公开(公告)号：US20170280155A1

公开(公告)日：2017-09-28

申请号：US15618316

申请日：2017-06-09

Applicant: Renesas Electronics Corporation

Inventor： Kenichi IWATA ,  Seiji MOCHIZUKI ,  Toshiyuki KAYA ,  Ryoji HASHIMOTO

IPC: H04N19/513 ,  H04N19/174 ,  H04N19/55 ,  H04N19/105 ,  H04N19/167

CPC classification number: H04N19/521 ,  H04N19/105 ,  H04N19/167 ,  H04N19/174 ,  H04N19/436 ,  H04N19/51 ,  H04N19/55 ,  H04N19/86

Abstract: To reduce noise or the like generated at a boundary of tiles introduced in a video coding method. In a motion vector detection unit, a first tile video signal and a second tile video signal included in one picture are supplied to a first detection unit and a second detection unit, and a reference image is supplied from a frame memory to the first detection unit and the second detection unit. The first detection unit performs processing, by inter prediction, on the video signal positioned on or in the vicinity of a tile boundary between a first tile and another tile among many video signals included in the first tile. In this processing, the first detection unit generates a motion vector so as to preferentially refer to the reference image included in another tile different from the first tile among the reference images read out from the frame memory.

公开(公告)号：US20160029021A1

公开(公告)日：2016-01-28

申请号：US14752883

申请日：2015-06-27

Applicant: Renesas Electronics Corporation

Inventor： Kenichi IWATA ,  Tetsuya SHIBAYAMA ,  Katsushige MATSUBARA ,  Ren IMAOKA ,  Seiji MOCHIZUKI

IPC: H04N19/117 ,  H04N19/124 ,  H04N19/18 ,  H04N19/86

CPC classification number: H04N19/117 ,  H04N19/124 ,  H04N19/159 ,  H04N19/164 ,  H04N19/172 ,  H04N19/174 ,  H04N19/18 ,  H04N19/44 ,  H04N19/45 ,  H04N19/86

Abstract: To improve an image recognition rate by quickly changing a parameter in a proper manner without being affected by a transmission delay of an image encoding stream in an image receiving device that recognizes a decoded image obtained by decoding the received image encoding stream. The image receiving device includes a data receiving unit, a parameter changing unit, a decoding unit, and an image recognition unit. The data receiving unit receives an image encoding stream including image encoding data and the parameter. The parameter changing unit changes the parameter received by the data receiving unit, that is, the parameter specified for encoding performed by a sender, to a value suitable for image recognition performed in the subsequent stage. The decoding unit generates the image decoding data by decoding the received image encoding data according to the changed parameter. The image recognition unit performs image recognition on the image decoding data.

Abstract translation: 通过以适当的方式快速改变参数来提高图像识别率，而不受图像接收装置中的图像编码流的传输延迟的影响，图像接收装置识别通过解码接收到的图像编码流而获得的解码图像。 图像接收装置包括数据接收单元，参数改变单元，解码单元和图像识别单元。 数据接收单元接收包括图像编码数据和参数的图像编码流。 参数改变单元将由数据接收单元接收的参数，即由发送者执行的编码所指定的参数改变为适合在后续阶段执行的图像识别的值。 解码单元通过根据改变的参数对接收的图像编码数据进行解码来生成图像解码数据。 图像识别单元对图像解码数据执行图像识别。

公开(公告)号：US20160007025A1

公开(公告)日：2016-01-07

申请号：US14749505

申请日：2015-06-24

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Toshiyuki KAYA ,  Seiji MOCHIZUKI ,  Tetsuya SHIBAYAMA ,  Kenichi IWATA ,  Hiroshi UEDA ,  Ren IMAOKA

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/12

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/12 ,  H04N19/16 ,  H04N19/176 ,  H04N19/433 ,  H04N19/436 ,  H04N19/597

Abstract: In a picture encoding device and a picture decoding device, the access to a reference frame memory is suppressed. The picture encoding device is comprised of a first encoder for intra picture encoding, a second encoder for inter picture encoding, and an intermediate buffer. A local decoded picture generated by the first encoder is stored as a reference picture in the intermediate buffer, and the inter picture encoding by the second encoder is performed by referring to the local decoded picture in the intermediate buffer. A picture decoding device is comprised of a first decoder for intra picture decoding, a second decoder for inter picture decoding, and an intermediate buffer. A local decoded picture generated by the first decoder is stored as a reference picture in the intermediate buffer, and the inter picture decoding by the second decoder is performed by referring the local decoded picture in the intermediate buffer.

Abstract translation: 在图像编码装置和图像解码装置中，抑制对基准帧存储器的访问。 图像编码装置包括用于画面内编码的第一编码器，用于帧间编码的第二编码器和中间缓冲器。 由第一编码器产生的局部解码图像作为参考图像存储在中间缓冲器中，并且通过参考中间缓冲器中的局部解码图像来执行由第二编码器进行的帧间编码。 图像解码装置包括用于画面内解码的第一解码器，用于画面间解码的第二解码器和中间缓冲器。 由第一解码器产生的局部解码图像作为参考图像存储在中间缓冲器中，并且通过参考中间缓冲器中的局部解码图像来执行第二解码器的帧间图像解码。

公开(公告)号：US20160283430A1

公开(公告)日：2016-09-29

申请号：US14965612

申请日：2015-12-10

Applicant: Renesas Electronics Corporation

Inventor： Hiroshi UEDA ,  Seiji MOCHIZUKI ,  Toshiyuki KAYA ,  Kenichi IWATA ,  Katsushige MATSUBARA

IPC: G06F13/40 ,  G06F13/28

CPC classification number: G06F13/4068 ,  G06F9/5066 ,  G06F13/28 ,  H04N19/176 ,  H04N19/423 ,  H04N19/436

Abstract: A plurality of transfer modules (402-0 to 402-M) that transfer data between processing units are provided so as to respectively correspond to a plurality of processing units (401-0 to 401-M). First ring buses (403-0 to 403-M) connect, for each of the processing units (401-0 to 401-M), subunits within a corresponding processing unit and the transfer module corresponding to the processing unit so that they form a ring shape. The plurality of transfer modules (402-0 to 402-M) are connected so that they form a ring shape by a second ring bus (404).

Abstract translation: 提供在处理单元之间传送数据的多个传送模块（402-0至402-M），以分别对应于多个处理单元（401-0至401-M）。 对于每个处理单元（401-0至401-M），第一环形总线（403-0至403-M）连接相应处理单元内的子单元和对应于处理单元的传送模块，从而形成 环形。 多个传送模块（402-0至402-M）被连接成使得它们通过第二环形总线（404）形成环形。

公开(公告)号：US20150245045A1

公开(公告)日：2015-08-27

申请号：US14620081

申请日：2015-02-11

Applicant: Renesas Electronics Corporation

Inventor： Katsushige MATSUBARA ,  Takayuki MATSUMI ,  Seiji MOCHIZUKI ,  Kenichi IWATA ,  Toshiyuki KAYA

IPC: H04N19/436 ,  H04N19/91 ,  G06T1/20

CPC classification number: H04N19/436 ,  G06T1/20 ,  H04N19/91

Abstract: The present invention provides an image processing apparatus capable of efficiently scheduling tasks and a control method for the same. An image processing apparatus according to an embodiment includes: a request receiving unit that receives requests from a plurality of pieces of content; a variable-length code processing unit which decodes or encodes the content; a plurality of image signal processing units executing tasks according to the requests in parallel; an estimating unit that estimates estimate time by which a process of the task is completed in each of the image signal processing units on the basis of a parameter of decoding or encoding used in the variable-length code processing unit; and a scheduling unit that schedules tasks executed by the plurality of image signal processing units on the basis of estimation time estimated by the estimating unit.

Abstract translation: 本发明提供能够有效地调度任务的图像处理装置及其控制方法。 根据实施例的图像处理装置包括：请求接收单元，其从多个内容接收请求; 可变长度码处理单元，其对内容进行解码或编码; 多个图像信号处理单元，根据请求并行执行任务; 估计单元，其基于在所述可变长度代码处理单元中使用的解码或编码的参数来估计每个所述图像信号处理单元中完成所述任务的处理的估计时间; 以及调度单元，其基于由所述估计单元估计的估计时间来调度由所述多个图像信号处理单元执行的任务。

公开(公告)号：US20220138919A1

公开(公告)日：2022-05-05

申请号：US17088791

申请日：2020-11-04

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Quyet Hoang ,  Hai NGUYEN ,  Son LE ,  Kenichi IWATA ,  Tetsuya SHIBAYAMA

IPC: G06T5/40 ,  G06T7/11 ,  G06T7/20 ,  G06T9/00 ,  G06T3/40

Abstract: An image processing device and image processing methods that improve image quality by reducing latency and improving the performance of local processing are provided.
An image processing device using an image input signal as an input and an image output signal as an output includes a first image processing unit and a second image processing unit. The first image processing unit includes a histogram processing unit for extracting image characteristic data from the image input signal, a first image parameter processing unit for creating a first parameter group for performing image processing from the image characteristic data, and an arithmetic processing unit for processing the image input signal to create an image output signal. The second image processing unit has a second image parameter processing unit for creating a second parameter group for performing image processing from the image characteristic data.

公开(公告)号：US20160057432A1

公开(公告)日：2016-02-25

申请号：US14830606

申请日：2015-08-19

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Tetsuya SHIBAYAMA ,  Seiji MOCHIZUKI ,  Katsushige MATSUBARA ,  Kenichi IWATA

IPC: H04N19/166 ,  H04N19/61 ,  H04N19/124 ,  H04N19/117

CPC classification number: H04N19/124 ,  G06K9/4614 ,  G06K9/6257 ,  H04N19/103 ,  H04N19/115 ,  H04N19/117 ,  H04N19/136 ,  H04N19/154 ,  H04N19/46 ,  H04N19/54 ,  H04N19/61

Abstract: Included are an encoding section, a decoding section, and an image recognition section. The encoding section performs an encoding process for a video signal to be input based on a calculated encoding mode, and transmits an encoded stream. The decoding section performs a decoding process for the received encoded stream, and outputs a decoded image. The image recognition section performs an image recognition process for the decoded image. The encoding section adjusts the encoding mode based on recognition accuracy information representing the certainty of a recognition result in the image recognition section.

Abstract translation: 包括编码部分，解码部分和图像识别部分。 编码部分基于所计算的编码模式执行要输入的视频信号的编码处理，并发送编码流。 解码部对接收到的编码流进行解码处理，并输出解码图像。 图像识别部对解码图像执行图像识别处理。 编码部分基于表示图像识别部分中的识别结果的确定性的识别精度信息来调整编码模式。

公开(公告)号：US20170366817A1

公开(公告)日：2017-12-21

申请号：US15697143

申请日：2017-09-06

Applicant: Renesas Electronics Corporation

Inventor： Ryoji HASHIMOTO ,  Seiji MOCHIZUKI ,  Kenichi IWATA

IPC: H04N19/159 ,  H04N19/593 ,  H04N19/176 ,  H04N19/105 ,  H04N19/119 ,  H04N19/11 ,  H04N19/70 ,  H04N19/50

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/176 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70

Abstract: In terms of the transmission of the coding method, it is ensured to decode information coded according to the intra-frame prediction coding with vector information. An error of a piece of divisional image information targeted for image prediction coding and a piece of predicted information is determined to perform prediction coding. A data stream in which a piece of information for identifying a prediction method and a piece of information subjected to prediction coding according to the method are arranged is produced according to the process sequence of the prediction coding for each process on the divisional image information. At this time, the data stream has a pair of vector information and the error information as information subjected to prediction coding for each process on the divisional image information on condition that the prediction method is intra-frame prediction coding with vectors.

公开(公告)号：US20170257637A1

公开(公告)日：2017-09-07

申请号：US15604356

申请日：2017-05-24

Applicant: Renesas Electronics Corporation

Inventor： Katsushige MATSUBARA ,  Takayuki MATSUMI ,  Seiji MOCHIZUKI ,  Kenichi IWATA ,  Toshiyuki KAYA

IPC: H04N19/436 ,  H04N19/91 ,  G06T1/20

CPC classification number: H04N19/436 ,  G06T1/20 ,  H04N19/91

Abstract: An in-vehicle system includes a camera having an encoder encoding video obtained by the camera, an image processing apparatus which receives the encoded video from the camera, and an image recognition processing circuit performing image recognition on decoded video data from the image processing apparatus. The image processing apparatus includes a codec processing circuit which decodes the encoded video, a plurality of image processing circuits which execute tasks in parallel, an estimating circuit which estimates estimation time in which a process of the task is completed in each of the image processing circuit on the basis of the number of access times to a bus which is obtained on the basis of a parameter of decoding used in the codec processing circuit, and a scheduling circuit which schedules tasks to be executed by the plurality of image processing circuit on the basis of the estimation time.

公开(公告)号：US20160156926A1

公开(公告)日：2016-06-02

申请号：US14906901

申请日：2013-07-22

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Ryoji HASHIMOTO ,  Kenichi IWATA ,  Kazushi AKIE

IPC: H04N19/563 ,  H04N19/61 ,  H04N19/86 ,  H04N19/42 ,  H04N19/115 ,  H04N19/119 ,  H04N19/146 ,  H04N19/159 ,  H04N19/52 ,  H04N19/91

CPC classification number: H04N19/563 ,  H04N19/11 ,  H04N19/115 ,  H04N19/119 ,  H04N19/124 ,  H04N19/132 ,  H04N19/146 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/42 ,  H04N19/436 ,  H04N19/52 ,  H04N19/59 ,  H04N19/61 ,  H04N19/86 ,  H04N19/91

Abstract: A moving image encoding apparatus executes moving image encoding of a syntax element relating to a moving image signal VS to form an encoded bitstream CVBS. Padding processing of adding padding processing data PD to the moving image signal VS is executed prior to the moving image encoding, and the horizontal and vertical sizes of an additional moving image signal added the padding processing data are set to an integral multiple of an encoded block size in the moving image encoding. It is determined that the encoded block of the syntax element belongs to which of the moving image signal VS and the padding processing data PD. In a case where the encoded block belongs to the former, an encoded bitstream having a large code amount is formed. In a case where the encoded block belongs to the latter, an encoded bitstream having a small code amount is formed.

Abstract translation: 运动图像编码装置执行与运动图像信号VS相关的语法元素的运动图像编码，以形成编码比特流CVBS。 在运动图像编码之前执行将填充处理数据PD添加到运动图像信号VS的填充处理，并且将添加了填充处理数据的附加运动图像信号的水平和垂直尺寸设置为编码块的整数倍 尺寸在运动图像编码。 确定语法元素的编码块属于运动图像信号VS和填充处理数据PD中的哪一个。 在编码块属于前者的情况下，形成具有大码量的编码比特流。 在编码块属于后者的情况下，形成具有小代码量的编码比特流。