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The Research of 3 D Point Cloud Registration Method Based On Regular Hexahedron Color Targets
Yu Guang,Shi Yunbo,Yu Boyang 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.4
Coded structured light measurement is the important method of modern non-contact optical measurement, restricted by the camera field of view, the surfaces to be measured can complete a single perspective measurement, this is the 3 d point cloud registration, point cloud registration can reflect three-dimensional topography on the surface of the object, and it has reached the requirement of comprehensiveness.This paper has built coded structured light 3 d measurement system, to explore 3 d point cloud registration method based on regular hexahedron color targets with high accuracy, fast registration, which can be applied to industrial components comprehensive measuring characteristics.
Anti Crosstalk Ranging Method with Multi Ultrasonic Sensor Based On Chaotic Sequence
Anhua Wang,Yunbo Shi 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.11
Ultrasonic sensor is widely used in robot, automobile, automatic production line and so on, but its detection angle is limited, therefore, multiple ultrasonic sensors are often needed to expand the detection range of distributed structures such as parallel or surround. Multiple ultrasonic probes work at the same time, and very close each other, it will cause crosstalk problems. The chaotic sequence is introduced into the detection signal in the system of ultrasonic receiving and transmitting, it can improve the reliability of detection information and efficiency, realize multi probe synchronously work without crosstalk. Simulation and experimental data show that the system can effectively detect in the range from 0.08 to 4.87 meters, the average error is less than 1.16%, which proves that this method is feasible.
A Kind of Encryption Method of QR Code based on ECA State Ring
Yu Guang,Shi Yunbo,Che Chang 보안공학연구지원센터 2015 International Journal of Security and Its Applicat Vol.9 No.9
In view of the simple keys, time-consuming in encryption and decryption process and the loss of original function characteristics in encrypted image QR two-dimensional code, we adobe a kind of encryption method of QR code based on ECA state ring. In this method, the simple structure, highly parallel of elementary cellular automaton is being used. Operating each pixel point on the quick response code except which can express QR code function information. The simulation results show that the method is faster than two kinds of typical QR code encryption method, and the encrypted image can preserve the original QR code function information, while the safety coefficient is very similar.
Hongxian Yu,Wentao Xu,Yunbo Luo,Jing He,Hongtao Tian,Hui Shi,Xiaohong Mei 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.5
Using a promoter online prediction system, the gene sequence of GroEL protein from Lactococcus lactis ssp. cremoris MG1363 was analysed and a putative promoter, designated as gro, was further studied. Under acidic conditions, gro showed preliminary promoter function by driving the expression of lacZ reporter gene in Escherichia coli DH5α. In addition, gro drove the gene expression of GroEL and green fluorescent protein. In this paper, an acid-inducible promoter was successfully identified. This promoter has a wide prospect in the field of biotechnology.