公开(公告)号：US20080008240A1

公开(公告)日：2008-01-10

申请号：US11825641

申请日：2007-07-05

申请人： Shingo Suzuki ,  Yoshihiro Kikuchi ,  Yuji Kawashima

发明人： Shingo Suzuki ,  Yoshihiro Kikuchi ,  Yuji Kawashima

IPC分类号： H04N11/04 ,  H04B1/66

CPC分类号： H04N19/136 ,  H04N19/109 ,  H04N19/132 ,  H04N19/172

摘要： A communication terminal performs a discrete cosine transform and a quantization process in accordance with a selected coding mode so as to reduce loads caused by these processings and suppress degradation of picture quality. When performing coding of a moving picture inputted through a picture input part, a control part determines which coding mode among 4×4 intra prediction coding on a luminance signal, 16×16 intra prediction coding, intra prediction coding on a color-differential signal, and inter prediction coding is performed. In accordance with the selected coding mode, and in view of a predictive error, the processing content in the discrete cosine transform and the quantization process is switched.

摘要翻译： 通信终端根据选择的编码模式执行离散余弦变换和量化处理，以减少由这些处理造成的负担，并抑制图像质量的劣化。 当对通过图像输入部输入的动态图像进行编码时，控制部分确定对于亮度信号进行4×4帧内预测编码之中的编码模式，16×16帧内预测编码，色差信号的帧内预测编码和帧间预测编码 被执行。 根据选择的编码模式，并且考虑到预测误差，离散余弦变换和量化处理中的处理内容被切换。

公开(公告)号：US08290041B2

公开(公告)日：2012-10-16

申请号：US11825641

申请日：2007-07-05

申请人： Shingo Suzuki ,  Yoshihiro Kikuchi ,  Yuji Kawashima

发明人： Shingo Suzuki ,  Yoshihiro Kikuchi ,  Yuji Kawashima

IPC分类号： H04N7/12

CPC分类号： H04N19/136 ,  H04N19/109 ,  H04N19/132 ,  H04N19/172

摘要： A communication terminal performs a discrete cosine transform and a quantization process in accordance with a selected coding mode so as to reduce loads caused by these processings and suppress degradation of picture quality. When performing coding of a moving picture inputted through a picture input part, a control part determines which coding mode among 4×4 intra prediction coding on a luminance signal, 16×16 intra prediction coding, intra prediction coding on a color-differential signal, and inter prediction coding is performed. In accordance with the selected coding mode, and in view of a predictive error, the processing content in the discrete cosine transform and the quantization process is switched.

摘要翻译： 通信终端根据选择的编码模式执行离散余弦变换和量化处理，以减少由这些处理造成的负担，并抑制图像质量的劣化。 当对通过画面输入部输入的运动画面进行编码时，控制部分确定4×4帧内预测编码对亮度信号的编码方式，16×16帧内预测编码，色差信号的帧内预测编码， 并进行帧间预测编码。 根据选择的编码模式，并且考虑到预测误差，离散余弦变换和量化处理中的处理内容被切换。

公开(公告)号：US20080037637A1

公开(公告)日：2008-02-14

申请号：US11796948

申请日：2007-04-30

申请人： Yuji Kawashima ,  Yoshihiro Kikuchi ,  Shingo Suzuki

发明人： Yuji Kawashima ,  Yoshihiro Kikuchi ,  Shingo Suzuki

IPC分类号： H04N11/02

CPC分类号： H04N19/156 ,  H04N19/103 ,  H04N19/11 ,  H04N19/147

摘要： In a moving picture encoding apparatus, a processing load detection section detects a load and outputs load information and a video encoder judges a load level based on the load information. A start pixel in target pixels is determined depending on the load level, the evaluation value is calculated from pixels specified by the start pixel, a encoding cost is calculated based on the evaluation value to select one of prediction modes for minimizing the encoding cost. The start pixel is so selected as to exclude the pixels which are spatially neighboring to reference pixels for prediction, instead of all pixels within a 4×4 pixel block as the processing load becomes large. Thus, the picture processing amount is reducing while suppressing the deterioration of the encoding performance.

摘要翻译： 在运动图像编码装置中，处理负载检测部分检测负载并输出负载信息，并且视频编码器基于负载信息来判断负载水平。 根据负载水平确定目标像素中的起始像素，根据由起始像素指定的像素计算评估值，基于评估值计算编码成本，以选择用于使编码成本最小化的预测模式之一。 选择起始像素，以排除与参考像素在空间上相邻的用于预测的像素，而不是随着处理负载变大而在4×4像素块内的所有像素。 因此，在抑制编码性能劣化的同时，图像处理量减少。

公开(公告)号：US08189667B2

公开(公告)日：2012-05-29

申请号：US11796948

申请日：2007-04-30

申请人： Yuji Kawashima ,  Yoshihiro Kikuchi ,  Shingo Suzuki

发明人： Yuji Kawashima ,  Yoshihiro Kikuchi ,  Shingo Suzuki

IPC分类号： H04N7/12

CPC分类号： H04N19/156 ,  H04N19/103 ,  H04N19/11 ,  H04N19/147

摘要： In a moving picture encoding apparatus, a processing load detection section detects a load and outputs load information and a video encoder judges a load level based on the load information. A start pixel in target pixels is determined depending on the load level, the evaluation value is calculated from pixels specified by the start pixel, a encoding cost is calculated based on the evaluation value to select one of prediction modes for minimizing the encoding cost. The start pixel is so selected as to exclude the pixels which are spatially neighboring to reference pixels for prediction, instead of all pixels within a 4×4 pixel block as the processing load becomes large. Thus, the picture processing amount is reducing while suppressing the deterioration of the encoding performance.

摘要翻译： 在运动图像编码装置中，处理负载检测部分检测负载并输出负载信息，并且视频编码器基于负载信息来判断负载水平。 根据负载水平确定目标像素中的起始像素，根据由起始像素指定的像素计算评估值，基于评估值计算编码成本，以选择用于使编码成本最小化的预测模式之一。 为了排除与参考像素在空间上相邻的用于预测的像素，而不是随着处理负荷变大而在4×4像素块内的全部像素而被选择。 因此，在抑制编码性能劣化的同时，图像处理量减少。

公开(公告)号：US20070009040A1

公开(公告)日：2007-01-11

申请号：US11477282

申请日：2006-06-29

申请人： Shingo Suzuki ,  Yoshihiro Kikuchi ,  Yuji Kawashima

发明人： Shingo Suzuki ,  Yoshihiro Kikuchi ,  Yuji Kawashima

IPC分类号： H04N11/04

CPC分类号： H04N19/176 ,  H04N19/523 ,  H04N19/573

摘要： While accuracy of motion compensated prediction is kept high, reduction in processing amount is made possible. When motion compensated prediction is performed on inputted image data by a motion vector detection section, first, reference is made to past three reference frames stored in a reference image storage section, integer search is performed on the image data for each macroblock, and a motion prediction vector is detected by this. Based on the detection result of the motion prediction vector, a reference frame most appropriate for execution of motion compensated prediction is determined for each blocks. Next, based on the determination result, it is judged whether or not reference frames regarded as most appropriate for all blocks (nine blocks) are coincident to each other. As a result of the judgment, when the same reference frame is selected for all candidate blocks, only the reference frame regarded as most appropriate is made the object of sub-pel search, and the motion prediction vector is detected with sub-pel pixel accuracy.

摘要翻译： 虽然运动补偿预测的精度保持较高，但是可以减少处理量。 当通过运动矢量检测部分对输入的图像数据进行运动补偿预测时，首先，参考存储在参考图像存储部分中的过去三个参考帧，对每个宏块的图像数据执行整数搜索，以及运动 预测向量由此检测。 基于运动预测向量的检测结果，针对每个块确定最适合执行运动补偿预测的参考帧。 接下来，基于确定结果，判断被认为是最适合于所有块（9个块）的参考帧是否彼此一致。 作为判断的结果，当对所有候选块选择相同的参考帧时，仅将被认为最适合的参考帧作为子像素搜索的对象，并且以子像素像素精度检测运动预测矢量 。

公开(公告)号：US20120147968A1

公开(公告)日：2012-06-14

申请号：US13230477

申请日：2011-09-12

申请人： Yuji Kawashima ,  Emi Maruyama

发明人： Yuji Kawashima ,  Emi Maruyama

IPC分类号： H04N7/26

CPC分类号： H04N19/44 ,  H04N19/132 ,  H04N19/156 ,  H04N19/18

摘要： One embodiment provides a moving picture decoding device for decoding a compression-coded video stream, including: an inverse-quadrature-transformer/dequantizer configured to perform inverse-quadrature-transformation/dequantization processing on each frame to be decoded; a load detector configured to detect a magnitude of an apparatus processing load including a processing load for decoding; a judging module configured to judge whether the magnitude of the apparatus processing load detected by the load detecting module is small; and a controller configured to control the inverse-quadrature-transformer/dequantizer so as to skip at least part of the inverse-quadrature-transformation/dequantization processing if the judging module judges that the magnitude of the apparatus processing load is not small.

摘要翻译： 一个实施例提供了一种用于对压缩编码视频流进行解码的运动图像解码装置，包括：逆正交变换器/去量化器，被配置为对要解码的每个帧执行逆正交变换/去量化处理; 负载检测器，被配置为检测包括用于解码的处理负载的装置处理负载的大小; 判断模块，被配置为判断由所述负载检测模块检测到的装置处理负载的大小是否小; 以及控制器，被配置为如果判断模块判断设备处理负载的大小不小，则控制逆正交变压器/去量化器，以便跳过至少一部分逆正交变换/去量化处理。

公开(公告)号：US20110182367A1

公开(公告)日：2011-07-28

申请号：US12981166

申请日：2010-12-29

申请人： Yuji Kawashima

发明人： Yuji Kawashima

IPC分类号： H04N7/26

CPC分类号： H04N21/4341 ,  H04N9/806 ,  H04N21/23611 ,  H04N21/2368 ,  H04N21/85406 ,  H04N21/8547

摘要： According to one embodiment, a media coding apparatus is provided. The media coding apparatus includes: a coding module which codes each of a plurality of input media; and a multiplexing module which multiplexes a plurality of coded media so as to synchronize replays of the plurality of coded media with each other. The multiplexing module inserts dummy data into a media whose head timing has a delay among the plurality of coded media, the dummy data having a time length that is equal to the delay.

摘要翻译： 根据一个实施例，提供一种媒体编码装置。 媒体编码装置包括：编码模块，对多个输入媒体中的每一个进行编码; 以及复用模块，其复用多个编码媒体，以使多个编码媒体的重放彼此同步。 复用模块将伪数据插入其头部定时在多个编码媒体之间具有延迟的媒体中，虚拟数据具有等于延迟的时间长度。

公开(公告)号：US20090168878A1

公开(公告)日：2009-07-02

申请号：US12341851

申请日：2008-12-22

申请人： Yuji Kawashima

发明人： Yuji Kawashima

IPC分类号： H04N11/02

CPC分类号： H04N19/117 ,  H04N7/0132 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/17 ,  H04N19/176 ,  H04N19/184 ,  H04N19/503 ,  H04N19/61

摘要： According to one embodiment, a moving picture coding device regarding the invention comprises a coding module which codes moving picture data in macroblocks, a coding information analysis module which analyzes coded pictures and coding information of macroblocks at the coding module, and a coding control module which issues an instruction of coding to the coding module in pictures or in macroblocks on the basis of an analysis result of the coding analysis module, wherein the coding analysis module performs still area determination and flat area determination for each coding target macroblock, and the coding control module applies intra flicker suppression processing to macroblocks which have been in a still area and also in a flat area by the coding analysis module.

摘要翻译： 根据一个实施例，关于本发明的运动图像编码装置包括编码模块，用于在宏块中编码运动图像数据，编码信息分析模块，其分析编码图像的编码图像和编码模块中的宏块的编码信息;编码控制模块， 基于编码分析模块的分析结果，向图像或宏块中的编码模块发出编码指令，其中编码分析模块对每个编码对象宏块执行静态区域确定和平坦区域确定，编码控制 模块将帧内闪烁抑制处理应用于已经在静止区域中并且还通过编码分析模块在平坦区域中的宏块。

公开(公告)号：US20080247557A1

公开(公告)日：2008-10-09

申请号：US12045457

申请日：2008-03-10

申请人： Takashi Sudo ,  Kimio Miseki ,  Yuji Kawashima

发明人： Takashi Sudo ,  Kimio Miseki ,  Yuji Kawashima

IPC分类号： H04B3/20

CPC分类号： H04M9/082

摘要： According to one embodiment, a signal processing apparatus includes a speaker configured to output the received input signal on which a delay detection signal which has a frequency component of an inaudible frequency on a received input signal is superposed to an acoustic space, an extracting section configured to extract the delay detection signal from the sending input signal outputted from microphone configured to collect sound in the acoustic space a calculating section configured to calculate a delay time between the received input signal and an acoustic echo component contained in the sending input signal, a delay section configured to delay the received input signal by a time corresponding to the delay time and generate a delayed received input signal, and an echo suppression processing section configured to suppress the acoustic echo component contained in the sending input signal by use of the delayed received input signal.

摘要翻译： 根据一个实施例，一种信号处理装置包括：扬声器，被配置为输出接收到的输入信号，在所述接收输入信号上将具有接收到的输入信号的不可听频率的频率分量的延迟检测信号叠加到声学空间;提取部分配置 从被配置为在声学空间中收集声音的麦克风输出的发送输入信号中提取延迟检测信号，计算部分，被配置为计算接收的输入信号和包含在发送输入信号中的声学回声分量之间的延迟时间，延迟 被配置为将接收的输入信号延迟与延迟时间相对应的时间，并产生延迟的接收输入信号;以及回波抑制处理部，被配置为通过使用延迟的接收输入来抑制包含在发送输入信号中的声学回声分量 信号。

公开(公告)号：US07054364B2

公开(公告)日：2006-05-30

申请号：US10058406

申请日：2002-01-30

申请人： Yuji Kawashima

发明人： Yuji Kawashima

IPC分类号： H04N7/12

CPC分类号： H04N19/61

摘要： An encoding section can perform moving picture compression processes by intra-coding and inter-coding. In accordance with an instruction from a code production amount control section, the encoding section divides an input VOP to MBs according to one of the moving picture compression processes by intra-coding and inter-coding, and subjects the divided MBs to encoding processing. A code production amount count section counts the code amount of a produced bit stream. A quantization scale mean value calculation section accumulates the quantization scale instructed by the code production amount control section, and calculates a mean value of the quantization scale for each VOP. The code production amount control section switches the encoding process to be carried out by the encoding section to the intra-coding process, on the basis of the code production amount, the mean value of the quantization scale and the frame skip number.