Transfer function analysis of radiographic imaging systems.

The following subjects are considered: principles of transfer function analysis of imaging systems (including: linear, shift-invariant imaging systems; Fourier analysis; transfer function analysis); applications to radiographic imaging systems (including: system linearisation; the object; geometrical unsharpness (GU); screen-film system unsharpness (SFSU); combined effects of GU and SFSU; other unsharpness effects; noise analysis).

[1]  K. Rossmann.  Point spread-function, line spread-function, and modulation transfer function. Tools for the study of imaging systems. , 1969, Radiology.

[2]  W. Roeck,et al.  The field characteristics of the focal spot in the radiographic imaging process. , 1973, Investigative radiology.

[3]  H L Kundel,et al.  Spatial frequency spectra of radiographic images. , 1971, Radiology.

[4]  K Rossmann,et al.  The spatial frequency spectrum: a means for studying the quality of radiographic imaging systems. , 1968, Radiology.

[5]  K Koi,et al.  Comparison of convolution and ray-tracing methods for computing small blood vessel images in angiography. , 1977, Medical physics.

[6]  A. Stargardt,et al.  Evaluation of image quality in tomographic imaging. , 1977, Physics in medicine and biology.

[7]  Effects of motion on the radiological image. , 1977, Radiology.

[8]  K Rossmann,et al.  Modulation transfer function associated with geometrical unsharpness in medical radiography. , 1967, Physics in medicine and biology.

[9]  K Rossmann,et al.  The effect of geometric and recording system unsharpness in mammography. , 1975, Investigative radiology.

[10]  Resolution of field-emission x-ray sources. , 1975, Radiology.

[11]  A. Haus,et al.  Comparison of the calculated object x-ray pattern with its radiographic image energy flux density distribution. , 1973, Physics in medicine and biology.

[12]  M. Hoefert.  [MEASUREMENT OF CONTRAST TRANSFER FUNCTION BY MEANS OF X-RAY INTENSIFIER SCREENS]. , 1963, Acta radiologica: diagnosis.

[13]  U V RGopala Rao,et al.  The modulation transfer functions of x-ray focal spots. , 1969, Physics in medicine and biology.

[14]  S C Orphanoudakis,et al.  Mathematical model of conventional tomography. , 1976, Medical physics.

[15]  K. Rossmann,et al.  Practical use of medium and slow-speed screens for cerebral angiography. , 1973, Radiology.

[16]  K Rossmann,et al.  Some characteristics of the line spread-function and modulation transfer function of medical radiographic films and screen-film systems. , 1966, Radiology.

[17]  Burgess Ae.  Focal spots: III. Field characteristics. , 1977 .

[18]  K Rossmann,et al.  Truncation errors in calculating the MTF of radiographic screen-film systems from the line spread function. , 1972, Physics in medicine and biology.

[19]  K Doi,et al.  Image quality in mammography. , 1977, Radiology.

[20]  Kunio Doi,et al.  Role of Optical Transfer Function for Optimum Magnification in Enlargement Radiography , 1970 .

[21]  H Imhof,et al.  Noise reduction by radiographic magnification. , 1977, Radiology.

[22]  R. F. Wagner,et al.  Toward a unified view of radiological imaging systems. Part II: Noisy images. , 1977, Medical physics.

[23]  C E Metz,et al.  Choice of line spread function sampling distance for computing the MTF of radiographic screen-film systems. , 1972, Physics in medicine and biology.

[24]  Kunio Doi.  Scans in Measuring Wiener Spectra for Photographic Granularity , 1966 .

[25]  K Rossmann,et al.  New device for accurate measurement of the x-ray intensity distribution of x-ray tube focal spots. , 1975, Medical physics.

[26]  M. Capp,et al.  An improved technique for x-ray image evaluation. The two dimensional modulation transfer function. , 1974, Investigative radiology.

[27]  Erik Ingelstam.  Nomenclature for Fourier Transforms of Spread Functions , 1961 .

[28]  K. Doi,et al.  Effect of geometric unsharpness upon image quality in fine-detail skeletal radiography. , 1974, Radiology.

[29]  E. H. Linfoot.  Fourier Methods in Optical Image Evaluation , 1964 .

[30]  Density dependence of the line spread function of radiographic screen-film systems. , 1973, Physics in medicine and biology.

[31]  K. Doi,et al.  Validity of the MTF of magnification radiography. , 1972, Physics in medicine and biology.

[32]  K Rossmann,et al.  X-ray sensitometer for screen-film combinations used in medical radiology. , 1970, Radiology.

[33]  G. Harding.  Optimum spread functions in linear tomography. , 1977, Physics in medicine and biology.

[34]  K. Doi,et al.  A simple source of fluorescent x rays for the study of radiographic imaging systems. , 1977, Medical physics.

[35]  K Rossmann,et al.  Effect of focal spot distribution on blood vessel imaging in magnification radiography. , 1975, Radiology.

[36]  A. Burgess.  Effect of asymmetric focal spots in angiography. , 1977, Medical physics.

[37]  K. Doi,et al.  Effect of film graininess and geometric unsharpness on image quality in fine-detail skeletal radiography. , 1975, Investigative radiology.

[38]  K. Doi,et al.  X-ray images of small blood vessels in angiography: question of isoplanatism. , 1975, Medical physics.

[39]  D. Goodenough,et al.  Radiographic imaging using an effective rotationally symmetrical focal spot. , 1976, Radiology.

[40]  K Rossmann,et al.  Validity of the modulation transfer function of radiographic screen-film systems measured by the slit method. , 1968, Physics in medicine and biology.

[41]  K. Rossmann,et al.  MEASUREMENT OF THE MODULATION TRANSFER FUNCTION OF RADIOGRAPHIC SYSTEMS CONTAINING FLUORESCENT SCREENS. , 1964, Physics in medicine and biology.

[42]  Burgess Ae.  Focal spots: I. MTF separability. , 1977 .

[43]  K Rossmann,et al.  The effect of radiographic magnification on blood vessel imaging with various screen-film systems. , 1974, Medical physics.

[44]  R. F. Wagner,et al.  Fast Fourier digital quantum mottle analysis with application to rare earth intensifying screen systems. , 1977, Medical physics.

[45]  B. Moores,et al.  The modulation transfer function of the focal spot with a twin-peaked intensity distribution. , 1973, Radiology.

[46]  I. Lerch.  On the relationship between the x-ray pattern, photon energy and dose for a simple phantom. , 1972, Physics in medicine and biology.

[47]  K. Rossmann,et al.  A method of measuring image degradation in tomography. , 1973, Radiology.

[48]  G Lubberts.  The line spread-function and the modulation transfer function of X-ray fluorescent screen-film systems--problems with double-coated films. , 1969, The American journal of roentgenology, radium therapy, and nuclear medicine.

[49]  Kunio Doi,et al.  Comparison of Image Quality Obtained with Optical and Radiographic Magnification Techniques in Fine-Detail Skeletal Radiography: Effect of Object Thinkness1 , 1976 .

[50]  K Doi.  Field characteristics of geometric unsharpness due to the x-ray tube focal spot. , 1977, Medical physics.

[51]  C E Metz,et al.  Linearizing mechanisms in conventional tomographic imaging. , 1978, Medical physics.

[52]  D. Adams,et al.  A computer model for the study of image formation of blood vessels smaller than the exposing focal spot. , 1973, Radiology.