Measuring the in situ tilt orientation of fish and zooplankton using stereo photogrammetric methods

Levine, Mike; Williams, Kresimir; Ressler, Patrick H.

doi:10.1002/lom3.10254

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Measuring the in situ tilt orientation of fish and zooplankton using stereo photogrammetric methods

2018
By Levine, Mike ; Williams, Kresimir ; Ressler, Patrick H.
Source: Limnology and Oceanography: Methods, 16(6), 390-399

[PDF-650.50 KB]

Details Supporting Files You May Also Like

Details:

Journal Title:

Limnology and Oceanography: Methods
Personal Author:

Levine, Mike ; Williams, Kresimir ; Ressler, Patrick H.

Levine, Mike ; Williams, Kresimir ; Ressler, Patrick H. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) Less -
Description:

Acoustic-derived estimates of ﬁsh and zooplankton numerical and biomass density rely on knowledge of the sound scattered by an individual, known as target strength (TS). An important, but difﬁcult to measure, factor in determining TS is the tilt orientation of animals in relation to the insonifying acoustic wave. Under- water stereo-camera systems can provide in situ tilt measurements for ﬁsh and zooplankton. We describe aprotocol to remove the effects of camera pitch and roll from tilt measurements using a low-cost orientation sensor and a mathematical correction. A tank experiment indicated that tilt estimates made with corrected pitch and roll position data improved measurement accuracy as compared to those made with uncorrectedposition data. This experiment also provided empirical limits on the range of yaw values that allowed for
Keywords:

[+]

Ocean Engineering
Source:

Limnology and Oceanography: Methods, 16(6), 390-399
DOI:

https://doi.org/10.1002/lom3.10254
ISSN:

1541-5856
Format:

PDF
Publisher:

Wiley
Document Type:

Journal Article
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Rights Statement:

This article is a U.S. Government work and is in the public domain in the USA
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:7c563f5ed672a62928ca7ac3f8a870087e1ccb95942ab240ec465585092198dd
Download URL:

https://repository.library.noaa.gov/view/noaa/53819/noaa_53819_DS1.pdf
File Type:

Machine readable version (XML)

xml

More +