Abstract: The present invention refers to a process for the asymmetric synthesis of isopiperitenol and successor compounds.

Abstract: A target detection method and apparatus, a target detection device and a storage medium. The target detection method comprises: acquiring n types of detection frames which are determined by n different target detectors and which are related to a positioning target, wherein the n different target detectors may extract n different types of image features from the same image, and n is a positive integer equal to or greater than 2; obtaining an integrated detection frame on the basis of the n types of detection frames; each target detector extracting image features from an input image on the basis of the integrated detection frame to obtain n types of image features; performing image feature optimization on the basis of the n types of image features to obtain optimized image features; and obtaining an optimized detection frame according to the optimized image features so as to detect a target.

Abstract: A target detection method and apparatus, a target detection device and a storage medium. The target detection method comprises: acquiring n types of detection frames which are determined by n different target detectors and which are related to a positioning target, wherein the n different target detectors may extract n different types of image features from the same image, and n is a positive integer equal to or greater than 2; obtaining an integrated detection frame on the basis of the n types of detection frames; each target detector extracting image features from an input image on the basis of the integrated detection frame to obtain n types of image features; performing image feature optimization on the basis of the n types of image features to obtain optimized image features; and obtaining an optimized detection frame according to the optimized image features so as to detect a target.

Abstract: A method of determining the degree of uptake of a PET maker in an individual candidate PET scan, the method including the steps of: (a) calculating a series of representative matched controlled PET and MRI templates for a series of controlled sample scans of individuals; (b) computing a series of brain surfaces from the matched templates; (c) aligning the individual candidate PET scan with the candidate templates; (d) aligning the candidate PET images with the series of brain surfaces; (e) selecting a predetermined (M) best candidate templates for each surface location based on a similarity measure between the candidate PET values and the corresponding controlled PET scans; (f) computing M weights for each surface location, utilizing a corresponding MRI tissue map; (g) utilizing the M weights to combine a corresponding M template tissue indicators from corresponding MRI templates into an average brain surface indicator.

Abstract: A method of determining the degree of uptake of a PET maker in an individual candidate PET scan, the method including the steps of: (a) calculating a series of representative matched controlled PET and MRI templates for a series of controlled sample scans of individuals; (b) computing a series of brain surfaces from the matched templates; (c) aligning the individual candidate PET scan with the candidate templates; (d) aligning the candidate PET images with the series of brain surfaces; (e) selecting a predetermined (M) best candidate templates for each surface location based on a similarity measure between the candidate PET values and the corresponding controlled PET scans; (f) computing M weights for each surface location, utilizing a corresponding MRI tissue map; (g) utilizing the M weights to combine a corresponding M template tissue indicators from corresponding MRI templates into an average brain surface indicator.

Abstract: A method of polygonizing an object calculates indicators that points within a set (Q) of points within three space representing the object likely lie near a surface discontinuity of the object. A global mesh is formed around a point that likely does not lie near a surface discontinuity (i.e. a reliable point). Local meshes are formed about reliable points on the frontier of this global mesh. Each local mesh is combined with the global mesh, thereby adding to the global mesh and advancing the frontier. Once a local mesh has been formed about each reliable point on the frontier and added to the global mesh, a local mesh may be formed about a point on the frontier that is more likely to lie near a surface discontinuity. The formation of local meshes can be repeated until no frontiers are left, or until all points have been added to the global mesh.

Abstract: A method of polygonizing an object calculates indicators that points within a set (Q) of points within three space representing the object likely lie near a surface discontinuity of the object. A global mesh is formed around a point that likely does not lie near a surface discontinuity (i.e. a reliable point). Local meshes are formed about reliable points on the frontier of this global mesh. Each local mesh is combined with the global mesh, thereby adding to the global mesh and advancing the frontier. Once a local mesh has been formed about each reliable point on the frontier and added to the global mesh, a local mesh may be formed about a point on the frontier that is more likely to lie near a surface discontinuity. The formation of local meshes can be repeated until no frontiers are left, or until all points have been added to the global mesh.