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深圳市賽麥吉圖形處理有限公司
深圳市賽麥吉圖形處理有限公司
標準的SFRplus測試圖卡按需定制圖卡，這張透射（背光）SFRplus測試圖卡可以用于測量MTF、橫向色差、失真和音調響應。
標準的SFRplus測試圖卡按需定制圖卡
這張透射（背光）SFRplus測試圖卡可以用于測量MTF、橫向色差、失真和音調響應。SFRplus模塊采用全自動化的圖像區域檢索。這張SFRplus測試圖卡提供了超過常用圖卡的顯著優勢，比如ISO12233圖卡，這些優點包括：
1)減少圖卡的面積的浪費
2)在傳感器表面檢測圖像銳度的能力
3)由于較低的對比度圖像可以提供更高的測量精度
4)全面支持自動化測試
這張透射測試圖卡設計直接安裝到透射燈箱上使用。整張圖的模塊到模塊的高度和寬度設計和切割正好符合透射燈箱的照射面，盡可能少的避免漏光現象。
標準的SFRplus測試圖卡按需定制圖卡
The SFRplus test chart can be used with the Imatest SFRplus module to measure MTF, lateral chromatic aberration, distortion, and tonal response. The SFRplus module features fully automated region-of-interest detection. The SFRplus chart offers significant advantages over commonly used charts such as the ISO 12233 chart, including 1) much less wasted area, 2) the ability to produce a map of sharpness over the sensor surface, 3) better measurement accuracy due to the lower contrast, and 4) full support for automated testing.
These transmissive charts are designed to mount directly into the light boxes produced by GTI. The bar-to-bar height and width of the total chart are designed and cut to fit into the GTI light boxes with as little light bleed as possible.
Details
Substrates
These charts are produced on either photographic film with a high-precision LVT film recording process for the best possible density range, low noise, and fine detail, or on a translucent inkjet film.
LVT Film Resolution
The edges have an MTF50 >= 10 cycles/mm, which is about 2-3 times better than the best inkjet charts. The large patterns are fine enough to produce good results with up to 30 megapixel cameras.
Inkjet Film
The edges have an MTF50 >= 4 cycles/mm. The large patterns are fine enough to produce good results with up to 10 megapixel cameras.
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