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Artifacts-Basic

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Question
Answer
Negative density artifact appears...   Dark  
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Positive density artifact appears...   Light  
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In Film-Associated with how tech conducts the exam...   Exposure Artifacts  
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In Film-Improper positioning, pt motion, dbl exposure, incorrect technique, poor screen-film contact, and pt preparation are types of...   Exposure Artifacts  
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In Film-Roller marks, dirty rollers, chemical fog, wet-pressure sensitization are types of..   Processing Artifacts  
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...are due to guide shoe errors   Guide shoe marks  
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...are found on the leading or trailing edge of film, parallel to the direction of film travel   Guide shoe marks  
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...occur at 3.1416 inch intervals due to dirt or chemical stain on a roller   Pi lines  
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Pressure-type artifacts in emulsion appear as..   high density artifacts  
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Scrape-type artifacts that remove emulsion appear as...   low density artifacts  
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A special type of chemical fog, meaning "two colors" is called...   dichroic stain  
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...is caused by a dichroic stain or when chemistry runs up or down the film edge.   Curtain effect  
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Light or radiation fog, kink marks, static, and hypo retention are...   handling & storage artifacts  
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...are usually caused from handling before processing.   Kink marks  
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...is caused by build up of e-'s in emulsion, is the most common artifact   Static  
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Crown, tree, and smudge are types of   static artifacts  
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classifications of CR artifacts...   image receptor, software, object  
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Rough handling, dust, scratches, incomplete erasure, and faulty construction are types of...   image receptor artifacts  
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Pre-processing errors and image compression errors are types of..   software artifacts  
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...caused by dead pixels   Preprocessing artifacts  
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..fixes preprocessing artifacts   flatfielding  
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2 types of compression techniques..   lossless and lossy  
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improper histogram use, improper collimation and partition are types of...   object artifacts  
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Classifications of film/screen artifacts...   Exposure, processing, handling and storage  
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