Fig. 2.

Schematic of the H-scan format. Beamformed A-line echoes collected from a pulse–echo scanner are processed in a parallel fashion. Convolution with $\mathbf{G}{H}_2$ is assigned red, convolution with $\mathbf{G}{H}_8$ is assigned blue, and the envelope is assigned green. Processing can be done in real time or on stored RF signals. All three channels are typically displayed on a 45-dB dynamic range.