منابع مشابه
Correcting spurious resolution in defocused images
Optical modeling suggests that levels of retinal defocus routinely caused by presbyopia should produce phase reversals (spurious resolution−SR) for spatial frequencies in the 2 cycles/letter range known to be critical for reading. Simulations show that such reversals can have a decisive impact on character legibility, and that correcting only this feature of defocused images (by re-reversing co...
متن کاملSpurious Hyperleukocytosis
Hyperleukocytosis is an oncological emergency but is extremely rare in non-malignant conditions. Nucleated RBCs give rise to spuriously high total leucocyte count and cause clinical dilemma. Thalassemia major patients are known to have leucocytosis even after correction for nucleated RBCs. We report a case of undiagnosed Thalassemia major in a 4 month old infant with total leucocyte count highe...
متن کاملCorrecting second-order contamination in low-resolution spectra
The availability of large format CCDs with high quantum efficiency over a wide wavelength range, makes possible most modern low-resolution spectrographs to have the capability to obtain spectra that cover the whole optical range (3200–10000 Å) in a single exposure. However, it follows from the theory of diffraction gratings (see, e.g., Schroeder 2000) that different diffraction orders overlap, ...
متن کاملCorrecting chromatic offset in multicolor super-resolution localization microscopy.
Localization based super-resolution microscopy techniques require precise drift correction methods because the achieved spatial resolution is close to both the mechanical and optical performance limits of modern light microscopes. Multi-color imaging methods require corrections in addition to those dealing with drift due to the static, but spatially-dependent, chromatic offset between images. W...
متن کاملspurious hyperleukocytosis
hyperleukocytosis is an oncological emergency but is extremely rare in non-malignant conditions. nucleated rbcs give rise to spuriously high total leucocyte count and cause clinical dilemma. thalassemia major patients are known to have leucocytosis even after correction for nucleated rbcs. we report a case of undiagnosed thalassemia major in a 4 month old infant with total leucocyte count highe...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2005
ISSN: 1534-7362
DOI: 10.1167/5.12.97