Invention Grant
- Patent Title: Method for improving compression efficiency of distributed source coding using intra-band information
- Patent Title (中): 使用带内信息提高分布式源编码压缩效率的方法
-
Application No.: US14102609Application Date: 2013-12-11
-
Publication No.: US09307257B2Publication Date: 2016-04-05
- Inventor: Shantanu Rane , Robert A. Cohen , Anthony Vetro , Kazuo Sugimoto
- Applicant: Mitsubishi Electric Research Laboratories, Inc.
- Applicant Address: US MA Cambridge
- Assignee: MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC.
- Current Assignee: MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC.
- Current Assignee Address: US MA Cambridge
- Agent Dirk Brinkman; Gene Vinokur
- Main IPC: G06K9/00
- IPC: G06K9/00 ; H04N19/30 ; H04N19/46 ; H04N19/34

Abstract:
In a decoder, a desired image is estimated by first retrieving coding modes from an encoded side information image. For each bitplane in the encoded side information image, syndrome bits or parity bits are decoded to obtain an estimated bitplane of quantized transform coefficients of the desired image. A quantization and a transform are applied to a prediction residual obtained using the coding modes, wherein the decoding uses the quantized transform coefficients of the encoded side information image, and is based on previously decoded bitplanes in a causal neighborhood. The estimated bitplanes of quantized transform coefficients of the desired image are combined to produce combined bitplanes. Then, an inverse quantization, an inverse transform and a prediction based on the coding modes are applied to the combined bitplanes to recover the estimate of the desired image.
Public/Granted literature
- US20150085923A1 Method for Improving Compression Efficiency of Distributed Source Coding Using Intra-Band Information Public/Granted day:2015-03-26
Information query