scholarly journals IMAGE PRE-PROCESSING STRATEGIES FOR ENHANCING PHOTOGRAMMETRIC 3D RECONSTRUCTION OF UNDERWATER SHIPWRECK DATASETS

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 941-948
Author(s):  
A. Calantropio ◽  
F. Chiabrando ◽  
B. Seymour ◽  
E. Kovacs ◽  
E. Lo ◽  
...  
Keyword(s):  
Image Enhancement ◽  
National Park ◽  
Processing Strategies ◽  
The Us ◽  
Park Service ◽  
Enhancement Method ◽  
Experimental Image ◽  
Definition Of

Abstract. Although underwater photogrammetry has become widely adopted, there are still significant unresolved issues that are worthy of attention. This article focuses on the 3D model generation of underwater shipwrecks and intends explicitly to address the problem of dealing with sub-optimal datasets. Even if the definition of best practices and standards to be adopted during the acquisition phase appears to be crucial, there is a massive amount of data gathered so far by professionals and the scientific community all over the world that cannot be ignored. The compelling idea is to attempt to achieve the best reconstruction results possible, even from sub-optimal or less-than-ideal image datasets. This work focuses on the investigation of different strategies and approaches for balancing the quality of the photogrammetric products, without neglecting their reliability concerning the surveyed object. The case study of this research is the Mandalay MHT, a 34 m long steel-hulled auxiliary schooner that sank in 1966 and now lies in the Biscayne National Park (Florida - USA). The dataset has been provided by the Submerged Resources Center (SRC) of the US National Park Service, in order to develop an experimental image enhancement method functional to the virtualization and visualization of the generated products, as a part of a sustainable, affordable, and reliable method of studying submerged artefacts and sites. The original images have been processed using different image enhancement approaches, and the outputs have been compared and analysed.

scholarly journals THE LINK BETWEEN INTERPERSONAL VIOLENCE AND ANIMAL ABUSE

2020 ◽  
Vol 3 (3) ◽  
pp. 83-101 ◽  
Author(s):  
AVIVA VINCENT ◽  
SHELBY MCDONALD ◽  
BETHANIE POE ◽  
VICKI DEISNER
Keyword(s):  
Interpersonal Violence ◽  
Elder Abuse ◽  
Animal Abuse ◽  
The Family ◽  
The Us ◽  
Welfare Systems ◽  
Definition Of ◽  
Forms Of Violence

In 2018, more homes in the US have pets than those that have children. Though pets are regarded as property by US law, a majority of people identify pets as part of the family unit. Animal abuse and cruelty have been identified as a potential indicator and precursor to interpersonal violence (IPV). Moreover, child maltreatment, domestic violence, elder abuse, and animal abuse co-occur in households and communities link together to indicate the nexus of these heinous crimes; these co-occurring forms of violence have been increasingly referred to as The Link, to indicate the linked violence. However, there is an incongruence in the definition of animal abuse and cruelty; thus, documenting cases, bringing charges, and achieving a conviction is difficult. Furthermore, the initial education to learn of these topics in human service professions, such as social work, remains absent from many curricula. In practice, cross-reporting of suspected abuse or neglect is a vital mechanism for connecting human and animal professionals to address the issues between human and animal welfare systems. This sharing of information can increase the likelihood that clients experiencing IPV will receive comprehensive services that can improve their level of safety and quality of life. By providing professionals with education for indicators of abuse, and strategies for how to make a report, communities can build stronger support networks for those in need. Herein, Ohio legislation and current community efforts serve as a case study to define animal abuse, delineate transdisciplinary factors for relevance, and make recommendations for addressing this vital social welfare need. The strategies within this case-study are encouraged to be adapted and applied nationally and internationally.

The Complementary Effect of National Park Fee Increases on Visitor Spending in Gateway Communities

2018 ◽  
Vol 22 (3) ◽  
pp. 187-198 ◽  
Author(s):  
Jeremy Sage ◽  
Norma Nickerson ◽  
Zachary D. Miller ◽  
Alex Ocanas ◽  
Jennifer Thomsen
Keyword(s):  
National Park ◽  
Price Change ◽  
Travel Costs ◽  
Complementary Effect ◽  
Gateway Communities ◽  
Park Visitation ◽  
The Us ◽  
Park Service ◽  
Alternative Means

In 2017, the US National Park Service faced a nearly $12 billion maintenance backlog. To address this backlog, they announced plans to increase entrance fees in 17 of the most visited parks. As fees are a component of the travel cost, we consider price change effects on demand for park entry. Demand for the 17 parks is shown to be inelastic. Recognizing that spending in gateway communities is complementary to national park visitation, we use Yellowstone National Park as a case study on entrance fee increase effects on gateway communities. We estimate a $3.4 million annual loss in gateway community spending by visitors as a result of reduced visitation by those visitors who choose not to purchase a 7-day pass. Acknowledging the diminishing effect of the fee increase on travel costs, we further explore alternative means of structuring fees based on examples of other countries.

Analysis of color Image Enhancement Using DWT, Wavelet Shrinkageand FHE Methods

2017 ◽  
Vol 7 (8) ◽  
pp. 56
Author(s):  
Ashish Dwivedi ◽  
Nirupma Tiwari
Keyword(s):  
Image Enhancement ◽  
Color Image ◽  
Human Perception ◽  
Histogram Equalization ◽  
Wavelet Shrinkage ◽  
Visual Appearance ◽  
Enhancement Method ◽  
Fuzzy Histogram ◽  
Rgb Image

Image enhancement (IE) is very important in the field where visual appearance of an image is the main. Image enhancement is the process of improving the image in such a way that the resulting or output image is more suitable than the original image for specific task. With the help of image enhancement process the quality of image can be improved to get good quality images so that they can be clear for human perception or for the further analysis done by machines.Image enhancement method enhances the quality, visual appearance, improves clarity of images, removes blurring and noise, increases contrast and reveals details. The aim of this paper is to study and determine limitations of the existing IE techniques. This paper will provide an overview of different IE techniques commonly used. We Applied DWT on original RGB image then we applied FHE (Fuzzy Histogram Equalization) after DWT we have done the wavelet shrinkage on Three bands (LH, HL, HH). After that we fuse the shrinkage image and FHE image together and we get the enhance image.

From Competition to Cooperation: A History of Canada–US National Park Relations

2019 ◽  
Author(s):  
Terence Young ◽  
Alan MacEachern ◽  
Lary Dilsaver
Keyword(s):  
National Parks ◽  
National Park ◽  
The United States ◽  
The Us ◽  
Park Service ◽  
Settler Societies ◽  
History Of ◽  
Relationship Of ◽  
Flow Of Information ◽  
The Relationship

This essay explores the evolving international relationship of the two national park agencies that in 1968 began to offer joint training classes for protected-area managers from around the world. Within the British settler societies that dominated nineteenth century park-making, the United States’ National Park Service (NPS) and Canada’s National Parks Branch were the most closely linked and most frequently cooperative. Contrary to campfire myths and nationalist narratives, however, the relationship was not a one-way flow of information and motivation from the US to Canada. Indeed, the latter boasted a park bureaucracy before the NPS was established. The relationship of the two nations’ park leaders in the half century leading up to 1968 demonstrates the complexity of defining the influences on park management and its diffusion from one country to another.

scholarly journals Impact of Social Responsibility on the Quality of Company Governance

2019 ◽  
Vol 65 (2) ◽  
pp. 21-29
Author(s):  
Ana Jurić ◽  
Aleksandra Zupanc ◽  
Tjaša Štrukelj
Keyword(s):  
Social Responsibility ◽  
Limited Liability ◽  
Added Value ◽  
Socially Responsible ◽  
Company Governance ◽  
Research Findings ◽  
Definition Of ◽  
A Company

AbstractThe central aim of the article is company governance, i.e., researching governance of a company that does not want to be only financially successful but also direct its governance toward socially responsible governance. The article begins with the definition of “theoretical backgrounds,” in which social responsibility in regard to company governance improvement in quality is explained. The article then focuses on the measurement of the quality of company governance; in the research, the selected tool chosen to evaluate the governance of the chosen company regarding social responsibility, i.e., SEECGAN index, is used. Further, the case study of a Slovenian public limited liability company is used. One of the important research findings is the recognition that the addressed part of the SEECGAN index needs to be innovated and further developed. Additional questions for the completion of the index used presents the added value of the article. This article has two limitations: 1) it focuses only on the tool chosen to evaluate the governance of the chosen company regarding social responsibility; 2) the case study is based on publicly accessible data.

scholarly journals The Deep Freeze Redux: Cold Storage Packaging of Ektachrome Color Film

2018 ◽  
Vol 2 ◽  
pp. e25640
Author(s):  
Lisa Palmer
Keyword(s):  
Cold Storage ◽  
National Park ◽  
First Generation ◽  
Marine Fishes ◽  
Color Film ◽  
Acclimation Period ◽  
The Us ◽  
Park Service ◽  
Materials Used ◽  
National Gallery Of Art

At the 2017 SPNHC meetings in Denver, a five-minute Storage Techniques for Art, Science and History (STASH) talk was presented on the cold storage of film-based media. Herein, a more in-depth presentation of the Smithsonian's archival project with a status update is provided. In February 2016 world-renowned ichthyologist John E. Randall (Jack) donated his 10,559 film-based slide collection of fishes to the Smithsonian Institution National Museum of Natural History (NMNH). Beginning in the 1970’s, Jack used predominately 120mm Ektachrome film to photograph marine fishes. The first-generation slides were stored in cool storage, approximately 40F/4.5C, for much of their lives, thus preserving film color quite well as well as extending the life expectancy of film. Although digital surrogates of the slides have been created, the Division of Fishes intends to ensure the stabilization of the original color film by placing the slides in cold (-4F/-20C) storage. Color dyes used in Ektachrome slide film are fairly fugitive, and a known strategy to slow the rate of fading is to store slides in the coldest storage possible. NMNH Division of Fishes rehoused slides based on methods developed by the US National Park Service and the US National Gallery of Art. Prior to placing into cold storage, the slides were rehoused using archival supplies. The packaging methods we used are to prevent or reduce inherent deterioration as well as to help prevent any condensation buildup during the acclimation period that can occur when moving between quite differing temperature environments. In this discussion, I will evaluate the processes and materials used as well as to reflect on post-mortem takeaways.

Whose News Can You Trust?

2014 ◽  
pp. 324-352
Author(s):  
Rick Malleus
Keyword(s):  
Peer Review ◽  
Theoretical Framework ◽  
Online News ◽  
News Sources ◽  
Definition Of ◽  
Online News Sites

This chapter proposes a framework for analyzing the credibility of online news sites, allowing diaspora populations to evaluate the credibility of online news about their home countries. A definition of credibility is established as a theoretical framework for analysis, and a framework of seven elements is developed based on the following elements: accuracy, authority, believability, quality of message construction, peer review, comparison, and corroboration. Later, those elements are applied to a variety of online news sources available to the Zimbabwean diaspora that serves as a case study for explaining the framework. The chapter concludes with a discussion of the framework in relation to some contextual circumstances of diaspora populations and presents some limitations of the framework as diaspora populations might actually apply the different elements.

Medical Image Enhancement Using Edge Information-Based Methods

2017 ◽  
pp. 123-148
Author(s):  
S. Anand
Keyword(s):  
Image Enhancement ◽  
Medical Image ◽  
Hyperbolic Function ◽  
Edge Information ◽  
X Ray ◽  
Enhancement Method ◽  
Chest X Ray ◽  
Medical Image Enhancement

Medical image enhancement improves the quality and facilitates diagnosis. This chapter investigates three methods of medical image enhancement by exploiting useful edge information. Since edges have higher perceptual importance, the edge information based enhancement process is always of interest. But determination of edge information is not an easy job. The edge information is obtained from various approaches such as differential hyperbolic function, Haar filters and morphological functions. The effectively determined edge information is used for enhancement process. The retinal image enhancement method given in this chapter improves the visual quality of the vessels in the optic region. X-ray image enhancement method presented here is to increase the visibility of the bones. These algorithms are used to enhance the computer tomography, chest x-ray, retinal, and mammogram images. These images are obtained from standard datasets and experimented. The performance of these enhancement methods are quantitatively evaluated.

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