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11. 发明申请

US20070297686A1 METHOD OF ESTIMATING A QUANTIZATION PARAMETER 有权
标题翻译：估算参数的方法
公开(公告)号：US20070297686A1
公开(公告)日：2007-12-27
申请号：US11747259
申请日：2007-05-11
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： G06K9/36
CPC分类号： H04N19/86 , H04N19/117 , H04N19/126 , H04N19/154
摘要： A method of estimating a quantization parameter is provided. The method is applied to a de-blocking filter. The de-blocking filter de-blocks a decoded block-based image according to the quantization parameter, and the block-based image is coded and decoded in units of macroblocks. The method comprises calculating blocking degrees of a number of block edges corresponding to the macroblocks; and estimating the quantization parameter according to a sum of the blocking degrees.
摘要翻译：提供了一种估计量化参数的方法。该方法应用于解块滤波器。解块滤波器根据量化参数去解码基于块的图像，并且以宏块为单位对基于块的图像进行编码和解码。该方法包括计算与宏块对应的多个块边缘的块数; 以及根据所述阻塞度的和来估计所述量化参数。

12. 发明申请

US20060268177A1 2D YC separation device and YC separation system 失效
标题翻译： 2D YC分离装置和YC分离系统
公开(公告)号：US20060268177A1
公开(公告)日：2006-11-30
申请号：US11438919
申请日：2006-05-23
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： H04N9/77
CPC分类号： H04N9/78
摘要： The invention relates to a 2D YC separation device and YC separation system for separating a composite signal into a luma signal (Y) and a chroma signal (C). Firstly, the 2D YC separation device utilizes a low-pass filter to separate the composite signal into a low-frequency composite signal and a high-frequency composite signal. The low-frequency composite signal is a low-frequency luma signal. A 2D comb filter is utilized to separate the high-frequency composite signal into a high-frequency luma signal and the chroma signal. The luma signal is equal to the low-frequency luma signal plus the high-frequency luma signal. Therefore, the 2D YC separation device of the present invention can perfectly separate the composite signal so as to obtain a better luma signal and chroma signal. The YC separation system of the present invention further comprises a 3D YC separation device and a motion detection device, so as to obtain a precise luma signal and chroma signal.
摘要翻译：本发明涉及用于将复合信号分离为亮度信号（Y）和色度信号（C）的2D YC分离装置和YC分离装置。首先，2D YC分离装置利用低通滤波器将复合信号分离成低频复合信号和高频复合信号。低频复合信号是低频亮度信号。使用2D梳状滤波器将高频复合信号分离成高频亮度信号和色度信号。亮度信号等于低频亮度信号加上高频亮度信号。因此，本发明的2D YC分离装置可以完美地分离复合信号，以获得更好的亮度信号和色度信号。本发明的YC分离系统还包括3D YC分离装置和运动检测装置，以获得精确的亮度信号和色度信号。

13. 发明授权

US07728910B2 2D YC separation device and YC separation system 失效
标题翻译： 2D YC分离装置和YC分离系统
公开(公告)号：US07728910B2
公开(公告)日：2010-06-01
申请号：US11438919
申请日：2006-05-23
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： The invention relates to a 2D YC separation device and YC separation system for separating a composite signal into a luma signal (Y) and a chroma signal (C). Firstly, the 2D YC separation device utilizes a low-pass filter to separate the composite signal into a low-frequency composite signal and a high-frequency composite signal. The low-frequency composite signal is a low-frequency luma signal. A 2D comb filter is utilized to separate the high-frequency composite signal into a high-frequency luma signal and the chroma signal. The luma signal is equal to the low-frequency luma signal plus the high-frequency luma signal. Therefore, the 2D YC separation device of the present invention can perfectly separate the composite signal so as to obtain a better luma signal and chroma signal. The YC separation system of the present invention further comprises a 3D YC separation device and a motion detection device, so as to obtain a precise luma signal and chroma signal.
摘要翻译：本发明涉及用于将复合信号分离为亮度信号（Y）和色度信号（C）的2D YC分离装置和YC分离装置。首先，2D YC分离装置利用低通滤波器将复合信号分离成低频复合信号和高频复合信号。低频复合信号是低频亮度信号。使用2D梳状滤波器将高频复合信号分离成高频亮度信号和色度信号。亮度信号等于低频亮度信号加上高频亮度信号。因此，本发明的2D YC分离装置可以完美地分离复合信号，以获得更好的亮度信号和色度信号。本发明的YC分离系统还包括3D YC分离装置和运动检测装置，以获得精确的亮度信号和色度信号。

14. 发明申请

US20090103820A1 METHOD AND DEVICE FOR ENCODING IMAGE DATA 有权
标题翻译：用于编码图像数据的方法和装置
公开(公告)号：US20090103820A1
公开(公告)日：2009-04-23
申请号：US11874331
申请日：2007-10-18
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： G06K9/46
CPC分类号： H04N19/152 , H04N19/115 , H04N19/149 , H04N19/176
摘要： An encoding method to encode image data comprising a sequence of blocks with a predetermined compression rate in one pass is disclosed. The blocks are divided into two sets, a first set and a second set. The blocks in the first set are encoded within the sum of an available bit length and a predetermined lending bit length. The blocks are encoded in the second set within the available bit length. A lending bit length is updated when the current bit length is larger than the available bit length. The left bit length is updated when the current bit length is not larger than the available bit length. The left bit length and the lending bit length are adjusted when the current block is in the second set, the lending bit length is positive and the left bit length is larger than a predetermined threshold.
摘要翻译：公开了一种在一次通过中以预定的压缩率编码包括块序列的图像数据的编码方法。块被分成两组，第一组和第二组。第一组中的块在可用比特长度和预定的借位比特长度之和内编码。块在可用位长度内在第二组中编码。当当前位长度大于可用位长度时，更新借位位长度。当当前位长度不大于可用位长度时，左位长度被更新。当当前块位于第二组中时，左位长度和借位位长度被调整，借位位长度为正，左位长度大于预定阈值。

15. 发明申请

US20090074059A1 ENCODING METHOD AND DEVICE FOR IMAGE DATA 审中-公开
标题翻译：用于图像数据的编码方法和装置
公开(公告)号：US20090074059A1
公开(公告)日：2009-03-19
申请号：US11856732
申请日：2007-09-18
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： H04N7/24
CPC分类号： H04N19/40 , H04N19/124 , H04N19/129 , H04N19/176 , H04N19/48 , H04N19/60
摘要： An encoding method for encoding image data comprising a plurality of pixels is disclosed. Each pixel corresponds to a pixel value. First coefficients in different frequencies which are transformed and quantized from a first set of pixel values are provided. Second coefficients in different frequencies which are transformed and quantized from a second set of pixel values are provided. A bitstream by encoding the first coefficients with interleaving the second coefficients according to a predetermined order is generated. The predetermined order to encode the first coefficients with interleaving the second coefficients is from the first coefficients and the second coefficients in the lowest frequency to the first coefficients and the second coefficients in the highest frequency.
摘要翻译：公开了一种用于编码包括多个像素的图像数据的编码方法。每个像素对应于像素值。提供了从第一组像素值变换和量化的不同频率的第一系数。提供了从第二组像素值变换和量化的不同频率的第二系数。产生通过根据预定顺序对第一系数进行编码来对第二系数进行编码的比特流。对第一系数进行编码的预定顺序是从第一系数和最低频中的第二系数到第一系数和最高频率的第二系数。

16. 发明申请

US20090060363A1 SYSTEM AND METHOD FOR IMAGE COMPRESSION 审中-公开
标题翻译：用于图像压缩的系统和方法
公开(公告)号：US20090060363A1
公开(公告)日：2009-03-05
申请号：US11847387
申请日：2007-08-30
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： G06K9/36
CPC分类号： H04N19/154 , H04N19/12 , H04N19/146 , H04N19/172
摘要： A system of image compression is disclosed. The system comprises a first encoder, a second encoder and a determining device. The determining device further comprises a quality lost calculator, a code length expense calculator and a selector. The first encoder generates a first coded data. The second encoder generates a second coded data. Next, the quality lost calculator calculates quality lost values of the first coded data and the second coded data. The code length expense calculator calculates code length expense of the first coded data and the second coded data. Finally, the selector calculates total expense values of the first coded data and the second coded data and selectively outputs one of the first coded data and the second coded data according to the total expense values of the first coded data and the second coded data.
摘要翻译：公开了一种图像压缩系统。该系统包括第一编码器，第二编码器和确定装置。确定装置还包括质量损失计算器，代码长度费用计算器和选择器。第一编码器生成第一编码数据。第二编码器生成第二编码数据。接下来，质量损失计算器计算第一编码数据和第二编码数据的质量损失值。代码长度费用计算器计算第一编码数据和第二编码数据的代码长度费用。最后，选择器计算第一编码数据和第二编码数据的总费用值，并根据第一编码数据和第二编码数据的总费用值有选择地输出第一编码数据和第二编码数据中的一个。

17. 发明申请

US20080304568A1 METHOD FOR MOTION-COMPENSATED FRAME RATE UP-CONVERSION 审中-公开
标题翻译：运动补偿帧率上变换的方法
公开(公告)号：US20080304568A1
公开(公告)日：2008-12-11
申请号：US11761015
申请日：2007-06-11
申请人： Fang Chen Chang
发明人： Fang Chen Chang
IPC分类号： H04B1/66
CPC分类号： H04N7/0115 , H04N7/0127 , H04N7/014
摘要： The method for motion-compensated frame rate up-conversion includes the step of detecting a film-mode video signal comprising a sequence of 3-2 pull-down frames, and extracting a sequence of feature frames from the sequence of 3-2 pull-down frames. In addition, a motion vector for each pair of the sequence of feature frames is calculated. Also, a plurality of intermediate frames between each pair of the sequence of feature frames is interpolated based on the corresponding motion vector.
摘要翻译：用于运动补偿帧速率上变换的方法包括检测包括3-2下拉帧序列的胶片模式视频信号的步骤，并且从3-2拉出帧序列中提取特征帧序列，下框。此外，计算每对特征帧序列的运动矢量。此外，基于相应的运动矢量，内插每对特征帧序列之间的多个中间帧。

18. 发明申请

US20080240243A1 Method for estimating a motion vector 审中-公开
标题翻译：估计运动矢量的方法
公开(公告)号：US20080240243A1
公开(公告)日：2008-10-02
申请号：US11730232
申请日：2007-03-30
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： H04B1/66
CPC分类号： H04N19/51 , H04N19/61
摘要： A method for estimating a motion vector is provided. The method is for estimating a motion vector for a current block with reference to a number of candidate blocks in a reference frame. The method includes the steps of: firstly, determine an error between the current block and each candidate blocks according to an error function. The error function combining a DC difference and a couple of AC differences between the current block and each candidate blocks. Then, determine the candidate block having the lowest error as a matching block of the current block. Next, determine the motion vector for the current block based on a displacement between the current block and the matching block.
摘要翻译：提供了一种用于估计运动矢量的方法。该方法用于参考参考帧中的多个候选块来估计当前块的运动矢量。该方法包括以下步骤：首先根据误差函数确定当前块与每个候选块之间的误差。误差函数组合了当前块和每个候选块之间的DC差异和一对AC差异。然后，将具有最低误差的候选块确定为当前块的匹配块。接下来，基于当前块和匹配块之间的位移来确定当前块的运动矢量。

19. 发明申请

US20080074538A1 De-interlacing method and apparatus 有权
标题翻译：去隔行方法和装置
公开(公告)号：US20080074538A1
公开(公告)日：2008-03-27
申请号：US11819062
申请日：2007-06-25
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： H04N7/01
CPC分类号： H04N7/012 , H04N7/0142
摘要： A de-interlacing method is applied to a to-be-de-interlaced field including display pixels of display lines and to-be-interpolated pixels of to-be-interpolated lines. First, a corresponding edge-direction value of each of edge pixels in the to-be-de-interlaced field is determined. Next, it is judged whether one of the display pixels near each to-be-interpolated pixel has a corresponding edge-direction value so that a judgement result is obtained. Then, a corresponding edge-direction value of each to-be-interpolated pixel is set according to the corresponding edge-direction values of specific display pixels of the display pixels near the to-be-interpolated pixel if the judgement result is affirmative. Finally, a corresponding display pixel pair of up and down display lines near each to-be-interpolated pixel is selected according to the corresponding edge-direction value of each to-be-interpolated pixel so that a luminance value and a chrominance value of the to-be-interpolated pixel are calculated.
摘要翻译：去隔行扫描方法被应用于包括显示行的显示像素和待插入线的待内插像素的去隔行场。首先，确定待去隔行扫描场中的每个边缘像素的相应边缘方向值。接下来，判断每个待内插像素附近的显示像素之一是否具有对应的边缘方向值，从而获得判断结果。然后，如果判断结果是肯定的，则根据待被内插像素附近的显示像素的特定显示像素的相应边缘方向值来设置每个待插值像素的相应边缘方向值。最后，根据每个待内插像素的对应边缘方向值选择每个待插值像素附近的对应的显示像素对的上下显示线，使得亮度值和色差值计算待内插像素。

20. 发明授权

US08358850B2 Determination method of edge direction 有权
标题翻译：边缘方向的确定方法
公开(公告)号：US08358850B2
公开(公告)日：2013-01-22
申请号：US11902298
申请日：2007-09-20
申请人： Fang-Chen Chang
发明人： Fang-Chen Chang
IPC分类号： G06K9/48
CPC分类号： G06K9/4604
摘要： An edge direction determination method for a pixel of a display picture. The display picture has a corresponding edge map. The pixel has corresponding pixel direction pairs. First, in step (a), it is judged whether the pixel is an edge pixel according to the edge map. Next, in step (b), it is judged whether the pixel has a right-inclined edge direction or a left-inclined edge direction when the pixel is the edge pixel. Then, in step (c), the edge direction of the pixel is determined according to specific pixel direction pairs corresponding to the same inclined edge direction if a judged result in step (b) is affirmative. Finally, in step (d), if the judged result in step (b) is negative, it is judged whether the pixel has a horizontal edge direction or a vertical edge direction.
摘要翻译：一种用于显示图像的像素的边缘方向确定方法。显示画面具有相应的边缘图。像素具有对应的像素方向对。首先，在步骤（a）中，根据边缘图判断像素是否为边缘像素。接下来，在步骤（b）中，当像素是边缘像素时，判断像素是否具有右倾斜边缘方向或左倾斜边缘方向。然后，在步骤（c）中，如果步骤（b）的判断结果是肯定的，则根据与相同倾斜边缘方向对应的特定像素方向对，确定像素的边缘方向。最后，在步骤（d）中，如果步骤（b）中的判断结果为否定，则判断像素是水平边缘方向还是垂直方向。

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