一种低码率快速视频编码方案

一、前言图像信息尤其是视频信息其信息量巨大而难以得到有效及时的处理,特别是在低码率信道更显突出。因此人们正致力于研究新的方法来解决,如结合小波变换、基于2-D DCT(二维离散余弦变换)运动补偿及帧间顶测、小波与分形相结合、3-D DCT等。离散余弦     

一种基于三维小波变换的枧频图像编码方法

In this paper,We propose an improved zerotree coding scheme based on three dimensional wavelet transform. The wavefor coefficients are quantized with different quanttzation matrices using human visual system (HVS), and then are encoded with an improved zerotree coding algorithm. Experi-ments prove that this method is very efficient.     

一种基于三维小波变换的视频图像编码方法

In this paper,We propose an in:proved zerotree coding scheme based on three dimensionalwavelet transform. The wavelet coefficients are quantized with different quantization matrices using hu-man visual system(HVS),and then are encoded with an improved zerotree coding algorithm. Experi-ments prove that this method is very efficient.