几种鼬科动物毛绒显微结构观察

采集了黄鼬、石貂、青鼬、艾虎和鼬獾等5种鼬科动物体侧部毛绒样品,用快速制片法进行了毛纤维横切片及纵向显微观察,并比较了5种鼬科动物的毛纤维的组织结构。分析发现,不同动物的毛纤维组织结构存在一定的差异。黄鼬、石貂、黄、艾虎和猸子皮的毛纤维均有髓腔,但髓腔的分布存在差异,且鳞片层的分布存在差异,横切面的形状除了猸子毛纤维呈纺锤形外,其他几种均为圆形或椭圆形。对不同动物的鉴别有一定的借鉴作用。     

皮革不同部位柔软度量化表征的研究

为研究皮革柔软度量化表征方法，本文测定了皮革颈部、皮心、腹部和臀部的柔软度。结果表明，腹部的柔软度极显著（P〈0．01）大于其它各部位的柔软度，而臀部的柔软度最小。     

A non-contact real-time measurement of lamp dimension based on machine vision

The scintillation indices(SIs)of Gaussian beams and vortex beams propagating in turbulent atmosphere are investigated experimentally.It is shown that with the increase of propagation distance,the SI of Gaussian beam around optical axis increases gradually,but the SI of vortex beam with topological charge of 4 increases,achieves the maximum value at a fixed distance,and then decreases as the continued increase of propagation distance.The SI of vortex beam can be smaller than that of Gaussian beam under certain conditions.     

Research on high-precision hole measurement based on robot vision method

A high-precision vision detection and measurement system using mobile robot is established for the industry field de- tection of motorcycle frame hole and its diameter measurement. The robot path planning method is researched, and the non-contact measurement method with high precision based on visual digital image edge extraction and hole spatial circle fitting is presented. The Canny operator is used to extract the edge of captured image, the Lagrange interpolation algorithm is utilized to determine the missing image edge points and calculate the centroid, and the least squares fitting method is adopted to fit the image edge points. Experimental results show that the system can be used for the hi gla-precision real-time measurement of hole on motorcycle frame. The absolute standard deviation of the proposed method is 0.026 7 mm. The proposed method can not only improve the measurement speed and precision, but also re- duce the measurement error.     

A color phase shift profilometry for the fabric defect detection

For fabric defect identification in the textile industry, a three-dimensional （3D） color phase shift profilometry （CPSP） method is proposed. The detecting system is mainly composed of one CCD camera and one digital-light-processing （DLP） projector. Before detection, the system should be calibrated to make sure the camera parameters. The CPSP color grating is projected to the measured fabric by DLP projector, and then it is collected by CCD camera to obtain the grating phase. The 3D measurement can be completed by the grating phase difference. In image acquisition, only invariable grating is projected to the object. In order to eliminate the interference from background light during the image acquisition, the brightness correction method is researched for improving the detection accuracy. The experi- mental results show that the false rate of detecting the fabric defects is 5.78%, the correct rates of detecting the fabric defects of hole and qualified fabric are both 100%, and the correct rates of detecting the fabric defect of scratch and fold are 98% and 96%, respectively. The experiment proves that the proposed method can accurately identify fabric defects.     

对QB/T 2713-2005《皮革收缩温度的测定》的思考

皮革收缩温度是检验皮革产品耐用性能的一个重要指标，但是在执行QB/T2713—2005《皮革收缩温度的测定》时，却发现存在很多问题。针对它的不足，分别从仪器结构、测定方法、判定依据三个方面进行了分析和思考。     

Steering knuckle diameter measurement based on optical 3D scanning

Three-dimensional（3D） modeling of medical images is a critical part of surgical simulation. In this paper, we focus on the magnetic resonance（MR） images denoising for brain modeling reconstruction, and exploit a practical solution. We attempt to remove the noise existing in the MR imaging signal and preserve the image characteristics. A wavelet-based adaptive curve shrinkage function is presented in spherical coordinates system. The comparative experiments show that the denoising method can preserve better image details and enhance the coefficients of contours. Using these denoised images, the brain 3D visualization is given through surface triangle mesh model, which demonstrates the effectiveness of the proposed method.     

有色羊毛纤维的检测

本文有利于科研人员利用CSIRO(澳大利亚联邦科学与工业研究组织)DFD-1型有色纤维检测器从原毛或毛条中分离有色毛纤维。 前