1. A picture searching apparatus comprising: means for inputting sequential video data; means for measuring correlation between sequential images based on the video data; means for directly measuring correlation between only non-sequential temporally sampled images with a frame or field as a unit based on the video data; and means for determining short cut points by using the correlation between the sequential images and the correlation between the non-sequential temporally sampled images, wherein the means for measuring correlation between sequential images and the means for measuring correlation between only non-sequential temporally sampled images operate independently from each other.