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In the field of computer vision, image matching is very important in many applications, such as the object recognition, 3D reconstruction, stereo vision, motion tracking and augmented reality. A method of improving the Opensurf algorithm used in AR for decreasing matching points and mismatch and increasing the calculation speed is proposed.
A portable near-infrared (NIR) spectrometry was developed to predict brix of intact pears nondestructively. The spectra of 190 pears collected in the wavelength range of 800-950nm, were dealt with the preprocessing methods of smooth, derivative and standard normal transformation (SNV). The calibration models for brix were developed by least squares support vector machines (LS-SVM), partial least squares...
An automatic method for identifying different variety of rice seeds using machine vision technology was investigated, and a detection system which was consisted of an automatic inspection machine and an image-processing unit, was also developed. The system could continually present matrix-positioned rice seed to CCD cameras, and singularize each rice seed image from the background. The inspection...
Interrupt response mechanism and the stream interface driver model of Windows CE 5.0 are introduced. In view of high real-time requirements of NC (numerical control) system, the way how to realize the real-time control of embedded NC system is elaborated from the interrupt disposal process of Windows CE. Stream interface driver is adopted to develop the driver of S3C2440A processor's timer and the...
An integrated analog chip tester has been designed. Since we need to test the analog voltage of analog devices, a kernel architecture based on single chip computer (MCU) and AD converter has been designed. In order to solve the possible blight to tester caused by the damaged chips. This paper presents a technology for isolating inside and outside bus, a technology for double power supplies and a technology...
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