Abstract: A picture encoding/decoding method and a related apparatus are provided. The picture decoding method includes obtaining a current picture from a video, the current picture being segmented using random access points into multiple video segments supporting a random access function; selecting, from a knowledge base, K reference pictures of the current picture, wherein at least one reference picture in the knowledge base does not belong to a random access segment in which the current picture is located, the random access segment comprising a picture sequence arranged in a decoding order from a closest random access point before the current picture to a closest random access point after the current picture; and decoding the current picture according to the K reference pictures.

Abstract: A battery latching mechanism is provided. The battery latching mechanism comprises a body member including a battery receiving space and a latch portion adjacent to the battery receiving space, and a battery including a latch. The battery is received in the battery receiving space with the latch engaging with the latch portion.

Abstract: A latching structure for a portable electronic device, the portable electronic device has a touch pen and a housing defined a slot to received the touch pen, the latching structure comprises at least a mounting portion formed on the housing; a least a latching module fixed in the mounting portion; each latching module has a latching element and an elastic element; the latching element is rotationally fixed in the mounting portion and elastically resists against the touch pen by the elastic force of the elastic element. A portable electronic device having the latching structure is also disclosed.