Glossary entry

Spanish term or phrase:

(valle entre la) moda blanca y oscura

English translation:

valley between the white and black/dark areas/regions

Added to glossary by liz askew
Oct 27, 2009 08:26
14 yrs ago
Spanish term

(valle entre la) moda blanca y oscura

Spanish to English Medical Medical: Instruments CT scanning
A paper on the use of a new algorithm for pulmonary CT scanning

En la segunda fase del algoritmo se calcula el histograma de la zona resultante, utilizándose el valor definido en el valle entre la moda blanca y oscura como el umbral para la delimitación inicial de los lóbulos pulmonares

"White and dark mode" isnt used, checking "White & Black" (and obviously Black and White) tends to come up with the idea of "Not colour". Oh, and I'm assuming valley would be correct here

Thanks in advance
Change log

Oct 28, 2009 18:34: liz askew changed "Edited KOG entry" from "<a href="/profile/66738">William Pairman's</a> old entry - "(valle entre la) moda blanca y oscura"" to ""valley between the white and black/dark areas/regions""

Proposed translations

+1
2 hrs
Selected

valley between the white and black/dark areas/regions

Segmentation of lung lobes in clinical CT images
white areas are the lung boundaries, bronchial and vascular trees. The black regions within ..... 10d–f shows the corresponding local minimum or valley .... radiologist [represented by black arrows and a white circle in. (d) and (h)]. ...
www.springerlink.com/index/A8V45P306127W12W.pdf - Similar
by Q Wei - 2008 - Related articles

umbral = threshold

gray level threshold value > valor umbral de nivel de grises
English term or phrase: gray level threshold value. Spanish translation: valor umbral de nivel de grises. Entered by: psicutrinius ...
www.proz.com/..._/2222836-gray_level_threshold_value.html - Cached – Similar


Automatic detection of pulmonary nodules on volumetric computed ...
The development of the computed tomography (CT) technology and .... flat and low valley between the peaks of the lung parenchyma and the fat. ... 8, the detection of lung nodules using a local density maximum algorithm is illustrated in ...
www.patentstorm.us/patents/6728334/description.html – Similar


http://209.85.229.132/search?q=cache:6XfFsumOcWsJ:www.wipo.i...


For example, there may be multiple structures that have different intensity characteristics, like in the central area of the lungs where various anatomical structures exist. Even when only one anatomical structure is present, its intensity may vary due to the partial volume effect. This occurs frequently with small vessels. In either case, there will be no distinct valley in the histogram. Instead, we adaptively set the threshold for target structure segmentation by finding the curvature extrema of the local histogram (in step 316c). Noticing that peaks in the curvature plot correspond to sharp drops in the histogram, and reflect abrupt changes in intensity distribution, the threshold can be set as the intensity value where the sharpest change occurs.


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Note added at 2 hrs (2009-10-27 10:28:57 GMT)
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"valley" IS used on sites re CT scans of the lungs, from my findings:)

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Note added at 2 hrs (2009-10-27 10:31:21 GMT)
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#
Subtraction technique for computerized detection of small lung ...
Note that a small nodule was enhanced as a dark shadow on both subtraction images. .... Therefore, we determined a threshold level at a valley of the histogram. ... of the blurred target CT image was performed for extraction of lung regions. ... section image, where white lines indicate the border of the lungs. ...
www.patentstorm.us/patents/6678399/description.html - Similar
# [PDF]
INFORMATION TO USERS
File Format: PDF/Adobe Acrobat - View as HTML
bright region to a dark region near the left of the line would mark the beginning .... in the "valley" defined between [pl\, pll] in the left lung and [prl, ...
www-ee.uta.edu/eeweb/IP/papers/natarajan.pdf - Similar
#
Pulmonary Nodule Detection using Chest Ct Images
Material and Methods: Gray-level threshold methods were used to segment the ... level histogram of Fig.2b. The region can be sep- ... gray-level thresholding (6, 13, 15), where the ''valley'' ... nodule within a lung region has high gray value in ... new area marked with white. Extended lung seg- ...
doi.wiley.com/10.1034/j.1600-0455.2003.00061.x - Similar
by DY Kim - 2003 - Cited by 23 - Related articles
Peer comment(s):

agree Eileen Banks : Very good references :)
1 hr
Thank you for appreciating the research! Saludos!
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4 KudoZ points awarded for this answer. Comment: "Many thanks Liz, very helpful refs, many thanks too to Muriel and Cesar"
20 mins

valley between the white and dark mode

clips.3 A Yasargil (Aesculap, Center Valley, Pa) 7-mm curved blade ... the artifact arising from the clip between the axial and helical acquisitions. The helical examination had ... an axial or helical mode. One specific artifact associated with ... the lines of alternating *white and dark* arising from the clip. ...
www.ajnr.org/cgi/reprint/29/4/660.pdf

A mis-adjusted range can also cause clipping at both the light and dark .... the lane separation is bad (no proper valley between the lanes) and ... Any parts of the image that is either white or black in false colour mode, isclipped. ...
cic.btk.fi/index.php?id=1565
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29 mins

(boundary between the) white and dark structures/areas

I couldn't find any example of "valley". That's really a separate question. I can't visualize how it would appear. It's the point at which one stops and the other begins, so it's more like a boundary; even if it's fuzzy, it would contain properties of both.

"White and dark structures' is pretty common: the former is hyperechoic and the latter is hypoechoic.

Hypoechoic: dark structures/areas on the screen, e.g. vessels, cysts... Ultrasound waves are attenuated. • Hyperechoic: white (echogenic structures), ...
www.hssanes.org/pdf/2009_ultrasound_1.pdf
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