Method and apparatus of reducing compression noise in digital video streams

A method for noise reduction of a video stream, the method comprising:

• identifying ringing noise in a first image included in the video stream;
• identifying a block pattern in the image included in the video stream, wherein identifying the block pattern includes identifying block patterns of a predetermined size and block patterns of an arbitrary size;
• and
• generating a second image based on the first image, the identified ringing noise, and the block pattern.

A device for noise reduction of a video stream, the device comprising:

• a processor configured to:
• identify ringing noise in a first image included in the video stream;
• identify a block pattern in the image included in the video stream, wherein identifying the block pattern includes identifying block patterns of a predetermined size and block patterns of an arbitrary size;
• and
• generate a second image based on the first image, the identified ringing noise, and the block pattern.

A computer-readable storage medium comprising instructions executable by a processor of an apparatus for noise reduction of a video stream, the instructions causing the apparatus to:

• identify ringing noise in a first image included in the video stream;
• identify a block pattern in the image included in the video stream, wherein identifying the block pattern includes identifying block patterns of a predetermined size and block patterns of an arbitrary size;
• and
• generate a second image based on the first image, the identified ringing noise, and the block pattern.

A device for noise reduction of a video stream, the device comprising:

• means for identifying ringing noise in a first image included in the video stream;
• means for identifying a block pattern in the image included in the video stream, wherein identifying the block pattern includes identifying block patterns of a predetermined size and block patterns of an arbitrary size;
• and
• means for generating a second image based on the first image, the identified ringing noise, and the block pattern.