Analysis on digital holographic data representation and compression

Compression Performance Analysis of Experimental Holographic Data Coding Systems

“…The renderer uses amplitude and phase data to modulate light waves in space and time to reconstruct the hologram. In this design, we let the CGH renderer [ 4 ] use the same phase file for a simplified rendering process, because the phase data do not interfere with the rendering process.…”

“…Some related studies [ 4 , 5 , 6 ] employed JPEG, JPEG 2000, and high-efficiency video coding (HEVC) to compress CGH data. Compression of RGBD data using JPEG has also been studied [ 4 ]. At a bit rate of 6.5 kB/s, a 320 × 240 sized RGBD data sample was evaluated.…”

“…Some related studies [4][5][6] employed JPEG, JPEG 2000, and high-efficiency video coding (HEVC) to compress CGH data. Compression of RGBD data using JPEG has also been studied [4].…”

Impact of coherence length on the field of view in dark-field holographic microscopy for semiconductor metrology: theoretical and experimental comparisons

“…In essence, DHM is a well-known technique that has already been described in many papers, such as Refs. [13][14][15][16][17][18][19][20][21][22][23][24]. In summary, in DHM the light scattered from the sample (object field) is coherently mixed with a reference beam, resulting in an interference pattern on the camera that allows the acquisition of both amplitude and phase of diffracted fields [13,15].…”

“…[13][14][15][16][17][18][19][20][21][22][23][24]. In summary, in DHM the light scattered from the sample (object field) is coherently mixed with a reference beam, resulting in an interference pattern on the camera that allows the acquisition of both amplitude and phase of diffracted fields [13,15]. In our investigation, we look into df-DHM because specularly reflected light often has a low sensitivity for the parameter of interest like OV, and we therefore do not want to include the zeroth order in the image acquisition.…”