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公开(公告)号：US08233728B2
公开(公告)日：2012-07-31
申请号：US12266780
申请日：2008-11-07
申请人： Dave M. Singhal , Wen-hsiung Chen , Dihong Tian
发明人： Dave M. Singhal , Wen-hsiung Chen , Dihong Tian
IPC分类号： G06K9/36
CPC分类号： G06F19/321 , G06F19/00 , H04N19/12 , H04N19/124 , H04N19/162 , H04N19/17 , H04N19/33
摘要： In an image generation and rendering system, a quality stamp indicative of image fidelity is embedded in image data units resulting from image data compression/encoding. At decoding, the image quality stamp is captured and when the decoded image is rendered, a fidelity indicator is displayed along with the image.
摘要翻译： 在图像生成和渲染系统中，将表示图像保真度的质量标记嵌入到由图像数据压缩/编码产生的图像数据单元中。 在解码时，拍摄图像质量标记，并且当渲染解码图像时，与图像一起显示保真度指示符。
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公开(公告)号：US20100119164A1
公开(公告)日：2010-05-13
申请号：US12266780
申请日：2008-11-07
申请人： Dave M. Singhal , Wen-hsiung Chen , Dihong Tian
发明人： Dave M. Singhal , Wen-hsiung Chen , Dihong Tian
IPC分类号： G06K9/36
CPC分类号： G06F19/321 , G06F19/00 , H04N19/12 , H04N19/124 , H04N19/162 , H04N19/17 , H04N19/33
摘要： In an image generation and rendering system, a quality stamp indicative of image fidelity is embedded in image data units resulting from image data compression/encoding. At decoding, the image quality stamp is captured and when the decoded image is rendered, a fidelity indicator is displayed along with the image.
摘要翻译： 在图像生成和渲染系统中，将表示图像保真度的质量标记嵌入到由图像数据压缩/编码产生的图像数据单元中。 在解码时，拍摄图像质量标记，并且当渲染解码图像时，与图像一起显示保真度指示符。
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公开(公告)号：US20130010860A1
公开(公告)日：2013-01-10
申请号：US13603320
申请日：2012-09-04
申请人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang
发明人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H04N19/13 , H04N19/167 , H04N19/176 , H04N19/196 , H04N19/60
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding the position of non-zero-valued coefficients in an ordered series of quantized transform coefficients of a block of image data, including encoding events using variable length coding using a plurality of variable length code mappings that each maps events to codewords, the position encoding including switching between the code mappings based on the context. The coding method further includes encoding amplitudes of the non-zero-valued coefficients using variable dimensional amplitude coding in the reverse order of the original ordering of the series.
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4.发明授权Locally variable quantization and hybrid variable length coding for image and video compression 有权用于图像和视频压缩的局部变量量化和混合可变长度编码公开(公告)号：US08340448B2
公开(公告)日：2012-12-25
申请号：US12574409
申请日：2009-10-06
申请人： Junlin Li , Dihong Tian , Wen-hsiung Chen , Yian Xu
发明人： Junlin Li , Dihong Tian , Wen-hsiung Chen , Yian Xu
CPC分类号： H03M7/40 , H04N19/126 , H04N19/13 , H04N19/132 , H04N19/147 , H04N19/18 , H04N19/19 , H04N19/60 , H04N19/93
摘要： A coding method, apparatus, and storage media with instructions to carry out a method. The method operates on an ordered series of transform coefficients of a block of image data, and for a fixed quantization method, and includes quantizing and encoding the ordered series to form a coded bitstream. The quantizing and encoding uses one or more variable length code (VLC) mappings. The quantizing includes quantizing to have amplitude-1 at least one coefficient that would be quantized by the fixed quantization method to have zero amplitude, quantizing to have zero amplitude at least one coefficient that would be quantized by the fixed quantization method to have amplitude-1, and using the fixed quantization method to quantize any coefficient that is quantized by the fixed quantization method not to have zero amplitude, amplitude-1, or amplitude-2.
摘要翻译： 一种具有执行方法的指令的编码方法，装置和存储介质。 该方法对图像数据块的有序序列变换系数和固定量化方法进行操作，并且包括量化和编码有序序列以形成编码比特流。 量化和编码使用一个或多个可变长度码（VLC）映射。 量化包括量化具有将通过固定量化方法量化的至少一个系数具有零幅度，量化具有零幅度的至少一个系数，该系数将由固定量化方法量化以具有振幅-1 并且使用固定量化方法量化不具有零幅度，幅度-1或幅度-2的固定量化方法量化的任何系数。
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5.发明授权公开(公告)号：US08126062B2
公开(公告)日：2012-02-28
申请号：US11686860
申请日：2007-03-15
申请人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang , John A. Toebes
发明人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang , John A. Toebes
IPC分类号： H04N7/12
CPC分类号： H04N19/18 , H04N19/13 , H04N19/132 , H04N19/157
摘要： A method, and apparatus, and logic encoded in one or more computer-readable tangible medium to carry out a method. The method is to code a plurality of ordered sequences of quantized transform coefficients of a corresponding plurality of blocks of image data using a hybrid coding method that includes determining a breakpoint location in the sequence between a low frequency region and a high frequency region; coding the low-frequency region using a selected low-frequency variable length coding method; coding the high-frequency region using a selected high-frequency variable length coding method; and coding the location of the breakpoint. The plurality of blocks include adjacent blocks and form a multi-block partition. The breakpoint location is determined as a function of the sequences of the multi-block partition such that different multi-block partitions can have different breakpoints.
摘要翻译： 在一个或多个计算机可读有形介质中编码的方法和装置以及逻辑，以执行方法。 该方法是使用包括确定低频区域和高频区域之间的序列中的断点位置的混合编码方法来编码对应的多个图像数据块的多个有序序列的量化变换系数; 使用选择的低频可变长度编码方法对低频区域进行编码; 使用选择的高频可变长度编码方法对高频区域进行编码; 并编码断点的位置。 多个块包括相邻块并形成多块分区。 断点位置被确定为多块分区的序列的函数，使得不同的多块分区可以具有不同的断点。
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公开(公告)号：US08086076B2
公开(公告)日：2011-12-27
申请号：US12031590
申请日：2008-02-14
CPC分类号： G06T9/001 , G06K9/00234 , G06K9/00986 , G06T9/20 , H04N19/124 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/186 , H04N19/436 , H04N19/503
摘要： An apparatus, a method, and a computer-readable medium having instructions encoded thereon that when executed cause a method to be carried out. The method includes dividing at least a portion of a picture of a video stream into parts of blocks, and processing the parts in parallel by a plurality of interconnected processors. The processing of a respective part by its respective processor includes determining block-level temporal difference features. Each processor also performs coding functions on its respective part of the picture. The method also includes block-level processing using the block-level temporal difference features to determine which blocks in the picture are likely to be that of a face, the block-level processing being at the granularity of at least a block. In one version, the processing in each processor includes edge detection and color segmentation to determine block-level edge features including block-level color-segmented edge features that are then used in the block level processing.
摘要翻译： 一种装置，方法和计算机可读介质，其具有在其上编码的指令，当执行时，导致执行方法。 该方法包括将视频流的图像的至少一部分划分为块的部分，以及由多个互连的处理器并行处理这些部分。 通过其相应处理器对相应部分的处理包括确定块级时间差特征。 每个处理器还对其图像的相应部分执行编码功能。 该方法还包括使用块级时间差特征的块级处理，以确定图片中哪些块可能是面的块，块级处理至少是至少一个块的粒度。 在一个版本中，每个处理器中的处理包括边缘检测和颜色分割，以确定块级边缘特征，包括块级颜色分割的边缘特征，然后在块级处理中使用。
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公开(公告)号：US20080240237A1
公开(公告)日：2008-10-02
申请号：US12021198
申请日：2008-01-28
IPC分类号： H04N7/26
CPC分类号： G06T9/001 , G06K9/00234 , G06K9/00986 , G06T9/20 , H04N19/124 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/186 , H04N19/436 , H04N19/503
摘要： An apparatus, a method, and a computer-readable medium having instructions encoded thereon that when executed cause a method to be carried out. The method includes dividing at least a portion of a picture of a video stream into parts of blocks, and processing the parts in parallel by a plurality of interconnected processors. The processing of a respective part by its respective processor includes edge detection and color segmentation to determine block-level edge features including block-level color-segmented edge features. Each processor also performs coding functions on its respective part of the picture. The method also includes block-level processing using the block-level edge features to determine which blocks in the picture are likely to be that of a face, the block-level processing being at the granularity of at least a block.
摘要翻译： 一种装置，方法和计算机可读介质，其具有在其上编码的指令，当执行时，导致执行方法。 该方法包括将视频流的图像的至少一部分划分为块的部分，以及由多个互连的处理器并行处理这些部分。 通过其相应处理器对相应部分的处理包括边缘检测和颜色分割以确定包括块级颜色分割的边缘特征的块级边缘特征。 每个处理器还对其图像的相应部分执行编码功能。 该方法还包括使用块级边缘特征的块级处理，以确定图片中的哪些块可能是面部的块，块级处理至少为块的粒度。
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公开(公告)号：US08934026B2
公开(公告)日：2015-01-13
申请号：US13106002
申请日：2011-05-12
申请人： Dihong Tian , Wen-Hsiung Chen
发明人： Dihong Tian , Wen-Hsiung Chen
IPC分类号： H04N5/228 , H04N7/18 , H04N7/14 , H04N21/4223 , H04N21/61 , H04N21/6547 , H04N19/82 , H04N5/232
CPC分类号： H04N21/4223 , H04N5/23206 , H04N19/82 , H04N21/6125 , H04N21/6547
摘要： A method is provided in one example embodiment and includes receiving a camera dynamic parameter; determining a reference transform parameter based on the camera dynamic parameter; applying the reference transform parameter to generate a video image; and encoding the reference transform parameter in a bitstream for transmission with the video image. In other more specific instances, the method may include decoding a particular video image; decoding a particular reference transform parameter; and applying a particular reference transform parameter to the particular video image. The entropy-decoded data can undergo inverse quantization and transformation such that reference transformed data is combined with the entropy-decoded data. Additionally, the entropy-decoded data can be subjected to filtering before decoded video images are rendered on a display.
摘要翻译： 在一个示例实施例中提供了一种方法，并且包括接收相机动态参数; 基于相机动态参数确定参考变换参数; 应用参考变换参数来生成视频图像; 以及在比特流中对参考变换参数进行编码以与视频图像一起传输。 在其他更具体的实例中，该方法可以包括对特定视频图像进行解码; 解码特定参考变换参数; 以及将特定参考变换参数应用于特定视频图像。 熵解码数据可以进行逆量化和变换，使得参考变换数据与熵解码数据组合。 此外，在解码的视频图像被呈现在显示器上之前，可以对熵解码的数据进行滤波。
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公开(公告)号：US08144784B2
公开(公告)日：2012-03-27
申请号：US11774745
申请日：2007-07-09
申请人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang
发明人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang
CPC分类号： H04N19/13
摘要： Particular embodiments include a method, an apparatus, and logic embodied in tangible computer-readable medium that when executed carries out a method of encoding an ordered sequence of quantized transform coefficients of a block of image data. One embodiment is a context adaptive variable length coding method that includes position coding the positions of zero-valued and non-zero valued coefficients by either a mixed method that encodes either the run length of zeroes preceding a non-zero coefficient or the run length of nonzero-valued coefficients preceding a zero-valued coefficients. Another includes position coding that uses a variable length code for two parameters respectively indicating the number of zero-valued coefficient positions and nonzero-valued coefficient positions still to be coded.
摘要翻译： 具体实施例包括体现在有形计算机可读介质中的方法，装置和逻辑，其在执行时执行编码图像数据块的量化变换系数的有序序列的方法。 一个实施例是上下文自适应可变长度编码方法，其包括通过混合方法对零值和非零值系数的位置进行编码，该混合方法编码非零系数之前的零的游程长度或 零值系数之前的非零值系数。 另一种包括位置编码，其使用分别指示零值系数位置的数量和尚未编码的非零值系数位置的两个参数的可变长度代码。
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公开(公告)号：US20090154820A1
公开(公告)日：2009-06-18
申请号：US12336364
申请日：2008-12-16
申请人： Junlin Li , Ghassan AlRegib , Dihong Tian , Wen-hsiung Chen
发明人： Junlin Li , Ghassan AlRegib , Dihong Tian , Wen-hsiung Chen
IPC分类号： G06K9/36
CPC分类号： H04N19/91
摘要： A coding method for an ordered series of quantized transform coefficients of a block of image data, including a context adaptive position coding process to encode the position of clusters of non-zero-valued coefficients, e.g., a multidimensional position coder that uses one of a plurality of code mappings selected according to at least one criterion including at least one context-based criterion, and an amplitude encoding process to encode any amplitudes remaining to be coded, the amplitude coding using one or a plurality of amplitude code mappings selected according to at least one criterion, including a context-based criterion. A context-based selection criterion is meant a criterion that during encoding is known or derivable from one or more previously encoded items of information. Also a coding apparatus, a decoding apparatus, a computer readable medium configured with instructions that when executed implement a coding method, and another medium for a decoding method.
摘要翻译： 一种用于图像数据块的有序序列量化变换系数的编码方法，包括用于对非零值系数的簇的位置进行编码的上下文自适应位置编码处理，例如，多维位置编码器，其使用 根据包括至少一个基于上下文的标准的至少一个标准选择的多个代码映射，以及编码剩余的要被编码的任何幅度的幅度编码处理，使用根据以下所选择的一个或多个幅度码映射的幅度编码 至少一个标准，包括基于上下文的标准。 基于上下文的选择标准是指在编码期间已知或可从一个或多个先前编码的信息项导出的标准。 还有一种编码装置，解码装置，配置有执行执行编码方法的指令的计算机可读介质和用于解码方法的另一种介质。
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