公开(公告)号：US20080239153A1

公开(公告)日：2008-10-02

申请号：US11693453

申请日：2007-03-29

申请人： Yi-Jen Chiu

发明人： Yi-Jen Chiu

IPC分类号： H04N5/00

CPC分类号： H04N17/00 ,  G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20032 ,  H04N5/142 ,  H04N5/21

摘要： A method of filtering noise from a picture may include determining a set of pixel noise metrics for a set of selected pixels in the picture, based solely on information from the set of selected pixels in the picture. The method may also designate as valid a subset of pixel noise metrics in the set of pixel noise metrics those associated pixels are not located at an edge or are not located in a complicated area of the picture. A set of block noise metrics may be calculated from the valid subset of pixel noise metrics, and a global noise metric for the picture may be ascertained from the set of block noise metrics. The picture may be filtered using the global noise metric to generate a filtered picture.

摘要翻译： 一种滤除图像噪声的方法可以包括基于图像中所选择的像素集合中的信息确定图像中的一组选定像素的像素噪声度量集合。 该方法还可以将像素噪声度量集合中的像素噪声度量的子集指定为相关像素不位于边缘处或者不位于图像的复杂区域中的子集。 可以从像素噪声度量的有效子集计算一组块噪声度量，并且可以从块噪声度量的集合中确定图像的全局噪声度量。 可以使用全局噪声度量来对图像进行滤波以产生滤波图像。

公开(公告)号：US20080101474A1

公开(公告)日：2008-05-01

申请号：US11555522

申请日：2006-11-01

申请人： Yi-Jen Chiu ,  Mei-Chen Yeh

发明人： Yi-Jen Chiu ,  Mei-Chen Yeh

IPC分类号： H04N11/04 ,  H04N7/12

CPC分类号： H04N19/103 ,  H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/70

摘要： A method of decoding a slice of video data may include determining two slice reference lists that are associated with the slice of video data and finding a co-located picture that is associated with the slice of video data. The method may also include retrieving two co-located reference lists that are associated with the co-located picture. Two lowest lists for the slice of video data may be calculated by comparing pairs of the two slice reference lists and the two co-located reference lists.

摘要翻译： 解码视频数据片段的方法可以包括确定与视频数据片段相关联的两个片段参考列表，并找到与视频数据片段相关联的同位置的片段。 该方法还可以包括检索与共同定位的图片相关联的两个同位置的参考列表。 可以通过比较两个切片参考列表和两个同位置参考列表的对来计算视频数据片段的两个最低列表。

公开(公告)号：US07043088B2

公开(公告)日：2006-05-09

申请号：US10910027

申请日：2004-08-03

申请人： Yi-Jen Chiu ,  Rajesh Hingorani ,  Obed Duardo ,  Paul Albin Wilford

发明人： Yi-Jen Chiu ,  Rajesh Hingorani ,  Obed Duardo ,  Paul Albin Wilford

IPC分类号： G06K9/36

CPC分类号： H03M7/42 ,  H04N19/91

摘要： A method is disclosed for decoding multiple-coded symbols from a coded input symbol stream in a single clock cycle. The method constructs an original Huffman look-up table by extending the associated Huffman tree to decode multiple symbols in one clock cycle in a first embodiment and decodes multiple DCT coefficient symbols in an alternate embodiment. An advantage of the method is that the depth of the new Huffman tree is adjustable thereby making the method easily adaptable to various hardware architectures. A further advantage of the present invention is that the decoding process speed is significantly increased while the size of the lookup table is nominally increased.

摘要翻译： 公开了一种用于在单个时钟周期中从编码输入符号流解码多重编码符号的方法。 该方法通过在第一实施例中在一个时钟周期内扩展相关联的霍夫曼树来解码多个符号来构造原始霍夫曼查找表，并且在替代实施例中解码多个DCT系数符号。 该方法的一个优点是新的霍夫曼树的深度是可调的，从而使该方法容易适应各种硬件架构。 本发明的另一个优点是，在查询表的大小名义上增加时，解码处理速度显着增加。

公开(公告)号：US06771824B1

公开(公告)日：2004-08-03

申请号：US09473809

申请日：1999-12-28

申请人： Yi-Jen Chiu ,  Rajesh Hingorani ,  Obed Duardo ,  Paul Albin Wilford

发明人： Yi-Jen Chiu ,  Rajesh Hingorani ,  Obed Duardo ,  Paul Albin Wilford

IPC分类号： G06K936

CPC分类号： H03M7/42 ,  H04N19/91

摘要： A method is disclosed for decoding multiple-coded symbols from a coded input symbol stream in a single clock cycle. The method constructs an original Huffman look-up table by extending the associated Huffman tree to decode multiple symbols in one clock cycle in a first embodiment and decodes multiple DCT coefficient symbols in an alternate embodiment. An advantage of the method is that the depth of the new Huffman tree is adjustable thereby making the method easily adaptable to various hardware architectures. A further advantage of the present invention is that the decoding process speed is significantly increased while the size of the look-up table is nominally increased.

摘要翻译： 公开了一种用于在单个时钟周期中从编码输入符号流解码多重编码符号的方法。 该方法通过在第一实施例中在一个时钟周期内扩展相关联的霍夫曼树来解码多个符号来构造原始霍夫曼查找表，并且在替代实施例中解码多个DCT系数符号。 该方法的一个优点是新的霍夫曼树的深度是可调的，从而使该方法容易适应各种硬件架构。 本发明的另一个优点是，在查询表的大小名义上增加时，解码处理速度显着增加。

公开(公告)号：US06233283B1

公开(公告)日：2001-05-15

申请号：US09102811

申请日：1998-06-23

申请人： Yi-Jen Chiu ,  John Hartung ,  James Steven Pawlyk

发明人： Yi-Jen Chiu ,  John Hartung ,  James Steven Pawlyk

IPC分类号： H04N750

CPC分类号： H04N21/643 ,  H04N19/115 ,  H04N19/14 ,  H04N19/154 ,  H04N19/176 ,  H04N19/37 ,  H04N19/61 ,  H04N19/89

摘要： An encoder for coding multiple layers of video signal to provide for efficient use of bandwidth. The encoder produces an error signal based at least in part on criteria considered by a perceptual preprocessor which takes into account limitations inherent in human visual perception. If the error signal generated from a subject frame represents high priority data that would be visually perceptible by a viewer, as determined by the preprocessor, the error signal is coded onto a base layer and an error resilience layer of a coded signal for transmission. In the event that the error signal is determined to be of less priority, such as if it represents only slightly visually perceptible information, then the error signal is coded onto only a low priority layer of the coded signal.

摘要翻译： 用于编码多层视频信号以提供带宽的有效使用的编码器。 编码器至少部分地基于感知预处理器考虑的标准产生误差信号，其考虑到人类视觉感知中固有的限制。 如果从主题帧产生的误差信号表示由预处理器确定的视听者可视觉的高优先级数据，则将误差信号编码到用于传输的编码信号的基本层和错误恢复层上。 在错误信号被确定为较不优先的情况下，例如，如果它仅表示稍微视觉上可感知的信息，则误差信号被编码到编码信号的低优先级层上。

公开(公告)号：US5973626A

公开(公告)日：1999-10-26

申请号：US42509

申请日：1998-03-17

申请人： Toby Berger ,  Yi-Jen Chiu ,  Mikio Kawahara

发明人： Toby Berger ,  Yi-Jen Chiu ,  Mikio Kawahara

IPC分类号： H03M7/42 ,  H03M7/40 ,  H03M7/00

CPC分类号： H03M7/42

摘要： Two software-only prefix encoding techniques employ encoding look-up tables to produce contributions to the encoded bit stream that are incremented in integral numbers of bytes to facilitate accelerated encoding rates at the expense of an acceptable trade-off in increased memory size requirements. The first technique, referred to as offset-based encoding, employs encoding tables which eliminate most of the bit-based operations that need to be performed by a prefix encoder without inordinately expanding memory requirements. In offset-based encoding, a Huffman table is employed which contains information for each number of bits by which the length of a Huffman word is offset from an integral number of bytes. The encoding method generates bytes of encoded data, even though the Huffman code has variable length code words for each symbol to be encoded. The second technique, referred to as byte-based encoding, employs a byte-based Huffman encoding table which operates even faster than the offset-based encoding scheme because it does not employ any bit-based operations at all; however, this is achieved at the expense of a considerable expansion in memory requirements.

摘要翻译： 两个仅软件前缀编码技术采用编码查找表来产生对以字节为单位递增的编码比特流的贡献，以便以增加的存储器大小要求的可接受的折衷为代价来加速编码速率。 称为基于偏移的编码的第一种技术使用编码表，其消除了需要由前缀编码器执行的大部分基于位的操作，而不会不断扩大存储器需求。 在基于偏移的编码中，使用霍夫曼表，其包含每个比特数的信息，通过该信息，霍夫曼字的长度与整数字节偏移。 编码方法生成编码数据的字节，即使霍夫曼代码对于要编码的每个符号具有可变长度代码字。 被称为基于字节的编码的第二种技术采用基于字节的霍夫曼编码表，其基于偏移的编码方案运行甚至更快，因为它完全不采用任何基于位的操作; 然而，这是以大量的内存需求扩张为代价的。

公开(公告)号：US20140313243A1

公开(公告)日：2014-10-23

申请号：US14129242

申请日：2012-12-21

申请人： Niraj Gupta ,  Supratim Pal ,  Mahesh B. Chappalli ,  Yi-Jen Chiu ,  Hong Jiang

发明人： Niraj Gupta ,  Supratim Pal ,  Mahesh B. Chappalli ,  Yi-Jen Chiu ,  Hong Jiang

IPC分类号： G09G5/10 ,  G09G5/06

CPC分类号： G09G5/10 ,  G09G5/06 ,  G09G2320/029 ,  G09G2320/066 ,  H04N5/57 ,  H04N21/4318

摘要： Systems, apparatus, articles, and methods are described including operations to generate a weighted look-up-table based at least in part on individual pixel input values within an active block region and on a plurality of contrast compensation functions. A second level compensation may be performed for a center pixel block of the active region based at least in part on the weighted look-up-table.

摘要翻译： 描述了系统，装置，物品和方法，其包括至少部分地基于活动块区域内的各个像素输入值和多个对比度补偿功能来生成加权查找表的操作。 可以至少部分地基于加权查找表来对活动区域的中心像素块执行第二级补偿。

公开(公告)号：US20140232820A1

公开(公告)日：2014-08-21

申请号：US13977380

申请日：2013-02-20

申请人： Hyeong-Seok V Ha ,  Yi-Jen Chiu

发明人： Hyeong-Seok V Ha ,  Yi-Jen Chiu

IPC分类号： H04N13/00

CPC分类号： H04N13/271 ,  G06T3/40 ,  G06T5/002 ,  G06T5/003 ,  G06T7/529 ,  G06T2207/10004 ,  G06T2207/10016 ,  G06T2207/20228 ,  H04N13/261

摘要： Systems, apparatus and methods are described related to real-time automatic conversion of 2-dimensional images or video to 3-dimensional stereo images or video.

摘要翻译： 描述了与二维图像或视频到三维立体图像或视频的实时自动转换有关的系统，装置和方法。

公开(公告)号：US20140226865A1

公开(公告)日：2014-08-14

申请号：US13997092

申请日：2011-12-30

申请人： Qiang Li ,  Jianguo Li ,  Yi-Jen Chiu ,  Ya-Ti Peng ,  Yangzhou Du

发明人： Qiang Li ,  Jianguo Li ,  Yi-Jen Chiu ,  Ya-Ti Peng ,  Yangzhou Du

IPC分类号： H04N5/14 ,  G06K9/62

CPC分类号： H04N5/145 ,  G06K9/3216 ,  G06K9/3233 ,  G06K9/6267 ,  G06T7/223 ,  G06T7/248

摘要： Systems and methods of detecting an object using motion estimation may include a processor and motion estimation and object detection logic coupled to the processor. The motion estimation and object detection logic may be configured to include logic to detect an object in a frame of a video based on motion estimation. The video may include a first frame and a second frame. The motion estimation may be performed on a region of the second frame using sum of absolute difference between the region of the second frame and a corresponding region of the first frame.

摘要翻译： 使用运动估计来检测对象的系统和方法可以包括耦合到处理器的处理器和运动估计和对象检测逻辑。 运动估计和对象检测逻辑可以被配置为包括基于运动估计来检测视频帧中的对象的逻辑。 视频可以包括第一帧和第二帧。 可以使用第二帧的区域和第一帧的对应区域之间的绝对差的和来在第二帧的区域上执行运动估计。

公开(公告)号：US20130266080A1

公开(公告)日：2013-10-10

申请号：US13994773

申请日：2011-10-01

申请人： Ning Lu ,  Brian D. Rauchfuss ,  Sang-Hee Lee ,  Yi-Jen Chiu

发明人： Ning Lu ,  Brian D. Rauchfuss ,  Sang-Hee Lee ,  Yi-Jen Chiu

IPC分类号： H04N7/26

CPC分类号： H04N19/85 ,  H04N19/40 ,  H04N19/86

摘要： Methods, systems and computer program products to increase the efficiency of a trancoding system by providing additional data from a video processor to an encoder, and by providing control signals from the encoder back to the video processor. The video processor may provide variances to the encoder, where these values would not otherwise be available to the encoder or would be computationally intensive for the encoder to generate on its own. The encoder may then use these variances to generate encoded, compressed video data more efficiently. The encoder may also generate control signals for use by the video processor, enabling the video processor to adapt to reconfigurations of the encoder, thereby improving the efficiency of the transcoding operation.

摘要翻译： 方法，系统和计算机程序产品，通过从视频处理器向编码器提供附加数据，以及通过将编码器的控制信号提供给视频处理器来提高转码系统的效率。 视频处理器可以向编码器提供方差，其中这些值否则将不适用于编码器，或者对于编码器来说，它们对于编码器来说将是计算密集型的。 然后，编码器可以使用这些方差更有效地生成经编码的压缩视频数据。 编码器还可以产生视频处理器使用的控制信号，使视频处理器能够适应编码器的重新配置，从而提高转码操作的效率。