公开(公告)号：US06580755B1

公开(公告)日：2003-06-17

申请号：US09659825

申请日：2000-09-11

申请人： Hiroyori Morimoto ,  Akihiro Watabe

发明人： Hiroyori Morimoto ,  Akihiro Watabe

IPC分类号： H04N712

CPC分类号： H04N19/192 ,  H04N19/124 ,  H04N19/15 ,  H04N19/172 ,  H04N19/196 ,  H04N19/61

摘要： An encoder apparatus transmits encoded data without missing any part of it. The apparatus includes: an encoder for compressing and encoding multiple moving pictures and calculating the number of bits used to obtain encoded data by encoding each said picture to be encoded; original picture data storage for storing the pictures to be encoded thereon; encoded data storage for storing the encoded data thereon; and bit number comparator for obtaining a threshold value of the number of bits available for each said picture to be encoded and determining whether or not the bit number exceeds the threshold value. If the encoder has determined that there will be enough time for the encoder to re-encode a current one of the pictures to be encoded before encoding of a next one of the pictures is started and if the comparator has found the bit number exceeding the threshold value, then the encoder re-encodes the current picture by changing encoding parameters in such a manner as to reduce the bit number.

摘要翻译： 编码器装置发送编码数据而不丢失其任何部分。 该装置包括：编码器，用于对多个运动图像进行压缩和编码，并通过编码每个要编码的图像来计算用于获得编码数据的位数; 用于存储要在其上编码的图像的原始图像数据存储器; 编码数据存储器，用于存储编码数据; 以及比特数比较器，用于获得可用于每个所述要编码的图像的比特数的阈值，并确定比特数是否超过阈值。 如果编码器已经确定在编码下一个图像的编码开始之前编码器将有足够的时间重新编码要编码的当前图像之一，并且如果比较器已经发现比特数超过阈值 值，则编码器通过改变编码参数以减少比特数来重新编码当前图像。

公开(公告)号：US20080260040A1

公开(公告)日：2008-10-23

申请号：US11876122

申请日：2007-10-22

申请人： Yen-I OUYANG ,  Hiroyori MORIMOTO

发明人： Yen-I OUYANG ,  Hiroyori MORIMOTO

IPC分类号： H04N7/24

CPC分类号： H04N5/21 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N5/911 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/86

摘要： A method for filtering video noise is adapted to filter noise of a plurality of images of a video stream. Each image includes a plurality of pixels. The method includes the following steps: (a) dividing an image into a plurality of macroblocks; (b) classifying the macroblocks into a plurality of smooth macroblocks and a plurality of noisy macroblocks, and outputting the pixels of the smooth macroblocks; (c) classifying the pixels of each noisy macroblock into an edge pixel group and a non-edge pixel group; (d) directing the non-edge pixel group to a spatial vertical filtering and subsequently to a temporal filtering; and (e) directing the yet to be outputted pixels to a spatial horizontal filtering and subsequently outputting the same. Also disclosed are a device, an integrated circuit and an encoder for filtering video noise.

摘要翻译： 一种用于滤波视频噪声的方法适用于滤除视频流的多个图像的噪声。 每个图像包括多个像素。 该方法包括以下步骤：（a）将图像划分为多个宏块; （b）将宏块分类为多个平滑宏块和多个噪声宏块，并输出平滑宏块的像素; （c）将每个噪声宏块的像素分类为边缘像素组和非边缘像素组; （d）将非边缘像素组引导到空间垂直滤波，然后指向时间滤波; 和（e）将尚未被输出的像素引导到空间水平滤波并随后输出。 还公开了一种用于滤波视频噪声的装置，集成电路和编码器。