基本信息:
- 专利标题： IMAGE PROCESSING APPARATUS AND METHOD
- 专利标题（中）：图像处理装置和方法
- 申请号：US13054648 申请日：2009-07-24
- 公开(公告)号：US20110122953A1 公开(公告)日：2011-05-26
- 发明人： Ohji Nakagami , Junichi Tanaka , Takefumi Nagumo , Yoichi Yagasaki
- 申请人： Ohji Nakagami , Junichi Tanaka , Takefumi Nagumo , Yoichi Yagasaki
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 国际申请： PCT/JP2009/063249 WO 20090724
- 主分类号： H04N7/26
- IPC分类号： H04N7/26
摘要：
The present invention relates to an image processing apparatus and method that allow the generation of a high-accuracy prediction image without increasing the processing load.A difference image between motion compensation images MC0 and MC1 extracted from different reference frames is calculated. A low-pass filter is applied to the difference image, and the gain of an obtained image is adjusted. A high-pass filter is applied to an image obtained by the application of a low-pass filter, and the gain of an obtained image is adjusted. An image obtained by adding the output of a gain adjustment circuit 53 and the output of a gain adjustment circuit 55 is added with the motion compensation image MC0, and a prediction image is generated. The present invention can be applied to an apparatus that performs prediction encoding, and an apparatus that decodes information encoded through prediction encoding.
摘要（中）：
本发明涉及一种允许生成高精度预测图像而不增加处理负荷的图像处理装置和方法。 计算从不同参考帧提取的运动补偿图像MC0和MC1之间的差分图像。 对差分图像应用低通滤波器，并且调整所获得的图像的增益。 将高通滤波器应用于通过应用低通滤波器获得的图像，并且调整所获得的图像的增益。 通过将增益调整电路53的输出和增益调整电路55的输出相加而获得的图像与运动补偿图像MC0相加，生成预测图像。 本发明可以应用于执行预测编码的装置，以及对通过预测编码编码的信息进行解码的装置。
公开/授权文献:
- US08705627B2 Image processing apparatus and method 公开/授权日：2014-04-22