关键词: JPEG2000, 位平面编码, 字级顺序, 编码通道预测, 单窗口

Abstract: Bit-Plane Coding（BPC） is an important part of EBCOT which belongs to JPEG2000 coder.In order to improve the efficiency of BPC，this paper presents an improved parallel hardware architecture used to realize word-level bit-plane coding，and studies the parallel processing technology of pass prediction and context formation.It can be finished that all bits of one stripe are coded in parallel during one clock cycle.When sample coefficients are coded one after another，there code passes included in each bit-plane are scanned in one time.This architecture is realized by ModelSim and synthesized by TSMC.Experimental result demonstrates that the proposed architecture can provide high-speed data processing and efficient hardware cost reducing.It is fit for real-time image and video application.

Key words: JPEG2000, bit-plane coding, word-level sequential, coding pass prediction, single window