Accurate roughness measurements by dynamic calibration, VFM-uncertainty calculations and a special calibration specimen
نویسندگان
چکیده
منابع مشابه
Calibration Techniques for Accurate Measurements by Underwater Camera Systems
Calibration of a camera system is essential to ensure that image measurements result in accurate estimates of locations and dimensions within the object space. In the underwater environment, the calibration must implicitly or explicitly model and compensate for the refractive effects of waterproof housings and the water medium. This paper reviews the different approaches to the calibration of u...
متن کاملAccurate Estimates without Calibration?
Most process models calibrate their internal settings using historical data. Collecting such data collection is an expensive, tedious, and often incomplete process. Hence, we seek an alternative to calibration from historical data. Formally, historical data offers constraints to a set of model options. An alternative methods of generating those constraints is to augment a process model with a s...
متن کاملAccurate antenna reflector loss measurements for radiometer calibration budget
Antenna reflector losses may play an important role in the calibration budget for a microwave radiometer. If the losses are small they are difficult to measure by traditional means. However, they can be assessed directly by radiometric means using the sky brighmess temperature as incident radiation. The paper describes how such measurements are carried out as well as a suitable experimental set...
متن کاملDynamic calibration of pressure sensors - French metrology special feature
Pressure measurement in non-equilibrium conditions is required in many applications. For example, pressure must be monitored in the cylinders of an engine to study combustion phenomena, in an injection moulding press to study a moulding process, in a Pitot tube to determine the speed of an aircraft, or in a catheter to determine blood pressure. In applications like these the pressure quantity i...
متن کاملDepth distortion under calibration uncertainty
There have been relatively little works to shed light on the effects of errors in the intrinsic parameters on motion estimation and scene reconstruction. Given that the estimation of the extrinsic and intrinsic parameters apts to be imprecise, it is important to study the resulting distortion on the recovered structure. By making use of the iso-distortion framework, we explicitly characterize t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2005
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/13/1/054