Image contrast definition

Image contrast means the amount of radiographic density difference between adjacent areas resulting from a fixed amount of attentuation difference or light exposure difference.
Sample 1Sample 2Sample 3
Image contrast means the amount of radiographic density difference between adjacent areas re- sulting from a fixed amount of attenuation difference or light exposure difference.
Sample 1Sample 2Sample 3

Examples of Image contrast in a sentence

  • Image contrast shall permit differentiation of subtle tissue density differences.

  • Instead, there could be a transition zone with intermediate objects such as arcades, light wells etc.

  • Image contrast within the correlation windows was expected to be as low as 0.5% for some of the proposed landing sites so even small dust particles could be a potential problem.Several different strategies were considered to mitigate the effect of dust artifacts on the DIMES algorithm.

  • A ROI, approximately 25 × 25- pixels was extracted from an occlusal surface area of sound enamel and a region within the composite and averaged to calculate the mean intensity from the respective regions Is and Ic. Image contrast was calculated using the equation (Ic-Is)/Ic. The image contrast varies from 0 to 1 with 1 being very high contrast and 0 having no contrast.

  • Image contrast represents the difference in the tip-surface in- teraction (with the SFM), or the tip-surface current (with the STM) at different surface sites, and all non- equivalent surface sites should be probed.

  • Image contrast is defined in different ways, but it is usually related to varia- tions in image luminance.

  • The Mayo QC team will perform the following measurements on the phantom data: Gradient Linearity Measurements, Signal to Noise measurements, Image contrast, Inhomogeneity, and RF Power measurements.

  • Image contrast to visualize bony anatomy was sufficient on all machines.

  • Image contrast is further enhanced by a Gaussian high pass filter.

  • Measurements:The Mayo QC team will perform the following measurements on the phantom data: Gradient Linearity Measurements, Signal to Noise measurements, Image contrast, Inhomogeneity, and RF Power measurements.

Related to Image contrast

  • Single tomogram system means a CT x-ray system which obtains x-ray transmission data during a scan to produce a single tomogram.

  • Switched Access Detail Usage Data means a category 1101xx record as defined in the EMI iconectiv Practice BR 010-200-010.

  • Fluoroscopic imaging assembly means a subsystem in which X-ray photons produce a visual image. It includes the image receptor(s) such as the image intensifier and spot-film device, electrical interlocks, if any, and structural material providing linkage between the image receptor and diagnostic source assembly.

  • X-ray high-voltage generator means a device which transforms electrical energy from the potential supplied by the x-ray control to the tube operating potential. The device may also include means for transforming alternating current to direct current, filament transformers for the x-ray tube(s), high-voltage switches, electrical protective devices, and other appropriate elements.

  • Multiple tomogram system means a computed tomography X-ray system which obtains X-ray transmission data simultaneously during a single scan to produce more than one tomogram.

  • Diameter means the diameter of the stem of a tree measured outside the bark at a specified point of measurement.

  • Interconnection Point means the point(s) of connection(s) at which the project is connected to the grid i.e. it shall be at 11 / 22 kV bus bar level of substation of MSEDCL.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.