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    • 2. 发明申请
    • ENERGY CORRECTION DEVICE THROUGH TRANSFORM DOMAIN PIXEL GROUPING AND METHOD THEREOF
    • 通过变换域像素分组的能量校正装置及其方法
    • WO2012023770A3
    • 2012-05-31
    • PCT/KR2011005975
    • 2011-08-12
    • SK TELECOM CO LTDSONG JINHANLIM JEONGYEONKIM YONGGOOCHOE YOONSIKCHOI YUNG HOHONG SOON GI
    • SONG JINHANLIM JEONGYEONKIM YONGGOOCHOE YOONSIKCHOI YUNG HOHONG SOON GI
    • G06T5/00
    • H04N19/86H04N19/63
    • Disclosed are an improved energy correction device through pixel grouping and a method thereof. According to an embodiment of the present invention, the energy correction device which corrects an error of an image comprises: a pixel value transformation unit which performs pixel value transformations for an original image and a decoded image, and obtains each piece of directional information; Fig. 6 S601 Obtain directional information by performing pixel value transformation for image S603 Classify obtained directional information into plurality of domains, and extract group energy representative value from each of classified domains S605 Calculate energy correction value on the basis of difference between group energy representative value extracted from decoded image and group energy representative value extracted from original image AA Start BB End a group energy extraction unit which classifies each piece of obtained directional information into a plurality of domains, and extracts group energy representative values that represent the corresponding domains from each of the classified domains; and a correction value calculation unit which calculates an energy correction value on the basis of a difference between a group energy representative value extracted from the decoded image and a group energy representative value extracted from the original image.
    • 公开了一种通过像素分组的改进的能量校正装置及其方法。 根据本发明的一个实施例,校正图像误差的能量校正装置包括:对原始图像和解码图像执行像素值变换并获得每条方向信息的像素值变换单元; 图。 6 S601通过对图像S603进行像素值变换来获取方向性信息将获得的方向信息分类为多个域,并从各个分类域提取组能量代表值S605基于从提取的组能量代表值之间的差计算能量校正值 从原始图像提取的解码图像和组能量代表值AA启动BB结束将每个获得的方向信息分类成多个域的组能量提取单元,并且从每个被分类的组中提取表示相应域的组能量代表值 域; 以及校正值计算单元,其基于从解码图像提取的组能量代表值与从原始图像提取的组能量代表值之间的差计算能量校正值。