A two-step holographic process is presented where first step is recording of contiguous object slices at correspondingly ordered plate stripes. The second holographic recording is made out of the real pseudoscopic reconstruction after the first hologram. Illumination of the final hologram with a conjugate white light beam produces a rainbow presentation where colors encode the object depth contouring.
"Rainbow Contouring By Holographic Multiplexing", Proc. SPIE 0812, Progress in Holography, (6 October 1987); doi: 10.1117/12.941627; https://doi.org/10.1117/12.941627