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公开(公告)号：US07483083B2
公开(公告)日：2009-01-27
申请号：US10822742
申请日：2004-04-13
申请人： Wei Li , Chung-Tao Chu , Andy Chao Hung
发明人： Wei Li , Chung-Tao Chu , Andy Chao Hung
CPC分类号： H04N5/20
摘要： A method for enhancing video or other multimedia in order to achieve a closer-to-movie theater viewing experience. The enhancement method can be applied to YUV or other video formats which are used for TV or digital media. The method provides a curve with at least one inflection point such that at least one region has a concave upward arc and another region has a concave downward arc. The improved curve provides relatively less contrast in relatively dark regions and relatively more contrast in relatively bright regions. By taking into account the visual sensitivity to various luminance levels, a neutral point is selected to be located at a relatively dark point. To the darker side of the neutral point, luminance is suppressed. To the brighter side of the neutral point, luminance is enhanced. This luminance-mapping curve is applied to the luminance (Y) signal so as to enhance both brightness and contrast.
摘要翻译： 一种用于增强视频或其他多媒体以便实现更接近电影的剧院观看体验的方法。 该增强方法可以应用于用于电视或数字媒体的YUV或其他视频格式。 该方法提供具有至少一个拐点的曲线，使得至少一个区域具有凹入的向上圆弧，而另一区域具有凹入的向下的弧。 改进的曲线在相对较暗的区域中提供相对较小的对比度，并且在相对较亮的区域中提供相对更多的对比 通过考虑对各种亮度水平的视觉灵敏度，选择中性点位于相对较暗的位置。 在中性点的较暗侧，亮度被抑制。 在中性点的较亮侧，亮度提高。 该亮度映射曲线被应用于亮度（Y）信号，以便增强亮度和对比度。
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公开(公告)号：US20110188749A1
公开(公告)日：2011-08-04
申请号：US12748058
申请日：2010-03-26
申请人： Lihua ZHU , Haihua Wu , Chung-Tao Chu , Richard Hua
发明人： Lihua ZHU , Haihua Wu , Chung-Tao Chu , Richard Hua
CPC分类号： G06T5/003
摘要： An image processing method for boundary resolution enhancement is disclosed. Firstly, an image is transferred into an image layer. Noise of the image layer is removed by a bilateral filter and crisp edges are retained at the same time. Moreover, the image layer is interpolated by an interpolation filter for resolution enhancement. The image processing method of the present invention can lower the image blur degree substantially, enhance the image resolution and be widely implemented in all sorts of image/video processing hardware devices.
摘要翻译： 公开了一种用于边界分辨率增强的图像处理方法。 首先，图像被转移到图像层中。 图像层的噪声被双边滤波器去除，同时保留了清晰的边缘。 此外，通过用于分辨率增强的内插滤波器来内插图像层。 本发明的图像处理方法可以显着降低图像模糊度，提高图像分辨率，并且可以广泛地实现各种图像/视频处理硬件设备。
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公开(公告)号：US08335394B2
公开(公告)日：2012-12-18
申请号：US12748058
申请日：2010-03-26
申请人： Lihua Zhu , Haihua Wu , Chung-Tao Chu , Richard Hua
发明人： Lihua Zhu , Haihua Wu , Chung-Tao Chu , Richard Hua
IPC分类号： G06K9/40
CPC分类号： G06T5/003
摘要： An image processing method for boundary resolution enhancement is disclosed. Firstly, an image is transferred into an image layer. Noise of the image layer is removed by a bilateral filter and crisp edges are retained at the same time. Moreover, the image layer is interpolated by an interpolation filter for resolution enhancement. The image processing method of the present invention can lower the image blur degree substantially, enhance the image resolution and be widely implemented in all sorts of image/video processing hardware devices.
摘要翻译： 公开了一种用于边界分辨率增强的图像处理方法。 首先，图像被转移到图像层中。 图像层的噪声被双边滤波器去除，同时保留了清晰的边缘。 此外，通过用于分辨率增强的内插滤波器来内插图像层。 本发明的图像处理方法可以显着降低图像模糊度，提高图像分辨率，并且可以广泛地实现各种图像/视频处理硬件设备。
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公开(公告)号：US20080107184A1
公开(公告)日：2008-05-08
申请号：US11556161
申请日：2006-11-02
IPC分类号： H04N7/52
CPC分类号： H04N19/436 , H04N19/44 , H04N19/577
摘要： A method and an apparatus for performing multi-threaded video decoding are disclosed. The method takes use of a multi-threaded scheme to process an encoded picture stream on a picture by picture basis. In the method, multiple threads are used for performing video decoding at the same time, such as one thread for the operation of parsing input bits into syntax elements of one picture implemented by the first thread, another thread for the operation of decoding the parsed syntax elements of another picture into pixel values implemented by the second thread, and the other threads for the operations of the non-reference picture, such as bidirectional predictive picture, including parsing input bits into syntax elements and the subsequent operation of decoding the parsed syntax elements into pixel values. Therefore, the decoding speed is substantially increased, and the decoding efficiency is enhanced.
摘要翻译： 公开了一种用于执行多线程视频解码的方法和装置。 该方法利用多线程方案来逐个处理图像流。 在该方法中，多个线程同时用于执行视频解码，例如用于将输入比特分解成由第一线程实现的一个图像的语法元素的操作的一个线程，用于解码解析语法的操作的另一线程 将另一图像的元素转换成由第二线程实现的像素值，以及用于非参考图像的操作的其他线程，诸如双向预测图像，包括将输入比特解析成语法元素，以及随后的解析解析语法元素的操作 转换为像素值。 因此，解码速度显着增加，解码效率提高。
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公开(公告)号：US06320987B1
公开(公告)日：2001-11-20
申请号：US09174817
申请日：1998-10-16
申请人： Chung-Tao Chu
发明人： Chung-Tao Chu
IPC分类号： G09G536
CPC分类号： H04N19/82 , H04N19/117 , H04N19/124 , H04N19/137 , H04N19/18 , H04N19/182 , H04N19/61
摘要： An apparatus for processing a video signal is described, comprising a means for receiving a nonreconstructed, video residue image, a means for selecting a first pixel to be processed, a means for selecting a second and third pixel, the second and third pixels being contiguous to said first pixel, and positioned right and left of the first pixel, a means for determining first, second, and third weighting factors for the first, second and third pixels respectively, a means for computing a first result by multiplying the first weighting factor with the value of said first pixel, a means for computing a second result by multiplying the second weighting factor with the value of the second pixel, a means for computing a third result by multiplying the third weighting factor with the value of the third pixel; and a means for computing a new value for said first pixel by adding the first, second and third results together.
摘要翻译： 描述了一种用于处理视频信号的装置，包括用于接收非重构的视频残差图像的装置，用于选择要处理的第一像素的装置，用于选择第二和第三像素的装置，第二和第三像素是连续的 到所述第一像素，并且位于第一像素的右侧和左侧，分别用于确定第一，第二和第三像素的第一，第二和第三加权因子的装置，用于通过将第一加权因子乘以第一加权因子 利用所述第一像素的值，通过将第二加权因子与第二像素的值相乘来计算第二结果的装置，用于通过将第三加权因子与第三像素的值相乘来计算第三结果的装置; 以及用于通过将第一，第二和第三结果相加来计算所述第一像素的新值的装置。
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公开(公告)号：US09014275B2
公开(公告)日：2015-04-21
申请号：US13401824
申请日：2012-02-21
IPC分类号： H04N7/12 , H04N19/436 , H04N19/44 , H04N19/577
CPC分类号： H04N19/436 , H04N19/44 , H04N19/577
摘要： A method and an apparatus for performing multi-threaded video decoding are disclosed. The method takes use of a multi-threaded scheme to process an encoded picture stream on a picture by picture basis. In the method, multiple threads are used for performing video decoding at the same time, such as one thread for the operation of parsing input bits into syntax elements of one picture implemented by the first thread, another thread for the operation of decoding the parsed syntax elements of another picture into pixel values implemented by the second thread, and the other threads for the operations of the non-reference picture, such as bidirectional predictive picture, including parsing input bits into syntax elements and the subsequent operation of decoding the parsed syntax elements into pixel values. Therefore, the decoding speed is substantially increased, and the decoding efficiency is enhanced.
摘要翻译： 公开了一种用于执行多线程视频解码的方法和装置。 该方法利用多线程方案来逐个处理图像流。 在该方法中，多个线程同时用于执行视频解码，例如用于将输入比特分解成由第一线程实现的一个图像的语法元素的操作的一个线程，用于解码解析语法的操作的另一线程 将另一图像的元素转换成由第二线程实现的像素值，以及用于非参考图像的操作的其他线程，诸如双向预测图像，包括将输入比特解析成语法元素，以及随后的解析解析语法元素的操作 转换为像素值。 因此，解码速度显着增加，解码效率提高。
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公开(公告)号：US20120147956A1
公开(公告)日：2012-06-14
申请号：US13401824
申请日：2012-02-21
IPC分类号： H04N7/32
CPC分类号： H04N19/436 , H04N19/44 , H04N19/577
摘要： A method and an apparatus for performing multi-threaded video decoding are disclosed. The method takes use of a multi-threaded scheme to process an encoded picture stream on a picture by picture basis. In the method, multiple threads are used for performing video decoding at the same time, such as one thread for the operation of parsing input bits into syntax elements of one picture implemented by the first thread, another thread for the operation of decoding the parsed syntax elements of another picture into pixel values implemented by the second thread, and the other threads for the operations of the non-reference picture, such as bidirectional predictive picture, including parsing input bits into syntax elements and the subsequent operation of decoding the parsed syntax elements into pixel values. Therefore, the decoding speed is substantially increased, and the decoding efficiency is enhanced.
摘要翻译： 公开了一种用于执行多线程视频解码的方法和装置。 该方法利用多线程方案来逐个处理图像流。 在该方法中，多个线程同时用于执行视频解码，例如用于将输入比特分解成由第一线程实现的一个图像的语法元素的操作的一个线程，用于解码解析语法的操作的另一线程 将另一图像的元素转换成由第二线程实现的像素值，以及用于非参考图像的操作的其他线程，诸如双向预测图像，包括将输入比特解析成语法元素，以及随后的解析解析语法元素的操作 转换为像素值。 因此，解码速度显着增加，解码效率提高。
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公开(公告)号：US08121196B2
公开(公告)日：2012-02-21
申请号：US11556161
申请日：2006-11-02
IPC分类号： H04B1/66
CPC分类号： H04N19/436 , H04N19/44 , H04N19/577
摘要： A method and an apparatus for performing multi-threaded video decoding are disclosed. The method takes use of a multi-threaded scheme to process an encoded picture stream on a picture by picture basis. In the method, multiple threads are used for performing video decoding at the same time, such as one thread for the operation of parsing input bits into syntax elements of one picture implemented by the first thread, another thread for the operation of decoding the parsed syntax elements of another picture into pixel values implemented by the second thread, and the other threads for the operations of the non-reference picture, such as bidirectional predictive picture, including parsing input bits into syntax elements and the subsequent operation of decoding the parsed syntax elements into pixel values. Therefore, the decoding speed is substantially increased, and the decoding efficiency is enhanced.
摘要翻译： 公开了一种用于执行多线程视频解码的方法和装置。 该方法利用多线程方案来逐个处理图像流。 在该方法中，多个线程同时用于执行视频解码，例如用于将输入比特分解成由第一线程实现的一个图像的语法元素的操作的一个线程，用于解码解析语法的操作的另一线程 将另一图像的元素转换成由第二线程实现的像素值，以及用于非参考图像的操作的其他线程，诸如双向预测图像，包括将输入比特解析成语法元素，以及随后的解析解析语法元素的操作 转换为像素值。 因此，解码速度显着增加，解码效率提高。
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公开(公告)号：US06850566B2
公开(公告)日：2005-02-01
申请号：US09937058
申请日：2001-02-20
申请人： Chung-Tao Chu , Wei Ding
发明人： Chung-Tao Chu , Wei Ding
CPC分类号： H04N19/42 , H04N19/126 , H04N19/61
摘要： A system for improving the speed of the video encoding process by decreasing the number of cycles to perform the quantization. The disclosed system achieves the improvement through use of parallel processor such as one having a Single Instruction, Multiple Data (SIMD) architecture. Concurrent processing during one instruction cycle is accomplished, thereby leading overall to the use of fewer instruction cycles. In the preferred embodiment, an MMX instruction set is used for executing four quantization in parallel. The disclosed system also achieves a higher precision of the quantization during the encoding of video signals with the SIMD architecture by using a larger multiplier and larger shift factor.
摘要翻译： 一种用于通过减少执行量化的周期数来提高视频编码处理速度的系统。 所公开的系统通过使用诸如具有单指令，多数据（SIMD）架构的并行处理器来实现改进。 在一个指令周期内实现并行处理，从而导致使用更少的指令周期。 在优选实施例中，MMX指令集用于并行执行四个量化。 所公开的系统还通过使用更大的乘数和较大的移位因子，在利用SIMD架构编码视频信号期间实现了更高的量化精度。
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