Measurement accuracy of noncontact video inspection systems

Ricklefs, Ubbo

doi:10.1117/12.20244

Search citation statements

Order By: Relevance

Paper Sections

Select...

Image Digitization1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1997

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An experiment was conducted to assess the effect of the image digitization process on accuracy. 19,20 The target was positioned at 600 mm and 10 images were recorded in succession, and their positions determined. This was repeated for a target distance of 700 mm.…”

Section: Image Digitizationmentioning

confidence: 99%

Accuracy of three-dimensional measurement using a single image

Iovenitti

1997

Opt. Eng

View full text Add to dashboard Cite

The accuracy of 3-D measurement using a single image of a four-point coplanar target of known size is studied. The factors that influence accuracy are analyzed and experimental techniques are used to establish their individual effect on accuracy. Experiments show that the four-point coplanar target has two solutions for real images and that mixing these causes large errors. It is concluded that when the target is approximately parallel to the image plane, the accuracy is significantly better compared to other target orientations, and that image distance is a critical factor affecting accuracy in the depth, while the effect of the other factors on accuracy is relatively insignificant. A new calibration technique is introduced that determines an average image distance over the image plane within the depth of focus and improves accuracy at close range. © 1997 Society of Photo-Optical Instrumentation Engineers.Subject terms: three-dimensional measurement; image analysis; perspective four-point problem.

show abstract

Section: Image Digitizationmentioning

confidence: 99%

Accuracy of three-dimensional measurement using a single image

Iovenitti

1997

Opt. Eng

View full text Add to dashboard Cite

show abstract

Measurement accuracy of noncontact video inspection systems

Cited by 1 publication

References 0 publications

Accuracy of three-dimensional measurement using a single image

Accuracy of three-dimensional measurement using a single image

Contact Info

Product

Resources

About