Quadtree-based image compression formats and level-of-detail systems all work this way. Satellite imagery, terrain rendering, and geographic information systems use quadtree decomposition to serve data at varying resolutions: zoomed out, you see large coarse blocks; zoomed in, you see fine-grained tiles. The same principle extends to three dimensions (octrees) for volume rendering and 3D spatial indexing.
圖像加註文字，香港會展中心一場寵物展覽上，一位女士與三隻寵物犬在模擬茶餐廳「卡位」餐桌上拍照。新政策若得到落實，寵物犬將可隨飼主進入獲得拍照加註的餐廳，但不准上桌。香港餐廳「禁狗令」：30年後拆牆嘗試
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