Digital Holographic Data Representation and Compression

List of Figures

2.1 Hologram recording setup. BS, beam splitter. 4

2.2 Hologram reconstruction. 5

2.3 Coordinate geometry of hologram reconstruction. 5

2.4 Coordinate system of wave propagation. 14

2.5 Geometry of wave-oriented methods with tilted object surface. 15

2.6 Example of reconstructed object with zero-order image. 17

2.7 Setup for phase-shifting digital holography: PZT, piezoelectric transducer mirror. 18

3.1 Generic compression scheme. 20

3.2 Quantization process: Q represents the encoding or quantization stage and Q⁻¹ represents the decoding or inverse quantization stage. 20

3.3 Zerotree or spatial-orientation tree. 22

3.4 Schematic block diagram of JPEG 2000. 23

4.1 Test objects: “Luigi,” “Girl,” and “Bunny.” 29

4.2 Example of shifted distance ...