公开(公告)号：US20040146111A1

公开(公告)日：2004-07-29

申请号：US10702220

申请日：2003-11-05

Applicant: STMICROELECTRONICS SA

Inventor： Denis Dutey ,  Nikola Cornij

IPC: H04N007/12

CPC classification number: H04N21/2662 ,  H04N5/4401 ,  H04N5/45 ,  H04N5/85 ,  H04N7/012 ,  H04N9/8042 ,  H04N9/8227 ,  H04N19/112 ,  H04N19/12 ,  H04N19/156 ,  H04N19/172 ,  H04N19/40 ,  H04N19/46 ,  H04N21/25808 ,  H04N21/4312 ,  H04N21/4348 ,  H04N21/4355 ,  H04N21/4884

Abstract: A method of transcoding a sub-picture unit each comprising encoded sub-picture pixel data including sub-picture lines separated into at least a first field and a second field as well as a set of display control commands associated with the sub-picture pixel data, comprises the step of pre-processing (53) the display control commands to prepare transcoding to frame format. Encoded lines of said top and bottom fields are then merged (56,73) into a single encoded frame and the display control commands are modified (56,74) according to changes in encoded sub-picture pixel data before outputting.

Abstract translation: 一种副图像单元的代码转换方法，每个子图像单元包括被编码的子图像像素数据，该子图像像素数据包括分成至少第一场和第二场的子图像线以及与子图像像素数据相关联的一组显示控制命令 包括对显示控制命令进行预处理（53）以准备对帧格式的转码的步骤。 然后，所述顶部和底部场的编码行被合并（56,73）到单个编码帧中，并且根据编码的子图像像素数据在输出之前的变化来修改显示控制命令（56,74）。