SIGNAL TRANSMISSION DEVICE, SIGNAL TRANSMISSION METHOD, AND PROGRAM

    公开(公告)号:US20190089938A1

    公开(公告)日:2019-03-21

    申请号:US16086647

    申请日:2017-03-17

    申请人: SONY CORPORATION

    IPC分类号: H04N9/804 H04N5/77 H04N1/41

    摘要: The present disclosure relates to a signal transmission device, a signal transmission method, and a program that are capable of reducing the influence of a quantization error. A quantization error notification unit notifies the stage after a bit precision constraint region of a quantization error generated in a quantization processing unit that performs a quantization process on a signal to be transmitted via the bit precision constraint region that is a region where a bit precision constraint occurs. A quantization error reception unit receives the quantization error, and supplies the quantization error to an inverse quantization processing unit that performs an inverse quantization process on the signal transmitted via the bit precision constraint region. The present technology can be applied to an image signal transmission device that transmits image signals, for example.

    Image decoding apparatus and method therefor

    公开(公告)号:US09928452B2

    公开(公告)日:2018-03-27

    申请号:US15169993

    申请日:2016-06-01

    CPC分类号: G06K15/184 H04N1/41 H04N1/642

    摘要: This invention decodes image data without overwriting the decompression result of the first image data by that of the second image data when the first image data compressed by the first method and the second image data compressed by the second method coexist. To do this, when decoding the image data in which the first image data compressed by the first method and the second image data compressed by the second method different from the first method coexist, a lossy-decoding unit decodes the first image data. Based on boundary information indicating a compression region compressed by the second method, a lossless-decoding unit selectively outputs pixel data decoded by the lossy-decoding unit or pixel data obtained by decoding the second image data of the compression region.