Adaptive Spatiotemporal Video Denoise

An improved method for transmission of a source video from a first location to a second location, wherein there is limited transmission bandwidth available between the first location and the second location, wherein the source video has a plurality of sequentially-ordered frames of images and has an original spatial sample rate, the source video is encoded to create a compressed video, the compressed video is received at the second location and then decoded and decompressed to create an output video, and the output video is then displayed to one or more recipients, the improved method comprising:

• Encoding the source video to create the compressed video includes the steps of:
• (i) applying anti-alias, low-pass filtering to the source video;
• (ii) downsampling the low-pass filtered video to a reduced spatial sample rate lower than the original spatial sample rate, and then (iii) compressing the downsampled video using a lossy codec so that the compressed video has a further reduced spatial sample rate and is smaller in size than the source video;
• and,
• After transmitting the compressed video from the first location to the second location, decoding the compressed video includes the steps of:
• (i) decompressing the compressed video using the lossy codec, (ii) upsampling the decompressed video, and then (iii) applying photometric warp superresolution processing to each frame of the upsampled video to create the output video, wherein the output video has a resolution less than the source video,
• further comprising applying adaptive spatiotemporal noise filtering to each frame of the source video prior to the step of encoding to improve the sharpness of the output video.