Method of and device for measuring the distribution of a radiati

Details Method of and device for measuring the distribution of a radiati Method of and device for measuring the distribution of a radiati

1976-12-13

1979-03-13

Wise, Edward J.

Boots, shoes, and leggings

250445T, G01N 2306, G06F 1542

Patent

active

041445708

ABSTRACT:
When reconstructing the absorption values at picture elements of a plane under examination from measured values which were measured by means of a scanner for transverse tomography, it is necessary to assign at least one intermediate value to each picture element from each measured series. In general said intermediate value must be computed from up to three measured values and weight factors. The invention describes a computation method in which the intermediate values which are assigned to the various picture elements are not computed accurately for the various picture elements but only to an approximation by interpolation. Computing time is, thus, substantially reduced with only a small increase in error.

REFERENCES:
patent: 3778614 (1973-12-01), Hounsfield
patent: 3784820 (1974-01-01), Miraldi
patent: 3961186 (1976-06-01), Leunbach
patent: 3971948 (1976-07-01), Pfeiler
patent: 4002911 (1977-01-01), Hounsfield
patent: 4010371 (1977-03-01), LeMay

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