Methods for Creating Rectify Image:
Rectify photography:
Image taken or developed in way to avoid any perspective distortions.
Rectify image of the mosaic floor "Ibex", area NN, Caesarea.
48 pictures were taken from tripod and assembled in computer to complete image.


Orthophotography:

The same, but done with special equipment and much higher level of accuracy - every single point of the image relates to his x-y coordinates in the real object.
Both methods could be used to present two-dimensional projection of the object's flat surface without perspective distortions.

There are also another three-dimensional methods like:
Stereophotogrametry, Laser Scanning or another scientific methods, etc.
Laser scanner recording of the mosaic floor "Ibex", area NN, Caesarea done from Robin Letellier and team from
The National Research Council of Canada
What to use:
Rectify photography - cheap, fast, universal equipment, lower level of accuracy.
Orthophotography - expensive, special equipment, high level of accuracy.
Three-dimensional methods - very expensive, special equipment, very high level of accuracy, great amount of information.
Here come the questions:
What level of accuracy we need?
What are the limits of the budget and timetable?

The answers of these questions determinate the choice which method to use.

In Israel we think that:
The method of rectify photography with its level of accuracy and low cost is most useful for routine conservation needs.
To perform another method is necessary only in case of some kind of researching work or long-term project with special budget.

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