Invention Grant
US08934540B2 Video compression using multiple variable length coding methods for multiple types of transform coefficient blocks
有权
使用多种可变长度编码方法对多种类型的变换系数块进行视频压缩
- Patent Title: Video compression using multiple variable length coding methods for multiple types of transform coefficient blocks
- Patent Title (中): 使用多种可变长度编码方法对多种类型的变换系数块进行视频压缩
-
Application No.: US12840080Application Date: 2010-07-20
-
Publication No.: US08934540B2Publication Date: 2015-01-13
- Inventor: Wen-hsiung Chen , Yian Xu
- Applicant: Wen-hsiung Chen , Yian Xu
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: H04N7/30
- IPC: H04N7/30 ; H03M7/40 ; H04N19/176 ; H04N19/134 ; H04N19/46 ; H04N19/13
Abstract:
Classifying a series of quantized transform coefficients of a block of image data into one of a pre-defined plurality of classes for entropy coding, and entropy coding the block. A class is defined by at least the size of the block and typically but not necessarily one or more other factors. The classified series is coded by one of a set of pre-defined entropy coding methods, e.g., variable length coding methods for the pre-defined classes.
Public/Granted literature
Information query
