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Detection of image stretching
2010
Proceedings of the 7th Symposium on Applied Perception in Graphics and Visualization - APGV '10
Preserved Fulltext
of uniformly stretching the image. ...
We show that even small stretches can be detected in some cases. ...
All of the images used in this paper are reproduced under Creative Commons license http://creativecommons.org/licenses/by-sa/2.0/ or http://creativecommons.org/licenses/by/2.0/. ...
doi:10.1145/1836248.1836266
dblp:conf/apgv/NiuLLBG10
fatcat:6gybvvyjtjdzrgvowmbuqlodla
Edge Detection in Digital Images Using Dispersive Phase Stretch Transform
2015
International Journal of Biomedical Imaging
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We show that the output phase of the transform reveals transitions in image intensity and can be used for edge detection. ...
We describe a new computational approach to edge detection and its application to biomedical images. ...
Conflict of Interests The authors declare that there is no conflict of interests regarding the publication of this paper. ...
doi:10.1155/2015/687819
pmid:25878656
pmcid:PMC4386678
fatcat:bozfqx2qhneu7llfnpnw4fff7y
Power efficiency of time-stretch imaging system by using parallel interleaving detection
2016
Chinese Optics Letters (COL)
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A 38.88 MHz time-stretch line-scan imaging system with parallel interleaving detection is experimentally demonstrated. ...
Thanks to the improvement of the power efficiency by using parallel interleaving detection, the signal quality is enhanced. ...
Figure 1 shows the time-stretch imaging system with the proposed parallel interleaving detection. A broadband laser source is used to generate a sequence of short pulses. ...
doi:10.3788/col201614.101103
fatcat:ddhn43xqireifnmwj4rjvk7qfy
Crack Detection of Medical Bone Image Using Contrast Stretching Algorithm with the Help of Edge Detection
english
2015
International Journal of Scientific Engineering and Technology
english
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The purpose of this project is to find out the accuracy of an X-Ray Detection of crack Bone using Canny Edge Detection Method. ...
Crack in the Bone only happen when the bones took a force beyond their elasticity or strength .Canny Edge Detection method is an optimal edge detection algorithm on determining the end of a line with changeable ...
Automatic Crack Detection of Bone We are using Contrast Stretching algorithm for detecting the crack on the bone Contrast stretching is a simple image enhancement technique that attempts to improve the ...
doi:10.17950/ijset/v4s3/306
fatcat:2kdk235pafcmfea7fvtramyfna
Asymmetric-detection time-stretch optical microscopy (ATOM) for ultrafast high-contrast cellular imaging in flow
[article]
2013
arXiv
pre-print
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We here demonstrate a new imaging approach, called asymmetric-detection time-stretch optical microscopy (ATOM), which can deliver ultrafast label-free high-contrast flow imaging with well delineated cellular ...
Accelerating imaging speed in optical microscopy is often realized at the expense of image contrast, image resolution, and detection sensitivity- a common predicament for advancing high-speed and high-throughput ...
With the aim of enlarging the scope of time-stretch imaging applications, we here introduce a new imaging approach called asymmetric-detection time-stretch optical microscopy (ATOM), for obtaining label-free ...
arXiv:1309.5579v1
fatcat:plwhhgjhmfdg5iczo3p2e33d44
Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy (ATOM)
2017
Journal of Visualized Experiments
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Chung Department of Electrical and Electronic Engineering, The University of Hong Kong Department of Mechanical Engineering, The University of Hong Kong Correspondence to: Kevin K. ...
into electrical
signal
Infiniium High-Performance
Oscilloscope
Agilent
DSOX91604A
To save the light-converted
electrical signals
HI1060 optical fiber
Corning
HI1060
Optical fiber for time-stretch ...
doi:10.3791/55840
pmid:28715367
pmcid:PMC5608519
fatcat:tyr65o7dpzafxihcbuuftsalfi
Asymmetric-detection time-stretch optical microscopy (ATOM) for high-contrast and high-speed microfluidic cellular imaging
2014
Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XII
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We have demonstrated a new imaging modality, asymmetric-detection time-stretch optical microscopy (ATOM), by incorporating a simple detection scheme which is a further advancement in time-stretch microscopya ...
Through the asymmetric-detection scheme in ATOM, the time-stretch image contrast is enhanced through accessing to the phase-gradient information. ...
HKU 7172/12E, HKU 717510E, HKU 717911E, HKU 720112E) and University Development Fund of HKU. ...
doi:10.1117/12.2038952
fatcat:5u44gwubojd5dkpojxgzjyluni
Response of Rigor Cross-bridges to Stretch Detected by Fluorescence Lifetime Imaging Microscopy of Myosin Essential Light Chain in Skeletal Muscle Fibers
2010
Journal of Biological Chemistry
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We applied fluorescence lifetime imaging microscopy to map the microenvironment of the myosin essential light chain (ELC) in permeabilized skeletal muscle fibers. ...
However, when 1% stretch was applied to the rigor fibers, the lifetime decreased for ELC-127 and ELC-180 but did not change for ELC-142 and ELC-160. ...
Fluorescence lifetime images were acquired after each step in each of the two states, stretched, and released. ...
doi:10.1074/jbc.m110.149526
pmid:21056977
pmcid:PMC3013043
fatcat:uham6q6uxrde3mmfj66qfm2roa
Automatic cell detection and segmentation from H and E stained pathology slides using colorspace decorrelation stretching
2016
Medical Imaging 2016: Digital Pathology
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This altered RGB image is then used to segment cells. ...
Most of the state-of-the-art cell detection and segmentation techniques focus on complicated methods to subtract foreground cells from the background. ...
set+ # of detected cells) F1-score = 2× Precision×Recall/(Precision+Recall)
Figure 2 . 2 Effect of decorrelation stretching as a preprocessing stage on detecting cells from a pathology image patch. ...
doi:10.1117/12.2216507
dblp:conf/midp/PeikariM16
fatcat:j4prlalm35hxlcfc7uplv6zzte
Analysis of Edge Detection Technique by Varying Image Contrast
2014
IOSR Journal of Electrical and Electronics Engineering
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Edge detection technique is a vital part of image processing that can be applied to different types of images including medical images. ...
Results are analyzed corresponding to images of different contrast which can be achieved by histogram stretching. ...
In this paper, edge detection method is applied on images of different contrast. An effective technique called histogram stretching is used here for adjusting the contrast of images. ...
doi:10.9790/1676-09522127
fatcat:4uzgx3ojtbeerfnjvj2ouqgtpm
High-throughput Biological Cell Classification Featuring Real-time Optical Data Compression
[article]
2015
arXiv
pre-print
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Enabled by the photonic time stretch digitizer, a new class of instruments with record throughputs have led to the discovery of optical rogue waves [1], detection of rare cancer cells [2], and the highest ...
It has enabled detection of breast cancer cells in blood with record, one-in-a-million, sensitivity [2]. ...
TIME STRETCH IMAGING The basic principle of time stretch imaging (STEAM) involves two steps both performed optically. ...
arXiv:1503.05834v1
fatcat:ivuaqz2yvbemjfcpntrxffpzxq
ハイスループット・イメージ・サイトメトリーを用いたがん検出
Cancer Detection with High-throughput Image Cytometry
2016
Medical Imaging Technology
Cancer Detection with High-throughput Image Cytometry
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In this review article, we discuss the principles of optical time-stretch imaging and its application to cancer detection. ...
This technological problem can be solved by high-throughput image cytometrya technique that integrates microfluidics and optical time-stretch imaging. ...
Acknowledgements This work was supported by ImPACT Program of the Council for Science, Technology and Innovation (Cabinet Office, Government of Japan), JSPS KAKENHI (grant numbers 25702024 and 25560190 ...
doi:10.11409/mit.34.68
fatcat:pjxu6dyldvclbbgiv2jv6o6h4e
Interactive Hand Pose Estimation: Boosting accuracy in localizing extended finger joints
2018
IS&T International Symposium on Electronic Imaging Science and Technology
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Note that this fulltext copy is not of the "primary" version of this work. The version it corresponds to is:
2018 pre-print arXiv:1804.00651v1 fatcat:3jedcxxvonhkxjehgxmfxrg3faOther Versions
It first detects which fingers are stretching out, then neighbor pixels of certain joint vote for its new location based on random forests. ...
After the refinement stage of stretching-out fingers, errors of predicted HMI finger joint locations are significantly reduced. ...
Stretching-out fingers detection We detect stretching-out fingers based on hand mask images ( Fig.1(a) ), using the method proposed in our previous work [18] . ...
doi:10.2352/issn.2470-1173.2018.2.vipc-251
fatcat:fgavbuyweffxhjebmalteupb7q
Phase-Stretch Adaptive Gradient-Field Extractor (PAGE)
[chapter]
2020
Coding Theory [Working Title]
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We demonstrate applications of this algorithm in edge detection and extraction of semantic information from medical images, electron microscopy images of semiconductor circuits, optical characters and ...
(phase) detection. ...
This work was partially supported by the National Institutes of Health (NIH) Grant No. 5R21 GM107924-03 and the Office of Naval Research (ONR) Multi-disciplinary University Research Initiatives (MURI) ...
doi:10.5772/intechopen.90361
fatcat:qatzel3wzvctrpplvicbhmlfqy
Automatic segmentation of wrist bone fracture area by K-means pixel clustering from X-ray image
2019
International Journal of Electrical and Computer Engineering (IJECE)
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This method can recover previously detected patterned false cases with edge detection method after fuzzy stretching. The proposed method is successful in 16 out of 20 tested cases in experiment. ...
Early detection of subtle fracture is important particularly for the senior citizens' quality of life. ...
The sources of difficulty in visual detection by radiologists might be the overlapping of several anatomical structures on an X-ray image or the inconsistency of image quality across exams. ...
doi:10.11591/ijece.v9i6.pp5205-5210
fatcat:qluxob3gg5e5dduhkoszheeijq
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