Unibrain Fire-i 501/511/601/701/702/810 Operation Manual Page 48
4.1.3. Full Binning
Full binning mode can be obtained by combining vertical and horizontal binning. First horizontal pixels are combined
followed by a vertical conjunction of these pixels. This would increase light sensitivity by a factor of 4 in case of 2 x 2
(Horizontal x Vertical) binning. However as described above, only vertical binning would result speed gain while
horizontal binning gives no speed gain thus speed gain results as similar to vertical binning. Resolution in this mode
would be reduced both horizontally and vertically.
2x2 Full Binning
Example