Automatic correction of barrel distorted images using a cascaded evolutionary estimator

Moravec, Jaroslav; Hub, Miloslav

doi:10.1016/j.ins.2016.03.055

Cited by 5 publications

(2 citation statements)

References 108 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Emergence of distortion in images (optical or perspective) and how it a ects calibration may be a subject of study in the future and, if necessary, some known methods of image corrections (e.g. [25]) can be utilized. It is also possible to establish a relation between the real dimensions and the dimensions observed in video recordings.…”

Section: Resultsmentioning

confidence: 99%

Hot-film/hot-wire anemometer calibration for low velocities using image processing

2019

View full text Add to dashboard Cite

Calibration of hot-wire and hot-lm probes at low velocities is a di cult task because the dynamic pressure at these velocities is quite low and may not be easily measured. To solve this problem, substituent techniques have been presented in the literature that rely on other phenomena and utilize di erent hardware. This study described a simple and low-cost method which proposes moving the anemometer probe in the quiescent air (here by means of a swinging arm) and tracked this motion with a camera. After processing the images, the time history of the probe velocity was measured by numerical calculations. Calibration curve was, then, obtained without any predetermined relationship. Using a medium-speed video camera, which is often found in laboratories, would obviate the need for a position sensor and a complicated arm on which this sensor is mounted. This technique can be used for not only pendulums but also other means of moving probes in a quiescent medium.

show abstract

Section: Resultsmentioning

confidence: 99%

Hot-film/hot-wire anemometer calibration for low velocities using image processing

2019

View full text Add to dashboard Cite

show abstract

“…Various techniques for distortion correction were described in Ref. [9,10,13]. The X-ray imagery is obtained using specialized clinical equipment, such as an operating-room Xray unit C-ARM.…”

Section: Introductionmentioning

confidence: 99%

An algorithm for correcting X-ray image distortions caused by central projection

Ustinov¹,

Ilyasova²,

Демин³

2017

Collection of Selected Papers of the III International Conference on Information Technology and Nanotechnology

View full text Add to dashboard Cite

We propose an algorithm for correcting X-ray image distortions caused by central projection. Relationships between coordinates of X-ray image points obtained using parallel and central projection are derived. We describe two correction techniques using which the original image can be made similar to the one based on parallel projection. In this way, the three-dimensional heart vessel model can be essentially simplified and diagnostic parameters can be assessed with higher accuracy, resulting in a more accurate early disease diagnosis.

show abstract

A Hand Contour Classification Using Ensemble of Natural Features: A Large Comparative Study

Moravec

2020

Advances in Intelligent Systems and Computing

View full text Add to dashboard Cite

Automatic correction of barrel distorted images using a cascaded evolutionary estimator

Cited by 5 publications

References 108 publications

Hot-film/hot-wire anemometer calibration for low velocities using image processing

Hot-film/hot-wire anemometer calibration for low velocities using image processing

An algorithm for correcting X-ray image distortions caused by central projection

A Hand Contour Classification Using Ensemble of Natural Features: A Large Comparative Study

Contact Info

Product

Resources

About