公开(公告)号：US11107251B2

公开(公告)日：2021-08-31

申请号：US16896766

申请日：2020-06-09

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： G06T9/00 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/117 ,  H04N19/154 ,  H04N19/182 ,  H04N19/82 ,  H04N19/523 ,  H04N19/40 ,  H04N19/44 ,  H04N19/52 ,  H04N19/11

摘要： The present invention relates to an image processing device and method which enable encoding efficiency in intra prediction to be improved. In the event that the optimal intra prediction mode is mode 0, adjacent pixels to be used for prediction of the current block are pixels A0, A1, A2, and A3. According to these pixels and a 6-tap FIR filter, pixels a−0.5, a+0.5, and so on with ½ pixel precision are generated, and further, pixels a−0.75, a−0.25, a+0.25, and a+0.75 with ¼ pixel precision are generated by linear interpolation. Subsequently, the optimal shift amount is determined with a value of −0.75 through +0.75 that is phase difference between an integer pixel and generated fractional pixel precision serving as a candidate of the shift amount in the horizontal direction. The present invention may be applied to an image encoding device which performs encoding using the H.264/AVC system, for example.

公开(公告)号：US11051016B2

公开(公告)日：2021-06-29

申请号：US16138301

申请日：2018-09-21

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： H04N19/117 ,  H04N19/176 ,  H04N19/134 ,  H04N19/14 ,  H04N19/82 ,  H04N19/86

摘要： An image processing device and method capable of improving image quality of a decoded image and of an image to be referenced from now on with motion compensation. A mosquito noise filter is provided within a motion compensation loop including at least a computing unit, an orthogonal transform unit, a quantization unit, an inverse quantization unit, an inverse orthogonal transform unit, a computing unit, a frame memory, a switch, a motion prediction/compensation unit, and a prediction image selecting unit. The mosquito noise filter uses information from the orthogonal transform unit, quantization unit, and a lossless encoding unit to determine whether to perform filter processing for removing mosquito noise. The device and method may be applied to an image encoding device for performing encoding with H.264/AVC format, for example.

公开(公告)号：US10834426B2

公开(公告)日：2020-11-10

申请号：US14442211

申请日：2013-11-21

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： H04N19/70 ,  H04N19/57 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/44

摘要： The present disclosure relates to an image processing device and method which are capable of suppressing a reduction in an increase in coding efficiency. A receiving unit that receives an encoded bitstream including a syntax element related to an inter-image process and an analyzing unit that analyzes the syntax element received by the receiving unit in a state in which a value of the syntax element is restricted when the bitstream is a bitstream encoded based on a profile for encoding a still image are provided. For example, the present disclosure can be applied to an image processing device.

公开(公告)号：US10755445B2

公开(公告)日：2020-08-25

申请号：US16361862

申请日：2019-03-22

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： G06T9/00 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/117 ,  H04N19/154 ,  H04N19/182 ,  H04N19/82 ,  H04N19/523 ,  H04N19/40 ,  H04N19/44 ,  H04N19/52 ,  H04N19/11

摘要： The present invention relates to an image processing device and method which enable encoding efficiency in intra prediction to be improved. In the event that the optimal intra prediction mode is mode 0, adjacent pixels to be used for prediction of the current block are pixels A0, A1, A2, and A3. According to these pixels and a 6-tap FIR filter, pixels a−0.5, a+0.5, and so on with ½ pixel precision are generated, and further, pixels a−0.75, a−0.25, a+0.25, and a+0.75 with ¼ pixel precision are generated by linear interpolation. Subsequently, the optimal shift amount is determined with a value of −0.75 through +0.75 that is phase difference between an integer pixel and generated fractional pixel precision serving as a candidate of the shift amount in the horizontal direction. The present invention may be applied to an image encoding device which performs encoding using the H.264/AVC system, for example.

公开(公告)号：US10687060B2

公开(公告)日：2020-06-16

申请号：US15023156

申请日：2014-10-02

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： H04N19/122 ,  H04N19/176 ,  H04N19/126 ,  H04N19/70 ,  H04N19/157

摘要： A decoding device, including circuitry configured to decode a bit stream and generate a quantized value, and inversely quantize the generated quantized value by using a flat scaling list, in a case where a block size of a transform block to which a transform skip is applied is larger than a 4 by 4 block size.

公开(公告)号：US10536698B2

公开(公告)日：2020-01-14

申请号：US16111961

申请日：2018-08-24

申请人： SONY CORPORATION

发明人： Jun Xu ,  Kazushi Sato ,  Ehsan Maani

IPC分类号： H04N7/26 ,  H04N19/186 ,  H04N19/124 ,  H04N19/176 ,  H04N19/147 ,  H04N19/61 ,  H04N19/70 ,  H04N19/149 ,  H04N19/126 ,  H04N19/174 ,  H04N19/13 ,  H04N19/159 ,  H04N19/80 ,  H04N19/436 ,  H04N19/172

摘要： The quantization parameters (QP) for Chroma are extended up to and more preferably to the same range as Luma QP (e.g., 0 to 51). Previous, values of Chroma QP only extended up to 39. Techniques are provided for determining extended Chroma QP values (e.g., for Cr and Cb) based on the Luma QP and picture level chroma offsets. In one preferred embodiment, slice level offsets are added making the method particularly well-suited for slice level parallel processing. The extension of Chroma QP enhances functionality, flexibility and friendliness of the High Efficiency Video Coding (HEVC) standard for various applications.

公开(公告)号：US10375403B2

公开(公告)日：2019-08-06

申请号：US16205262

申请日：2018-11-30

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： H04N19/18 ,  H04N19/33 ,  H04N19/44 ,  H04N19/174 ,  H04N19/14 ,  H04N19/126 ,  H04N19/124 ,  H04N19/463 ,  H04N19/196 ,  H04N19/30 ,  H04N19/119 ,  H04N19/70 ,  H04N19/176

摘要： An image processing apparatus, including processing circuitry configured to decode a bit stream to generate quantized data. The bit stream includes a flag, for each block, that specifies whether or not a difference quantization parameter is present in the bit stream. The flag is included in a first layer that is higher than a second layer in which the difference quantization parameter is set. The processing circuitry is configured to set, according to the flag, a current quantization parameter for a current sub block formed by block partitioning, which splits a block into smaller sub blocks. The processing circuitry is configured to inversely quantize the generated quantized data using the set current quantization parameter.

公开(公告)号：US10212446B2

公开(公告)日：2019-02-19

申请号：US15968182

申请日：2018-05-01

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： H04N19/503 ,  H04N19/44 ,  H04N19/70 ,  H04N19/187 ,  H04N19/159 ,  H04N19/147 ,  H04N19/103 ,  H04N19/31

摘要： The present disclosure relates to image processing device and method that can suppress the deterioration in encoding efficiency.An image processing device includes: a reception unit that receives encoded data in which an image with a plurality of main layers is encoded, and inter-layer prediction control information controlling whether to perform inter-layer prediction, which is prediction between the plurality of main layers, with the use of a sublayer; and a decoding unit that decodes each main layer of the encoded data received by the reception unit by performing the inter-layer prediction on only the sublayer specified by the inter-layer prediction control information received by the reception unit. The present disclosure can be applied to, for example, an image processing device.

公开(公告)号：US10212423B2

公开(公告)日：2019-02-19

申请号：US16032669

申请日：2018-07-11

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： H04N1/00 ,  H04N19/124 ,  H04N19/50 ,  H04N19/126 ,  G06T9/00 ,  H04N19/593 ,  H04N19/61 ,  H04N19/463 ,  H04N19/17

摘要： An image processing apparatus and a method for improving the coding efficiency for a quantization parameter are provided. The method includes steps of setting a predicted quantization parameter for a current coding unit by using multiple quantization parameters which are set for multiple surrounding coding units located around the current coding unit which is target of coding processing, and setting a difference quantization parameter indicating a difference value between the quantization parameter which is set for the current coding unit and the predicted quantization parameter.

公开(公告)号：US10187647B2

公开(公告)日：2019-01-22

申请号：US14647602

申请日：2013-12-16

申请人： SONY CORPORATION

发明人： Kazushi Sato

IPC分类号： H04N19/187 ,  H04N19/70 ,  H04N19/30 ,  H04N19/463 ,  H04N19/152 ,  H04N19/162

摘要： Provided is an image processing device including a receiving section configured to receive a bitstream obtained by encoding an image having at least one layer and buffer management parameter information of each layer indicating at least one of that a parameter for managing a decoder buffer is a parameter for performing a decoding process of only a corresponding layer and that the parameter for managing the decoder buffer is a parameter for performing a decoding process of a corresponding layer and a lower layer, and a decoding section configured to decode the bitstream received by the receiving section and generate an image.