Object management and visualization using a computing device

A method for operating an electronic device includes determining an aspect ratio for each of a plurality of visual objects and determining a thumbnail size for each of the plurality of visual objectsbased up the aspect ratio, generating a layout for thumbnails of the plurality of visual objects the thumbnail size, and displaying the thumbnails of the plurality of visual objects according to the layout. 种用于操作电子设备的方法包括：确定多个视觉对象中的每个的宽高比、根据宽高比确定多个视觉对象中的每个的缩略图尺寸、基于缩略图尺寸生成多个视觉对象的缩略图的布局以及根据布局显示多个视觉对象的缩略图。