151 results about "Multiple markers" patented technology

Examples of the present disclosure relate to a computer-implemented method, an apparatus, and a computer program for extrinsic calibration of one or more cameras with respect to a reference coordinate system, and to various methods, apparatuses, and computer programs for using information on a pose of a reference plane being determined as part of the extrinsic calibration. The computer-implemented method for extrinsic calibration of one or more cameras with respect to a reference coordinate system comprises obtaining one or more images from one or more cameras, with each camera having a field of view, wherein each image shows an observation of at least one marker of a plurality of markers, wherein the plurality of markers are co-planar with respect to a reference plane, estimating, for the one or more cameras, a transformation between a respective camera coordinate system and the reference coordinate system based on an estimated pose of the at least one marker observed in the field of view of the camera relative to the camera coordinate system, estimating a pose of the reference plane with respect to the respective one or more camera coordinate systems based on a pre-defined or estimated pose of the reference plane with respect to the reference coordinate system and based on the estimated transformations between the one or more camera coordinate systems and the reference coordinate system, estimating planar poses of the plurality of markers with respect to the reference plane, and simultaneously adjusting the planar poses of the plurality of markers and the pose of the reference plane with respect to the respective one or more camera coordinate systems by iteratively reducing an error between a reprojection of the plurality of markers into the respective one or more camera coordinate systems and the position of the respective markers in the images.

A method for preparing data for identifying analytes in a sample, in which in an experiment one or more analytes are colored with markers in multiple coloring rounds, the markers in each case being specific for a certain set of analytes, detecting the multiple markers using a camera, which for each coloring round generates at least one image containing multiple pixels and color values assigned thereto, the image including colored signals and uncolored signals, wherein a colored signal is a pixel having a color value that originates from a marker, and an uncolored signal is a pixel having a color value that is not based on a marker, and storing the color information of the particular coloring rounds for evaluating the color information.

The invention relates to a microfluidic device (1) for automatic microscopic imaging of bioorganisms, wherein the device (1) comprises a plurality of chambers (2) configured to receive individual bioorganisms, wherein the microfluidic device (1) comprises an alignment portion (3) arranged at a predetermined position and orientation with respect to the chambers (2), wherein the alignment portion (3) comprises a plurality of markers arranged in a pattern (5), wherein the markers (4) of the pattern (5) are arranged with respect to a central point (6) of the pattern (5) such that for any position of a field of view comprising only a fraction of the pattern (5), an automatic centering procedure of the field of view toward or to the central point (6) of the pattern (5) is derivable. The invention further relates to microscope systems for automatic microscopic imaging of bioorganisms, a method for automatized microscopic imaging of bioorganisms using a microscope system, a computer program as well as a method for manufacturing the microfluidic device (1) for automatic microscopic imaging of bioorganisms.

This application belongs to the field of computer vision and optical measurement technology, specifically disclosing a point cloud stitching method and apparatus based on monocular pose prior marker matching. The method includes: calculating the pose of multiple markers extracted from left and right camera images, determining the normal vector and three-dimensional coordinates of each marker's circular cross-section in its respective camera coordinate system; transforming the three-dimensional coordinates and corresponding normal vectors of each marker in either the left or right camera image to the other camera coordinate system for marker point registration between the left and right camera images; the circular cross-section is a circular cross-section in three-dimensional space with the origin of the camera coordinate system as its vertex, passing through the elliptical curve where the marker is located; and stitching the three-dimensional point cloud of markers based on the marker point registration results of the left and right camera images. This application can significantly improve the accuracy of binocular stereo marker matching and the system's anti-interference capability in complex industrial scenarios.

The present invention provides a method of setting an alignment mark and a processing apparatus that automatically adjusts the range of a designated mark to set an alignment mark. The method of setting an alignment mark has the following steps: a photographing step of photographing one or more marks formed on the front side of a wafer; an information acquisition step of acquiring information on the respective circumscribed rectangles of the one or more marks photographed; a frame line adjustment step of moving the center of the circumscribed rectangle of one or more marks as a whole to the center of a quadrangular frame line, and automatically adjusting the position and size of the frame line with respect to the circumscribed rectangle in such a manner that the circumscribed rectangle is accommodated within the frame line and the interval between the circumscribed rectangle and the frame line is adjusted to a predetermined distance, according to whether one or more marks have been designated; and a registration step of registering the region inside the frame line whose size has been adjusted, which contains one or more marks, as an alignment mark in the processing apparatus.

An autonomous robot localization system for managing a plurality of autonomous robots is disclosed. The autonomous robot localization system includes a plurality of rail paths including a plurality of markers, a plurality of autonomous robots, and a system controller. The plurality of rail paths is used for guiding the plurality of autonomous robots. The plurality of autonomous robots include a plurality of readers, and a plurality of robot controllers. The plurality of readers include a plurality of sensors The plurality of robot controllers generate a plurality of marker patterns for corresponding marker based on assigned presence and absence status of the plurality of marker bits. The system controller manages movements of the plurality of autonomous robots based on a plurality of commands sent to the plurality of robot controllers.

Described herein are methods and systems for training image to image translation machine-learning models, wherein the image to image translation machine-learning models are trained using unpaired images. The trained image to image translation machine-learning models can be used to digitally identify markers of a fluorescent image depicting a plurality of markers in a single color channel from a single fluorophore and / or enhance a fluorescence image.

are disclosed herein. One embodiment of a virtual assistant enhancement system includes a plurality of markers installed in a vehicle in a corresponding plurality of different locations. The system activates, via a generative artificial intelligence (AI)-based virtual assistant of the vehicle, one or more of the plurality of electronic markers. The system also refers to the one or more activated electronic markers in instructions communicated to a user by the generative AI-based virtual assistant to assist the user in performing a task pertaining to the vehicle.

An anomaly detection system, an anomaly detection method, an electronic device and a storage medium are provided, which relates to the field of artificial intelligence. The anomaly detection system includes a plurality of markers. The plurality of markers are different from each other and correspond to different anomaly detection operations. A log line of a target system may be detected from different dimensions by using the plurality of markers, and marker tokens generated by different markers are obtained. In addition, the anomaly detection system further includes a model marker. The model marker may combine the marker tokens respectively generated by each marker into a token sequence and perform anomaly detection on the token sequence by using a pre-trained neural network model to obtain an overall anomaly score of the target system within a preset time period.

This application provides a method, apparatus, device, and computer-readable storage medium for displaying media content. The method includes: displaying media content and a browsing progress bar for the media content in a content display interface of the currently logged-in account; displaying the browsing progress of the media content in the browsing progress bar, and displaying multiple markers that correspond one-to-one with content segments in the media content; wherein the content segments are matched with the interest characteristics of the user corresponding to the currently logged-in account, and are obtained by filtering target content in the media content; during the display of media content corresponding to the browsing progress, when a trigger operation is received for a target marker in the browsing progress bar, the displayed content is redirected to the content segment corresponding to the target marker. This application enables rapid redirection to content segments of interest to the user, improving human-computer interaction efficiency.

Systems and methods for determining a head pose of a user are described. Images captured by a head-mounted camera worn by the user are received, the images comprising captured markers, wherein each captured marker is one of a plurality of markers on a surface that are in the FOV of the head-mounted camera. Stored markers having a predetermined orientation and corresponding to each captured marker are identified from a database, the stored markers comprising coordinates for its corresponding surface marker. An orientation of the captured marker relative to its corresponding stored marker is calculated and the stored marker is obtained. Based on the stored marker and the orientation, an absolute pose of each marker is determined. Based on the absolute pose of each marker, the head pose of the user relative to the surface is calculated.

The application discloses a method for constructing a multiplex visual nucleic acid detection system, which comprises the following steps: S1, selecting specific conservative gene sequences of multiple target detection objects; S2, designing specific LAMP primers according to the specific conservative gene sequences of the multiple target detection objects selected in S1; S3, marking the specific loop primers designed in S2 and designing specific assimilation probes; S4, placing the primers, the marked primers, the assimilation probes and multiple nucleic acid templates formed in S2 and S3 into the same system for LAMP amplification to form amplification products containing multiple markers; S5, placing the amplification products containing multiple markers in S4 into a binding pad of a detection strip; and S6, under the action of chromatography, the amplification product-marked colloidal gold complex is captured by corresponding antibodies through a detection belt to realize color development. The application realizes double color development by using a visual LFD detection system, namely, UU and MH use different color development systems respectively, so that UU and MH can be rapidly and simply detected.

Devices and methods for detecting and decoding a marking are disclosed herein. The method captures, using a device and a current focus setting, a current image of an area containing one or more markings. The method determines a first distance between the device and one or more markings present in the current image, based on the current focus setting during image capture. Using a trained model, the method detects the one or more markings present in the current image and determines, for a current marking located beneath the one or more markings, a second distance between the device and the current marking, based on a known size of the current marking and / or a feature of the current marking.The procedure determines whether the current marking is in focus, based on the first distance, the second distance and at least one attribute of the device.

Apparatus, systems, and methods are provided for localizing lesions within a patient's body, e.g., within a breast. The system may include one or more markers implantable within or around the target tissue region, and a probe for transmitting and receiving electromagnetic signals to detect the one or more markers. During use, the marker(s) are into a target tissue region, and the probe is placed against the patient's skin to detect and localize the marker(s). A tissue specimen, including the lesion and the marker(s), is then removed from the target tissue region based at least in part on the localization information from the probe.

The invention relates to an apparatus for automatically bending workpieces (10), comprising a storage device (2) for workpieces (10), a robot device (3) for handling workpieces (10), and a bending machine (5) for deforming at least some of the workpieces (10) handled by the robot device (3) via a bending process, the apparatus (1) further having an image capturing device (7) for capturing image data (ID) about workpieces (10) to be handled in the storage device (2) and a control device (6) for controlling the robot device (3) using the image data (ID). The image capturing device (7) can be moved into different positions (CP1, CP2) via an actuator system (8) in order to capture image data (ID) from different storage sections (201, 202, 203, 204) of the storage device (2) associated with the respective positions (CP1, CP2), wherein a plurality of markers (M1, M2,..., M10) are provided on the storage device (2), the positions (PO1, PO2,..., PO10) of which relative to a reference coordinate system (RC) are stored in the control device (6), wherein the respective positions (CP1, CP2) of the image capturing device (7) in the associated storage sections (201, 202, 203, 204) contain at least two markers (M1, M2,..., M10), and the control device (6) is configured to perform an evaluation of the image data (ID) of the associated storage sections (201, 202, 203, 204), wherein by means of the stored positions (PO1, PO2,..., PO10) of the markers (M1, M2,..., M10) in the associated storage sections (201, 202, 203, 204), a positioning (CL) of the image capturing device (7) relative to the reference coordinate system (RC) and / or a positioning (WL) of the workpieces (10) to be handled relative to the reference coordinate system (RC) is automatically determined.

The invention relates to the technical field of medical image processing and surgical navigation, and discloses a polyhedral tool registration method and device, equipment and a medium. The method comprises the steps that a polyhedral tool is designed, and pits with plane markers are formed in a plurality of planes of the tool; manufacturing a standard product and at least one replica; acquiring the three-dimensional coordinates of the standard marker in the unified coordinate system by using high-precision equipment to form a standard point set; the optical navigation system collects actual coordinates of replica markers to form an actual point set; screening an effective point set according to the included angle between the mark point corresponding vector and the Z-axis vector of the optical navigation coordinate system; and carrying out calibration and iterative optimization by a singular value decomposition algorithm to unify the coordinates of the marker to a standard coordinate system. According to the invention, the vertical octahedral asymmetric structure and the multi-pit position marker on each surface are used for improving the precision and shielding resistance, the batch consistency is ensured by means of a standard substance and an algorithm, and the marker is easy to manufacture and rapid to register and meets clinical requirements.

A method for preparing data for identifying analytes by coloring one or more analytes with markers in multiple coloring rounds, the markers in each case being specific for a certain set of analytes, detecting multiple markers using a camera, which for each coloring round generates at least one image that includes multiple pixels to which a color value is assigned in each case as color information, and includes colored signals and uncolored signals, wherein a colored signal is a pixel containing color information of a marker, and an uncolored signal is a pixel containing color information that is not based on a marker. A data point in each case includes one or more contiguous pixels in the images of the multiple coloring rounds that are assigned to the same location in a sample.

This disclosure relates to the field of positioning technology, and discloses a method, computer device, computer-readable storage medium, and surgical robot system for determining the pose of an object. The method for determining the pose of an object includes: acquiring a positioning image; identifying multiple markers located on the object in the positioning image, the multiple markers including multiple pose markers for identifying pose and at least one composite marker for identifying pose and angle; and determining the pose of the object relative to a reference coordinate system based on at least one composite marker and the multiple pose markers.

The utility model relates to a multifunctional skin marker for ophthalmology department, which relates to the technical field of medical instruments and is characterized in that a plurality of marker mounting grooves are arranged on a combined support, so that a plurality of markers are integrated in the combined support, and the markers are convenient to use and store; through clamping connection of the fixing part and the limiting column, stable connection of the upper shell and the lower shell is achieved, the marker is provided with the spring, the marker can be evenly stressed during stamping, and traces of the marker are clearer and more complete; the oil filling pipe and the ink storage box which are arranged in the lower shell are communicated with the photosensitive pad, extra dipping in inkpad is not needed, the ink leakage phenomenon is avoided, the stamping action can be completed by pressing down the upper shell, operation is easy and fast, and the working efficiency can be improved.

The present disclosure provides an object shape and texture perception method for underwater robots and a corresponding device. The underwater tactile sensor comprises: a contact module for contacting the surface of an underwater object to deform, the deformation causing displacement of a multi-color marker point field on the upper surface of the contact module; a binocular camera module for capturing the displacement of the multi-color marker point field to obtain a tactile image, wherein the tactile image comprises a left-eye tactile image and a right-eye tactile image; a waterproof module for realizing the waterproof function of the underwater tactile sensor; wherein the multi-color marker point field comprises: a plurality of marker point groups arranged in sequence, each marker point group comprising j marker points of different colors, the spatial order of the j color marker points in each marker point group being fixed, and j being an integer greater than 1.

The embodiment of the invention provides a natural resource detection marking device, and relates to the technical field of natural resource detection. The natural resource detecting and marking device comprises a label feeding component, a driving transmission and distribution assembly, a middle pushing component, a deploying bulldozing assembly and an adjusting transmission and distribution assembly, the label feeding component is used for inserting and matching of marking points, a top shell is arranged at the top of the label feeding component, and the label feeding component and the top shell are matched with each other; a first toothed plate is arranged on one side of the top of an inner cavity of the label feeding component. The driving transmission assembly serves as a power source to provide power for the middle pushing component, the deploying bulldozing assembly and the adjusting transmission assembly, the adjusting transmission assembly is used for flexibly assembling the multiple marking rod bodies, moving force can be applied to the middle pushing component, and the middle pushing component is used for moving the marking rod bodies downwards to be inserted into soil for marking operation. And the deploying bulldozing assembly can be driven to carry out movable drilling operation in advance, the marking rod body is assisted to be marked into the soil, and the efficiency of calibrating the soil detection point is improved.

Use of one or more markers to identify and sort cells that have been engineered to comprise a synthetic chromosome encoding the marker(s), with said cells expressing said marker(s) encoded on the synthetic chromosome. The marker is typically but not limited to a cluster of differentiation (CD), wherein the CD has been truncated or otherwise modified so that the biological function of the CD is lost or remarkably reduced. The modified CD is typically used to sort cells to obtain a desired population of cells containing the synthetic chromosome, or i) to ensure that a cell population administered to a subject, e.g., suffering from cancer, reaches the target tissue, ii) to ensure that a cell population administered to a subject, e.g., suffering from cancer, stays at the desired site within the body of the subject during a treatment regimen, iii) to make it possible to turn on a kill switch comprised in the synthetic chromosomes of the cells of the cell population if the cell population is present at undesired sites in the body, or iv) to use as a diagnostic tool.

A video processing system including: at least one camera configured to obtain video data; a display interface; and a video analyzer including a memory storing instructions, and a processor configured to execute the instructions to: receive a video data from at least one camera; identify a plurality of video frames in which events occur from the received video data; generate a plurality of thumbnail images respectively representing the plurality of video frames; display a timeline interface indicating respective times of the events via a plurality of markers; and provide the plurality of thumbnail images in a thumbnail area adjacent to the timeline interface respectively corresponding with the plurality of markers, where left ends of the plurality of markers indicate start times of the events, and left ends of the plurality of thumbnail images coincide with the left ends of the plurality of markers.

An optical tracking system comprising a main camera, an optical tracking camera, a light source, and one or more markers that are configured to engage an LED wall without impeding the light generated by the LED wall so that the optical tracking camera can identify its own location in three dimensional space, and by extrapolation, the location in three dimensional space of the main camera.

The invention discloses a data interaction request anomaly detection method and device and a nonvolatile storage medium. The method comprises the following steps: determining a plurality of mark points on a data interaction path of target storage equipment; when a target storage device receives a real-time data interaction request, respectively obtaining moments for triggering a plurality of mark points, triggering stage identifiers of the plurality of mark points, and obtaining a plurality of timestamps and stage identifiers corresponding to the plurality of timestamps; calculating respective delay time of the plurality of data interaction stages based on the plurality of timestamps and the stage identifiers corresponding to the plurality of timestamps; respectively judging the respective delay time of the plurality of data interaction stages and the respective preset delay time threshold of the plurality of data interaction stages; and determining the data interaction stage of which the delay time is greater than a preset delay time threshold as an abnormal interaction stage. According to the invention, the technical problem that high-precision and low-overhead monitoring of input / output delay faults is difficult to realize in the prior art is solved.

Systems and methods for visualizing patient anatomy during planning or performing a medical procedure are described. The systems and methods involve marking an anatomical region of interest having an unclear or less visible boundary based on a reference image having a marker for a corresponding reference image. An example method includes obtaining an image of a patient's anatomy, and obtaining a plurality of reference images having markers of one or more anatomical regions of interest (ROIs). The example method also includes calculating a transformation between the image of the patient anatomy and the reference image. Still further, the example method includes generating one or more sets of markers of the ROI within the image of the patient anatomy. Still further, the example method includes displaying a graphical user interface (GUI) depicting the anatomical ROI (calculated based on the reference image) within the patient anatomy.

The utility model discloses a railway continuous beam precision measuring device which comprises a guide rod, a base, clamping blocks, a stand column, a transverse plate, a vertical plate, a marker, a circular ring and a spirit bubble, the guide rod is fixed on a continuous beam through a screw, the guide rod is provided with the base in sliding connection, and the two sides of the lower portion of the base are provided with the clamping blocks which are integrally formed. The space between the two clamping blocks can be connected with the guide rod, a stand column installed through screws is arranged on the base, the stand column is sleeved with a circular ring, a transverse plate installed through screws is arranged on one side of the circular ring, a vertical plate installed through screws is arranged behind the transverse plate, the vertical plate is designed to be in an inverted L shape, a plurality of markers are arranged on the transverse plate, and a spirit bubble is embedded in the base. The device is reasonable in design; the horizontal bubble on the base can ensure the levelness of the base so as to ensure the measurement precision.

Focusing on improving camera accuracy, this provides an easier way to calibrate cameras. [Solution] A calibration method performed in a system comprising a robot that performs a predetermined machining operation on a workpiece, a camera capable of imaging the robot or the workpiece, a plurality of markers M arranged in a workspace where the robot and camera are installed, and a computer, the method comprising: an imaging step in which the camera images at least one of the plurality of markers M; and a determination step in which the computer determines the position and orientation of the camera based on the image captured by the camera, wherein the plurality of markers M are uniquely identifiable, and the imaging surfaces of the plurality of markers M are arranged in a direction intersecting the horizontal plane.

A computer-implemented method for detecting a first object in a space (500) includes: i) receiving data regarding one or more detections made by at least one narrowband infrared sensor of narrowband infrared radiation coming from a first marker positioned at a first point on the first object. The method then includes ii) determining the location of the first point in the space from the location of the detected signal in the received data. The space (500) may be a factory or an outdoor construction site where a large item (512) is being manufactured. The large item (512) has multiple markers on its surface that emit or reflect infrared (IR) radiation. IR sensors (204) are positioned at different points in the space and transmit data regarding the detection of the markers to an IR sensor control module (502) of the computer node (100). A positioning engine (504) determines the location of each point in the space corresponding to the marker from the location of the detected signal in the received data. The robot movement controller module 506 uses the determined locations to, for example, determine orientation and / or position / pose information for the robots 508a, 508b, 508c and determine actions to be performed by the robots. Markers may also be placed on people 510 working within the space 500 to track their movements in relation to the robots. Proximity alerts can be issued if someone gets too close to the automated machinery.