An object positioning apparatus comprising: a radiographic image input interface configured to acquire a radiographic image that is generated by causing a fluoroscopic imaging apparatus to image an object and includes a first region and a second region, the first region depicting an index region for positioning of the object, the second region depicting a non-index region other than the index region； and a positioning processor configured to perform the positioning of the object by performing matching processing between a previously generated reference image and the first region that is specified from the radiographic image based on three-dimensional model information of the non-index region.本發明揭露一種物件定位裝置，包含：放射攝影影像輸入介面，其經組態以獲取藉由使螢光成像裝置對物體成像所產生之放射攝影影像，且該影像包括第一區及第二區，該第一區描繪用於定位物件之指標區且該第二區描繪指標區以外之非指標區；以及定位處理器，其經組態以藉由執行先前產生之參考影像與第一區之間的匹配處理來執行物件之定位，該第一區係基於非指標區之三維模型資訊而自放射攝影影像所指定的。
