Patents by Inventor Wenyuan QI
Wenyuan QI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250232490Abstract: A method for gating positron emission tomography (PET) data, including receiving tomography data acquired by imaging an object using a PET apparatus, segmenting the received tomography data into a plurality of bins of tomography data, generating a latent feature vector for each bin of the plurality of bins of tomography data using a feature extraction neural network, the feature extraction neural network being pre-trained to extract latent feature vectors on a set of training data, clustering the generated latent feature vectors; and reconstructing an image using the received tomography data based on the clustering of the generated latent feature vectors.Type: ApplicationFiled: January 10, 2025Publication date: July 17, 2025Applicants: CANON MEDICAL SYSTEMS CORPORATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jinyi QI, Wenyuan QI, Li YANG, Evren ASMA, Jeffrey KOLTHAMMER
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Publication number: 20250228513Abstract: A nuclear medicine diagnosis apparatus according to an embodiment includes processing circuitry configured: to generate a feature vector for each of the mini frames from list mode data acquired by performing a nuclear medicine scan and to calculate a Euclidean distance between each of the feature vectors corresponding to frames and a reference phase vector; to calculate, on the basis of the Euclidean distances, a mean Euclidean distance for a plurality of conditions obtained by varying a percentage of counts to be used in a reconstructing process and to determine the percentage on the basis of a relationship between the percentage and the mean Euclidean distance; and to generate a gated image by carrying out an image reconstruction while using the determined percentage as a gating condition.Type: ApplicationFiled: January 9, 2025Publication date: July 17, 2025Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akshay Narayan Prabhu VERLEKER, Shogo ONO, Wenyuan QI
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Publication number: 20250232444Abstract: A method for performing image enhancement using a neural network is provided. The method includes acquiring an image of an imaging object, and applying the acquired image to a trained neural network to generate an image-enhanced image of the imaging object. The neural network was trained by receiving a training image pair including a first image and a second image, performing an image intensity preprocessing on the received image pair to generate a preprocessed first image and a preprocessed second image, such that the preprocessed first image has a first intensity range covering a portion of an intensity range of the first image, and the preprocessed second image has a second intensity range covering a portion of an intensity range of the second image, and training the neural network using the preprocessed first image as an input image and the preprocessed second image as a target image.Type: ApplicationFiled: January 10, 2025Publication date: July 17, 2025Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, CANON MEDICAL SYSTEMS CORPORATIONInventors: Yu-Jung TSAI, Wenyuan QI, Jinyi QI, Li YANG, Evren ASMA, Jeffrey KOLTHAMMER
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Publication number: 20250231305Abstract: A PET apparatus includes a detector block including a miniblock including detector crystals, a first detector crystal and a second detector crystal being separated by an inner reflector, the inner reflector having a depth-dependent transparency, a first photosensor configured to detect light from a gamma ray detection event, and a second photosensor configured to detect the light from the gamma ray detection event, a first intensity and a second intensity of the light detected by the first and second photosensor being dependent on the depth-dependent transparency of the inner reflector; and processing circuitry configured to determine, based on the detected first intensity, a first energy, determine, based on the detected second intensity, a second energy, and determine, based on the first energy and the second energy, a depth of interaction (DOI) of the gamma ray detection event.Type: ApplicationFiled: January 17, 2024Publication date: July 17, 2025Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Peng PENG, Yi QIANG, Wenyuan QI, Xiaoli LI, Kent BURR
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Publication number: 20250218432Abstract: A voice recognition system includes one or more controllers that receive an electrical signal representative of a voice signal generated by an occupant and image data representative of a head and an upper body of the occupant. The controllers convert the electrical signal representative of the words spoken by the occupant into a sequence of tokens based on a supervised multicategory machine learning algorithm, generates one or more sentences based on the sequence of tokens, and executes one or more eye and body tracking algorithms to determine one or more occupant intent factors. The controllers determine an intended action of the occupant based on the occupant intent factors and a context of the voice signal generated by the occupant. The controllers determine a hands-free task based on the context of the voice signal generated by the occupant, the intended action, and the one or more sentences.Type: ApplicationFiled: January 17, 2024Publication date: July 3, 2025Inventor: Wenyuan Qi
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Publication number: 20250210039Abstract: A method for voice assistance includes receiving, by a vehicle controller of a vehicle, audio data. The audio data is indicative of a voice command uttered by a user of the vehicle in natural language. The method also includes encoding, using an encoder of a variational autoencoder, the audio data into a latent space to generate encoded data. The method also includes receiving contextual data relating to the voice command uttered by the user of the vehicle. The method also includes generating, using a decoder of the variational autoencoder, an expression from the encoded data and the contextual data. The expression is representative of the audio data. The method also includes commanding, using the vehicle controller, the vehicle to generate a response based on the expression generated by the decoder of the variational autoencoder.Type: ApplicationFiled: January 10, 2024Publication date: June 26, 2025Inventor: Wenyuan Qi
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Patent number: 12342252Abstract: A method for wireless data transmission and reconstruction includes receiving data from a vehicle, extracting key frames from the data, and encoding, using an encoder of a variable autoencoder, the key frames of the data into a latent space to generate compressed data. The method also includes transmitting the compressed data from the vehicle to a remote server. The method includes generating, using a decoder of the variable autoencoder, data points from the compressed data, where the data points are representative of the data received from the vehicle.Type: GrantFiled: November 29, 2023Date of Patent: June 24, 2025Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Wenyuan Qi
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Patent number: 12318232Abstract: A PET scanner includes gamma-ray detector rings that form a bore through which an imaging subject is translated, a length of the bore defining an axial length of the PET scanner, the gamma-ray detector rings being movable along the axial length, the gamma-ray detector rings including gamma-ray detector modules therein, and processing circuitry configured to receive PET data associated with a plurality of transaxial slices of the imaging subject, the PET data including a first set of spatial information and timing information corresponding to a first data acquisition period for the gamma-ray detector modules in a first axial position and a second set of spatial information and timing information corresponding to a second data acquisition period for the gamma-ray detector modules in a second axial position, and reconstruct a PET image based on the first set of spatial and timing information and the second set of spatial and timing information.Type: GrantFiled: October 11, 2022Date of Patent: June 3, 2025Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Wenyuan Qi, Kent C. Burr, Yi Qiang, Evren Asma, Jeffrey Kolthammer
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Publication number: 20250168076Abstract: A system for generating a virtual wireless node includes a plurality of wireless nodes and one or more central computers in electrical communication with the plurality of wireless nodes. The one or more central computers are programmed to determine a plurality of optimal node parameters using a computer simulation and determine a plurality of differences and a plurality of constraints based at least in part on the plurality of optimal node parameters and a plurality of real node parameters. The one or more central computers are further programmed to determine a plurality of virtual node parameters for the virtual wireless node based at least in part on the plurality of differences and the plurality of constraints and adjust the plurality of real node parameters of the plurality of wireless nodes to generate the virtual wireless node based at least in part on the plurality of virtual node parameters.Type: ApplicationFiled: December 4, 2023Publication date: May 22, 2025Inventor: Wenyuan Qi
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Publication number: 20250168666Abstract: A method for estimating signal to interference and noise ratio (SINR) in a wireless network environment is provided. The method may include collecting a plurality of wireless connection datasets about the wireless network environment. Each of the plurality of wireless connection datasets includes at least one measured environment parameter and a measured SINR. The method further may include generating a regression model based at least in part on the plurality of wireless connection datasets. The regression model is configured to determine an estimated SINR based on the at least one measured environment parameter. The method further may include training an SINR optimization machine learning algorithm to determine an optimized estimated SINR based at least in part on the estimated SINR.Type: ApplicationFiled: December 7, 2023Publication date: May 22, 2025Inventor: Wenyuan Qi
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Publication number: 20250168607Abstract: A method for wireless data transmission and reconstruction includes receiving data from a vehicle, extracting key frames from the data, and encoding, using an encoder of a variable autoencoder, the key frames of the data into a latent space to generate compressed data. The method also includes transmitting the compressed data from the vehicle to a remote server. The method includes generating, using a decoder of the variable autoencoder, data points from the compressed data, where the data points are representative of the data received from the vehicle.Type: ApplicationFiled: November 29, 2023Publication date: May 22, 2025Inventor: Wenyuan Qi
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Publication number: 20250157066Abstract: A method for SLAM-based parking assist includes determining that a host vehicle is entering a corridor adjacent a target parking slot and determining a potential reusability of at least one of a plurality of previously determined training outcome of a training process for the target parking slot. The training outcome includes training identifying data of a potential parking slot. The method further includes receiving identifying data of the target parking slot, identifying which of the plurality of training outcomes is reusable based on the identifying data of the target parking slot to select an identified training outcome, comparing the identifying data of the target parking slot with the identifying data of the potential parking slot of the identified training outcome, and loading the identifying data of the target parking slot into a SLAM-based parking assist.Type: ApplicationFiled: November 28, 2023Publication date: May 15, 2025Inventors: Yuan Zhang, Wenyuan Qi
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Patent number: 12299780Abstract: An apparatus for reconstructing a positron emission tomography (PET) image, comprising processing circuitry configured to extract, from raw data obtained from a PET scanner, energy data and timing data associated with a plurality of annihilation events, the extracted energy data and the extracted timing data for each annihilation event corresponding to interactions between each of a pair of gamma rays generated by each annihilation event and one or more gamma ray detectors of the PET scanner, classify each annihilation event based on respective extracted energy data and respective extracted timing data, determine, for each annihilation event and based on a calculated timing resolution of the annihilation event, a width of a time-of-flight kernel, and reconstruct, by processing circuitry, the PET image based on the obtained raw data from the PET scanner and the determined width of the time-of-flight kernel associated with each annihilation event.Type: GrantFiled: April 22, 2021Date of Patent: May 13, 2025Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Peng Peng, Yi Qiang, Wenyuan Qi, Xiaoli Li, Li Yang
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Publication number: 20250150842Abstract: A method for providing a computer simulation of wireless infrastructure may include initializing a simulated environment. The simulated environment includes a plurality of environment parameters. The method further may include adding a plurality of simulated wireless nodes to the simulated environment to form a simulated wireless network, based on a plurality of node parameters. The method further may include evaluating at least one performance metric of the simulated wireless network. The method further may include adjusting at least one of: the plurality of node parameters and the plurality of environment parameters based at least in part on the at least one performance metric of the simulated wireless network. The method further may include repeating the evaluating and adjusting steps until an optimal solution for the plurality of node parameters is identified based at least in part on the at least one performance metric.Type: ApplicationFiled: November 30, 2023Publication date: May 8, 2025Inventor: Wenyuan Qi
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Patent number: 12286129Abstract: A method of soliciting an occupant intervention for a simultaneous localization and mapping-based navigation system. A vehicle path plan and a motion control instruction are created and a suspected obstacle in a drive path is identified, wherein the drive path provides a portion of the vehicle path plan. The method further includes providing an indication on a first display that an intervention by an occupant is requested and determining if the occupant is paying attention to the indication on the first display. A system of performing the method includes a controller configured to execute instructions executing the method.Type: GrantFiled: January 18, 2023Date of Patent: April 29, 2025Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yuan Zhang, Wenyuan Qi, Tianxiang Cao
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Patent number: 12277861Abstract: A method can be used to provide smart notifications to avoid collisions while the vehicle maneuvers in a tight structural environment, such as a home garage or an underground parking lot. The method includes receiving historical vehicle-trajectory data. The historical vehicle-trajectory data includes the location and the heading of the vehicle for each of the plurality of historical trajectories along the structure. The method further includes clustering the plurality of historical trajectories of the vehicle along the structure by types of maneuvers to generate a plurality of trajectory clusters. The method also includes creating a probability distribution bitmap using the plurality of trajectory clusters and creating a topographic map based on the probability distribution bitmap.Type: GrantFiled: March 24, 2023Date of Patent: April 15, 2025Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Bo Yu, Brent Navin Roger Bacchus, Jiabin Shen, Yuan Zhang, Wenyuan Qi
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Publication number: 20250083663Abstract: A system for augmented-reality (AR)-assisted vehicle parking with operator-in-loop selections and alignments of feature point vicinities (FPVs) includes a vehicle, human-machine interfaces (HMIs), sensors detecting FPVs of a parking location and controllers. The controllers have a processor, memory, and input/output (I/O) ports in communication with the HMIs and sensors. The memory stores an AR-assisted parking application (ARAPA) executed by the processor. The AR-assisted parking application (ARAPA) has a training session (TS) and a live session (LS), and is activated upon completing parking at a parking spot at the parking location. The TS portion trains the ARAPA to recognize FPVs of the parking spot. The LS portion prompts an operator to select the parking spot, guides the operator into the parking spot by displaying trained FPVs onto live sensor data displayed on the HMI, and instructs the operator to align the trained FPVs with corresponding real-world FPVs by maneuvering the vehicle.Type: ApplicationFiled: September 21, 2023Publication date: March 13, 2025Inventors: Yuan Zhang, Wenyuan Qi, Bo Yu, Tianxiang Cao
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Patent number: 12193858Abstract: A method is provided for count loss correction based on detector dead time in a radiation diagnosis apparatus. The method includes acquiring scan data from a scan of a patient performed using the radiation diagnosis apparatus; determining, from the acquired scan data, a first count rate occurring in a first energy window spanning a first energy range; determining, from the acquired scan data, a second count rate occurring in a second window spanning a second energy range, the second energy range being different from the first energy range; calculating a particular count loss correction factor based on the determined first count rate and the determined second count rate; and reconstructing an image based on the acquired scan data and the calculated particular count loss correction factor.Type: GrantFiled: July 21, 2022Date of Patent: January 14, 2025Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yi Qiang, Xiaoli Li, Wenyuan Qi
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Patent number: 12159330Abstract: Upon receiving list-mode data by detecting radiation emitted from a radiation source positioned with a field of view of a medical imaging scanner, each photon included in the list-mode data can be classified according to one or more interaction properties, such as energy or number of crystals interacted with. Grouped pairs of photons can be generated based on the classifying, and a corresponding interaction-property-specific correction kernel (e.g., a corresponding interaction-property-specific point spread function correction kernel) can be selected for each group. Corresponding interaction-property-specific correction kernels can then be utilized to generate higher quality images.Type: GrantFiled: February 17, 2022Date of Patent: December 3, 2024Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Wenyuan Qi, Qiang Yi, Evren Asma, Li Yang, Peng Peng
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Patent number: 12154432Abstract: A method for generating garage parking notifications includes receiving current parked-vehicle data indicating that a vehicle has been parked inside a garage. The current parked-vehicle data includes the current location of the vehicle parked inside the garage. The method further includes determining whether the current location of the vehicle inside the garage is within a warning zone. The warning zone is an area inside the garage where the vehicle has not been frequently parked. The warning zone area is determined using historical parked-vehicle data. The method further includes generating a notification to warn an operator of the vehicle that the vehicle should be moved in response to determining that the current location of the vehicle inside the garage is within the warning zone.Type: GrantFiled: March 9, 2023Date of Patent: November 26, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Bo Yu, Brent Navin Roger Bacchus, Jiabin Shen, Yuan Zhang, Wenyuan Qi