Cylindrical Panoramic Image Automatic Mosaic Algorithm Based on Phase Correlation

Xianxiang, 吴宪祥 Wu; Baolong, 郭宝龙 Guo; Juan, 王娟 Wang

doi:10.3788/aos20092907.1824

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It convert two images to frequency domain using FFT, then employ normalized cross-power spectrum to calculate the shifting between two images. Phase correlation depends on little image gray, and it can resist the effect of light change arisen from environment [3]. So it is a good way to use this algorithm to calculate the images collected by CCD.…”

Section: Phase Correlation Algorithm and Corresponding Selecting Imagementioning

confidence: 99%

Measurement of Rotation Angle about Rotating Object Based on Digital Image

Huang

Zhao

et al. 2012

AMM

View full text Add to dashboard Cite

One measurement of rotation angle about rotating object was proposed, it can realize precise and non-contact measurement. This measurement was executed as follow: firstly, select one image that it has abundant information, and the object which need rotation was pasted by this image. Secondly, when this object is begin to rotation, use CCD to collect the external images of the object before and after rotation respectively. Lastly, convert these two collected images from Descartes coordinate to polar coordinate, then calculate these two images in polar coordinate with phase correlation. The rotated angle was found by these steps. The result of this measurement experiment shows that this method can measure the rotated angle correctly. So this measurement method is worth to research and apply according to the theory and the experiment.

show abstract

Section: Phase Correlation Algorithm and Corresponding Selecting Imagementioning

confidence: 99%

Measurement of Rotation Angle about Rotating Object Based on Digital Image

Huang

Zhao

et al. 2012

AMM

View full text Add to dashboard Cite

show abstract

Research on Cylinder Data Matrix Barcode Recognition

Lin

Wang

et al. 2012

AASRI Procedia

View full text Add to dashboard Cite

Visual Indexing of Large Scale Train-Borne Video for Rail Condition Perceiving

Dai

Wang

Huang

et al. 2017

IEICE Trans. Inf. & Syst.

View full text Add to dashboard Cite

SUMMARYTrain-borne video captured from the camera installed in the front or back of the train has been used for railway environment surveillance, including missing communication units and bolts on the track, broken fences, unpredictable objects falling into the rail area or hanging on wires on the top of rails. Moreover, the track condition can be perceived visually from the video by observing and analyzing the train-swaying arising from the track irregularity. However, it's a time-consuming and laborintensive work to examine the whole large scale video up to dozens of hours frequently. In this paper, we propose a simple and effective method to detect the train-swaying quickly and automatically. We first generate the long rail track panorama (RTP) by stitching the stripes cut from the video frames, and then extract track profile to perform the unevenness detection algorithm on the RTP. The experimental results show that RTP, the compact video representation, can fast examine the visual train-swaying information for track condition perceiving, on which we detect the irregular spots with 92.86% recall and 82.98% precision in only 2 minutes computation from the video close to 1 hour. key words : route panorama, video indexing, train-borne video, trainswaying, track irregularity

show abstract

Cylindrical Panoramic Image Automatic Mosaic Algorithm Based on Phase Correlation

Cited by 4 publications

References 0 publications

Measurement of Rotation Angle about Rotating Object Based on Digital Image

Measurement of Rotation Angle about Rotating Object Based on Digital Image

Research on Cylinder Data Matrix Barcode Recognition

Visual Indexing of Large Scale Train-Borne Video for Rail Condition Perceiving

Contact Info

Product

Resources

About