Results 211 to 220 of about 76,204 (254)
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Optics and Lasers in Engineering, 2013
Abstract In this paper, an external parameter calibration method for multiple vision sensors (MVS) with non-overlapping fields-of-view (FOV) using spot laser is presented. The main procedures of the method are as follows: Spot laser projects laser beam across the FOVs of multiple vision sensors, the spot laser is placed at least two times.
Zhen Liu, Xinguo Wei, Guangjun Zhang
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Abstract In this paper, an external parameter calibration method for multiple vision sensors (MVS) with non-overlapping fields-of-view (FOV) using spot laser is presented. The main procedures of the method are as follows: Spot laser projects laser beam across the FOVs of multiple vision sensors, the spot laser is placed at least two times.
Zhen Liu, Xinguo Wei, Guangjun Zhang
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SPIE Proceedings, 2014
Stereo vision is the key in the visual measurement, robot vision, and autonomous navigation. Before performing the system of stereo vision, it needs to calibrate the intrinsic parameters for each camera and the external parameters of the system. In engineering, the intrinsic parameters remain unchanged after calibrating cameras, and the positional ...
Liqiang Wang, Zhen Liu, Zhonghua Zhang
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Stereo vision is the key in the visual measurement, robot vision, and autonomous navigation. Before performing the system of stereo vision, it needs to calibrate the intrinsic parameters for each camera and the external parameters of the system. In engineering, the intrinsic parameters remain unchanged after calibrating cameras, and the positional ...
Liqiang Wang, Zhen Liu, Zhonghua Zhang
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Advanced Materials Research, 2014
To Solve how to Calibrate Rapidly and Accurately in Camera, it Proposed the Method of Hyperchaos Least Square and Implemented by Labview through Analyzing the Camera Model and the Calibration Principle. it is that Measuring Image Coordinate and World Coordinate, then Calculating the Important Camera Internal and External Parameters which are R Rotation
Kai Xia, Min Yang, Li Liu
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To Solve how to Calibrate Rapidly and Accurately in Camera, it Proposed the Method of Hyperchaos Least Square and Implemented by Labview through Analyzing the Camera Model and the Calibration Principle. it is that Measuring Image Coordinate and World Coordinate, then Calculating the Important Camera Internal and External Parameters which are R Rotation
Kai Xia, Min Yang, Li Liu
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A flexible method for calibrating external parameters of two cameras with no-overlappingFOV
SPIE Proceedings, 2016ABSTRACT A new flexible method to calibrate the external parameters of two cameras with no-overlapping field of view ( FOV ) is proposed in our paper. A flexible target with four spheres and a 1 D bar is designed. All spheres can move freely along the bar to make sure that each camera can capture the image of two spheres clearly.
Mingwei Shao, Zhenzhong Wei, Mengjie Hu
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Analytica Chimica Acta, 2009
The octane number rating of a gasoline gives an indication of the gasoline performances, under various engine conditions. Two different ratings are included: Research Octane Number (RON) and Motor Octane Number (MON). The standard laboratory method for octane number determination is the knock engine method in which a gasoline is burned and its ...
Amat-Tosello, S +2 more
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The octane number rating of a gasoline gives an indication of the gasoline performances, under various engine conditions. Two different ratings are included: Research Octane Number (RON) and Motor Octane Number (MON). The standard laboratory method for octane number determination is the knock engine method in which a gasoline is burned and its ...
Amat-Tosello, S +2 more
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SPIE Proceedings, 2016
The measurement accuracy of non-invasive blood glucose concentration (BGC) sensing with near-infrared spectroscopy is easily affected by the temperature variation in tissue because it would induce an unacceptable spectrum variation and the consequent prediction deviation.
Tongshuai Han +5 more
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The measurement accuracy of non-invasive blood glucose concentration (BGC) sensing with near-infrared spectroscopy is easily affected by the temperature variation in tissue because it would induce an unacceptable spectrum variation and the consequent prediction deviation.
Tongshuai Han +5 more
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European Journal of Nuclear Medicine, 1994
Using calibrated point sources as an external standard to convert single-photon emission tomography (SPET) brain counts into absolute values of regional brain uptake (rBU) of technetium-99m hexamethylpropylene amine oxime (HMPAO), the relative contribution of different parameters to interindividual variability of cerebellar rBU was examined in 33 ...
Dierckx, R.A. +5 more
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Using calibrated point sources as an external standard to convert single-photon emission tomography (SPET) brain counts into absolute values of regional brain uptake (rBU) of technetium-99m hexamethylpropylene amine oxime (HMPAO), the relative contribution of different parameters to interindividual variability of cerebellar rBU was examined in 33 ...
Dierckx, R.A. +5 more
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Acta Horticulturae, 2018
Consumer preference for fruit without disorder influences purchase of fruit at both local and international markets. Recent trends in horticulture show that consumer preference is influenced by assurance that external appearance is linked with rewarding internal sensory quality.
O.O. Olarewaju +5 more
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Consumer preference for fruit without disorder influences purchase of fruit at both local and international markets. Recent trends in horticulture show that consumer preference is influenced by assurance that external appearance is linked with rewarding internal sensory quality.
O.O. Olarewaju +5 more
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A calibration method of external parameters of 2D laser in rotary 3D scanning
Optoelectronics Letters, 2022Shihao Wang, Zhifeng Qiao, Jiahao Huang
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Robot path planning based on external parameter calibration and parameter fusion
2021 International Conference on Neural Networks, Information and Communication Engineering, 2021openaire +1 more source