图像处理装置、图像处理方法及图像处理程序

Image processing apparatus, image processing method, and image processing program

Abstract

An image processing apparatus comprises: an image acquisition means for acquiring low-resolution images captured in time sequence; a positioning means for generating a high-resolution image obtained by positioning, on the basis of the motions between the low-resolution images, the low-resolution images on a high-resolution image space; a correlation calculation means for calculating, for each of a plurality of partial areas of the high-resolution image, correlation information indicating a degree of correlation between the corresponding areas of the low-resolution images corresponding to the partial area; and an image combination means for calculating, on the basis of the correlation information, a combination ratio between the high-resolution image and a to-be-combined image for each partial area and for combining, in accordance with the combination ratio, the high-resolution image and the to-be-combined image having a lower resolution than the high-resolution image; wherein a combination ratio calculation means calculates a combination ratio for each partial area such that the lower the correlation for the area is, the smaller the percentage of the high-resolution image is and such that the higher the correlation for the area is, the larger the percentage of the high-resolution image is.
一种图像处理装置,其包括:图像取得单元,其取得按照时间序列拍摄的多个低分辨率图像;对位单元,其根据多个低分辨率图像之间的运动而生成将多个低分辨率图像在高分辨率的图像空间上进行了对位的高分辨率图像;相关计算单元,其针对高分辨率图像的每个部分区域而计算相关信息,该相关信息表示低分辨率图像的相当于部分区域的对应区域之间的相关程度;及图像合成单元,其根据相关信息而针对每个部分区域计算高分辨率图像与被合成图像的合成比率,并按照合成比率而将高分辨率图像和比高分辨率图像更低分辨率的被合成图像合成,合成比率计算单元以如下方式针对每个部分区域而计算合成比率:相关性越低的区域,高分辨率图像的比率越小,相关性越高的区域,高分辨率图像的比率越大。

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