And Standard Leaf. Oak Species Leaf Standardized Parameters Automatically Fit The Development Of Software Systems

Quercus as the more widely distributed in Shandong province, with high economic and ecological value of trees, has always been a plant, an important object of ecological research, and leaf characteristics of Quercus for scientific research, is still relatively rare. Leaves as the plant growth and development of vital organs, in the field of plant taxonomy application also has a very high value, the use of plants for rapid classification of leaf characteristics on plant taxonomy has become a hot research field, leaf morphology is the geometry become an important basis for identification of plants. Eccentricity, shape parameter, the degree rectangular, circular, area bump ratio, convex perimeter ratio, sphericity, aspect ratio and other dimensionless axial leaf shape parameters, because their leaf area and the direction from the impact of describe the geometric features have become an important indicator of leaf shape.The experimental study area is the Laoshan North nine water. The experiment selected oak tree, Quercus acutissima, Quercus, Quercus, Brachypodium serrata, Quercus mongolica leaves mature complete the study. In mid-August, mid-September, early October,10 mid-May, leaves collected in this experiment. Experiment to get a lot of raw data. Through reliability analysis, data distribution test, and other selected indicators of central tendency, we choose the sample data in mid-October as the standard study. According to the formula, we calculated the 6 species of leaf characteristics of the standard parameters. Oak tree leaf: the value of eccentricity is 1.748701, the shape parameter value is 0.523866, the value is the ratio of the circumference of concave and convex 1.067455, circularity value is 0.480487, the value of the rectangle is 0.609189 degrees, sphericity value is 0.596405; Quercus leaves:value of eccentricity is 3.903409, the shape parameter value is 0.388002, the value is the ratio of the circumference of concave and convex 1.062586, circularity value is 0.234665, the value of the rectangle is 0.613013 degrees, sphericity value is 0.436087; glandulifera serrata leaves:value of eccentricity is 2.995144, the shape parameter value is 0.483358, the value is the ratio of the circumference of concave and convex 1.071319, circularity value is 0.303456, the value of the rectangle is 0.613251 degrees, sphericity value is 0.552902; Quercus leaves:value of eccentricity is 2.796914, the shape parameter value is 0.453843, the value is the ratio of the circumference of concave and convex 1.075128, circularity value is 0.322761, the value of the rectangle is 0.569906 degrees, sphericity value is 0.523206; cork oak leaves:value of eccentricity is 2.998704, the shape parameter value is 0.503157, the value is the ratio of the circumference of concave and convex 1.056455, circularity value is 0.301067, the value of the rectangle is 0.650621 degrees, sphericity value is 0.558131; Mongolian oak leaves:value of eccentricity is 1.755467, the shape parameter value is 0.597519, the value is the ratio of the circumference of concave and convex 1.059932, circularity value is 0.484615, the value of the rectangle is 0.600897 degrees, the value of sphericity is 0.668842.According to the different sampling locations, sampling methods will be divided into 12 species. To calculate the characteristic parameters of the standard reference value of the leaf, each of 60 randomly selected sampling methods to calculate the average leaf blade characteristic parameters, two compared to the value, the difference is smaller, indicating that the more representative of the overall level, the sampling way better. The results show that the number of samples under the conditions of 60, closer to the upper canopy, main branch, the top position of the student leaves, the closer the overall level of parameters; ignored canopy factors, and the students closer to the main branch near the top location of the leaves, the closer the overall level of parameters.This study also developed a leaf programming automatic matching software system. The software can automatically sample pretreatment, extraction of leaf margin, leaf shape until the final fitting. The fitting principle leaf is defined as:single leaf processing, leaf basis points to the origin of coordinates, where each pixel as the leaf margin leaf margin point to point all the leaf margin point to the leaf angle and radial coordinate origin radial distance parameter value, record the information for the leaf margin; all leaves after leaf margin information collection, take the same point on the leaf margin point to the radial point leaves the average radial distance, as the point of this perspective leaf margin the standard position; all of the standard after a good position to determine the connection is the standard leaf. Knowledge of plant taxonomy structure to this software, you can realize the automation of plant classification, which will be the next hot spot of research and development.