Abstract The processing efficiency of the widely used time-space (t-x) domain vertical seismic profiling (VSP) wavefield separation methods (such as median and singular value decomposition filtering) via one-dimensional discrete Fourier transform (DFT) depends on method (or algorithm with parameter) total number samples in input VSP data. Once is determined, its set cannot be optimized. Althoug...

The main goal of dry cow therapy (DCT) is to cure existing intramammary infections (IMI) at dry off. Although several published studies have estimated the cure rate of IMI after DCT, variation among studies is great, which makes it difficult to conduct a proper economic evaluation of DCT. The objective of the present meta-analysis of existing peer-reviewed literature was to provide a summary qu...

The H.266/versatile video coding (VVC) standard is the most recent ITU/ISO finalized in July 2020. VVC includes several new tools at different levels of scheme. These enable a significant bitrate saving up to 50% for same subjective quality than its predecessor H.265/high efficiency (HEVC). Among these tools, we can cite multiple transform selection (MTS) which selects encoder horizontal and ve...

INTRODUCTION Intraocular pressure (IOP) determination using dynamic contour tonometry (DCT) has been considered to be independent of central corneal thickness (CCT), while Goldmann applanation tonometry (GAT) is known to be influenced by various corneal properties. In this study, IOP was measured before and 1 day after cataract surgery using GAT and DCT to investigate the possible effects of co...

PURPOSE To compare the intraocular pressures (IOPs) measured by dynamic contour tonometry (DCT) and Goldmann applanation tonometry (GAT), and to investigate the association of IOPs on eyes of varying central corneal thickness (CCT). METHODS In this prospective study, 451 eyes of 233 subjects were enrolled. IOPs were measured by GAT and DCT. CCT was measured three times and the average was cal...

This paper describes the field programmable gate array (FPGA) implementation of a fast 2-D discrete cosine transform (DCT) chip for higher image compression ratio. The development of encoding and decoding parts of 2-D DCT algorithm is carried out by using Matlab simulation tools and VHSIC hardware descriptive language (VHDL). Comparisons of results for higher image compression ratio as obtained...

 In this paper, we illustrate that the zerotree quantizer developed originally for wavelet compression can be effectively applied to Discrete Cosine Transform (DCT) in a hierarchical way. In this Hierarchical DCT (HDCT), the input image is partitioned into a number of 8× 8 blocks and a first level DCT is used to each of these blocks individually. As DC coefficients of DCT neighboring blocks ar...

The mammalian distal nephron develops a complex assembly of specialized cell types to accomplish the fine adjustment of urinary electrolyte composition. The epithelia of the distal convoluted tubule (DCT), the connecting tubule (CNT), and the cortical collecting duct (CCD) show an axial structural heterogeneity that has been functionally elucidated by the localization of proteins involved in tr...

Recent success in discrete cosine transform (DCT) image coding is mainly attributed to recognition of the importance of data organization and representation. Currently, there are several competitive DCT-based coders such as Xiong et al.’s DCT-based embedded image coding (EZDCT), Davis and Chawla’s significance tree quantization (STQ), and Zhao et al.’s embedded zerotree image coder based on hie...