公开(公告)号：US08502922B2

公开(公告)日：2013-08-06

申请号：US13279360

申请日：2011-10-24

申请人： Hsiao-En Chang ,  Jian-De Jiang ,  Chun Wang ,  Tsui-Chin Chen

发明人： Hsiao-En Chang ,  Jian-De Jiang ,  Chun Wang ,  Tsui-Chin Chen

IPC分类号： H04N7/01

CPC分类号： H04N7/0115

摘要： A multimedia device and a play mode determination method of the same are provided. The multimedia device includes a frame difference calculation unit, a global threshold determination unit and a play mode determination unit. The frame difference calculation unit calculates the frame difference between two continuous frames to obtain a global variation. The global threshold determination unit determines a film mode threshold corresponding to a film mode and a video mode threshold corresponding to a video mode according to a current frame of the two frames and a previous global variation, and selects a global threshold from the film mode threshold and the video mod threshold. The selected threshold is smaller than the film mode threshold. The play mode determination unit compares the global variation with the global threshold, and enables the multimedia device to enter one of the film mode and the video mode according to the comparison result.

摘要翻译： 提供一种多媒体装置及其播放模式确定方法。 多媒体设备包括帧差计算单元，全局阈值确定单元和播放模式确定单元。 帧差计算单元计算两个连续帧之间的帧差以获得全局变化。 全局阈值确定单元根据两帧的当前帧和先前的全局变化来确定与电影模式和视频模式阈值相对应的电影模式阈值和视频模式阈值，并从电影模式阈值中选择全局阈值 和视频模式阈值。 所选阈值小于胶片模式阈值。 播放模式确定单元将全局变化与全局阈值进行比较，并且使得多媒体设备能够根据比较结果进入电影模式和视频模式之一。