Data Sheet
MLX90640 32x24 IR array
Datasheet
Page 25 of 60
REVISION 11 – 3 AUGUST 2018
A==
R]^
38
KK
>p%q%q
>p>>>
%
38
(i.e. the four most significant bits, signed)
If A==
R]^
38
A==
R]^
38
A==
R]^
38
A==
rf*gS
1de
KK
>p%q%>
>p>>>
%
s
(unsigned)
A==
f]ghij
3t
KK
>p%q%—
>p>>>
%
38
(i.e. the four most significant bits, signed )
If A==
f]ghij
3t
A==
f]ghij
3t
A==
f]ghij
3t
A==
rf*gS
adblmn
KK
>p%q%>
>p>>>
%
u
(unsigned)
’
‚wpSg
&
'
KK
>p%"˜
>p>(˜>
%
u
If ’
‚wpSg
&
'
’
‚wpSg
&
'
’
‚wpSg
&
'
A==
rf*gS
1cmn0n2
‰ (unsigned)
11.1.5.
11.1.5.11.1.5.
11.1.5. Restoring the Kv(i,j) coefficient
Restoring the Kv(i,j) coefficientRestoring the Kv(i,j) coefficient
Restoring the Kv(i,j) coefficient
&w…'
depend on the pixel position in the array i.e. if the pixel row and column is odd or even
If row number is ODD (1, 3, 5…23) and column number is ODD (1, 3, 5…31) then
&w…'
KK
>p%q(q
>p˜>>>
%
38
If row number is EVEN (2, 4, 6…24) and column number is ODD (1, 3, 5…31) then
&w…'
KK
>p%q(q
>p>˜>>
%
s
If row number is ODD (1, 3, 5…23) and column number is EVEN (2, 4, 6…32) then
&w…'
KK
>p%q(q
>p>>˜>
%
u
If row number is EVEN (2, 4, 6…24) and column number is EVEN (2, 4, 6…32) then
&w…'
‰
If
&w…'
&w…'
&w…'
&%‹'
;
,&_k'
%
5
,
a0bc
(signed)
Where:
a0bc
KK
>p%q(
>p>˜>>
%
s
(unsigned)
11.1.6.
11.1.6.11.1.6.
11.1.6. Restoring the Kta(i,j) coefficient
Restoring the Kta(i,j) coefficientRestoring the Kta(i,j) coefficient
Restoring the Kta(i,j) coefficient
?*&%‹'
;
.0M™{Mšš
<
;
.0&383t'Mšš
!
5
.0
a0bcM8
5
.0
a0bcM3
Where:
?*&%‹'MKK
KK>p%"D>p>>>›
%
(signed)
If
?*&%‹'MKK
)I& 'M
)I& 'M
N