System for image reconstruction
First Claim
1. A method for imaging, comprising:
- counting quanta of energy emitted into a range of angles from particles of an energy emitter distributed over a volume in a body, thereby generating a set of counts;
defining a probability distribution expression that specifies a local concentration of the particles of the energy emitter over the volume as a function of the set of counts, the function being defined in terms of respective coefficients of a plurality of different scales of the local concentration, comprising at least a first and a second scale;
specifying a dependence of the coefficients of the first scale on the coefficients of the second scale; and
computing the local concentration over the volume by applying the probability distribution expression to the set of counts subject to the specified dependence,the dependence being given by;
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Abstract
A method for imaging, including counting quanta of energy emitted into a range of angles from particles of an energy emitter distributed over a volume in a body, thereby generating a set of counts. The method further includes defining a probability distribution expression that specifies a local concentration of the particles of the energy emitter over the volume as a function of the set of counts, the function being defined in terms of respective coefficients of a plurality of different scales of the local concentration, including at least a first and a second scale. A dependence of the coefficients of the first scale on the coefficients of the second scale is specified, and the local concentration over the volume is computed by applying the probability distribution expression to the set of counts subject to the specified dependence.
12 Citations
23 Claims
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1. A method for imaging, comprising:
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counting quanta of energy emitted into a range of angles from particles of an energy emitter distributed over a volume in a body, thereby generating a set of counts; defining a probability distribution expression that specifies a local concentration of the particles of the energy emitter over the volume as a function of the set of counts, the function being defined in terms of respective coefficients of a plurality of different scales of the local concentration, comprising at least a first and a second scale; specifying a dependence of the coefficients of the first scale on the coefficients of the second scale; and computing the local concentration over the volume by applying the probability distribution expression to the set of counts subject to the specified dependence, the dependence being given by; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. Imaging apparatus, comprising:
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a camera which is arranged to count quanta of energy emitted into a range of angles from particles of an energy emitter distributed over a volume in a body, thereby generating a set of counts; and a processing unit which is configured to; define a probability distribution expression that specifies a local concentration of the particles of the energy emitter over the volume as a function of the set of counts, the function being defined in terms of respective coefficients of a plurality of different scales of the local concentration, comprising at least a first and a second scale, specify a dependence of the coefficients of the first scale on the coefficients of the second scale, and compute the local concentration over the volume by applying the probability distribution to the set of counts subject to the specified dependence, the dependence being given by; - View Dependent Claims (22)
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23. A computer software product stored on a non-transitory computer readable medium for imaging, comprising the computer-readable medium having computer program instructions recorded therein, which instructions, when read by a computer, cause the computer to:
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receive counts of quanta of energy emitted into a range of angles from particles of an energy emitter distributed over a volume in a body, thereby generating a set of counts, define a probability distribution expression that specifies a local concentration of the particles of the energy emitter over the volume as a function of the set of counts, the function being defined in terms of respective coefficients of a plurality of different scales of the local concentration, comprising at least a first and a second scale, specify a dependence of the coefficients of the first scale on the coefficients of the second scale, and compute the local concentration over the volume by applying the probability distribution expression to the set of counts subject to the specified dependence, the dependence being given by;
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Specification