4results about How to "Guaranteed playback quality" patented technology

The deep learning-based video multi-level adaptive compression cross-layer transmission optimization method and system of the application relates to the technical field of video transmission. By designing a compression level selection model based on deep learning, the optimal compression level is output based on the original video data and network environment parameters, and the corresponding compression strategy of the optimal compression level is obtained. A transmission strategy selection model is designed to generate a transmission strategy based on video quality parameters and network environment parameters. A global utility function is defined to calculate the global utility value when the compression strategy and the transmission strategy are assumed to be executed. An optimization objective function is designed, which inputs the compression strategy and the transmission strategy and outputs the optimized compression strategy and the transmission strategy. A condition judgment logic is set to select the final strategy based on the compression strategy and the transmission strategy before and after optimization, thereby achieving global optimization of video compression and transmission.

This invention relates to the field of smart terminal technology and discloses a display device and a display control method. The display device includes a display and a controller configured to: when playing first media data with first media data parameters in a first projection window of a projection interface, in response to a second operation command for playing second media data in a second projection window, acquire second media data parameters of the second media data; if it is determined that the second media data does not meet the projection conditions, stop receiving the first media data and control the display to play the second media data in the second projection window; if it is determined that the second media data meets the projection conditions, control the display to continue playing the first media data in the first projection window and play the second media data in the second projection window. Applying this solution can improve the user's projection experience.

The embodiment of the invention discloses an image coding method and a related device, and the method comprises the steps: obtaining coding period reference information which comprises at least one of reference network information and reference picture information; according to the coding period reference information, determining a target interval corresponding to a target period IDR frame to be coded, the target interval being an interval which should be satisfied between the target period IDR frame and a previous IDR frame; and when the interval between the IDR frame and the previous IDR frame reaches the target interval, encoding the target period IDR frame, and inserting the target period IDR frame into an image frame sequence transmitted to a video decoding end. According to the method, the IDR frame can be flexibly inserted into the image frame sequence, and the video playing quality of a video decoding end is prevented from being influenced by insertion of the IDR frame.

The invention discloses a node bandwidth adjustment method and device, and the method comprises the steps: obtaining playing feedback information, and determining a target node corresponding to the playing feedback information; determining a feedback weight of the target node according to the playing feedback information; acquiring node heartbeat information of a target node, and determining a use weight of the target node; and determining an adjustment weight of the target node according to the feedback weight and the use weight so as to adjust the bandwidth of the target node according to the adjustment weight. The playing feedback information is acquired, the playing feedback condition can be combined with the current node heartbeat information of the target node, the bandwidth use of the target node is considered, the playing feedback condition is also considered, the node bandwidth is dynamically adjusted, and the resources of the target node can be fully utilized on the premise of ensuring the playing quality.