块截短编码(BTC)是一种快速有效的有损图像编码技术。
Block truncation coding (BTC) is an efficient and fast lossy image coding technique.
此判别法表明，相邻编码帧宏块条码率的频域互相关能够有效反映图像活动性变化的特点。
The correlation of adjacent slices bitrates in frequency domain can effectively reflect the activity of the motion pictures.
实验结果表明，这种方法大大提高了编码速度，而且能有效地压缩图像数据。
Experimental results indicate that images could be significantly compressed with our method, while encoding time is greatly reduced.
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