Abstract: In some embodiments, a method sends a set of first requests for a set of first segments of a video in a playback session. A first protocol from a plurality of protocols is specified in at least one of the set of first requests. The set of first segments is received. The method determines whether to switch from using the first protocol to a second protocol in the playback session based on receiving the set of first segments. When switching to the second protocol, the method sends a second request in the playback session, wherein the second request indicates the second protocol is to be used to send a second segment of the video.

Abstract: An organic light-emitting diode (OLED) display substrate, a manufacturing method thereof and a display panel are provided. The OLED display substrate has pixel regions and includes a base substrate and a pixel defining layer disposed on the base substrate; in regions of the pixel defining layer corresponding to the pixel regions, accommodation parts penetrating the pixel defining layer are disposed, and the pixel defining layer is further provided with guide parts disposed corresponding to the accommodation parts, the guide parts are located on a periphery of the corresponding accommodation parts and formed by recessed areas which are formed on a side of the pixel defining layer away from the base substrate, the recessed areas do not penetrate the pixel defining layer, and an orthographic projection of the guide part on the base substrate is directly coupled to an orthographic projection of the corresponding accommodation part on the base substrate.

Abstract: A laser tracker system and method of operating the laser tracker system is provided. The method includes providing a mobile computing device coupled for communication to a computer network. Identifying with the mobile computing device at least one laser tracker device on the computer network, the at least one laser tracker device including a first laser tracker device. The mobile computing device is connected to the first laser tracker device to transmit signals therebetween via the computer network in response to a first input from a user. One or more control functions are performed on the first laser tracker device in response to one or more second inputs from the user, wherein at least one of the one or more control functions includes selecting with the mobile computing device a retroreflective target and locking the first light beam on the retroreflective target.

Abstract: A laser tracker system and method of operating the laser tracker system is provided. The method includes providing a mobile computing device coupled for communication to a computer network. Identifying with the mobile computing device at least one laser tracker device on the computer network, the at least one laser tracker device including a first laser tracker device. The mobile computing device is connected to the first laser tracker device to transmit signals therebetween via the computer network in response to a first input from a user. One or more control functions are performed on the first laser tracker device in response to one or more second inputs from the user, wherein at least one of the one or more control functions includes selecting with the mobile computing device a retroreflective target and locking the first light beam on the retroreflective target.

Abstract: A method for breeding a virtual pet is provided, including: displaying a mating market interface, the mating market interface including virtual pets in a mating state; selecting a paternal virtual pet from the virtual pets in the mating state via the mating market interface according to a first operation; displaying a pet breeding interface, the pet breeding interface including a paternal pet field and a maternal pet field, and the paternal virtual pet having a first pet image being displayed in the paternal pet field; adding a maternal virtual pet having a second pet image to the maternal pet field according to a second operation; and displaying a breeding result interface comprising a filial virtual pet when breeding succeeds, the filial virtual pet having a third pet image generated based on a genetic inheritance rule according to the first pet image and the second pet image.

Abstract: An obtaining method for image coordinates of a position invisible to a camera, a calibration method and a system are disclosed. A first color image and corresponding depth image of a position to be measured invisible to a main camera are obtained from a depth camera. The depth camera is positioned so that the position to be measured is within a field of view of the depth camera. Three-dimensional coordinates of the position to be measured are extracted from the first color image and corresponding depth image. And the three-dimensional coordinates of the position to be measured are converted into the required image coordinates of the position to be measured by a translation matrix and a rotation matrix for converting a depth camera coordinate system into a main camera coordinate system. The translation matrix and the rotation matrix are determined by calibration between the main camera and the depth camera.

Abstract: A method and an apparatus for generating a three-dimensional point cloud image, a computer device and a storage medium. The method comprises: detecting three-dimensional shape coordinates of a three-dimensional object in an infrared camera coordinate system; detecting three-dimensional marker coordinates of the marker set in a marker measurement coordinate system at the same time; obtaining, according to a pre-stored first conversion relationship and a second conversion relationship parameter, three-dimensional color coordinates in the infrared camera coordinate system on the basis of the three-dimensional marker coordinates in the marker measurement coordinate system; and generating a three-dimensional point cloud image of the three-dimensional object in the infrared camera coordinate system by combining the three-dimensional shape coordinates and the three-dimensional color coordinates of the three-dimensional object in the infrared camera coordinate system.

Abstract: A method for displaying a virtual pet is provided. The method includes: determining a target virtual pet to-be-displayed in an application program; obtaining first information of the target virtual pet from a server, the first information being stored on a blockchain system and corresponding to the target virtual pet; and displaying a first display interface associated the target virtual pet, the first display interface including the first information of the target virtual pet.

Abstract: A method for trading a virtual pet commodity is provided, performed by a server providing backend support for an application program, the application program being provided with virtual pets, and at least one pet image of each of the virtual pet being generated based on a genetic inheritance rule. The method includes: receiving a purchase request transmitted by a first terminal; obtaining first verification information according to the purchase request, the first verification information being information stored in a blockchain system; and transferring ownership of the first pet commodity from a second account to a first account when the first verification information indicates that the purchase request is valid.

Abstract: A laser tracker system and method of operating the laser tracker system is provided. The method includes providing a mobile computing device coupled for communication to a computer network. Identifying with the mobile computing device at least one laser tracker device on the computer network, the at least one laser tracker device including a first laser tracker device. The mobile computing device is connected to the first laser tracker device to transmit signals therebetween via the computer network in response to a first input from a user. One or more control functions are performed on the first laser tracker device in response to one or more second inputs from the user, wherein at least one of the one or more control functions includes selecting with the mobile computing device a retroreflective target and locking the first light beam on the retroreflective target.

Abstract: A method for displaying a virtual pet is provided. The method includes: determining a target virtual pet to-be-displayed in an application program; obtaining first information of the target virtual pet from a server, the first information being stored on a blockchain system and corresponding to the target virtual pet; and displaying a first display interface associated the target virtual pet, the first display interface including the first information of the target virtual pet.

Abstract: A method for breeding a virtual pet is provided, including: displaying a mating market interface, the mating market interface including virtual pets in a mating state; selecting a paternal virtual pet from the virtual pets in the mating state via the mating market interface according to a first operation; displaying a pet breeding interface, the pet breeding interface including a paternal pet field and a maternal pet field, and the paternal virtual pet having a first pet image being displayed in the paternal pet field; adding a maternal virtual pet having a second pet image to the maternal pet field according to a second operation; and displaying a breeding result interface comprising a filial virtual pet when breeding succeeds, the filial virtual pet having a third pet image generated based on a genetic inheritance rule according to the first pet image and the second pet image.

Abstract: A laser tracker system and method of operating the laser tracker system is provided. The laser tracker system includes a laser tracker device and a mobile computing device, each coupled for communication to a computer network. The mobile computing device includes processors that are responsive to computer instructions to perform a method. The method includes identifying the laser tracker device on the computer network. Selecting the first laser tracker device. Connecting to the laser tracker device to transmit signals therebetween via the computer network in response to an input from a user. Then causing the laser tracker device to perform one or more control functions in response to one or more second inputs from the user, wherein at least one of the one or more control functions includes selecting with the mobile computing device a retroreflective target and locking a light beam on the retroreflective target.

Abstract: A laser tracker system and method of operating the laser tracker system is provided. The laser tracker system includes a laser tracker device and a mobile computing device, each coupled for communication to a computer network. The mobile computing device includes processors that are responsive to computer instructions to perform a method. The method includes identifying the laser tracker device on the computer network. Selecting the first laser tracker device. Connecting to the laser tracker device to transmit signals therebetween via the computer network in response to an input from a user. Then causing the laser tracker device to perform one or more control functions in response to one or more second inputs from the user, wherein at least one of the one or more control functions includes selecting with the mobile computing device a retroreflective target and locking a light beam on the retroreflective target.

Abstract: The invention relates to a pharmaceutical composition comprising i) ketotifen or an analog thereof and ii) a chemotherapeutic drug subject to multi-drug resistance by P-gp, such as doxorubicin or an analog thereof. The pharmaceutical composition is useful for treating cancer. The pharmaceutical composition is also useful for i) preventing or treating multi-drug resistance in a subject or ii) preventing a chemotherapeutic drug subject to multi-drug resistance by P-gp induced cardiac tissue damage in a subject, such as doxorubicin or an analog thereof. The invention relates to a pharmaceutical composition comprising i) ketotifen or an analog thereof and ii) a chemotherapeutic drug subject to multi-drug resistance by P-gp, such as doxorubicin or an analog thereof. The pharmaceutical composition is useful for treating cancer.