-
公开(公告)号：US20130195179A1
公开(公告)日：2013-08-01
申请号：US13877068
申请日：2011-08-26
IPC分类号： H04N7/26
CPC分类号： H04N19/176 , H04N19/124 , H04N19/149 , H04N19/152
摘要： An image processor includes an encoder that performs encoding including quantization on an image signal and a controller that controls a quantization parameter in the quantization. The controller determines a quantization parameter of a currently target macroblock, based on a difference between a target amount of code for a specified number of macroblocks and an amount of code generated for a predetermined number of macroblocks processed immediately before. The controller variably sets the specified number.
摘要翻译： 图像处理器包括编码器，其执行包括对图像信号的量化的编码和控制量化中的量化参数的控制器。 控制器基于针对特定数量的宏块的目标代码量与针对刚才处理的预定数量的宏块生成的代码量之间的差异，确定当前目标宏块的量化参数。 控制器可变地设置指定的数字。
-
公开(公告)号：US20120287990A1
公开(公告)日：2012-11-15
申请号：US13522122
申请日：2010-11-29
IPC分类号： H04N7/12
CPC分类号： H04N19/174 , H04N19/124 , H04N19/147 , H04N19/149 , H04N19/196 , H04N19/61
摘要： An image processor includes an encoder that performs encoding including quantization on an image signal and a controller that controls a quantization parameter for quantization. The controller determines a quantization parameter of a currently target macroblock as an increase or decrease from a reference value, and determines the increase or decrease based on a difference between a target amount of code for a predetermined number of macroblocks fewer than a total number of macroblocks within one frame and a generated amount of code of the predetermined number of macroblocks processed immediately before. The controller can further determine the increase or decrease, based on pixel information of the currently target macroblock such as an activity evaluation value.
摘要翻译： 图像处理器包括编码器，该编码器执行包括对图像信号的量化的编码以及控制量化量化参数的控制器。 控制器根据参考值确定当前目标宏块的量化参数为增加或减小，并且基于小于总宏块数的预定数量的宏块的目标代码量之间的差确定增加或减小 并且在紧接着之前处理预定数量的宏块的生成的代码量。 控制器可以基于诸如活动评估值的当前目标宏块的像素信息来进一步确定增加或减少。
-
公开(公告)号：US08712176B2
公开(公告)日：2014-04-29
申请号：US13638299
申请日：2010-11-29
IPC分类号： G06K9/00
CPC分类号： H04N19/146 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/176
摘要： An image processor that achieves reduction in delay amount, in comparison with code amount control GOP by GOP or frame by frame. The controller includes a first processing unit that obtains a generated amount of code used for a first predetermined number of immediately preceding macroblocks, a second processing unit that obtains an allowable amount of code available for a third predetermined number of immediately subsequent macroblocks including a currently target macroblock, based on a target amount of code for not more than a second predetermined number of macroblocks less than a total number of macroblocks included in one frame, and the generated amount of code obtained by the first processing unit, a third processing unit that obtains an expected amount of code expected to be used for the third predetermined number of macroblocks, and a fourth processing unit that sets a quantization parameter of a currently target macroblock, based on the allowable amount of code obtained by the second processing unit and the expected amount of code obtained by the third processing unit.
摘要翻译： 与GOP或逐帧的代码量控制GOP相比，实现延迟量减少的图像处理器。 控制器包括：第一处理单元，其获得用于第一预定数量的紧邻的前一个宏块的生成的代码量;第二处理单元，其获得可用于第三预定数量的紧随其后的宏块的可允许的代码量，包括当前目标 宏块，基于小于包括在一帧中的宏块的总数的第二预定数量的宏块的代码的目标量以及由所述第一处理单元获得的所生成的代码量;第三处理单元，其获得 期望用于第三预定数量的宏块的预期代码量;以及第四处理单元，其基于由第二处理单元获得的可允许的代码量和预期量来设置当前目标宏块的量化参数 的第三处理单元获得的代码。
-
公开(公告)号：US20130028534A1
公开(公告)日：2013-01-31
申请号：US13638299
申请日：2010-11-29
IPC分类号： G06K9/00
CPC分类号： H04N19/146 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/176
摘要： An image processor that achieves reduction in delay amount, in comparison with code amount control GOP by GOP or frame by frame, is obtained. The controller includes a first processing unit that obtains a generated amount of code used for a first predetermined number of immediately preceding macroblocks, a second processing unit that obtains an allowable amount of code available for a third predetermined number of immediately subsequent macroblocks including a currently target macroblock, based on a target amount of code for not more than a second predetermined number of macroblocks less than a total number of macroblocks included in one frame, and the generated amount of code obtained by the first processing unit, a third processing unit that obtains an expected amount of code expected to be used for the third predetermined number of macroblocks, and a fourth processing unit that sets a quantization parameter of a currently target macroblock, based on the allowable amount of code obtained by the second processing unit and the expected amount of code obtained by the third processing unit.
摘要翻译： 获得与GOP或逐帧的代码量控制GOP相比实现延迟量减小的图像处理器。 控制器包括：第一处理单元，其获得用于第一预定数量的紧邻的前一个宏块的生成的代码量;第二处理单元，其获得可用于第三预定数量的紧随其后的宏块的可允许的代码量，包括当前目标 宏块，基于小于包括在一帧中的宏块的总数的第二预定数量的宏块的代码的目标量以及由所述第一处理单元获得的所生成的代码量;第三处理单元，其获得 期望用于第三预定数量的宏块的预期代码量;以及第四处理单元，其基于由第二处理单元获得的可允许的代码量和预期量来设置当前目标宏块的量化参数 的第三处理单元获得的代码。
-
5.发明申请IMAGE CODING DEVICE, IMAGE CODING/DECODING SYSTEM, IMAGE CODING METHOD, AND IMAGE DISPLAY METHOD 审中-公开图像编码装置，图像编码/解码系统，图像编码方法和图像显示方法公开(公告)号：US20120307881A1
公开(公告)日：2012-12-06
申请号：US13520306
申请日：2010-11-09
IPC分类号： H04N11/02
CPC分类号： H04N19/61 , H04N19/115 , H04N19/159 , H04N19/176
摘要： A device preventing degradation of image quality caused by coding of a moving image. A compression coder performs compression coding on image data of respective pictures constituting an input moving image to generate inter-coded data or intra-coded data, and outputs the coded data to a wire or wireless transmission line. In a case of causing the compression coder to generate the inter-coded data, a controller sets a code amount equal to or smaller than a maximum code amount given by a value obtained by multiplying an upper limit transmission rate of a transmission line and a permissible time allocated per picture based on a picture rate of the input moving image. Meanwhile, in a case of causing the compression coder to generate the intra-coded data, the controller sets a code amount larger than the maximum code amount and equal to or smaller than N-times (N is an integer equal to or larger than two) the maximum code amount.
摘要翻译： 防止由运动图像的编码引起的图像质量劣化的装置。 压缩编码器对构成输入运动图像的各图像的图像数据进行压缩编码，生成帧间编码数据或帧内编码数据，并将编码数据输出到有线或无线传输线路。 在使压缩编码器生成编码间数据的情况下，控制器设定等于或小于通过将传输线的上限传输速率和允许 基于输入运动图像的图像速率分配每个图像的时间。 同时，在使压缩编码器生成帧内编码数据的情况下，控制器设定比最大码量大的码量，并且等于或小于N次（N是等于或大于2的整数 ）最大代码量。
-
公开(公告)号：US20120294361A1
公开(公告)日：2012-11-22
申请号：US13575373
申请日：2011-01-18
IPC分类号： H04N7/32
CPC分类号： H04N19/176 , H04N19/107 , H04N19/172 , H04N19/61
摘要： An image coding technique for suppressing degradation in image quality, in which the time and space where intra macroblocks appear are dispersed. A block count determination part determines the number of intra macroblocks to be allocated in each frame. A position determination part arranges the intra macroblocks at random positions in each frame. A coding part performs coding on the basis of the number of intra macroblocks to be allocated in a time direction, which is determined by the block count determination part, and the arrangement of the intra macroblocks in a spatial direction, which is determined by the position determination part, to thereby output compressed image data.
摘要翻译： 用于抑制图像质量劣化的图像编码技术，其中内部宏块出现的时间和空间被分散。 块计数确定部分确定在每个帧中要分配的帧内宏块的数量。 位置确定部件将帧内宏块排列在每帧中的随机位置。 编码部分基于由块计数确定部分确定的时间方向上要分配的帧内宏块的数量以及由位置确定的空间方向上的帧内宏块的布置来执行编码 确定部分，从而输出压缩图像数据。
-
公开(公告)号：US09661333B2
公开(公告)日：2017-05-23
申请号：US13522122
申请日：2010-11-29
IPC分类号： H04N11/04 , H04N7/12 , H04N19/174 , H04N19/147 , H04N19/196 , H04N19/149 , H04N19/61 , H04N19/124
CPC分类号： H04N19/174 , H04N19/124 , H04N19/147 , H04N19/149 , H04N19/196 , H04N19/61
摘要： An image processor includes an encoder that performs encoding including quantization on an image signal and a controller that controls a quantization parameter for quantization. The controller determines a quantization parameter of a currently target macroblock as an increase or decrease from a reference value, and determines the increase or decrease based on a difference between a target amount of code for a predetermined number of macroblocks fewer than a total number of macroblocks within one frame and a generated amount of code of the predetermined number of macroblocks processed immediately before. The controller can further determine the increase or decrease, based on pixel information of the currently target macroblock such as an activity evaluation value.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.168 秒)
