公开(公告)号：US20110249730A1

公开(公告)日：2011-10-13

申请号：US13082929

申请日：2011-04-08

申请人： Jae-won YOON ,  Sung-bum PARK ,  Hae-young JUN ,  Shin-wook KANG ,  Dai-woong CHOI

发明人： Jae-won YOON ,  Sung-bum PARK ,  Hae-young JUN ,  Shin-wook KANG ,  Dai-woong CHOI

IPC分类号： H04N7/48

CPC分类号： H04N19/593

摘要： A method and apparatus for generating video packets and a method and apparatus for restoring video are provided. The method of generating video packets includes: generating at least one pixel block consisting of at least one reference pixel and a plurality of neighboring pixels adjacent to the at least one reference pixel from pixels of a video frame; replacing pixel values of the neighboring pixels in the at least one pixel block with pixel difference values, which are difference values between a pixel value of one of pixels adjacent to the neighboring pixels and the pixel values of the neighboring pixels; generating packets so that a pixel value of the at least one reference pixel and the pixel difference values of the neighboring pixels are allocated to different packets according to positions of the pixels; and performing entropy coding of some of the packets including the pixel difference values of the neighboring pixels.

摘要翻译： 提供了一种用于产生视频分组的方法和装置以及用于恢复视频的方法和装置。 产生视频分组的方法包括：从视频帧的像素生成由与至少一个参考像素相邻的至少一个参考像素和多个相邻像素组成的至少一个像素块; 用像素差值代替所述至少一个像素块中的相邻像素的像素值，所述像素差值是与相邻像素相邻的一个像素的像素值与相邻像素的像素值之间的差值; 生成分组，使得根据像素的位置将所述至少一个参考像素的像素值和相邻像素的像素差值分配给不同的分组; 并执行包括相邻像素的像素差值的一些分组的熵编码。

公开(公告)号：US20090279803A1

公开(公告)日：2009-11-12

申请号：US12420409

申请日：2009-04-08

申请人： Young-ho MOON ,  Sung-bum PARK ,  Woo-sung SHIM ,  Dai-Woong CHOI ,  Jong-bum CHOI ,  Jae-won YOON

发明人： Young-ho MOON ,  Sung-bum PARK ,  Woo-sung SHIM ,  Dai-Woong CHOI ,  Jong-bum CHOI ,  Jae-won YOON

IPC分类号： G06K9/36

CPC分类号： H04N19/40 ,  H04N19/61 ,  H04N19/63

摘要： Provided are methods and apparatuses for converting a lower bit-plane image, and methods and apparatuses for inverse-converting the lower bit-plane image, which increase the correlation of the lower bit-plane image. According to the method of converting a lower bit-plane image, pixels of the lower bit-plane image are sequentially added or subtracted so as to generate a converted lower bit-plane image. Accordingly, the lower bit-plane image has higher regularity, and thus the efficiency of image processing using the lower bit-plane image is improved.

摘要翻译： 提供了用于转换较低位平面图像的方法和装置，以及用于逆变换低位平面图像的方法和装置，其增加了较低位平面图像的相关性。 根据转换较低位平面图像的方法，顺序地添加或减去较低位平面图像的像素，以产生转换的较低位平面图像。 因此，较低的位平面图像具有较高的规则性，因此提高了使用较低位平面图像的图像处理的效率。

公开(公告)号：US20110274177A1

公开(公告)日：2011-11-10

申请号：US13103578

申请日：2011-05-09

申请人： Sung-bum PARK ,  Jae-won YOON ,  Hae-young JUN ,  Shin-wook KANG ,  Dai-woong CHOI ,  Huai-rong SHAO

发明人： Sung-bum PARK ,  Jae-won YOON ,  Hae-young JUN ,  Shin-wook KANG ,  Dai-woong CHOI ,  Huai-rong SHAO

IPC分类号： H04N7/26

CPC分类号： H04N19/182 ,  H04N19/105 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/593 ,  H04N19/91

摘要： A method and apparatus for processing a video frame is provided. The method includes dividing the video frame into pixel blocks each including a reference pixel; calculating difference values between the reference pixel and pixels neighboring the reference pixel; converting the calculated difference values into values that belong to a bit depth range; and performing entropy coding by using the converted difference values as symbols.

摘要翻译： 提供了一种用于处理视频帧的方法和装置。 该方法包括将视频帧划分为每个包括参考像素的像素块; 计算参考像素和与参考像素相邻的像素之间的差值; 将计算的差值转换为属于比特深度范围的值; 以及通过使用转换的差值作为符号来执行熵编码。