Invention Grant
US09185429B1 Video encoding and decoding using un-equal error protection 有权
视频编码和解码使用不相等的错误保护

Video encoding and decoding using un-equal error protection
Abstract:
Systems, apparatuses and methods for encoding and decoding a video stream having a plurality of frames are disclosed. When encoding, for example, blocks are selected in spiral fashion until contiguous blocks of at least a central section of the frame are selected. The selected blocks are encoded in an order in which they were selected. A first level of error protection is applied to encoded blocks within the central section. A second, different level of error protection is applied to encoded blocks outside the central section. By using a spiral scan and selective error protection, blocks most likely to have information of interest to a viewer are identified and can be encoded and error-protected to provide better image quality in the area of interest when decoded.
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