The diameter parallel to the image-plane is taken as characteristic diameter,by which the depth information for the target plane can be got from elliptic figures on the image-plane easily,so the solution of the inverse-perspective-transformation can be made simple and accurate.

Study on the Characteristics Of Staple Diameter Profile of Domestic Greasy Wool;

Based on studies of staple and single fibre strength and staple diameter profiles on domestic greasy wool,the raw wool fibre middle breaking force or strength has been discussed and measured to evaluate the tensile ability of raw wool in this paper,and the relationship between mid-breaking force and top processing performance are also observed.

The paper investigates the runoff characteristic of surface rock soil on soil - discharged of large opencut coal mine for directing soil - discharged technology and land reclamation - growing.

According to the aggravation status of water loss and soil erosion in the purple soil region,the authors took Hemingguan watershed of Nanbu county in Sichuan province as study region and investigated the watershed runoff characteristic of the watershed.

The results show that the sequence length affects the linear decomposition results of the runoff significantly; the DCLD method can be used to analyze the runoff characteristics based on the low and high change of annual runoff time series and there were markedl

This paper probes into two methods for calculating the character path length based on small world network, and inspects and verifies the actual results of the two methods under Chinese literature environment with examples.