NOVELTY - The method involves applying bilateral filtering to reduce artifacts including streaking in a computed tomography (CT) image with less blurring edges, and sequentially applying segmentation and carving on volumetric data of objects in the CT image. The segmented objects are split based on homogeneity of the objects in the CT image, where sequentially applying segmentation and carving are performed by obtaining a binary mask using a thresholding window, and performing morphological opening of the binary mask with a structuring element.    USE - Method for extracting objects e.g. homogeneous bulk objects such as bottles of liquid, candles, nylon blocks and battery packs, homogeneous medium thickness objects such as books, and thick rubber sheets, homogeneous sheet objects, homogeneous metallic objects, and heterogeneous objects (all claimed) such as cell phone and laptop, from a computed tomography (CT) image by sequential segmentation and carving for detecting presence of explosives in passenger bags.    ADVANTAGE - The method allows applying bilateral filtering on the CT image to reduce artifacts in the CT image, before applying segmentation and carving on volumetric data of objects in the CT image, thus enabling accurate segmentation and carving of the objects in the CT image.    DETAILED DESCRIPTION - The segmentation and carving step is performed by segmentation and carving of homogeneous bulk objects (SC1), homogeneous medium thickness objects (SC2), homogeneous sheet objects (SC3), homogeneous metallic objects (SC4) and remaining heterogeneous objects (SC5).    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of a.    Step for segmentation and carving of homogeneous bulk objects (SC1)    Step for segmentation and carving of homogeneous medium thickness objects (SC2)    Step for segmentation and carving of homogeneous sheet objects (SC3)    Step for segmentation and carving of homogeneous metallic objects (SC4)    Step for segmentation and carving of remaining heterogeneous objects (SC5)