With QCTools we found a suitable tool for this task, but identified several areas where expanded capabilities could aid in the efficiency or accuracy of our quality control work.
#Qctools report manual#
That is why we were looking for a way to optimize and support the manual QC. This makes quality control very time-consuming, especially in larger-scale digitization projects with few resources on the QC side. Many things can only be checked in real time, i.e. An example for a digitization error, on the other hand, is playing and subsequently recording the film at the wrong frames per second speed. An example are sprocket holes from 16 mm film which – depending on decisions made for digitization – may be visible in the digital representation as a conscious decision. In addition manual quality control is conducted, which includes tasks such as checking the correct naming of the files, correct content or visual detection of analogue or digital artifacts.Įach analogue film format has its own specific characteristics which will subsequently be present in the digital representation as well, but must be distinguished from digitization artifacts. Our QC includes automated processes such as checksum checks and validation of the files against our policy.
To give a brief overview of the workflow: every digital file we received from the external digitization service is subject to quality control (QC). While digitization is carried out by external vendors, we had to develop a workflow starting with the selection of the analogue film copy and ending with the ingest of the digital files into the digital archive. Digitization was started in 2017, since then approximately 2,500 film titles have been digitized another 700 film titles are planned. TIB’s film collection mainly consists of 16mm film with optical and magnetic sound as well as Digital Betacam. This includes overseeing digitization of the collection as well as the digital preservation of the objects created as a result. The Digital Preservation and Conservation teams of the TIB – Leibniz Information Centre for Science and Technology, Hannover, Germany are responsible for developing strategies for the conservation of physical film copies. A collaborative blogpost by Dave Rice (MediaArea), Merle Friedrich and Miriam Reiche (Technische Informationsbibliothek (TIB)) Introduction
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