Information About Radiology
Category Image Processing Term Dynamic Range Compression Definition of Dynamic Range Compression Algorithm That Reduces Range Of Echo Amplitudes To Fit Display Capabilities Notes About Dynamic Range Compression Affects Contrast And Perceived Noise
Category Image Processing Term Frequency Compounding Definition of Frequency Compounding Combining Images From Multiple Frequencies To Reduce Speckle And Improve Detail Notes About Frequency Compounding May Improve Contrast Resolution
Category Image Processing Term Unsharp Mask Definition of Unsharp Mask Technique To Increase Apparent Sharpness By Subtracting A Blurred Version From Original Notes About Unsharp Mask Common In Digital Radiography
Category Image Processing Term Reconstruction Algorithm Definition of Reconstruction Algorithm Mathematical Method To Convert Acquired Signals Into Displayable Images Notes About Reconstruction Algorithm Different Algorithms Affect Appearance
Category Image Processing Term Median Filter Definition of Median Filter Nonlinear Filter To Reduce Salt And Pepper Noise While Preserving Edges Notes About Median Filter Used In Postprocessing
Category Image Processing Term Optical Flow Registration Definition of Optical Flow Registration Motion Tracking Technique For Aligning Sequential Frames Based On Pixel Movement Notes About Optical Flow Registration Used In Freehand 3D And Stabilization
Category Image Processing Term Scatter Correction Definition of Scatter Correction Techniques To Estimate And Remove Scattered Photon Contribution From Images Notes About Scatter Correction Improves Quantitation And Contrast
Category Image Processing Term Histogram Equalization Definition of Histogram Equalization Contrast Enhancement Technique That Redistributes Gray Levels To Improve Visibility Notes About Histogram Equalization May Alter Quantitative Appearance
Category Image Processing Term Reconstruction Kernel Definition of Reconstruction Kernel Filter Applied During Reconstruction To Trade Off Spatial Resolution And Noise Notes About Reconstruction Kernel Sharp Kernels Enhance Bone Detail; Smooth Kernels Reduce Noise
Category Image Processing Term Grayscale Mapping Definition of Grayscale Mapping Mapping Of Echo Amplitudes To Display Gray Shades Notes About Grayscale Mapping Adjustable To Emphasize Tissue Contrast