All Questions
Tagged with georeferencing aerial-photography
20 questions
0
votes
0
answers
54
views
Georeferencing drone image different pitch-values
I am trying to georeference objects on an image. The image has been taking by a drone and I know the drones parameters.
Here is my script:
from math import radians, cos, sin, asin, atan2, degrees
from ...
- 161
3
votes
2
answers
376
views
Wrong parameters when georeferencing single drone images
I am using a DJI Mavic 3M drone to capture images from the ground view. DJI provides a guide on how to correct the images for the lens distortion. Each captured image contains XMP metadata about the ...
- 33
2
votes
0
answers
85
views
Geolocalizing archive aerial photos
I have ~125 analog aerial photographs from 1937 (examples below) and need to reconstruct their locations where the images were taken for a research project. Unfortunately, little is known about them: ...
- 29
2
votes
0
answers
63
views
Georeferencing historic airphotos along constantly-moving section of San Andreas fault?
I'm a geology graduate student working on a master's thesis project in which I'm measuring creep (movement) over time along a section of the San Andreas fault (in California, USA) using SfM derived ...
- 29
1
vote
0
answers
194
views
How to calculate the accuracy of georeferenced aerial images in meters if the mean error is in pixels?
I have scanned aerial images taken shortly after WWII and have to georeference them and calculate the mean error. I use the Projective transformation so the error after transformation is shown in ...
- 11
0
votes
0
answers
635
views
Cropping borders from images without invalidating georeferencing using ArcGIS Pro
I am using ArcGIS Pro2.4.
I have a large collection of georeferenced historical aerials. They all have borders of varying dimensions and varying shades of grey. These borders have to go somehow. I'...
- 542
-1
votes
2
answers
700
views
Georeferencing/orthorectifying oblique aerial imagery over water
Does anyone have any advice on how one might georeference/orthorectify oblique imagery taken over the open ocean from a manned aircraft? The aircraft will have an RTK-enabled GNSS/INS onboard. I was ...
0
votes
2
answers
2k
views
Red lines appearing in QGIS Georeferencing?
I am georeferencing some old aerial pictures in QGIS. The area encompass mountains, hills and a flat area.
For some pictures the error is quite low and I am satisfied with the overlapping (error is ...
- 533
0
votes
2
answers
233
views
Georeferencing screen shot of Bing imagery in ArcMap?
I've been using the world imagery layer in ArcMap for hand-digitizing possible restoration sites. This has generally been adequate except for a few instances in which the imagery is a bit old and ...
- 11
1
vote
0
answers
34
views
Quantifying error on georeferenced aerial imagery
I georeferenced historical aerial imagery of a coastal area to estimate the size of oil sheens on the surface of the ocean. The control points I used were on land (street intersections, buildings, etc....
- 113
1
vote
0
answers
162
views
Creating world files for a batch of aerial photos
I am looking for a way to geolocate a bunch of aerial photos by creating a world file per photo. The photos are taken in the same orientation and from the same altitude.
The work flow would be to ...
- 11
4
votes
2
answers
869
views
Performing aerial triangulation on scanned aerial photos without having surveyed ground control points (GCPs)?
I have a set of 1200 historical aerial photos covering North Carolina outer banks area from 1974, 1984 and 1992. I need to georeference them and produce seamless color balanced dataset that will be ...
- 121
0
votes
1
answer
406
views
Creating a raster mosaic from multiple un-referenced jpegs
I have multiple historical aerial photographs that I would like to use to compare coastal change over time in relation to urban development. The aerials I have obtained come in tiles that are not ...
- 75
3
votes
1
answer
689
views
Georeferencing batch geotagged photos
I am struggling with georeferencing over 300 aerial photographs. All of those photographs are geotagged and generally are rather easy to georeference but I am wandering if that can be done ...
- 121
3
votes
2
answers
112
views
Options for Aerials QGIS 2.10
I'm looking for options to add aerials to my QGIS Project. The OpenLayers plugin doesn't work (it says it's only available for versions 2.0 - 2.2), so I'm stuck moving from ArcMap to QGIS. Is there ...
- 249
0
votes
1
answer
71
views
Managing Many Georeferenced Large Files in ArcMap?
Does anyone have any ideas on how to best handle many large georeferenced files in an ArcMap Document?
I have somewhere around 250 individual historic aerials (none being in the same place or from ...
- 249
1
vote
0
answers
41
views
Orthorectify large set aerial images [duplicate]
I have a large set of images that I want to stitch the together and orthorectify. They have been taken from a small aircraft. The camera of the aircraft is tilted, thereby, although gps data is ...
- 11
4
votes
0
answers
4k
views
Aerial photo stitching and georeferencing? [closed]
I need to georeference 53 air photos from 1981 (1:25,000 scale) and was wondering what would be the most efficient, defensible, and accurate option. For context, the air photos are following a highway ...
- 149
0
votes
1
answer
473
views
Georeferencing an aerial image based on satellite imagery
As part of a bigger project I need to georeference an aerial image based on a landsat image downloaded form usgs. I use qgis. can I somehow place the layers on top of each other and mark certain ...
- 645
3
votes
3
answers
1k
views
Batch rectifying 200+ historic aerial images?
I have acquired historic aerial imagery for the surrounding towns, circa 1954, and the images have no georeference.
I am looking for software to help me batch-rectify the 200+ images. I have current ...
- 31