| With the rapid development of computers and related equipment,computer graphics and image science as an independent research object has developed for more than 40 years,and is widely used in information transmission,conversion and algorithm optimization.This article is divided into three parts to discuss the relevant content.One is to improve the P curves.Because the interpolation of barycenter coordinates can reduce,magnify,translate and rotate graphics,This paper analyses the function of mean barycenter coordinate in P curves,and introduces a new domain polygon to improve the local conformity and controllability of P curves.In Chapter 2,the properties of barycentric coordinates on rectangular polygons are studied.On this basis,elliptic polygons and diamond polygons are introduced to improve the shape preservation and local controllability of P curves,respectively.In Chapter 3,a geomorphological recognition system based on Tesseract_OCR is developed.The system takes the submarine landforms captured by small cameras as the research object,and takes the deep sea as the shooting environment adapted to the movement of small cameras.In this system,surveyors only need to select the corresponding rock and biological species,then use Tesseract_OCR to automatically identify and record the information stamp fields to generate the corresponding table files.This method has changed the inefficient way of manual identification and manual recording of geomorphological features,improved data integrity and statistical comprehensiveness,and greatly reduced time and human costs.The technical difficulty of this subject is to extract and recognize the text of information stamp completely.In Chapter 4,this paper proposes Haar cascade and YOLO neural network to solve the problem of tilted license plate location.Gradient calculation and multi-level binary fitting are used to correct the tilted license plate,which improves the positioning rate and correction rate of tilted large angle license plate. |
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