Abstract: In some embodiments, a method receives a data structure for an auto decision process for predicting a value for a decision feature of a plurality of features. The data structure is generated using a decision aware splitting process that splits a node in the data structure using the decision feature and a metric-based process that splits other nodes of the data structure by evaluating features in the plurality of features using a metric. Feature values are determined for a combination of features for a playback session. The method evaluates the data structure using the combination of features to determine a plurality of prediction values for a plurality of feature values of the decision feature. The prediction values are used to generate a decision for the playback session by selecting a feature value in the plurality of feature values based on the plurality of prediction values.

Abstract: A PSG and PSA configuration optimization method and a polarizing and analyzing system, wherein the method comprises the following steps: adjusting an instrumental matrix W of a PSG and an instrumental matrix A of an PSA to minimize a weighted variance EWV of the instrument matrices of the PSG and the PSA, so as to realize optimization for Gaussian noise; and a sum of each row of the instrumental matrix W of the PSG and the instrumental matrix A of the PSA is 0, so that an estimated variance caused by Poisson noise is independent of the sample, and the estimated variance reaches a minimum value. The present disclosure can suppress the noise to the maximum extent and make the law of the noise independent from the sample, and the distribution law of the noise is the same regardless of the sample to be measured.

Abstract: A video playing method for synchronously displaying AR information includes capturing a video code stream containing AR information by an AR camera; extracting the AR information from the video code stream frame by frame, generating subtitle information during said extraction, and storing the subtitle information as a subtitle file; storing the video code stream after said extraction as a video file; combining the subtitle file with the video file to create a general video file; and parsing and playing the general video file on a third-party player. The video with AR information captured by an AR camera can be parsed by a third-party player and synchronously displayed along with the video play.

Abstract: The present invention provides a camera link method and a computer storage medium. The method includes acquiring a real-time video of a camera, selecting a point in the real-time video as a linked point and acquiring coordinates of the linked point; designating a linked camera; and acquiring a real-time video of the linked camera, and turning on the real-time video of the linked camera or positioning the linked camera to the linked point. According to the camera link method and the computer storage medium of the present invention, linkage among multiple cameras, and automatically linkage to multiple dome cameras can be achieved, and the application range is wide.

Abstract: A guard route security method and a computer readable storage medium are provided. The method includes receiving positioning information of a security guided vehicle and generating a security guided vehicle track; searching a low-position camera and a high-position camera around the security guided vehicle according to the positioning information, and feeding back searching information; and turning on the high-position camera to trace and monitor the security guided vehicle according to the searching information. According to the guard route security method, the security guided vehicle is shot and monitored at a high-position camera monitor to achieve a follow-up control of the security guided vehicle with the high-position cameras, which is convenient for the security guards to quickly learn the surrounding environment and carry out security work for guard route more intuitively and effectively.

Abstract: A video map engine system includes a configuration management client, multiple video equipments, a video access server, an augmented reality processor, and an augmented reality client. The parameters of the video equipments includes azimuth angle P, vertical angle T and zoom factor Z of the video equipment, the augmented reality client is adapted for calculating the location where the augmented reality tag is presented in the real-time video according to the values of P, T, Z and the target location carried by the augmented reality tag, and presenting the augmented reality tag on the corresponding location of the real-time video. Therefore, the real-time video is served as the base map, and the augmented reality tag is presented on the base map, thereby achieving a video map effect.

Abstract: A video map engine system includes a configuration management client, multiple video equipments, a video access server, an augmented reality processor, and an augmented reality client. The parameters of the video equipments includes azimuth angle P, vertical angle T and zoom factor Z of the video equipment, the augmented reality client is adapted for calculating the location where the augmented reality tag is presented in the real-time video according to the values of P, T, Z and the target location carried by the augmented reality tag, and presenting the augmented reality tag on the corresponding location of the real-time video. Therefore, the real-time video is served as the base map, and the augmented reality tag is presented on the base map, thereby achieving a video map effect.