresponding algorithm of programming realization, have drawn the corresponding result picture. 2 Introduce relevant standard of ginseng, get several parameter deal with characteristic parameter, ginseng of picture as computer on the relevant and...
Keywords/Search Tags:Ginseng, pattern-recognition, pattern process, vision of the computer, neural network
PDF Full Text Request
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