Canon SX150 IS has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Digic 4 processor. On the other hand, Fujifilm S8100fd has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the SX150 IS and S8100fd sensor size comparison.
Canon SX150 IS and Fujifilm S8100fd have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.