公开(公告)号：EP1667461A3

公开(公告)日：2010-12-01

申请号：EP05110313.3

申请日：2005-11-03

Applicant: STMicroelectronics Srl

Inventor： Bruna, Arcangelo Ranieri ,  Celetto, Luca

IPC: H04N7/26

CPC classification number: H04N19/124 ,  H04N19/137 ,  H04N19/14 ,  H04N19/176 ,  H04N19/194 ,  H04N19/45 ,  H04N19/61

Abstract: Described herein is a method for block coding of a flow (I) of data, in particular video data, via a compression operation (100; 200; 300) that comprises: applying to input-data blocks (B, CB; MB) in said data flow (I) a discrete-cosine-transform (DCT) operation (120; 220) and a quantization operation (130; 230) to produce compressed-data blocks (DB); subjecting said compressed-data blocks (DB) to a coding operation (235, 240) to obtain compressed output flows (O); and moreover applying an inverse-quantization operation (190; 290) and an inverse-discrete-cosine-transform (IDCT) operation (195; 295) on said compressed-data blocks (DB) to obtain reconstructed blocks (RB).
The method envisages controlling (1000; 1100) generation of mismatch errors from said input-data blocks (B, CB; MB) via the operations of:
- detecting from said input-data blocks (B, CB; MB) and compressed-data blocks (DB) data blocks (DB; MB) that are liable to cause mismatch errors; and
- modifying said block (DB; MB) that are liable to cause mismatch errors prior to said coding operation (235, 240).

公开(公告)号：EP2204982A1

公开(公告)日：2010-07-07

申请号：EP09177699.7

申请日：2009-12-02

Applicant: STMicroelectronics Srl

Inventor： Spampinato, Giuseppe ,  Bruna, Arcangelo Ranieri ,  Castorina, Alfio ,  Capra, Alessandro

IPC: H04N5/232 ,  H04N5/14

CPC classification number: H04N9/04 ,  H04N5/144 ,  H04N5/145 ,  H04N5/23248

Abstract: A digital image processing system and method for removing motion effects from images of a video sequence, and generating corresponding motion compensated images.

Abstract translation: 用于从视频序列的图像去除运动效应，并产生相应的运动补偿的图像的数字图像处理系统和方法。