公开(公告)号：US20220076452A1

公开(公告)日：2022-03-10

申请号：US17185937

申请日：2021-02-25

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06T7/80

摘要： Embodiments facilitate the calibration of cameras in a live action scene. In some embodiments, a system receives images of the live action scene from a plurality of cameras. The system further receives reference point data generated from a performance capture system, where the reference point data is based on at least three reference points, where the at least three reference points are attached to a linear form, and where distances between the at least three reference points are predetermined. The system further locates the at least three reference points in one or more images of the images. The system further computes one or more ratios of the distances between each adjacent pair of reference points of the at least three reference points in the one or more images. The system further determines a location and orientation of each camera based on the reference point data.

公开(公告)号：US20210272307A1

公开(公告)日：2021-09-02

申请号：US17107926

申请日：2020-11-30

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06T7/557 ,  G06F1/16 ,  G06T7/90

摘要： Installation of active markers light components to a wearable article of an object in a performance capture system is provided. The active marker light components are inserted into a receptacle to position the active marker light components onto the wearable article. The active marker light component and a strand to which the active marker light component is coupled, are inserted into the receptacle. The strand may be engaged into a channel in the receptacle. A top portion of the receptacle is introduced through an opening in the wearable article from the inside of the wearable article to the outside and a base portion catches an inner side of the wearable article. A fitting may be rotatably secured around the top portion at the outer side of the wearable article, to press against the base portion through the wearable article. The active markers light components may be removed from the wearable article by rotating the fitting in a counter-direction and guiding the top portion back through the opening.

公开(公告)号：US20220076451A1

公开(公告)日：2022-03-10

申请号：US17185935

申请日：2021-02-25

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06T7/80

摘要： Embodiments facilitate the calibration of cameras in a live action scene. In some embodiments, a system receives images of the live action scene from a plurality of cameras. The system further receives reference point data generated from a performance capture system, where the reference point data is based on a plurality of reference points coupled to a plurality of extensions coupled to a base, where the plurality of reference points are in a non-linear arrangement, where distances between references points are predetermined. The system further computes reference point data generated from a performance capture system and based on the distances. The system further computes a location and orientation of each camera in the live action scene based on the reference point data.

公开(公告)号：US20220067972A1

公开(公告)日：2022-03-03

申请号：US17378595

申请日：2021-07-16

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06T7/80 ,  G06T7/73 ,  H04N17/00

摘要： The present description relates relate to recalibration of a sensor device for performance capture, by detecting a miscalibration problem with sensor device and assessment of the problem. A recalibration system includes sensor devices initially calibrated at a recording site. A recording site change occurs and afterwards, a failure to match virtual rays projected from one sensor device with virtual rays projected from the active marker is detected. In response to determining the failure, the active marker is signaled to emit a unique display of light. The failure of the rays to match is assessed based on whether sensor devices capture the unique display of light. Three-dimensional (3-D) coordinates of an active marker is reconstructed from marker data of the calibrated sensor devices. A problematic sensor device is recalibrated based on the assessment, using the 3-D coordinates of the active marker from marker data of the remaining calibrated sensor devices, without stopping the recording.

公开(公告)号：US20210270924A1

公开(公告)日：2021-09-02

申请号：US17107920

申请日：2020-11-30

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G01S1/70 ,  H04N9/04 ,  G06T13/40

摘要： A sealed active marker apparatus of a performance capture system is described to provide protective housing for active marker light components coupled to a strand and attached via a receptacle, to an object, such as via a wearable article, in a live action scene. The receptacle includes a protrusion portion that permits at least one particular wavelength range of light emitted from the enclosed active marker light component, to diffuse in a manner that enables easy detection by a sensor device. A base portion interlocks with a bottom plate of the receptacle to secure the strand within one or more channels. A sealant material coating portions of the apparatus promotes an insulating environment for the active marker light component.

公开(公告)号：US11288496B2

公开(公告)日：2022-03-29

申请号：US17333883

申请日：2021-05-28

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06K9/00 ,  G06T7/593 ,  G06T7/20 ,  G06T7/70 ,  G06K9/46 ,  H04N5/232 ,  H04N5/235 ,  A61B90/00 ,  A61B5/11 ,  A61B5/00

摘要： The present description relates to light patterns used in a live action scene of a visual production to encode information associated with objects in the scene, such as movement and position of the objects. A data capture system includes active markers that emit light of a particular wavelength in predefined strobing patterns. In some implementations, the active markers are instructed to emit an assigned signature pattern of light through a signal controller sending signals to a control unit. Various components are synchronized such that pulsing of light corresponds to time slices and particular frames captured by the performance capture system. The data representing the pattern is embedded in illuminated and blank frames. Frames showing the light pattern are analyzed to extract information about the active markers, such as identification of the active markers and objects to which they are attached.

公开(公告)号：US20220076450A1

公开(公告)日：2022-03-10

申请号：US17185933

申请日：2021-02-25

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06T7/80

摘要： Embodiments facilitate the calibration of cameras in a live action scene. In some embodiments, a system receives images of the live action scene from a plurality of cameras. The system further receives reference point data generated from a performance capture system, where the reference point data is based on at least three reference points, where the at least three reference points are positioned within the live action scene, and where distances between the at least three reference points are predetermined. The system further determines a location and orientation of each camera based on the reference point data.

公开(公告)号：US11232595B1

公开(公告)日：2022-01-25

申请号：US17461379

申请日：2021-08-30

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06T7/80 ,  G06T7/73 ,  H04N5/225 ,  H04N17/00 ,  H04N5/247

摘要： Implementations facilitate the calibration of cameras in a live action scene. In some implementations, a system includes a base, where the base is configured to removably couple to a camera in the live action scene. The system further includes a plurality of extensions coupled to the base, where the plurality of extensions extends outwardly away from the base. The system further includes a plurality of reference points identifiable by a sensor, where the reference points are coupled to ends of corresponding extensions of the plurality of extensions, and where the plurality of extensions positions the plurality of reference points in a three-dimensional arrangement. Distances between pairs of reference points are based on one or more aspects of the extensions, and the distances between the pairs of reference points are used to compute reference point data generated from a performance capture system.

公开(公告)号：US20210295027A1

公开(公告)日：2021-09-23

申请号：US17333883

申请日：2021-05-28

申请人： Weta Digital Limited

发明人： Dejan Momcilovic ,  Jake Botting

IPC分类号： G06K9/00 ,  H04N5/235 ,  G06T7/20 ,  G06T7/70 ,  G06K9/46 ,  H04N5/232

摘要： The present description relates to light patterns used in a live action scene of a visual production to encode information associated with objects in the scene, such as movement and position of the objects. A data capture system includes active markers that emit light of a particular wavelength in predefined strobing patterns. In some implementations, the active markers are instructed to emit an assigned signature pattern of light through a signal controller sending signals to a control unit. Various components are synchronized such that pulsing of light corresponds to time slices and particular frames captured by the performance capture system. The data representing the pattern is embedded in illuminated and blank frames. Frames showing the light pattern are analyzed to extract information about the active markers, such as identification of the active markers and objects to which they are attached.

公开(公告)号：USD991056S1

公开(公告)日：2023-07-04

申请号：US29752630

申请日：2020-09-28

申请人： Weta Digital Limited

设计人： Dejan Momcilovich ,  Jake Botting

摘要： FIG. 1 is an exploded top view of a performance capture marker housing that features a first piece and a second piece;
FIG. 2 is a front view of the first piece in FIG. 1, shown separately for clarity of illustration;
FIG. 3 is a bottom view of the first piece in FIG. 2;
FIG. 4 is a front view of the first piece in FIG. 2;
FIG. 5 is a side view of the first piece in FIG. 2;
FIG. 6 is a top view of the second piece in FIG. 1, shown separately for clarity of illustration;
FIG. 7 is a bottom view of the second piece in FIG. 6;
FIG. 8 is a front view of the second piece in FIG. 6, the rear view of the second piece being a mirror image thereof;
FIG. 9 is a side view of the second piece in FIG. 6, the other side view of the second piece being a mirror image thereof;
FIG. 10 is a top perspective view of the performance capture marker housing in FIG. 1, shown in an engaged and unlocked configuration;
FIG. 11 is a top perspective view of the performance capture marker housing in FIG. 1, shown in an engaged and locked configuration;
FIG. 12 is a cross sectional view taken along the line A-A, in the direction of the arrows, of the top perspective view in FIG. 11;
FIG. 13 is a bottom perspective view of the performance capture marker housing in FIG. 11;
FIG. 14 is a top view of the performance capture marker housing in FIG. 11;
FIG. 15 is a bottom view of the performance capture marker housing in FIG. 11;
FIG. 16 is a front view of the performance capture marker housing in FIG. 11, the rear view being a mirror image thereof; and,
FIG. 17 is a side view of the performance capture marker housing in FIG. 11, the other side view being a mirror image thereof.
The broken lines (dash) illustrating portions of the performance capture marker housing, form no part of the claimed design.