公开(公告)号：US20180359474A1

公开(公告)日：2018-12-13

申请号：US16005806

申请日：2018-06-12

Applicant: SONY CORPORATION

Inventor： HIRONARI SAKURAI ,  JUNICHI TANAKA

IPC: H04N19/122 ,  H04N19/625 ,  H04N19/126 ,  H04N19/61 ,  H04N19/129 ,  H04N19/597 ,  H04N19/134 ,  H04N19/30 ,  H04N19/46 ,  H04N19/176

CPC classification number: H04N19/122 ,  H04N19/126 ,  H04N19/129 ,  H04N19/134 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/625

Abstract: There is provided an image processing device including a decoding section that decodes an encoded stream and generates quantized transform coefficient data, and an inverse quantization section that, taking transform coefficient data as transform units to be used during inverse orthogonal transform, inversely quantizes the quantized transform coefficient data decoded by the decoding section, such that in a case where a non-square transform unit is selected, the inverse quantization section uses a non-square quantization matrix, corresponding to a non-square transform unit, that is generated from a square quantization matrix corresponding to a square transform unit.

公开(公告)号：US20190268597A1

公开(公告)日：2019-08-29

申请号：US16312823

申请日：2017-06-20

Applicant: SONY CORPORATION

Inventor： TAKEFUMI NAGUMO ,  HIRONARI SAKURAI

IPC: H04N19/126 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: The present disclosure relates to an image processing apparatus and method that can keep reduction in coding efficiency to a minimum. A scaling list is set that has values appropriate to a current block size for the current block to be quantized in an image to be coded, quantization is performed using the set scaling list, and coded data is generated by coding an acquired quantization coefficient. The present disclosure is applicable, for example, to an image processing apparatus, an image coding apparatus, an image decoding apparatus, and so on.

公开(公告)号：US20170188030A1

公开(公告)日：2017-06-29

申请号：US15406911

申请日：2017-01-16

Applicant: SONY CORPORATION

Inventor： HIRONARI SAKURAI ,  JUNICHI TANAKA

IPC: H04N19/122 ,  H04N19/61 ,  H04N19/126 ,  H04N19/129

CPC classification number: H04N19/122 ,  H04N19/126 ,  H04N19/129 ,  H04N19/134 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/625

Abstract: There is provided an image processing device including a decoding section that decodes an encoded stream and generates quantized transform coefficient data, and an inverse quantization section that, taking transform coefficient data as transform units to be used during inverse orthogonal transform, inversely quantizes the quantized transform coefficient data decoded by the decoding section, such that in a case where a non-square transform unit is selected, the inverse quantization section uses a non-square quantization matrix, corresponding to a non-square transform unit, that is generated from a square quantization matrix corresponding to a square transform unit.

公开(公告)号：US20150256839A1

公开(公告)日：2015-09-10

申请号：US14630833

申请日：2015-02-25

Applicant: SONY CORPORATION

Inventor： NOBUO UEKI ,  TOSHINORI IHARA ,  TAKEFUMI NAGUMO ,  HIRONARI SAKURAI ,  SHUO LU ,  YOSHITAKA MORIGAMI

IPC: H04N19/30 ,  H04N19/85 ,  G06T1/60

CPC classification number: H04N19/30 ,  G06T9/00 ,  H04N19/426 ,  H04N19/85

Abstract: Provided is an image processing apparatus including: an encoder configured to scalably encode image data; a write unit configured to cause storage via a predetermined bus to store encoded data that is the image data scalably encoded by the encoder; a read unit configured to read a desired layer of the encoded data from the storage via the bus; and a decoder configured to scalably decode the encoded data read from the storage by the read unit.

Abstract translation: 提供一种图像处理装置，包括：编码器，被配置为对图像数据进行可缩放编码; 写单元，被配置为经由预定总线进行存储以存储作为由所述编码器可缩放编码的图像数据的编码数据; 读单元，被配置为经由总线从存储器读取编码数据的期望层; 以及解码器，被配置为对由读取单元从存储器读取的编码数据进行可扩展地解码。

公开(公告)号：US20190394494A1

公开(公告)日：2019-12-26

申请号：US16480608

申请日：2018-02-06

Applicant: SONY CORPORATION

Inventor： HIRONARI SAKURAI

IPC: H04N19/88 ,  H04N19/70

Abstract: The present disclosure relates to image processing apparatus and method that can realize the same GOP structure as AVC in a case of field coding. Fields in each GOP of interlaced images input in a reproduction order are rearranged to arrange the fields in a decoding order in order of an I picture, a leading picture that precedes the I picture in the reproduction order, and a trailing picture that follows the I picture in the reproduction order, and the fields rearranged in the decoding order are encoded. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, or the like.

公开(公告)号：US20190356917A1

公开(公告)日：2019-11-21

申请号：US16524750

申请日：2019-07-29

Applicant: SONY CORPORATION

Inventor： HIRONARI SAKURAI ,  JUNICHI TANAKA

IPC: H04N19/122 ,  H04N19/625 ,  H04N19/126 ,  H04N19/61 ,  H04N19/129 ,  H04N19/597 ,  H04N19/30 ,  H04N19/46 ,  H04N19/176 ,  H04N19/134

Abstract: There is provided an image processing device including a decoding section that decodes an encoded stream and generates quantized transform coefficient data, and an inverse quantization section that, taking transform coefficient data as transform units to be used during inverse orthogonal transform, inversely quantizes the quantized transform coefficient data decoded by the decoding section, such that in a case where a non-square transform unit is selected, the inverse quantization section uses a non-square quantization matrix, corresponding to a non-square transform unit, that is generated from a square quantization matrix corresponding to a square transform unit.

公开(公告)号：US20180338156A1

公开(公告)日：2018-11-22

申请号：US15777788

申请日：2016-08-26

Applicant: SONY CORPORATION

Inventor： YOSHITAKA MORIGAMI ,  TAKEFUMI NAGUMO ,  HIRONARI SAKURAI ,  SHUO LU

IPC: H04N19/57 ,  H04N19/52

Abstract: [Object] To realize a motion compensation method that is more suitable for parallel processing of multiple chips.[Solution] Provided is an image processing apparatus including: an inter-prediction section that generates a set of reference pixels of fractional pixel positions from a reference image for motion compensation and searches an image to be encoded for a motion vector by using the set of generated reference pixels; and an encoding section that encodes the image to be encoded on a basis of a result of searching for the motion vector by the inter-prediction section. The inter-prediction section includes a reference pixel at a fractional pixel position further inward than a first predetermined distance from a boundary of a partial region corresponding to a slice or a tile, in the set of reference pixels that are used for searching the partial region for a motion vector.

公开(公告)号：US20160373740A1

公开(公告)日：2016-12-22

申请号：US15121380

申请日：2015-02-24

Applicant: SONY CORPORATION

Inventor： TAKEFUMI NAGUMO ,  NOBUO UEKI ,  TOSHINORI IHARA ,  SHUO LU ,  HIRONARI SAKURAI ,  YOSHITAKA MORIGAMI

IPC: H04N19/11 ,  H04N19/154 ,  H04N19/593 ,  H04N19/423 ,  H04N19/14 ,  H04N19/176

CPC classification number: H04N19/11 ,  H04N19/109 ,  H04N19/14 ,  H04N19/154 ,  H04N19/176 ,  H04N19/33 ,  H04N19/423 ,  H04N19/503 ,  H04N19/593

Abstract: The present disclosure relates to an image encoding device and a method that can suppress a decrease in image quality due to encoding. The image encoding device includes: a control unit configured to restrict a mode of generation of a predicted image, based on prediction of image quality of reference image data to be referred to when generating the predicted image; a prediction unit configured to generate the predicted image according to a mode not restricted by the control unit; and an encoding unit configured to encode image data using the predicted image generated by the prediction unit. The present disclosure can be applied to an image processing device or an image encoding device, for example.

Abstract translation: 本公开涉及一种图像编码装置和可以抑制由于编码导致的图像质量下降的方法。 图像编码装置包括：控制单元，被配置为基于在生成预测图像时参考的参考图像数据的图像质量的预测来限制预测图像的生成模式; 预测单元，被配置为根据不受控制单元限制的模式生成预测图像; 以及编码单元，被配置为使用由预测单元生成的预测图像对图像数据进行编码。 本公开可以应用于例如图像处理装置或图像编码装置。