8results about How to "Solve the jump" patented technology

The application discloses a three-dimensional space anchor point generation method and device, equipment and medium, and relates to the technical field of augmented reality, which comprises the following steps: acquiring a plurality of target two-dimensional pointing positioning results generated by a user through different indication methods in real time, and converting the target two-dimensional pointing positioning results into two-dimensional pixel coordinates on an imaging plane; based on the current camera pose of a local preset camera, the two-dimensional pixel coordinates are back-projected into target three-dimensional space rays in a preset three-dimensional coordinate system; the intersection point operation is performed on the target three-dimensional space rays and environmental geometric information to obtain corresponding three-dimensional coordinate candidate points and corresponding uncertainties; and based on the uncertainties, the three-dimensional coordinate candidate points and historical three-dimensional space anchors are weighted and fused to obtain target three-dimensional space anchors. Through back-projection of the pixel coordinates into space rays in the preset three-dimensional coordinate system based on the camera pose, under the condition of meeting the tracking effectiveness, the virtual content jitter caused by parallax is significantly reduced.

This invention discloses a method for fixed-delay playback and seamless switching of live streams based on absolute time stamps, comprising the following steps: S1: Receive an HTTP-FLV data stream, append an absolute time stamp (absolute_time) to each Tag object, and store the Tag objects in a circular buffer queue; S2: Determine the playback time and locate the Tag object to be sent based on the absolute time stamp (absolute_time); S3: Rewrite the timestamp of the Tag object to be sent, encapsulate it, and send it to the player client; S4: Upon receiving a switching command to switch the current playback stream to the target playback stream, seamlessly switch to the target playback stream for playback. This invention's method for fixed-delay playback and seamless switching of live streams based on absolute time stamps can achieve precise fixed-delay playback of live streams and seamless switching between multiple live sources without full-stream transcoding.

The application provides a monocular video-based motion capture optimization method and a model training method, and relates to the technical field of computers. The monocular video-based motion capture optimization method comprises the following steps: inputting a monocular video into a touch-down detection model to obtain a touch-down detection result for indicating a touch-down probability of a portrait foot; obtaining three-dimensional motion first data of the portrait according to the monocular video, and then obtaining a foot trajectory of the portrait; performing touch-down optimization on the foot trajectory according to the touch-down probability, and performing jitter optimization on the touch-down optimized foot trajectory; and reconstructing the three-dimensional motion first data through a reverse dynamics algorithm according to the jitter optimized foot trajectory to obtain three-dimensional motion second data of the portrait. The method of the application solves the problem that the accuracy of three-dimensional motion data reconstructed through a reverse dynamics algorithm is reduced due to the possible penetration and jitter of the portrait foot in the three-dimensional reconstruction process.

Embodiments of the present application provide a report data processing method, device and equipment and a storage medium, at least applied to the field of block chain, wherein the method comprises: performing log analysis on newly added log information in a current time period to obtain at least one incremental statistical data of a target business in a first time dimension; obtaining at least one historical statistical data of the target business in a preset historical time period before the current time period; the historical statistical data is statistical data in a second time dimension, and a time interval corresponding to the second time dimension is greater than a time interval corresponding to the first time dimension; performing aggregation processing on all historical statistical data with the second time dimension and all incremental statistical data with the first time dimension to obtain an aggregation result of the target business in the current time period; and updating the aggregation result to a business report corresponding to the target business. Through the present application, the data jump problem in report statistics can be solved, and the data quality of the report service is improved.

This invention relates to a throttling manifold and its control method for controlling oil well blowout. The manifold includes an internal control line, a five-way connector, a first four-way connector, a second four-way connector, a third four-way connector, a fourth four-way connector, a fifth four-way connector, and a sixth four-way connector. The throttling manifold is a novel system composed of a conventional throttling manifold, two manual throttling valves, six flat valves, two four-way connectors, and a flanged short section. This throttling manifold has a dual-channel structure, with each channel controlled by a manual throttling valve and a manual flat valve, and a direct discharge in the middle. This invention significantly improves the safety factor of on-site operations, meets energy-saving, emission-reduction, and environmental protection requirements, effectively solves construction problems during gas well depressurization, well control, and water absorption index measurement, and has strong practicality and operability, extending the service life of the manifold and improving its throttling effect.

The utility model discloses a communication case friction welding auxiliary tool which comprises a tool base, a supporting frame body is arranged in the middle of the tool base, and the upper portion of the supporting frame body is used for supporting a communication case. A first side jacking device used for jacking the front side of the communication machine shell and a first pressing device used for pressing the front end of the communication machine shell downwards are installed at the front end of the tool base. A second side jacking device used for jacking the left side of the communication machine shell and a second pressing device used for pressing the left end of the communication machine shell downwards are installed at the left end of the tool base. A third side jacking device used for jacking the rear side of the communication machine shell and a third pressing device used for pressing the rear end of the communication machine shell downwards are installed at the rear end of the tool base. According to the utility model, lateral displacement or deformation of the communication casing can be prevented, and the problem that the communication casing jumps due to vibration can be avoided.

This utility model discloses a shuttleless shuttle frame assembly, belonging to the field of plastic weaving, which solves the problem of instability during the circular motion of a shuttleless shuttle. The technical solution mainly includes a shuttleless shuttle, an upper frame, a lower frame, and support rollers connecting the upper and lower frames. Multiple support rollers are distributed circumferentially along the frame assembly, forming a circular track for the shuttleless shuttle to run on. The outer circumferential side of the support rollers has a concave limiting groove with an upper limiting surface and a lower limiting surface. The shuttle bottom plate of the shuttleless shuttle has protruding limiting protrusions that extend into the limiting grooves and contact the upper and lower limiting surfaces respectively to achieve vertical limiting. There is a gap between the bottom surface of the shuttle bottom plate on both sides of the limiting protrusions and the outer circumferential side of the support rollers. This utility model is mainly used to effectively constrain the vertical displacement of the shuttle and improve operational stability. This utility model also provides a shuttleless circular loom using the above-mentioned shuttleless shuttle frame assembly.

The application discloses a geological radar detection water conservancy and hydropower tunnel backfill grouting quality operation platform and belongs to the technical field of geological detection. The operation platform comprises an operation frame, a central shaft arranged on the operation frame, an intermediate cylinder coaxially connected with the central shaft, a radar antenna arranged in the middle part of the intermediate cylinder, and a damping assembly connecting the central shaft to the operation frame. The outer side of the intermediate cylinder is coaxially provided with a protective cylinder. The protective cylinder comprises arc-shaped protective plates, flexible connecting belts, first outer rods, first inner rods, first damping springs and rotating rings. The arc-shaped protective plates are annularly and uniformly distributed on the outer side of the intermediate cylinder. The arc-shaped protective plates are connected in an integrated manner through the flexible connecting belts. The rotating rings are rotatably arranged on the outer side of the intermediate cylinder. The device can effectively protect the geological radar when the radar is smoothly detected, effectively avoids the radar jumping problem caused by interference, and enables the detection process to be smoothly performed.