A system for generating a virtual viewpoint image based on a plurality of captured images, said system comprising: a plurality of image capturing apparatuses (100 -x) configured to obtain said plurality of captured images, each image capturing apparatus (100-x) comprising: separation means comprising a foreground/background separation unit, wherein each foreground/background separation unit is configured to separate the captured image from its respective image capturing apparatus into foreground image data and background image data, wherein the foreground image data from one or more captured images among the plurality of captured images obtained by the plurality of image capturing apparatuses includes a region of an object; and a meta-information combining unit configured to add meta-information indicating the region of the object in the respective captured image; and an image monitoring unit which includes a display control means configured to receive, from the plurality of image capturing apparatuses (100-x), (i) only foreground image data out of the foreground image data and the background image data and (ii) meta-information, and display on a display screen, a plurality of pieces of foreground image data based on the received foreground image data including the one or more region or images and based on the received meta-information, wherein the meta-information includes coordinate information indicating a display location of the foreground image data in the respective captured image, size information indicating a size of the foreground image data, identification information of the foreground image data and identification information of each of the image capturing apparatus. a plurality of image capturing apparatuses (100 -x) configured to obtain said plurality of captured images, each image capturing apparatus (100-x) comprising: separation means comprising a foreground/background separation unit, wherein each foreground/background separation unit is configured to separate the captured image from its respective image capturing apparatus into foreground image data and background image data, wherein the foreground image data from one or more captured images among the plurality of captured images obtained by the plurality of image capturing apparatuses includes a region of an object; and a meta-information combining unit configured to add meta-information indicating the region of the object in the respective captured image; and an image monitoring unit which includes a display control means configured to receive, from the plurality of image capturing apparatuses (100-x), (i) only foreground image data out of the foreground image data and the background image data and (ii) meta-information, and display on a display screen, a plurality of pieces of foreground image data based on the received foreground image data including the one or more region or images and based on the received meta-information, wherein the meta-information includes coordinate information indicating a display location of the foreground image data in the respective captured image, size information indicating a size of the foreground image data, identification information of the foreground image data and identification information of each of the image capturing apparatus.