The document discusses CTF correction and delocalization of 512x512 pixel images. It applies a CTF with parameters of -0.5 μm defocus, 2.7 mm spherical aberration, 0.07 amplitude contrast, and 80 Å2 B-factor. It also decomposes CTF application into a linear combination and mentions using a Wiener constant related to SSNR.

1. CTF correction
PSF - delocalization
512 x 512
central pixel
is 1.0

2. CTF correction
PSF - delocalization
CTF applied:
-0.5 µm
Cs = 2.7 mm,
Amp. Contrast = 0.07
B-factor: 80.0 Ų
512 x 512
central pixel
is 1.0

3. CTF correction
PSF - delocalization
512 x 512
central pixel
is 1.0
CTF applied:
-0.5 µm
Cs = 2.7 mm,
Amp. Contrast = 0.07
B-factor: 80.0 Ų

4. CTF correction
PSF - delocalization
512 x 512
central pixel
is 1.0
CTF applied:
-0.5 µm
Cs = 2.7 mm,
Amp. Contrast = 0.07
B-factor: 80.0 Ų

5. CTF correction
PSF - delocalization
512 x 512
central pixel
is 1.0
CTF applied:
-0.5 µm
Cs = 2.7 mm,
Amp. Contrast = 0.07
B-factor: 80.0 Ų
Wiener
constant
(related to SSNR)

6. CTF correction
10 2 0
8 4 3
3 10 18
=
10 0 0
0 0 0
0 0 0
+
0 2 0
0 0 0
0 0 0
+
0 0 0
0 0 0
0 0 0
+
0 0 0
8 0 0
0 0 0
+
0 0 0
0 4 0
0 0 0
+
0 0 0
0 0 3
0 0 0
+
0 0 0
0 0 0
3 0 0
+
0 0 0
0 0 0
0 10 0
+
0 0 0
0 0 0
0 0 18
CTF application
can be
decomposed
into linear
combination