Abstract: The present invention discloses a pixel structure of a stacked image sensor and a preparation method thereof, by bonding processes to stack a first silicon wafer to a third silicon wafer up and down; wherein, a first photodiode array is set on the first silicon wafer located in middle, and a second photodiode array is provided on the second silicon wafer located above, and the surface of each the second photodiode in the second photodiode array is aligned and bonded correspondingly with the surface of each the first photodiode in the first photodiode array, so as to form a chip of the pixel structure of the stacked image sensor with a very deep junction depth, which is particularly suitable for near-infrared sensitization, and can effectively improve quantum efficiency in near-infrared wave bands; and by adopting a backlight technology, incident lights irradiating to photodiodes are not affected by the metal interconnect layers, both of sensitive and fill factor are high, especially for small-size pixels, whi

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.