Photo interpretations

What is Photo interpretation?

Photo interpretation is the art of examination of objects in photomaps, aiming to recognize them and estimate their size.

What’s the use the photo interpretation?

Such study can answer, for a specific area and for a specific date or periods in time, questions such as:

Photo interpretation is a window into the past. From this window you can see anywhere in the country at different points in time. What we see, we identify 

and this is then recognized with a full evidentiary value and legal value in court. The possibilities offered by the science of surveying, photogrammetry and remote sensing are countless. 

 

At relatively low cost, satellite images can also be used by our office, which has the necessary equipment and software to do so.

 

Aerial photos are absolute and irrefutable proof of the type of a plot of land (forested or not), not only because they are public documents, but also because they contain imprinted indisputable facts which bear a specific date and time and are the most absolute way of representing reality. 


On what basis are our photo interpretation reports drafted?

Aerial photographs of Greece are the following dates: 

  • Full coverage of the Athens basin in 1937. In 1937 became a full coverage of the basin was carried out with 1:37.000 scale aerial photographs and the next two years included additional shots from the Army Geographical Service (GSA).n 1939, 115 additional aerial photographs were taken in Drama and 345 in Athens Lavrion.
  • Partial coverage of Greece in 1938.
  • Full coverage of Greece in 1945 and 1960.  During these years, a full coverage of Greece was achieved (excluding the Dodecanese which were annexed to Greece in 1945  and were not included in the 1945 photographs) at scales of 1:42.000 (1945) and 1:30.000 (1960). 
  • Full coverage at various dates after 1970 and about every ten years.  The Army Geographical Service downloads a file from after 1970 of over 280,000 aerial photographs. The O.K.CH.E. also has a file with about as many downloads for the period from 1970 to today. The Aerial Photographs used are original, available from the GSA: Geographic Service Army, the O.K.CH.E.: Mapping and Cadastral Organization of Greece's Y.P.E.K.A. and the Ministry of Agriculture (Ministry of Agriculture).

 

What other items that can be used in a Photo interpretation study?

  • Available satellite imagery from Space Imaging, the e - GEOS or Rapid Eye and other companies with high accuracy (1X1 or 0.5 CH0, 5 of a meter) can be ordered with a specific date after 1999. Such photographs may be available up to the current year. 
  • The satellite images now used are very high resolution ( VHR ) images from the following satellites:
  • WorldView-1 with a resolution of 50cm,
  • WorldView-2 also analyze 50cm,
  • Panchromatiki GeoEye-1 (black) analysis 50cm,
  • QuickBird also panchromatic analysis 60cm,
  • Ikonos broken down to 1m.

 

There are also many other references that can be used.

Historical maps from reliable map files that we access.

We compare many diagrams and drawings from different services: urban planning, Ministry of Agriculture, land acquisition, photogrammetric diagrams, application operations, plans of cities, diagrams of the Army, the specific maps of Municipalities, Seashore, the Y.A.S. (Earthquake Rehabilitation Service) and many other organizations

 

We have developed a special method of exploiting lateral shots. In this method, we find old photos of specific areas and using our method we convert the downloads in order to support legal cases, when it is impossible to find other references for a plot. This study has developed lateral shots from our office and we are especially proud of its effectiveness. 

 

What does a photo-interpretation study include?

The text of the study (Technical Report) describing in detail both the methods used but of course all aspects of the case with a detailed description of the findings of each shot for all items relating to the property.

The drawings accompanying the original larger aerial outlining plans to the findings of stereoscopic observation. The stereoscopic observation is an essential tool of photo-interpretation. Virtually everything is done in stereo photo interpretation of aerial photographs. This observation leads to the identification and localization of the findings. The observation is much better than the monoskopiki it just may recognize the terrain, the elevations, the height of construction of objects and vegetation but also the recognition of the kind of plot.

3 D presentation We have developed methods of presentation in which every reader can study and see in three dimensions!

Both you and third parties (judges, forest officers, engineering planning, committees, managers of services for the study) can see stereoscopic 3 D ! This is done using tools that we can supply you with, at very low cost.

The attachments accompanying the study. The study may be comparative and includes a series of projects and other evidence. The presentation of these is a single form and is easily understood by the reader.


Why choose the xyz company?

  • We havesignificant experiencein each of the above fields of application of photo- interpretation since 1995.
  • We have studied and specialized in exactly this ie topography photo interpretation and photogrammetry.
  • We have state of the art digital equipment
  • We also havethe most modern analog equipment, mirror stereoscopes with special lenses and lighting
  • Using the topographic office equipment and the specialized personnel we can measure directly,  using rural geodetic receivers GPS
  • Our office is on Evelpidon Street 31 (ground floor, across the street from the Army Geographic Service) in order to efficiently serve your needs, carrying out research, ordering and delivering aerial photographs and other materialsfrom the competent service.
  • We produceevidence based on photographs that have been taken from the ground!Ask us about the studies we have prepared.We are proud to present these studies simply because we are the only ones who have developed the methods to carry them out!
  • We can present our studies in three dimensions, allowing you to visualise the past in three dimensions.
  • Because the name of our office ‘xyz’ represents the three dimensions!