In Chapter three, it expatiates the modules in the video decoder separately, including Variable length decoding(VLD), Inverse scan(IS)/Inverse quantization(IQ), Inverse DCT(IDCT), and Motion compensation(MC).

• 在第三章中,本文分模块阐述了视频解码器各模块功能的实现,包括变长码解码(VLD)、反扫描(IS)和反量化(IQ)、反离散余弦变换(IDCT)、运动补偿(MC)等。