Error concealment apparatus and method
AssigneeSamsung Electronics Co., Ltd.
InventorsNyeong-kyu Kwon, Kwang-yuel Ryu, Min-kyu Park
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Abstract
An error concealment apparatus and method that can selectively use error concealment techniques according to an error occurrence rate is disclosed. The error concealment apparatus includes an error detection unit for detecting errors occurring in video frames, first and second error concealment units for concealing the detected errors, and a video output unit for selectively outputting the video frames of which the errors have been concealed by the first and second error concealment units according to the results of error detection.
Claims14
An error concealment apparatus comprising:
- an error detection unit which detects errors occurring in video frames;
- first and second error concealment units which conceal the detected errors and output video frames of which the errors have been concealed;
- and
- a video output unit which selectively outputs one of video frames of which the errors have been concealed by the first error concealment unit and video frames of which the errors have been concealed by the second error concealment unit according to the results of error detection;
- wherein the error detection unit compares a counted value of macro blocks where the errors have occurred in the video frames with a predetermined counted value.
An error concealment method comprising:
- detecting errors occurring in video frames;
- concealing the detected errors by using at least a first error concealment technique and a second error concealment technique;
- and
- outputting video frames of which the errors have been concealed by one of the first error concealment technique and the second error concealment technique according to the results of error detection;
- wherein the detecting the errors comprises comparing a counted value of macro blocks where the errors have occurred in the video frames with a predetermined counted value.
Dependencies are inferred from the claim text.