1. A video surveillance equipment for detecting change of an object in a monitoring area based on input images captured by a picture capturer, the equipment comprising: a reference image generation section for generating a reference image, which is a reference in image recognition processing, based on the input captured by the picture capturer; a motion detection apparatus for detecting motion of an object existing in the input images by comparing the input images with the reference image, and for determining a moving state of the object management section for storing information of a stationary object; and a left object detector for determining a stopping stat of the object based on the determination result of moving state of the object in the motion detection apparatus, and storing the information of the stationary object that is the object stopping for a predetermined time in the stationary object management section; wherein the left object detector includes: a masked image generation section for generating a first masked image of the stationary object in which a motion region obtained by the motion detection apparatus and included in the image of the stationary object is masked, and a second masked image of the input image in which the motion region included the input image is masked; a first similarity degree calculation apparatus for calculating a first similarity degree between the first masked image and the second masked image; and an object change detection apparatus for detecting the motion of the object in the monitoring area based on the first similarity degree; wherein the left object detector includes: the masked image generation section for generating a third masked image of the reference image in which the motion region included the reference image is masked; a second similarity degree calculation apparatus for calculating a second similarity degree between the first masked image and the third masked image; and a comparison result integration apparatus that is the object change detection apparatus for detecting the motion of the object in the monitoring area based on a comparison result between the first similarity degree obtained by the first similarity degree calculation apparatus and the second similarity degree obtained by the second similarity degree calculation apparatus; and wherein the detection of the motion of the object in the monitoring area is performed based on a comparison result between the first similarity degree and the second similarity degree; and the first similarity degree when an amount of data of the image in the motion region obtained by the motion detection apparatus is larger than a predetermined amount, and based on the comparison result between the first similarity degree and the second similarity degree when the amount of the data of the image in the motion region is smaller than the predetermined amount.