Technical scheme for improving image quality of low-bit-rate video encoder

The invention discloses a technical scheme for improving the image quality of a low-bit-rate video encoder, and the method comprises the steps: carrying out n-time downsampling on a to-be-processed image, forming a reduced image, carrying out the coding on the reduced image through the video encoder, and obtaining a compressed image; decoding the compressed image by using a decoder to obtain a decompressed image; and finally, carrying out n-time row interpolation processing on the decompressed image, and outputting the processed image. According to the image processing method, a down-samplingstep is added at the front end of a video encoder, so that the total number of pixels to be encoded is reduced, and the encoding bit number of each pixel is increased; an interpolation link is added at the rear end of the video decoder, a decoded output result is amplified and restored in a high-quality mode, and the quality of an output image is improved. 本发明公开一种改善低码率视频编码器图像质量的技术方案，对待处理图像进行n倍下采样操作，形成缩小后的图像，利用视频编码器对缩小后的图像