First Light C-BLUE One, Руководство пользователя

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The configuration of the active set of rows and columns intervals is done using the
proprietary registers
SparseWidth
,
SparseHeight
,
SparseOffsetX
and
SparseOffsetY
. The register
SparseSelector
specifies which set of columns and rows is currently modified. Once configured, the set
must be enabled using SparseMode .
The sets of columns/rows must be configured and activated in increasing order,
e.g.
, using
SparseSelector
0, then 1 and so on. It is only possible to activate the Nth set of columns only if all N-1
first sets have been enabled. Deactivation order must be done in decreasing order.
Rules:

All ROIs must be aligned on 8 columns and 16 rows boundaries

All ROIs width must be multiple of 8 columns

All ROIs height must be multiple of 16 rows

All ROIs must be separated: they cannot overlap and cannot be adjacent
It is also possible to define up to 8 horizontal or 8 vertical ROIs.

When defining horizontal ROIs, all ROIs have a fixed width, corresponding to the sensor width.

When defining vertical ROIs, all ROIS have a fixed height, corresponding to the sensor height.
Table 34 - Description of the SFNC registers associated to multiple ROI support
Name Access Values Description
SparseSelector
RW
Region0,
Region1, … ,
Region7 A selector is used to index which instance of the
feature is accessed. The selected feature will
control the sparse region #X.
SparseMode
RW Off, On
Disable / enable the usage of the sparse area
defined by the sparse selector.
SparseWidth
RW
8, 16, …,
WidthMax Width of the sparse area (in pixels) defined by the
sparse selector.
SparseHeight
RW
16, 32, …,
HeightMax Height of the sparse area (in pixels) defined by the
sparse selector.
SparseOffsetX
RW
0, 7, …,
WidthMax-8 Horizontal offset from the origin to the sparse
area (in pixels) defined by the sparse selector.
SparseOffsetY
RW
0, 15, …,
HeightMax-16 Vertical offset from the origin to the sparse area
(in pixels) defined by the sparse selector.
Below are examples of the definition of multiple ROIs. Figure 16: shows the configuration in which
multiple sets of full columns are selected. Figure 17: illustrates the case when multiple sets of lines
are selected. Figure 18: is an example of the definition of multiple ROIs.