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1. 发明授权

US11525789B2 Apparatus and method for performing a computed tomography scan of an object which has an elongate shape, in particular wooden boards 有权
公开(公告)号：US11525789B2
公开(公告)日：2022-12-13
申请号：US17176017
申请日：2021-02-15
申请人： MICROTEC S.R.L.
发明人： Enrico Ursella
IPC分类号： G01N23/04 , G06T7/00 , G01N23/046 , G01N33/46
摘要： Apparatus and method for performing computed tomography scans of elongate objects, wherein the object is irradiated with X-rays emitted by a plurality of X-ray emitters which are offset relative to a forward movement direction transversal to the main axis of the object, wherein a rotation device rotates each object about its own main axis of extension while the object is irradiated by one or more beams of X-rays, wherein electronic identifying means estimate the instantaneous position and orientation of the axial portions of the object which are irradiated during the rotation, and wherein an electronic processing and control unit is programmed for combining sets of radiographic data acquired for each axial portion of the object at different detecting moments during the rotation, for processing a three-dimensional tomography reconstruction of the object while taking into account corresponding information about the position and the orientation of each axial portion at each moment.

2. 发明授权

US11620742B2 Computer implemented methods for training or using a software infrastructure based on machine learning techniques 有权
公开(公告)号：US11620742B2
公开(公告)日：2023-04-04
申请号：US16928385
申请日：2020-07-14
申请人： MICROTEC S.R.L.
发明人： Enrico Ursella , Enrico Vicario , Federico Giudiceandrea
IPC分类号： G06T7/00 , G06N20/00 , G01N23/046
摘要： Computer implemented method for training a software infrastructure based on machine learning techniques and intended for analysis of data obtained from a three-dimensional tomographic inspection of objects of a predetermined type, such as logs, with the aim of determining information about internal characteristics of interest of the self-same objects, wherein, once a training set comprising a plurality of objects of the same predetermined type has been selected, for each object the software infrastructure is supplied with training input data and corresponding training output data, which are processed by the software infrastructure for setting internal processing parameters of the software infrastructure which correlate the training input data with the training output data; where the training input data comprise data obtained from a three-dimensional tomographic inspection of the object, and the training output data comprise information about internal characteristics of interest assessed at internal points of the object, and where the information about the internal characteristics of interest is at least partly assessed at real internal points of the object, previously made accessible by cutting or breaking the object.

3. 发明授权

US11428648B2 Method and apparatus for performing a tomographic examination of an object 有权
公开(公告)号：US11428648B2
公开(公告)日：2022-08-30
申请号：US17072982
申请日：2020-10-16
申请人： MICROTEC S.R.L.
发明人： Enrico Ursella , Federico Giudiceandrea
IPC分类号： G01N23/046 , G06T7/73 , G06T7/246 , G01N23/083 , G01N33/02 , G06T7/00 , G06T11/00
摘要： A method and a related apparatus for performing a tomographic examination of an object (2) which advances through an examination area (6), wherein the examination area (6) is irradiated with x-rays transversally to a motion trajectory of the object (2) and the residual intensity of the x-rays which have crossed the object (2) is repeatedly detected to obtain, for each detection, an electronic two-dimensional pixel map, the two-dimensional maps thus obtained being processed by a computer to obtain a three-dimensional tomographic reconstruction of the object (2); wherein, during the advancement, the object (2) is made or let rotate, at least partly uncontrolled, in such a way that the object (2) rotates around one or more rotation axes which are transversal both to the motion trajectory and to the propagation directions of the x-rays crossing it; and wherein a computer also determines the spatial position in which the object (2) is located relative to the one or more emitters (4) and/or the one or more detectors (5) at the instant when each two-dimensional map is detected, and factors this in the tomographic reconstruction.

4. 发明授权

US10914691B2 Method and apparatus for non-destructive inspection of fruits having an axis of rotational symmetry 有权
公开(公告)号：US10914691B2
公开(公告)日：2021-02-09
申请号：US16264162
申请日：2019-01-31
申请人： MICROTEC S.R.L.
发明人： Enrico Ursella , Giancarlo Zane , Marco Boschetti , Simone Faccini
IPC分类号： G06T7/11 , G01N23/083 , G01N23/18 , G01N23/04 , B07C5/34 , G06T7/00 , G01N33/02 , G06T7/68
摘要： This disclosure relates to a method for non-destructive inspection of a fruit (1) having an axis of rotational symmetry (10). The method comprises the step of positioning the fruit (1) in such a way that its axis of rotational symmetry (10) has an orientation that is substantially parallel to a predetermined plane (20) and the step of radiographing the fruit (1), where the direction of emission of X-rays is substantially perpendicular to said predetermined plane (20) and an X-ray image obtained (41) lies on said predetermined plane (20). The X-ray image obtained (41) is processed to calculate, at corresponding points of the X-ray image (41), respective values of attenuation of the X-ray signal through the fruit (1). The X-ray image (41) is divided into a plurality of sections (415) which are perpendicular to the projection (410) of the axis of rotational symmetry (10) on the predetermined plane (20). Each section (415) is the projection of a corresponding slice of the fruit (1) that is substantially perpendicular to the axis of rotational symmetry (10). For each section (415), the deviation between a signal attenuation trend obtained from processing the X-ray image and a reference trend, or the deviation between a trend of a local coefficient of average attenuation obtained from processing the X-ray image and a trend with constant value, is examined in order to identify any anomalies, discontinuities or variations which are indicative of respective non-uniformities in the corresponding slice of fruit. This disclosure also relates to an apparatus (9) for carrying out a non-destructive inspection of a fruit (1) having an axis of rotational symmetry (10), said apparatus being configured for implementing the method according to the disclosure.

5. 发明授权

US10739329B2 Method and apparatus for non-destructive inspection of a log to identify inner zones that are free of bluestain 有权
公开(公告)号：US10739329B2
公开(公告)日：2020-08-11
申请号：US15953704
申请日：2018-04-16
申请人： MICROTEC S.R.L.
发明人： Enrico Ursella , Enrico Vicario
IPC分类号： G01N33/46 , G01N23/046
摘要： This invention relates to a method for non-destructive inspection of a log (1) to identify inner zones of sapwood (14) of the log (1) that have not been attacked by fungi that cause bluestain in the wood. The method comprises a first step of carrying out a tomographic scan of the log (1) to be inspected using X-ray beams that pass through the log (1) and a second step of obtaining a three-dimensional representation of the log (1) that is representative of the local moisture content of the log, the local moisture content being correlated with attenuation of the X-ray beams through the log. The method comprises the step of processing the three-dimensional representation of the log (1) to identify inner regions (145) of the log (1), in which the local moisture content is greater than or equal to a moisture threshold value for a spatial extent greater than an extent threshold. The moisture threshold value corresponds, for trees of the same species as the log (1), to a sapwood (14) with local moisture content such that it excludes the growth of fungi that cause bluestain in the wood. Each inner region (145) identified in this way is classed as a sapwood (14) zone free of bluestain. This invention also relates to a procedure for obtaining one or more wooden products from a log (1), as well as an apparatus for carrying out a non-destructive inspection of a log (1).

6. 发明授权

US11226296B2 Tunnel computerised tomographic scanner and method for acquiring images from a scintillator of a tunnel computerised tomography scanner 有权
公开(公告)号：US11226296B2
公开(公告)日：2022-01-18
申请号：US17259869
申请日：2020-01-31
申请人： MICROTEC S.R.L.
发明人： Marco Boschetti , Enrico Ursella
IPC分类号： G01N23/046
摘要： A tunnel computerised tomographic scanner comprising a rotor (3), an X-ray emitter (7) mounted on the rotor (3), an X-ray detector (8) mounted on the rotor (3), on the opposite side of a detecting zone (4), the X-ray detector (8) comprising a scintillator (9) which has at least one emission face (10) from which the scintillator (9) emits light in the visible spectrum when it is struck by X-rays, and a plurality of video cameras (12) which are positioned in such a way that each of them frames at least one portion of the scintillator (9), for acquiring one after another second images, in the visible spectrum, of the respective portion of the scintillator (9), wherein, according to the method, at least two separate video cameras (12) substantially frame each zone of the emission face (10), and an electronic processing unit is programmed to combine all of the second images obtained by the video cameras (12) and to obtain a first image of the emission face (10), to be used for the tomographic reconstruction of an object (6) which is placed in the detecting zone (4).

7. 发明授权

US10987822B2 Method for establishing a posteriori a match between a piece of wood and a log from which the piece of wood has been obtained 有权
公开(公告)号：US10987822B2
公开(公告)日：2021-04-27
申请号：US16297107
申请日：2019-03-08
申请人： MICROTEC S.R.L.
发明人： Enrico Ursella , Enrico Vicario , Martin Bacher
IPC分类号： B27B1/00 , G06T7/60 , G06K9/62 , G06T7/70 , G06T7/00 , G01N33/46 , G01N23/046 , G01N29/06 , G01N24/08 , B27D1/00 , G06F16/23
摘要： A method for establishing a posteriori a match between a piece of wood and a log from which the piece of wood has been obtained, comprising the following operating steps of performing a tomographic scan of the wooden log, of calculating or selecting a log cutting pattern, of defining, starting with the tomographic information available, one or more virtual individualising characteristics which are linked to the distribution and/or size of physical characteristics of the log inside and/or on the surface of the self-same virtual piece of wood, of saving them in a database, together with information about the identity of the log, of dividing the log into real pieces of wood according to the cutting pattern, of acquiring real information about the distribution and/or size of physical characteristics of the log inside and/or on the surface of a real piece of wood and of defining corresponding real individualising characteristics to be compared with virtual individualising characteristics saved and of identifying an origin of the real piece of wood based on the information about the identity of the log which is saved together with the virtual individualising characteristics which match the real individualising characteristics.

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