专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US07460598B2 Image information conversion apparatus and image information conversion method 失效
标题翻译：图像信息转换装置和图像信息转换方法
公开(公告)号：US07460598B2
公开(公告)日：2008-12-02
申请号：US11113291
申请日：2005-04-25
申请人： Kazushi Sato , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
发明人： Kazushi Sato , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
IPC分类号： H04B1/66
CPC分类号： H04N19/40 , H04N19/115 , H04N19/126 , H04N19/139 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/159 , H04N19/172 , H04N19/196 , H04N19/20 , H04N19/463 , H04N19/51 , H04N19/61
摘要： The invention provides an image information conversion apparatus and method by which picture quality deterioration caused by conversion from inputted MPEG2 image compression information into MPEG4 image compression information to be outputted is prevented. When an I picture of an MPEG2 bit stream is to be converted into a P-VOP of an MPEG4 bit stream based on an estimated value of the complexity for each VOP, a scene change detection section detects whether or not the I picture includes a scene change. If a scene change is detected by the scene change detection section, then a GOV structure determination section determines that conversion of the I picture of the MPEG2 bit stream into a P-VOP of an MPEG4 bit stream should not be performed.
摘要翻译：本发明提供了一种图像信息转换装置和方法，通过该图像信息转换装置和方法防止了从输入的MPEG2图像压缩信息转换成要输出的MPEG4图像压缩信息引起的图像质量恶化。当基于每个VOP的复杂度的估计值将MPEG2比特流的I图像转换为MPEG4比特流的P-VOP时，场景改变检测部分检测I图像是否包括场景更改。如果场景变化检测部检测到场景变化，则GOV构造判定部判定为不进行MPEG2比特流的P图像的MPEG图像的MPEG图像的转换。

72. 发明申请

US20060269156A1 Image processing apparatus and method, recording medium, and program 审中-公开
公开(公告)号：US20060269156A1
公开(公告)日：2006-11-30
申请号：US11501746
申请日：2006-08-10
申请人： Kuniaki Takahashi , Kazushi Sato , Yoichi Yagasaki
发明人： Kuniaki Takahashi , Kazushi Sato , Yoichi Yagasaki
IPC分类号： G06K9/00
CPC分类号： H04N19/59 , H04N19/124 , H04N19/132 , H04N19/15 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/40 , H04N19/523 , H04N19/56 , H04N19/61
摘要： A normalized activity calculating unit calculates a normalized activity that is calculated from luminescence component pixel values of an original image on the basis of information from an information buffer such as bit rate, an amount of bits generated in each frame, and an amount of bits generated and quantization step size in each macroblock. The normalized activity calculating unit then outputs the normalized activity to a code amount control unit. The code amount control unit calculates a quantization scale code corresponding to a target bit rate which quantization scale code matches visual characteristics, using the normalized activity inputted from the normalized activity calculating unit, and then outputs the quantization scale code to a quantizing unit. The quantizing unit quantizes discrete cosine transform coefficients inputted from a band limiting unit on the basis of the quantization scale code inputted to the quantizing unit.

73. 发明申请

US20060072835A1 Image pickup device and decoding device 审中-公开
标题翻译：摄像装置及解码装置
公开(公告)号：US20060072835A1
公开(公告)日：2006-04-06
申请号：US11237943
申请日：2005-09-29
申请人： Yiwen Zhu , Kazushi Sato , Yoichi Yagasaki
发明人： Yiwen Zhu , Kazushi Sato , Yoichi Yagasaki
IPC分类号： G06K9/36
CPC分类号： H04N19/59 , H04N19/33
摘要： An image pickup device includes an image pickup unit outputting an image pickup result; an analog-to-digital converter analog-to-digital converting the image pickup result and outputting image data; a reduced image generator generating a plurality of reduced images by sequentially and gradually reducing a resolution of an original image based on the image data a number of times equal to a predetermined number of stages; an encoder in which, for a reduced image with the lowest resolution, corresponding image data is encoded and encoded data is output, and for the other reduced images and the original image, differential data with respect to prediction image data based on the reduced image with a resolution lower by one stage is encoded and encoded data is output; and a prediction image data generator generating the prediction image data from the encoded data.
摘要翻译：图像拾取装置包括输出图像拾取结果的图像拾取单元; 模拟 - 数字转换器模数转换图像拾取结果并输出图像数据; 缩小图像生成器，通过基于图像数据顺序地逐渐地减少原始图像的分辨率，生成多个缩小图像，次数等于预定数量的级; 对于具有最低分辨率的缩小图像对应的图像数据被编码并且编码数据被输出的编码器，并且对于其它缩小图像和原始图像，基于与图像的缩小图像相关的预测图像数据的差分数据，编码一个低一分辨率的分辨率，并输出编码数据; 以及预测图像数据生成器，从编码数据生成预测图像数据。

74. 发明授权

US07012959B2 Picture information conversion method and apparatus 失效
标题翻译：图片信息转换方法和装置
公开(公告)号：US07012959B2
公开(公告)日：2006-03-14
申请号：US09862421
申请日：2001-05-23
申请人： Kazushi Sato , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
发明人： Kazushi Sato , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
IPC分类号： H04N7/12 , H04N11/02
CPC分类号： H04N19/59 , H04N19/112 , H04N19/115 , H04N19/124 , H04N19/139 , H04N19/14 , H04N19/149 , H04N19/176 , H04N19/20 , H04N19/40 , H04N19/46 , H04N19/61
摘要： Stable code rate control is performed in converting picture information. MPEG2 interlaced scanned compressed picture information (bitstream) is converted into the progressive scanned MPG4 compressed picture information (bitstream). An activity synthesis unit 15 synthesizes from the activity-based activity information in the MPEG2 compressed picture information (bitstream) the macroblock-based activity information in the MPEG4 compressed picture information (bitstream). An MPEG4 picture information encoding unit (I/P-VOP) 11 uses the so-synthesized activity information as the parameter for adaptive quantization at the time of encoding the MPEG4 picture information.
摘要翻译：在转换图像信息时执行稳定的码率控制。将MPEG2隔行扫描的压缩图像信息（比特流）转换成逐行扫描的MPG4压缩图像信息（比特流）。活动合成单元15从MPEG2压缩图像信息（比特流）中的基于活动的活动信息合成MPEG4压缩图像信息（比特流）中的基于宏块的活动信息。在编码MPEG4图像信息时，MPEG4图像信息编码单元（I / P-VOP）11使用所合成的活动信息作为自适应量化的参数。

75. 发明申请

US20050190838A1 Image information conversion apparatus and image information conversion method 失效
标题翻译：图像信息转换装置和图像信息转换方法
公开(公告)号：US20050190838A1
公开(公告)日：2005-09-01
申请号：US11113290
申请日：2005-04-25
申请人： Kazushi Sato , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
发明人： Kazushi Sato , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
IPC分类号： H04N19/50 , G06T9/00 , H04N19/103 , H04N19/134 , H04N19/136 , H04N19/142 , H04N19/146 , H04N19/172 , H04N19/186 , H04N19/19 , H04N19/196 , H04N19/20 , H04N19/40 , H04N19/423 , H04N19/51 , H04N19/59 , H04N19/60 , H04N19/625 , H04N19/85 , H04N19/91 , H04N7/12
CPC分类号： H04N19/40 , H04N19/115 , H04N19/126 , H04N19/139 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/159 , H04N19/172 , H04N19/196 , H04N19/20 , H04N19/463 , H04N19/51 , H04N19/61
摘要： The invention provides an image information conversion apparatus and method by which picture quality deterioration caused by conversion from inputted MPEG2 image compression information into MPEG4 image compression information to be outputted is prevented. When an I picture of an MPEG2 bit stream is to be converted into a P-VOP of an MPEG4 bit stream based on an estimated value of the complexity for each VOP, a scene change detection section detects whether or not the I picture includes a scene change. If a scene change is detected by the scene change detection section, then a GOV structure determination section determines that conversion of the I picture of the MPEG2 bit stream into a P-VOP of an MPEG4 bit stream should not be performed.
摘要翻译：本发明提供了一种图像信息转换装置和方法，通过该图像信息转换装置和方法防止了从输入的MPEG2图像压缩信息转换成要输出的MPEG4图像压缩信息引起的图像质量恶化。当基于每个VOP的复杂度的估计值将MPEG2比特流的I图像转换为MPEG4比特流的P-VOP时，场景改变检测部分检测I图像是否包括场景更改。如果场景变化检测部检测到场景变化，则GOV构造判定部判定为不进行MPEG2比特流的P图像的MPEG图像的MPEG图像的转换。

76. 发明授权

US08649442B2 Coding device and method, decoding device and method, recording medium, and program 有权
公开(公告)号：US08649442B2
公开(公告)日：2014-02-11
申请号：US13559117
申请日：2012-07-26
申请人： Kazushi Sato , Teruhiko Suzuki , Osamu Sunohara , Yoichi Yagasaki
发明人： Kazushi Sato , Teruhiko Suzuki , Osamu Sunohara , Yoichi Yagasaki
IPC分类号： H04N7/12
CPC分类号： H04N19/52 , H03M7/4006 , H04N19/13 , H04N19/16 , H04N19/176 , H04N19/513 , H04N19/537
摘要： An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

77. 发明授权

US08619875B2 Coding device and method, decoding device and method, recording medium, and program 有权
公开(公告)号：US08619875B2
公开(公告)日：2013-12-31
申请号：US13559066
申请日：2012-07-26
申请人： Kazushi Sato , Teruhiko Suzuki , Osamu Sunohara , Yoichi Yagasaki
发明人： Kazushi Sato , Teruhiko Suzuki , Osamu Sunohara , Yoichi Yagasaki
IPC分类号： H04N7/12
CPC分类号： H04N19/52 , H03M7/4006 , H04N19/13 , H04N19/16 , H04N19/176 , H04N19/513 , H04N19/537
摘要： An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

78. 发明授权

US08270475B2 Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information 有权
标题翻译：用于对图像信息进行编码的方法和装置，用于对图像信息进行解码的方法和装置，用于对图像信息进行编码和解码的方法和装置，以及编码和发送图像信息的系统
公开(公告)号：US08270475B2
公开(公告)日：2012-09-18
申请号：US13370094
申请日：2012-02-09
申请人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
发明人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
IPC分类号： H04B1/66
CPC分类号： H04N19/124 , H04N7/26244 , H04N7/26335 , H04N7/26941 , H04N7/50 , H04N19/126 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/40 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/625
摘要： An image encoding method for encoding an image in an image encoding apparatus. The encoding method includes: performing, in a quantization unit in the image encoding apparatus, quantization on a chroma component of transform coefficients using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation that adds a weight parameter; encoding, in an encoding unit in the image encoding apparatus, a chroma component of quantized coefficients and generating a bit stream; and transferring the bit stream and the weight parameter.
摘要翻译：一种用于对图像编码装置中的图像进行编码的图像编码方法。编码方法包括：在图像编码装置的量化单元中，使用基于通过添加权重参数的加法运算加权的亮度量化参数计算的色度量化参数，对变换系数的色度分量进行量化; 在图像编码装置的编码单元中编码量化系数的色度分量并生成比特流; 并传送比特流和权重参数。

79. 发明授权

US08265143B2 Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information 有权
标题翻译：用于对图像信息进行编码的方法和装置，用于对图像信息进行解码的方法和装置，用于对图像信息进行编码和解码的方法和装置，以及编码和发送图像信息的系统
公开(公告)号：US08265143B2
公开(公告)日：2012-09-11
申请号：US13370205
申请日：2012-02-09
申请人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
发明人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
IPC分类号： H04B1/66
CPC分类号： H04N19/124 , H04N7/26244 , H04N7/26335 , H04N7/26941 , H04N7/50 , H04N19/126 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/40 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/625
摘要： An image information decoding method for decoding a bit stream in an image decoding apparatus. The decoding process includes decoding, in a decoding unit in the image decoding apparatus, the bit stream and generating a chroma component of quantized coefficients; and performing, in a dequantization unit in the image decoding apparatus, dequantization on the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation.
摘要翻译：一种用于对图像解码装置中的比特流进行解码的图像信息解码方法。解码处理包括在图像解码装置的解码单元中对位流进行解码，生成量化系数的色度分量; 并且在所述图像解码装置的去量化单元中，使用基于通过加法运算加权的亮度量化参数计算出的色度量化参数，对量化系数的色度分量进行去量化。

80. 发明授权

US08243808B2 Image information encoding method and encoder, and image information decoding method and decoder 有权
标题翻译：图像信息编码方法和编码器，以及图像信息解码方法及解码器
公开(公告)号：US08243808B2
公开(公告)日：2012-08-14
申请号：US12340356
申请日：2008-12-19
申请人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki
发明人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki
IPC分类号： H04N7/12
CPC分类号： H04N19/109 , H04N7/01 , H04N11/042 , H04N11/046 , H04N19/105 , H04N19/112 , H04N19/124 , H04N19/136 , H04N19/139 , H04N19/152 , H04N19/16 , H04N19/176 , H04N19/186 , H04N19/36 , H04N19/44 , H04N19/50 , H04N19/51 , H04N19/513 , H04N19/523 , H04N19/57
摘要： In an image information encoder (10) supplied with an interlaced image in a 4:2:0 format, a color-difference signal phase correction unit (22) shifts, for motion estimation and compensation, the phase of the color-difference signal in a reference image block adaptively to a selected motion estimate mode and the value mv of vertical component in motion vector information so that the reference image block will coincide in phase of the color-difference signal with an input image block.
摘要翻译：在以4:2:0格式提供隔行扫描图像的图像信息编码器（10）中，色差信号相位校正单元（22）将色差信号的相位移动到运动估计和补偿中参考图像块自适应于所选择的运动估计模式和运动矢量信息中的垂直分量的值mv，使得参考图像块将与色差信号与输入图像块的相位一致。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式