FDCTFast Discrete Cosine Transform(ation)
FDCTFast Discrete Curvelet Transform
FDCTFlight Design CT (aircraft code)
FDCTFrequency Domain Coding Technique
FDCTFollicular Dendritic Cell Tumor (pathology)
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The result of the control test (without PSO training) is shown in table 2, and using FDCT (proposed) Algorithm are shown in Table.
By applying PSO, the proposed algorithm can automatically and adaptively select the optimal FDCT coefficients before embedding a watermark.
4052 Table 3: Proposed: Simulation results of Host image Lena with PSO using FDCT.
The diagnostic IHC profile of FDCT consists of positive staining of the neoplastic cells for CD21, CD35, and/or CD23.
Primary FDCT uncommonly occurs in extranodal sites.
The differential diagnosis of FDCT includes other tumors of histiocytic or dendritic origin.
The histologic appearance is indistinguishable from FDCT.
Features distinguishing inflammatory pseudotumor-like follicular dendritic cell tumor from conventional FDCT include a striking female predominance, exclusive intraabdominal site involvement (especially liver and spleen), frequent presence of systemic symptoms, indolent behavior, prominent lymphoplasmacytic infiltration, and strong association with Epstein-Barr virus.
Some properties of practical FDCT and IDCT implementations raise the issue of what precisely should be required by the JPEG standard.
Even in light of the finite precision of the DCT inputs and outputs, independently designed implementations of the very same FDCT or IDCT algorithm which differ even minutely in the precision by which they represent cosine terms or intermediate results, or in the way they sum and round fractional values, will eventually produce slightly different outputs from identical inputs.
To preserve freedom for innovation and customization within implementations, JPEG has chosen to specify neither a unique FDCT algorithm nor a unique IDCT algorithm in its proposed standard.
The 12-bit codecs, needed to accommodate certain types of medical and other images, require greater computational resources to achieve the required FDCT or IDCT accuracy.