Table 3.

Exp. Para.: experimental parameters; Imag. Para.: image parameters; Sig. Str.: signal strength; Spa. Resl.: spatial resolution; Temp.Resl.: temporal resolution. ↑: increase; ↓: decrease; ↑↓: increase and then decrease; ↓↑: decrease and then increase; ×: not correlated.

Img. Para.	Sig. Str. & SNR	Spa. Resl.	Temp. Resl.
Exp. Para.
(optical) CCD camera recording time ↑	↑↓	↓↑	↓
(acoustic) FU power ↑	↑	↓	↓
(sample) Thickness ↑	↓	×	×
(optical) Gating delay ↑	↑↓ or ×	×	×
(optical) Total CCD exposure time ↑	↑	↓	↓