公开(公告)号：AU2013254437A1

公开(公告)日：2014-10-30

申请号：AU2013254437

申请日：2013-04-26

Applicant: BAE SYSTEMS PLC

Inventor： BARR JORDI MCGREGOR ,  THUEUX YOANN PAUL GEORGES ,  GOODALL MARK ROBERT

IPC: G06N7/00 ,  G08B13/196

Abstract: Methods and apparatus for determining whether a provided object track (24) is abnormal, an object track (24) being a set of values of a physical property of an object (2)measured over a period of time, the method comprising: providing a model comprising one or more functions (26), each function (26) being representative of an object track (24) that is defined to be normal;assigning the provided object track (24) to a function (26); and comparing the provided object track (24) to the assigned function (26) to determine whether that object track (24) is abnormal. Providing the model comprises: for each of a plurality of objects (2), determining an object track (24),wherein the determined object tracks (24) are defined as normal object tracks (24); and using the determined tracks (24), performing a Gaussian Processes based Variational Bayes Expectation Maximisation process to learn the one or more functions (26).

公开(公告)号：AU2015359095A1

公开(公告)日：2017-07-13

申请号：AU2015359095

申请日：2015-02-04

Applicant: BAE SYSTEMS PLC

Inventor： REVELL JAMES DUNCAN ,  GOODALL MARK ROBERT ,  CROSS GARY MARTIN

IPC: G02B13/06 ,  G02B27/10 ,  G02B27/12

Abstract: Optical apparatus for use with an image capture device having an optical input and an image sensor (22) defining a principal optical axis therebetween, the apparatus being configured to provide, via said input, a plurality of substantially parallel, spaced-apart optical beams to said image sensor (22), and comprising: -a first optical unit (26) comprising a plurality of optical elements (10, 12, 14, 16, 18, 20), at least a first one of said optical elements being a first refractive element (12, 14, 18, 20) for refracting an optical beam incident thereon through substantially 90°; and -a plurality of focusing lenses (lens0, lens1, lens2, lens3, lens4, lens5), each focusing lens being associated with a respective optical element and being configured to direct a respective incident optical beam thereon; wherein the focusing lens associated with said refractive element is arranged and configured to direct an incident optical beam thereon at substantially 90° to said principal optical axis, and the refractive element is arranged and configured such that,in use, the resultant refracted optical beam is substantially parallel to said principal optical axis as it reaches said image sensor (24).

公开(公告)号：AU2015334707A1

公开(公告)日：2017-04-27

申请号：AU2015334707

申请日：2015-01-30

Applicant: BAE SYSTEMS PLC

Inventor： REVELL JAMES DUNCAN ,  GOODALL MARK ROBERT ,  CROSS GARY MARTIN

IPC: G06T7/00 ,  G06T7/20

Abstract: An optical inertial measurement method for determining a 6D0F pose in respect of a moving platform, the method comprising providing, in respect of said moving platform, a camera unit (10) comprised of at least three monocular cameras (14, 16, 18) connected rigidly together and configured such that their fields of view do not overlap and cover motion of said platform in each of three principal, substantially orthogonal axes; receiving video outputs from each of said cameras; determining individual point correspondences from said video outputs, and estimating therefrom, for each camera, a transform that includes translation values representative of direction of translation in the x and y axes, rotation about the optical axis and a scale factor, each transform being expressed with respect to a local 3D coordinate system associated with a respective camera; and mapping said translation values in the x and y axes to a global 3D coordinate system, having its origin defined by a point between said cameras, and multiplying said translation values by a respective scale factor so as to determine a 6DOF pose in respect of said camera unit. An optical inertial measurement system is also disclosed.

公开(公告)号：GB2525304A

公开(公告)日：2015-10-21

申请号：GB201503919

申请日：2015-03-09

Applicant: BAE SYSTEMS PLC

Inventor： WRIGHT JULIAN DAVID ,  GOODALL MARK ROBERT ,  COLOSIMO NICHOLAS GIACOMO ROBERT ,  WHITEFORD CHRISTOPHER JAMES ,  PAGE HEATHER JEAN

IPC: G06T19/00 ,  G02B27/01 ,  G06F3/01 ,  H04N5/265 ,  H04N13/04

Abstract: Mixed reality system comprising: a headset with a visor placed over the users eyes; image capture means (eg. camera) that captures images of the real world environment surrounding a user; a processor configured to: receive data from multiple sources; blend the data and selected portions or objects from the real world images into a 3D virtual environment; and display the resulting augmented reality on the headset screen. Cameras may be mounted on the head-mounted display (HMD) aligned with operators eyes. Imagers may be spatially seperated enabling creation of a stereoscopic depth map to produce a three dimensional picture. Displayed data may be manipulated using predefined hand gestures that are stored in a database and associated with control actions. A control signal may be generated by comparing or matching images of users hand gestures against the database. Inanimate items, features, regions or people may be specified for inclusion in the mixed reality. Display configuration settings, such as the nature, location and orientation of displayed information, may be stored and transferred from one real environment to a different real environment.

公开(公告)号：AU2015334707B2

公开(公告)日：2019-09-12

申请号：AU2015334707

申请日：2015-01-30

Applicant: BAE SYSTEMS PLC

Inventor： REVELL JAMES DUNCAN ,  GOODALL MARK ROBERT ,  CROSS GARY MARTIN

IPC: G06T7/00 ,  G06T7/20

Abstract: An optical inertial measurement method for determining a 6D0F pose in respect of a moving platform, the method comprising providing, in respect of said moving platform, a camera unit (10) comprised of at least three monocular cameras (14, 16, 18) connected rigidly together and configured such that their fields of view do not overlap and cover motion of said platform in each of three principal, substantially orthogonal axes; receiving video outputs from each of said cameras; determining individual point correspondences from said video outputs, and estimating therefrom, for each camera, a transform that includes translation values representative of direction of translation in the x and y axes, rotation about the optical axis and a scale factor, each transform being expressed with respect to a local 3D coordinate system associated with a respective camera; and mapping said translation values in the x and y axes to a global 3D coordinate system, having its origin defined by a point between said cameras, and multiplying said translation values by a respective scale factor so as to determine a 6DOF pose in respect of said camera unit. An optical inertial measurement system is also disclosed.

公开(公告)号：CA2964525A1

公开(公告)日：2016-04-28

申请号：CA2964525

申请日：2015-01-30

Applicant: BAE SYSTEMS PLC

Inventor： REVELL JAMES DUNCAN ,  GOODALL MARK ROBERT ,  CROSS GARY MARTIN

IPC: G01C21/00 ,  G06T7/70

Abstract: An optical inertial measurement method for determining a 6D0F pose in respect of a moving platform, the method comprising providing, in respect of said moving platform, a camera unit (10) comprised of at least three monocular cameras (14, 16, 18) connected rigidly together and configured such that their fields of view do not overlap and cover motion of said platform in each of three principal, substantially orthogonal axes; receiving video outputs from each of said cameras; determining individual point correspondences from said video outputs, and estimating therefrom, for each camera, a transform that includes translation values representative of direction of translation in the x and y axes, rotation about the optical axis and a scale factor, each transform being expressed with respect to a local 3D coordinate system associated with a respective camera; and mapping said translation values in the x and y axes to a global 3D coordinate system, having its origin defined by a point between said cameras, and multiplying said translation values by a respective scale factor so as to determine a 6DOF pose in respect of said camera unit. An optical inertial measurement system is also disclosed.

公开(公告)号：GB2501542A

公开(公告)日：2013-10-30

申请号：GB201207704

申请日：2012-04-28

Applicant: BAE SYSTEMS PLC

Inventor： BARR JORDI MCGREGOR ,  THUEUX YOANN PAUL GEORGES ,  GOODALL MARK ROBERT

IPC: G06N5/04 ,  G06K9/00 ,  G06T7/20 ,  G08B13/196

Abstract: Methods and apparatus for determining whether a provided object track is abnormal, recognising suspicious behaviour, an object track being a set of values of a physical property of an object measured over a period of time, the method comprising: providing a model comprising one or more functions, each function being representative of an object track that is defined to be normal; assigning the provided object track to a function; and comparing the provided object track to the assigned function to determine whether that object track is abnormal. Providing the model comprises: for each of a plurality of objects, determining an object track, wherein the determined object tracks are defined as normal object tracks; and using the determined tracks, performing a Gaussian Processes based Variational Bayes Expectation Maximisation process to learn the one or more functions.