Abstract: Provided are a point cloud encoding method and decoding method, and an encoder and a decoder. The encoding method includes: processing attribute information of a target point in a point cloud, so as to obtain a predicted residual of the attribute information of the target point; quantizing the predicted residual on the basis of a quantized weight of the target point and a quantized stride of the target point, so as to obtain a quantized residual of the attribute information of the target point, wherein the quantized weight of the target point is the weight used when weighting the quantized stride of the target point; and encoding the quantized residual, so as to obtain a code stream.

Abstract: Disclosed is a method, system, and apparatus for evaluating test data of pelvic floor muscle. The method includes obtaining the test data of the pelvic floor muscle within a test period. The method includes presetting a threshold value. The method includes obtaining a first baseline image for type I pelvic floor muscle fibers and a second baseline image for type II pelvic floor muscle fibers. The method includes constructing a test curve corresponding to type I pelvic floor muscle fibers and a test curve corresponding to type II pelvic floor muscle fibers based on a test segment corresponding to type I pelvic floor muscle fibers and a test segment corresponding to type II pelvic floor muscle fibers, respectively. The method includes determining a muscle strength grade and/or a fatigue degree for the type I muscle by combining the first baseline image and the test curve corresponding to the type I pelvic floor muscle fibers.

Abstract: Disclosed in embodiments of the present application are a point cloud encoding method, a point cloud decoding method, an encoder, a decoder, and a computer storage medium. The point cloud encoding method comprises: an encoder determining n target neighbouring points of a current point; determining a target prediction mode from k prediction modes on the basis of geometric information of the n target neighbouring points; determining a prediction value of attribute information of the current point according to the target prediction mode and attribute information of the n target neighbouring points; and encoding the current point according to the prediction value.

Abstract: A quantization method and apparatus for a text feature extraction model, and a device and a storage medium. The method includes: in a training process of a text feature extraction model, determining, according to a target quantization parameter, a quantization interval corresponding to the target quantization parameter, where the quantization interval includes a part of floating-point values of the target quantization parameter; constructing a mapping relationship between floating-point values and fixed-point values of the target quantization parameter based on the quantization interval, where a floating-point value smaller than a left end point of the quantization interval—is mapped to a quantized minimum fixed-point value, and a floating-point values larger than a right end point of the quantization interval is mapped to a quantized maximum fixed-point value; and performing a quantization operation on the target quantization parameter based on the mapping relationship.

Abstract: A method of activating an x-ray source includes monitoring a patient's breathing using a depth camera aimed at the patient and detecting cyclical peaks in depth data provided by the depth camera. The x-ray source is activated at a predetermined time based on the detected cyclical peaks in order to capture a radiographic image of the patient at a peak inhalation time.

Abstract: An x-ray imaging system includes an x-ray source assembly having a transmitter and a video camera. A free standing digital radiographic (DR) detector includes a receiver, wherein the transmitter and receiver are configured to determine an spatial orientation of the digital radiographic detector relative to the x-ray source assembly. A digital display presents a live video image of a patient with a current position of the DR detector overlayed on the video image of the patient. A DR detector having built-in AEC sensors may display the current position of each of the AEC sensors in the overlay relative to the DR detector position based on the determined orientation of the DR detector. Each of the AEC sensors are individually activatable, and an AEC selection interface is configured to receive an operator selection of one or more of the AEC sensors to be activated.

Abstract: Various embodiments are described herein related to an assay, method and apparatus for performing an RNA Disruption Assay (RDA) for cellular RNA optionally in response to a cytotoxic treatment such as chemotherapy and/or radiation treatment. The method comprises obtaining at least one electropherogram dataset corresponding to a unique biological sample comprising the cellular RNA at a time point, optionally during or after the treatment; determining values for features from at least two shifted regions of the at least one electropherogram dataset, the shifting being due to the treatment; and optionally determining an RDA score based on a combination of the values of the features.

Abstract: A point cloud coding method, including: partitioning a point cloud, and determining a current coding block; determining a quantization parameter optimization enable identifier, a hierarchical level index, and a quantization parameter offset parameter of the current coding block; determining, according to the hierarchical level index and the quantization parameter offset parameter, a quantization step Qstep corresponding to a level of detail; and upon detecting that the quantization parameter optimization enable identifier is a first value, performing operations for one or more points included in the current coding block.

Abstract: A radiographic imaging system provides a digital x-ray detector embedded in a patient bed. A patient lying normally on the bed either flat or at an angle, is positioned above the digital detector. A frame assembly is attached to the bed under the patient and movably secures the digital detector. The frame assembly includes motorized control configured to move the digital detector in the x-y plane of the detector according to commands transmitted by system operators or by automatic system instruction.

Abstract: A flexible digital radiographic detector assembly includes a flexible sleeve enclosing a photosensor array supported by a flexible substrate. Integrated circuit readout electronics are coupled to the photosensor array. The digital radiographic detector assembly communicates with a local computer system or with a cloud server to transmit image data captured in the photosensor array, to display the image data on a screen, and to analyze defects that may be present in the image.

Abstract: A fluid pump includes a pump casing, an impeller arranged in the pump casing, and a motor for driving the impeller to rotate in the pump casing. The motor includes a stator and a rotor connecting to the impeller. A motor shaft is fixed arranged in the fluid pump, with one end of the motor shaft connected to the pump casing. The impeller and the rotor are rotatably placed around the motor shaft, and a washer is placed around the motor shaft and axially sandwiched between the pump casing and the rotor, for limiting an axial movement of the rotor and the impeller.

Abstract: A distributed radiographic imaging system is formed using a radiographic imaging apparatus having a radiographic energy source and a digital radiographic detector, a first computer system, and a second computer system. The components of the distributed imaging system are communicatively connected. The radiographic imaging apparatus and the first computer system wirelessly communicate when they are in a predefined proximity with each other. The second computer system determines if the radiographic imaging apparatus is currently being used in an exclusive imaging session and, in response to an exclusive session request, transmits a session approval token to the first computer system and to the radiographic imaging apparatus if the radiographic imaging apparatus is not currently being used in an exclusive imaging session. The first computer system and the radiographic imaging apparatus establish an exclusive communication and control session in response to receiving the session approval token.

Abstract: A fluid pump includes a pump casing, an impeller arranged in the pump casing, and a motor for driving the impeller to rotate in the pump casing. The pump casing includes a metal sleeve arranged therein and dividing an internal space of the pump casing into a first space and a second space. The motor includes a stator received in the second space and a rotor received in the first space. The rotor is fixedly connected to the impeller and rotatably connected to a shaft. A shaft sleeve is fixedly arranged in the sleeve, and an end of the shaft is fixedly inserted into the shaft sleeve.

Abstract: A point cloud decoding method, a point cloud encoding method, and a decoder are provided in implementation of the disclosure. The decoding method includes the following. A bitstream of a point cloud is parsed to obtain an initial reconstructed value of attribute information of a target point in the point cloud. The initial reconstructed value is converted into an initial luma value and an initial chroma value. A final chroma value is obtained by filtering the initial chroma value with a Kalman filtering algorithm. A final reconstructed value of the attribute information of the target point is obtained based on the final chroma value and the initial luma value. A decoded point cloud is obtained according to the final reconstructed value of the attribute information of the target point.

Abstract: A point cloud encoding method is provided. The method includes the following. A residual value of attribute information of a current point in a point cloud is determined according to a prediction value of the attribute information of the current point. An index of the current point is determined. Lossless encoding is performed on the residual value of the attribute information of the current point, when the index of the current point belongs to an index range of a first point. A quantized residual value of the attribute information of the current point is obtained by quantizing the residual value of the attribute information of the current point based on a quantization weight of the current point and a quantization step size of the current point, when the index of the current point is beyond the index range of the first point, and the quantized residual value is encoded.

Abstract: A point cloud decoding method comprises: parsing a bitstream of a point cloud to obtain reconstructed information of position information of a target point in the point cloud; obtaining predicted values of attribute information of the target point according to the reconstruction information of the position information of the target point; parsing the bitstream to obtain residual values of the attribute information of the target point; obtaining initial reconstructed values of the attribute information of the target point according to the predicted values and the residual values of the attribute information of the target point; filtering the initial reconstructed values of the attribute information of the target point by using a Kalman filtering algorithm, to obtain final reconstructed values of the attribute information of the target point; and obtaining a decoded point cloud according to the final reconstructed values of the attribute information of the target point.

Abstract: The present disclosure provides a point cloud encoding method and system, a point cloud decoding method and system, a point cloud encoder, and a point cloud decoder. A prediction mode of attribute information of a current point is determined through geometric information of a point in a point cloud, so that a determination process of the prediction mode is decoupled from a reconstruction process of the attribute information of the point in the point cloud, the two processes can be performed in parallel, and thus the efficiency of encoding and decoding is improved.

Abstract: A modular digital radiographic detector is constructed to have a housing for receiving and securing detector components. One or more removable and interchangeable modular detector components maybe swapped with an identical component or a replacement version of the removed modular detector component. Compartmental openings are formed in the housing and include electrical connectors for integrating one or more replacement detector components into the detector's communication system.

Abstract: The present disclosure relates generally to nitrogen-containing five-membered heterocyclic derivatives usefulness in treatment of conditions associated with Checkpoint kinase (CHK), particularly more specifically CHK-1 enzymes. Methods of use, compositions, and method of synthesis are also disclosed.

Abstract: Embodiments of the present disclosure provide a method and an apparatus for image classification. The method includes receiving an image to be classified; inputting the image to a discriminator of a first Generative Adversarial Network, GAN; and outputting a result indicating real and an index of a predetermined classification, or a result indicating fake.