中文说明:应用背景关键技术PSNR是最常用的衡量有损压缩编解码重建的质量(例如,图像压缩)。在这种情况下的信号是原始数据,和噪声是由压缩引入的错误。当比较压缩,峰值信噪比是一个近似 ; ;对重建质量感知。虽然有较高的信噪比一般表明重建是更高的质量,在某些情况下,它可能不。一个人必须非常小心,以该指标的有效范围;它是完全有效的当它被用于比较同一编解码结果(或编解码器类型)和相同的内容。
English Description:
Application backgroundPeak signal-to-noise ratio, often abbreviated PSNR, is an engineering term for the ratio between the maximum possible power of a signal and the power of corrupting noise that affects the fidelity of its representation. Because many signa