Position measurement of container crane spreader using an image sensor system for anti-sway controllers

2008 ◽  
Author(s):  
H. Kawai ◽  
Y. Choi ◽  
Y. B. Kim ◽  
Y. Kubota
Keyword(s):  
Image Sensor ◽  
Sensor System ◽  
Position Measurement ◽  
Container Crane

MEASUREMENT OF THE SURFACE CONDITION OF A THERMALLY SPRAYED MATERIAL AND ITS THREE-DIMENSIONAL POSITION USING A LASER RANGEFINDER

2008 ◽  
Vol 22 (11) ◽  
pp. 887-892
Author(s):  
KOZO OHTANI ◽  
YOSHIKO SHINHARA ◽  
MITSUO KIDO ◽  
MITSURU BABA
Keyword(s):  
Control Function ◽  
Incident Angle ◽  
Surface Condition ◽  
Three Dimensional ◽  
Image Sensor ◽  
Prototype System ◽  
Laser Rangefinder ◽  
Position Measurement ◽  
Wide Range ◽  
Thermally Sprayed

This paper describes that a measurement method for the surface condition of a thermally sprayed object and its three dimensional position with a laser rangefinder. The feature of this rangefinder is to equip an image sensor which has the ability of simultaneously detecting the position of a light and the incident angle onto the sensor. Moreover, the sensor has an autonomous exposure time control function. Therefore, our laser rangefinder can detect the 3D positions of an object with unknown reflectance. We constructed the prototype system and did some experiments to verify the proposed method. The error of the 3D position measurement was Δ z / z =0.7%. As concerns the detection of the surface condition, we could identify three types of surface roughness of a measured object with accuracy. The proposed method has great potential for a wide range of industrial inspections.

Accuracy Performance of a Time-of-Flight CMOS Range Image Sensor System

2009 ◽  
Vol 58 (5) ◽  
pp. 1563-1570 ◽  
Author(s):  
F. Leonardi ◽  
D. Covi ◽  
D. Petri ◽  
D. Stoppa
Keyword(s):  
Time Of Flight ◽  
Image Sensor ◽  
Sensor System ◽  
Range Image ◽  
Accuracy Performance

A multimodal image sensor system for identifying water stress in grapevines

2012 ◽  
Author(s):  
Yong Zhao ◽  
Qin Zhang ◽  
Minzan Li ◽  
Yongni Shao ◽  
Jianfeng Zhou ◽  
...  
Keyword(s):  
Water Stress ◽  
Image Sensor ◽  
Sensor System
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