An Essay Key for the Photo Identification of Farm Crops at Several Intervals During the Growing Season in Northern Illinois. Part 6: The Identification of Farm Crops on Selected Aerial Photographs. Part 7: Conclusions Regarding the Aerial Photo Identification of Farm Crops in Northern Illinois

1954 ◽  
Author(s):  
Clyde F. Kohn
Keyword(s):  
Growing Season ◽  
Aerial Photographs ◽  
Aerial Photo ◽  
Photo Identification ◽  
Several Intervals

scholarly journals IMPROVEMENT OF RAILWAY TOPOGRAPHIC PLANS UPDATING TECHNOLOGIES

Transport ◽  
2006 ◽  
Vol 21 (2) ◽  
pp. 119-122 ◽  
Author(s):  
Jūratė Sužiedelytė-Visockienė
Keyword(s):  
Information Systems ◽  
Data Base ◽  
Aerial Photograph ◽  
Aerial Photographs ◽  
Topographic Map ◽  
Aerial Photo ◽  
Aerial Triangulation ◽  
Photogrammetric Method ◽  
The City

Peculiar technologies on the update of topographic map linear objects to scale 1:500–1:2000 are presented. Due to that resulted peculiarities make aerial photographs, carrying out digital aerial triangulation, renewing the topographical plan. The article deals with the submitted example of the topographic plan exhibiting the renovated railway in the city of Vilnius. The updating has been made on the aerial photograph on 1:4000 scale with the photogrammetric instrument PlaniComp P3. The objects possessing no identification in photogrammetry are measured by means of a geodetic method. The redacting varied objects in a database are drawn with AutoCadsoftware. On the basis of this work it is possible to state that for fast and exact updating of topographic plans a progressive photogrammetric method is recommended. It is advised the edition data base to be made by the same operator who made photogrammetric work. The objects are visible in an aerial photo, but no identifying photogrammetry should be applied locally. Digital, renewed data are necessary for drawing up geo information systems (GIS) of the railway, to be able to make fast decisions of urgent problems.

scholarly journals MULTI-TEMPORAL ANALYSIS OF WWII RECONNAISSANCE PHOTOS

2016 ◽  
Vol XLI-B8 ◽  
pp. 973-978
Author(s):  
P. Meixner ◽  
M. Eckstein
Keyword(s):  
Czech Republic ◽  
Temporal Analysis ◽  
Aerial Photographs ◽  
Adjacent Area ◽  
Unexploded Ordnance ◽  
Aerial Photo ◽  
Multi Temporal ◽  
Occupied Territories ◽  
The Impact ◽  
Open Cast

There are millions of aerial photographs from the period of the Second Wold War available in the Allied archives, obtained by aerial photo reconnaissance, covering most of today’s European countries. They are spanning the time from 1938 until the end of the war and even beyond. Photo reconnaissance provided intelligence information for the Allied headquarters and accompanied the bombing offensive against the German homeland and the occupied territories. <br><br> One of the initial principal targets in Bohemia were the synthetized fuel works STW AG (Sudetenländische Treibstoffwerke AG) in Zaluzi (formerly Maltheuren) near Most (formerly Brück), Czech Republic. The STW AG synthetized fuel plant was not only subject to bombing raids, but a subject to quite intensive photo reconnaissance, too - long before the start of the bombing campaign. With a multi-temporal analysis of the available imagery from international archives we will demonstrate the factory build-up during 1942 and 1943, the effects of the bombing raids in 1944 and the struggle to keep the plant working in the last year of the war. Furthermore we would like to show the impact the bombings have today, in form of potential unexploded ordnance in the adjacent area of the open cast mines.

scholarly journals A note on an automated system for matching the callosity patterns on aerial photographs of southern right whales

2020 ◽  
pp. 291-295
Author(s):  
Lex Hiby ◽  
Phil Lovell
Keyword(s):  
Random Search ◽  
Automated System ◽  
Aerial Photographs ◽  
Test Set ◽  
Photo Identification ◽  
Eubalaena Australis ◽  
Right Whales ◽  
Southern Right Whales ◽  
Similarity Scores

Photographs showing the callosity patterns of southern right whales (Eubalaena australis) are currently compared by eye to identifyindividuals and monitor their occurrence within certain areas. This paper describes software designed to reduce the number of by eyecomparisons required to maintain each of the existing local photo-identification catalogues. The software is used to extract, from eachphotograph, a viewpoint-independent description of the shape and location of each callosity which generates a parallel catalogue of extracts.This is then compared with the description extracted from each new photograph to generate a list of similarity scores and thus highlightlikely matches. The software can also be used to compare the different catalogues of extracts with each other. Using a test set of 67photographs of 23 whales taken from 1974 to 1986, the software reduced the number of by eye comparisons required to identify allindividuals by 93% when compared with a purely random search.

Tree establishment and growth drive treeline advance and change treeline form on Pikes Peak (Colorado) in response to recent anthropogenic warming.

2021 ◽  
Author(s):  
Miroslav Kummel ◽  
Alison McGarigal ◽  
Michelle T Kummel ◽  
Carol Earnest ◽  
Molly Feiden
Keyword(s):  
Tree Growth ◽  
Seedling Recruitment ◽  
Growing Season ◽  
Aerial Photographs ◽  
Tree Establishment ◽  
Treeline Ecotone ◽  
Large Numbers ◽  
Dendrochronological Analysis ◽  
Set Up ◽  
Topographic Barriers

Treeline advance is a well-established response of treeline ecotones to climate change. However, the degree to which tree growth and establishment drives treeline movement is widely debated. We used GIS analysis of aerial photographs and dendrochronological analysis of tree growth and age structure to examine treeline dynamics on Pikes Peak (CO). The rate of treeline advance at the site (1938-2017) was 0.235m/year, and it accelerated through time. Several sites have transformed from abrupt to diffuse topology. Regional temperatures significantly increased after the 1890s, particularly in the last half-century. Tree growth was inhibited by late spring snow in the 1935-1985 window and enhanced by growing season temperature in the 1965-2009 window. Tree establishment above treeline appears to have transformed treeline topology and set up the potential for further treeline advance. We conclude that if current climatic trends and system relationships continue, treeline should continue to advance because (1) there are large numbers of seedlings and saplings above the treeline due to continuous significant seedling recruitment and (2) growth of trees in the treeline ecotone is positively related to growing season temperatures, which are increasing. Other limits to the system, such as drought or topographic barriers, may arise in the future.

scholarly journals MULTI-TEMPORAL ANALYSIS OF WWII RECONNAISSANCE PHOTOS

2016 ◽  
Vol XLI-B8 ◽  
pp. 973-978 ◽  
Author(s):  
P. Meixner ◽  
M. Eckstein
Keyword(s):  
Czech Republic ◽  
Temporal Analysis ◽  
Aerial Photographs ◽  
Adjacent Area ◽  
Unexploded Ordnance ◽  
Aerial Photo ◽  
Multi Temporal ◽  
Occupied Territories ◽  
The Impact ◽  
Open Cast

There are millions of aerial photographs from the period of the Second Wold War available in the Allied archives, obtained by aerial photo reconnaissance, covering most of today’s European countries. They are spanning the time from 1938 until the end of the war and even beyond. Photo reconnaissance provided intelligence information for the Allied headquarters and accompanied the bombing offensive against the German homeland and the occupied territories. &lt;br&gt;&lt;br&gt; One of the initial principal targets in Bohemia were the synthetized fuel works STW AG (Sudetenländische Treibstoffwerke AG) in Zaluzi (formerly Maltheuren) near Most (formerly Brück), Czech Republic. The STW AG synthetized fuel plant was not only subject to bombing raids, but a subject to quite intensive photo reconnaissance, too - long before the start of the bombing campaign. With a multi-temporal analysis of the available imagery from international archives we will demonstrate the factory build-up during 1942 and 1943, the effects of the bombing raids in 1944 and the struggle to keep the plant working in the last year of the war. Furthermore we would like to show the impact the bombings have today, in form of potential unexploded ordnance in the adjacent area of the open cast mines.

scholarly journals МЕТОД ОПРЕДЕЛЕНИЯ СИЛЬНО ИНФОРМАТИВНЫХ СЕГМЕНТОВ АЭРОФОТОСНИМКА

2018 ◽  
pp. 15-22
Author(s):  
Андрей Александрович Красноруцкий ◽  
Сергей Сергеевич Шульгин ◽  
Анна Владимировна Хаханова ◽  
Дмитрий Владимирович Баранник
Keyword(s):  
Aerial Photograph ◽  
Video Stream ◽  
Aerial Photographs ◽  
Aerial Photo ◽  
Maximum Information ◽  
Simultaneous Reduction ◽  
Syntactic Description ◽  
Service Data ◽  
Information Objects

A variant of solving the problem of reducing the informative intensity of the video stream coming from the aircraft without loss of its efficiency and reliability is discussed. The analysis of aerial photographs, which constitute informative redundancy and subsequently complicate the process of its interpretation is made. The implementation of decryption coding technology for aerial photography is disclosed. A model for the classification of informative segments of an aerial photograph is considered. The direction of reducing the information redundancy of aerial photographs with preservation of key information to its interpretation is proposed. The substantiation of a method of exact allocation of highly informative segments from the whole aerial photograph, which carry the maximum information objects in the interests of interpretation is given. A technological concept of an effective syntactic description of the elements of sufficiently informative segments of an aerial photo is taken into account, which takes into account the characteristics of the transformant components of the discrete cosine transform. Moreover, such a concept is aimed at maximum preservation of key information to decipher the whole aerial photo. A method is constructed for accurately isolating highly informative segments from the entire aerial photograph, which carry the maximum information objects in the interest of deciphering. This will allow to allocate and completely transfer not distorted key information to the deciphering of the whole aerial photo. That, in turn, will shorten the time and increase the probability of correct interpretation. A promising technological concept of an effective syntactic description of the elements of sufficiently informative segments of an aerial photograph that takes into account the characteristics of the DCT transformant components. The scheme for evaluating the significance of transformants of an aerial photograph informative segments is considered. It is substantiated that the proposed version will provide simultaneous reduction of the information necessary for presentation of service data and will create prerequisites for effective reduction of informative intensity of the whole segment of the aerial reconnaissance

Use of forest maps versus field surveys to measure summer habitat selection and sexual segregation in northern white-tailed deer

2002 ◽  
Vol 80 (4) ◽  
pp. 717-726 ◽  
Author(s):  
Louis Lesage ◽  
Michel Crête ◽  
Jean Huot ◽  
Jean-Pierre Ouellet
Keyword(s):  
Habitat Preferences ◽  
Growing Season ◽  
Sexual Segregation ◽  
The Other ◽  
Balsam Fir ◽  
Aerial Photographs ◽  
Low Density ◽  
Field Surveys ◽  
Forest Maps ◽  
Two Populations

We used data derived from forest maps and ground surveys to study habitat preferences and sexual segregation in two populations of northern white-tailed deer (Odocoileus virginianus) living at low density in southeastern Quebec. Based on the reproductive-strategy hypothesis invoked to explain sexual segregation, we predicted that females would select habitat with denser cover than males did throughout the growing season, but that this tendency would decline with fawn maturation. Deer of both populations and sexes avoided agricultural lands; one population preferred regenerating clearcuts and disturbed conifer stands (balsam fir and spruce), whereas the other preferred undisturbed cedar stands. Based on map analyses we did not detect sexual segregation. Field surveys revealed that deer did not select forest stands at random and that habitat preferences differed by sex. Early in the growing season, both sexes tended to use mid-successional, dense stands, whereas males progressively used younger, more open stands later in the season. Detecting habitat preferences of forest mammals may require fine-scale details that are unavailable on maps derived from aerial photographs.

scholarly journals Estimation of Agriculture-Forestry Transition Matrices from Aerial Photographs

1973 ◽  
Vol 5 (2) ◽  
pp. 147-153 ◽  
Author(s):  
Harry J. Van Loock ◽  
William L. Hafley ◽  
Richard A. King
Keyword(s):  
United States ◽  
Land Use ◽  
North Carolina ◽  
Forest Management ◽  
Management Practices ◽  
Aerial Photographs ◽  
Aerial Photo ◽  
Transition Matrices ◽  
Alternative Strategies ◽  
Rates Of Change

The difficulties associated with improving forest management practices on land held by farmers and other small landowners have been well documented. In North Carolina roughly four-fifths of all forest area is to be found in such holdings. To evaluate alternative strategies for improving land management, it is important to have information concerning the rates of change in land use on existing units. Aerial photographs provide a valuable source of this information, especially when flights have been made over an area at regular intervals extending back over several decades. In general, such regularity of aerial photo flights does exist for the continental United States. This article describes the use of such photographic data to construct land-use transition matrices.

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