Generating material hardening effect data
AssigneeShenyang Neusoft Medical Systems Co., Ltd.
InventorsShanshan Lou, Gang Fang, Jiangwei Zhao
Life of this patent
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Abstract
A method for generating material hardening effect data is provided. Actual X-ray attenuation values of a universal phantom corresponding to different angles at each of channels may be obtained. Equivalent filtration thicknesses corresponding to each of the channels may be determined according to theoretical X-ray attenuation values and the actual X-ray attenuation values corresponding to different angles at each of the channels. Hardening effect data corresponding to a material may be generated according to a predetermined length of the material, a number of sampling points and the equivalent filtration thicknesses corresponding to each of the channels.
Claims12
A method for generating material hardening effect data, comprises:
- obtaining actual X-ray attenuation values of a universal phantom corresponding to different angles at each of channels;
- according to theoretical X-ray attenuation values and the actual X-ray attenuation values corresponding to different angles at each of the channels, determining equivalent filtration thicknesses corresponding to each of the channels in such a way that minimizes errors between the theoretical X-ray attenuation values and the actual X-ray attenuation values corresponding to different angles at each of the channels;
- and
- according to a predetermined length of a material, a number of sampling points and the equivalent filtration thicknesses corresponding to each of the channels, generating hardening effect data corresponding to the material.
A device for generating material hardening effect data, comprises:
- a processor which invokes machine readable instructions corresponding to a control logic for generating material hardening effect data stored on a non-transitory storage medium and executes the machine readable instructions to:
- obtain actual X-ray attenuation values of a universal phantom corresponding to different angles at each of channels;
- according to theoretical X-ray attenuation values and the actual X-ray attenuation values corresponding to different angles at each of the channels, determine equivalent filtration thicknesses corresponding to each of the channels in such a way that minimizes errors between the theoretical X-ray attenuation values and the actual X-ray attenuation values corresponding to different angles at each of the channels;
- and
- according to a predetermined length of a material, a number of sampling points and the equivalent filtration thicknesses corresponding to each of the channels, generate hardening effect data corresponding to the material.
Dependencies are inferred from the claim text.