Abstract: The present disclosure discloses a method for presenting a list of access points and a device thereof. The method includes: acquiring at least one identifiers of at least one wireless access points; determining whether at least one predetermined identifier exists among the identifiers of the wireless access points, wherein the predetermined identifier is an identifier corresponding to an accessing record stored in the terminal, and the accessing record is for indicating historical information that the terminal has ever accessed the wireless access point corresponding to the predetermined identifier; and if a result of the determining is that the at least one predetermined identifier exists, presenting the at least one predetermined identifier in the list of access points according to the accessing record corresponding to the at least one predetermined identifier.

Abstract: The present disclosure discloses a method for presenting a list of access points and a device thereof. The method includes: acquiring at least one identifiers of at least one wireless access points; determining whether at least one predetermined identifier exists among the identifiers of the wireless access points, wherein the predetermined identifier is an identifier corresponding to an accessing record stored in the terminal, and the accessing record is for indicating historical information that the terminal has ever accessed the wireless access point corresponding to the predetermined identifier; and if a result of the determining is that the at least one predetermined identifier exists, presenting the at least one predetermined identifier in the list of access points according to the accessing record corresponding to the at least one predetermined identifier.

Abstract: A traffic information sensor system includes an image acquisition device to generate video images of a traffic scene. The system also includes an image detection device to extract traffic information from the video images in connection with the lane position information of the traffic scene. The system also includes an information transfer device to transmit the extracted traffic information instead of the video images to a traffic management center. A traffic information detection method and system is also described.

Abstract: A packet loss metric calculation system for a video stream includes an intercepting module to intercept a plurality of adjacent image frames in the video stream. A sampling module samples a plurality of pixel blocks in predetermined locations in each of the intercepted image frames. A detecting module detects the change of each of the sampled blocks over all intercepted image frames to determine whether there is an image quality decline in the block. A packet loss metric generator generates the packet loss metric based on the number of blocks detected by the detecting module to have image quality decline. Furthermore, a method for calculating packet loss metric of a video stream is also described.

Abstract: A traffic information sensor system includes an image acquisition device to generate video images of a traffic scene. The system also includes an image detection device to extract traffic information from the video images in connection with the lane position information of the traffic scene. The system also includes an information transfer device to transmit the extracted traffic information instead of the video images to a traffic management center. A traffic information detection method and system is also described.