Abstract: This application provides encapsulation and decapsulation methods and apparatuses for a point cloud media file, and a storage medium. The methods comprises acquiring a target point cloud and encoding the target point cloud to obtain a bitstream, the target point cloud comprising at least one type of attribute information, each type of attribution information comprising M attribute instances of instance data, and M being a positive integer greater than 1; and encapsulating the bitstream of the target point cloud according to first feature information of at least one attribute instance of M attribute instances to obtain a media file, the media file comprising the first feature information of the at least one attribute instance.

Abstract: This application provides a packaging method and apparatus for a point cloud media file, a device and a storage medium. The method includes acquiring target point cloud; encoding the target point cloud to obtain an alternative group of the target point cloud, the alternative group comprising N interchangeable media tracks, and N being an integer greater than 1; adding quality indication information into at least one media track among the N media tracks to obtain a media file of the target point cloud, the quality indication information indicating quality of the media track; and packing the media file with first information, the first information indicating quality information of at least one media track among the N media tracks.

Abstract: The present disclosure provides methods of treating patients having an ophthalmic condition, methods of identifying subjects having an increased risk of developing an ophthalmic condition, methods of detecting human angiopoietin like 7 (ANGPTL7) variant nucleic acid molecules and variant polypeptides, and ANGPTL7 variant nucleic acid molecules and variant polypeptides.

Abstract: Embodiments of this application provides a data processing method performed by a computer device, the method including: obtaining k component tracks in a target file, each component track having a component track data box, which comprises a segment quantity and space region information; the segment quantity referring to a quantity of atlas segments corresponding to the component track to which the component track data box belongs; the space region information referring to a space region of the component track to which the component track data box belongs; k being a positive integer; and unpacking the target file according to each component track data box, to obtain a corresponding segment display content.

Abstract: A file decapsulation method for a free viewpoint video includes receiving a media file of free viewpoint video data. The media file includes a video track, the free viewpoint video data includes video data of N viewpoints, and the video track includes codec independence indication information and video bitstreams of M viewpoints. The codec independence indication information indicates whether video data of one of the M viewpoints in the video track depends on video data of other viewpoints during codec. The method further includes decapsulating the media file according to the codec independence indication information, to obtain a video bitstream corresponding to at least one of the M viewpoints, and decoding the video bitstream corresponding to the at least one of the M viewpoints, to obtain reconstructed video data of the at least one of the M viewpoints.

Abstract: In a method for decoding point cloud media, point cloud media data including a plurality of point cloud samples encapsulated in one or more tracks is received. A compression unit of a point cloud sample in the plurality of point cloud samples is obtained. A media file data box of the point cloud sample includes type information that indicates a type of the compression unit. The type of the compression unit is one of a geometry header indicating a parameter set of geometry information, an attribute header indicating a parameter set of attribute information, a geometry slice indicating point cloud slice data of the geometry information, and an attribute slice indicating point cloud slice data of the attribute information. Whether the compression unit is to be decoded is determined according to the type information. The compression unit is decoded to obtain point cloud data based on the determination.

Abstract: The disclosure belongs to the field of genetic engineering and discloses an expression cassette of a gene including overlapping open reading frames and an application thereof in an insect cell. The expression cassette includes from 5? to 3? and operably linked: a promoter capable of driving transcription in the insect cell; an artificially constructed sequence; overlapping open reading frames missing only a first translation start codon; wherein the artificially constructed sequence includes a first intron and a second intron with splicing activity in the insect cell, the first intron and the second intron share a 5? part or a 3? part, and the artificially constructed sequence does not include a translation start codon; during a post-transcriptional processing process, through an alternative splicing function of the first intron and the second intron, a translation start codon AUG can be formed.

Abstract: The present disclosure relates to the field of image processing technologies, and provides an ultrasound image segmentation method and apparatus, a terminal device, and a storage medium. With the method, simulated ultrasound images are synthesized based on Computed Tomography (CT) images. An image segmentation model is pre-trained using the synthesized simulated ultrasound images. The pre-trained image segmentation model is migrated, by employing a transfer learning method, to real sample ultrasound images for further training to obtain a final image segmentation model. A segmentation processing on an ultrasound image to be segmented is completed by the final image segmentation model. In this way, the ultrasound images synthesized based on the CT images can be used to replace a part of training data, thereby solving a problem of lack of training data when training the image segmentation model.

Abstract: The present disclosure relates to the technical field of image processing and provides a motion estimation method and apparatus for a tumor, a terminal device, and a storage medium. The method includes: obtaining a current value of a respiratory correlation signal of a patient, the respiratory correlation signal reflecting a motion trajectory feature of a designated organ with the tumor of the patient in each of different respiratory states; inputting the current value of the respiratory correlation signal into a tumor motion estimation model to obtain an estimated current position of the tumor; and inputting the estimated current position of the tumor into an organ motion estimation model to obtain an estimated current velocity vector field of the designated organ. By adopting the motion estimation method, it realizes a respiratory motion estimation for the whole organ and enhance accuracy of positioning the tumor and vital anatomical structures around the tumor.

Abstract: The present subject matter provides a media file packing and unpacking method, apparatus and device, and a storage medium. Code streams after N items are coded. The items comprise point clouds or static panoramic images. N is a positive integer greater than 1. The code streams of the N items are packed into at least one entity group. A first indication information is added to the entity group with regard to each entity group in at least one entity group to obtain media files of the N items. The first indication information indicates the types of all items having an association relation in the entity group. The media files of the N items are transmitted to the file unpacking device.

Abstract: A data processing method for immersive media including acquiring point cloud data, encoding the point cloud data to obtain a point cloud code stream and a header information set, determining reuse indication information of the point cloud code stream based on a reuse state of the header information set, generating decoder configuration record information for the point cloud code stream according to the reuse state, and encapsulating the point cloud code stream and the decoder configuration record information as a media file of the immersive media.

Abstract: A data processing method for volumetric media is disclosed.

Abstract: Disclosed herein are methods for otoprotection against platinum-based antineoplastic agents by administering a thiosulfate salt to a subject in need thereof. Typically, the thiosulfate salt is administered to the subject scheduled to be administered a platinum-based antineoplastic agent within 4 hours. Alternatively, the thiosulfate salt is administered within 7 hours after the administration of a platinum-based neoplastic agent.

Abstract: A computer device receives a signaling file corresponding to a multimedia resource. The signaling file includes descriptors corresponding to a plurality of track data of the multimedia resource, respectively. Dependency identifiers included in the descriptors correspond to the main bitstream track data pointing to descriptors corresponding to the library picture track data. The computer device parses the signaling file and determines a dependency relationship between the main bitstream track data and the library picture track data according to the dependency identifiers. The computer device sequentially acquires the library picture track data and the main bitstream track data from a data source side according to the dependency relationship.

Abstract: The present invention provides monoclonal antibodies that bind to the complement factor 5 (C5) protein, and methods of use thereof. In various embodiments of the invention, the antibodies are fully human antibodies that bind to C5 protein. In some embodiments, the antibodies of the invention are useful for inhibiting or neutralizing C5 activity, thus providing a means of treating or preventing a C5-related disease or disorder in humans. In some embodiments, the invention provides for an anti-C5 antibody that has improved pharmacokinetic and pharmacodynamic properties, e.g., a half-life of more than 10 days.

Abstract: In some examples, a system allocates a plurality of partitions of a shared storage to respective data services. Based on respective utilizations of the plurality of partitions, the system selects, for a given data service of the data services, between a global storage apportionment process to rebalance shares of the shared storage among the data services, and a local storage apportionment process, where the rebalancing includes releasing a partition of the given data service, and the local storage apportionment process comprising freeing segments within the partition of the given data service.

Abstract: A light-emitting device includes a first nitride semiconductor structure; a stress relief structure on the first nitride semiconductor structure including a plurality of narrow band gap layers and a plurality of wide band gap layers alternately stacked, wherein one of the plurality of wide band gap layers includes a plurality of wide band gap sub-layers and one of the plurality of wide band gap sub-layers includes aluminum; an active structure on the stress relief structure including a plurality of quantum well layers and a plurality of barrier layers alternately stacked, wherein one of the plurality of barrier layers includes a plurality of barrier sub-layers and one of the plurality of barrier sub-layers includes aluminum, an aluminum composition of the wide band gap sub-layer is greater than or equal to that of the barrier sub-layer, and an average aluminum composition of the wide band gap layer is greater than that of the barrier layer; and an electron blocking structure on the active structure.

Abstract: In some examples, a system allocates a plurality of partitions of a shared storage to respective data services. Based on respective utilizations of the plurality of partitions, the system selects, for a given data service of the data services, between a global storage apportionment process to rebalance shares of the shared storage among the data services, and a local storage apportionment process, where the rebalancing includes releasing a partition of the given data service, and the local storage apportionment process comprising freeing segments within the partition of the given data service.

Abstract: A method for presenting a point cloud viewport includes: acquiring a point cloud file, the point cloud file including information of a point cloud viewport and auxiliary information associated with the point cloud viewport, the auxiliary information corresponding to a type of the point cloud viewport; parsing the point cloud file to obtain the information of the point cloud viewport and the auxiliary information; and presenting the point cloud viewport according to the information of the point cloud viewport, and presenting corresponding description content in the point cloud viewport according to the auxiliary information.

Abstract: A media data processing method includes: acquiring a description data box of a jth track in the M tracks, the description data box including temporal domain track indication information, the temporal domain track indication information being used for indicating a track encapsulating mode of the N temporal domain layers, the temporal domain track indication information including temporal domain layer information of a temporal domain layer encapsulated into the jth track, j being a positive integer, and j?M; and decoding the media data according to the temporal domain track indication information, thus improving the flexibility of multi-track encapsulation on different temporal domain layers.