低反差SFR测试卡
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名 称:低反差SFR测试卡
型号:QA-72C
品牌:Applied Image
描述:The following is a summary list of image features: Framing arrows which define 4:3 and 3:2 aspect ratios assist in framing the target's active area. A central multi-frequency zone plate on a black square can be used to set focus. Slightly slanted squares (approximately 5o) provide spatial frequency response (SFR) at multiple locations.
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This test pattern is an image evaluation tool for determination of resolving power, limiting resolution and spatial frequency response (SFR) of digital image systems at a low contrast signal point. The central OECF gray scale patches can be used to evaluate linearity. It is as specified in ISO-12233:2014, Annex C.

The ISO-12233 Low Contrast Edge SFR chart with 80:1 OECF Patches contains a variety of test pattern elements. Users are advised to refer to International Standard ISO-1233 for a detailed explanation of the target's features and their use.

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