任意形状图象对象的变换编码方法是MPEG -4视频编码实现的核心技术之一。
Coding of arbitrarily shaped image is one of the core techniques in MPEG 4 video compression. One approach to transform an arbitrarily shaped image region is addressed.
图像压缩是数字图像处理中最重要的关键技术之一，传统的图像压缩方法有预测编码、变换编码和矢量量化等。
Image compression is one of the most important key techniques in image processing. Traditional compression methods include prediction coding, transform coding and vector quantization (VQ).
图像压缩编码长期以来利用离散余弦变换(DCT)作为变换编码的主要技术。
The DCT was used as the main method of image transform coding for a long time.
详尽的阐述了常用的压缩技术：预测编码和变换编码。
Introduce some common technique of video compressing, just like forecasting coding and switching coding.
目前的视频压缩标准多数采用DCT变换编码和运动补偿 技术， 运动估计约占整个编码时间的60%、 运动补偿约占10%。
Most current video compression standards employ DCT transform and motion compensation, which approximately consumes 10% of encoding time, while motion estimation consumes about 60%.
目前的视频压缩标准多数采用DCT变换编码和运动补偿 技术， 运动估计约占整个编码时间的60%、 运动补偿约占10%。
Most current video compression standards employ DCT transform and motion compensation, which approximately consumes 10% of encoding time, while motion estimation consumes about 60%.
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