.za by Microsoft-IIS serving 11.60% of the total .za domains. The most common 1st character in domain names is "c", with 10.76% of .za domains starting with this character. .za .za is the Internet country code top-level domain (ccTLD) for South Africa. The .za namespace is managed and regulated by the .za Domain Name Authority (ZADNA). Most domains are registered under the second-level domain .co.za. None of the official names for South Africa can be abbreviated to ZA, which is an abbreviation of the Dutch "Zuid-Afrika". Dutch was considered an official language in the Union of South Africa until 1961; it
Image registration results. However, many approaches to quantifying uncertainty or estimating deformations are computationally intensive or are only applicable to limited sets of spatial transformations. Image registration has applications in remote sensing (cartography updating), and computer vision. Due to the vast range of applications to which image registration can be applied, it is impossible to develop a general method that is optimized for all uses. Medical image registration (for data of the same patient taken at different points in time such as change detection or tumor monitoring) often additionally involves "elastic" (also known as "nonrigid") registration to cope with deformation of the