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公开(公告)号:US5239625A
公开(公告)日:1993-08-24
申请号:US664763
申请日:1991-03-05
CPC分类号: H04N1/3871 , G06K15/00 , G06K15/1853 , G06T11/60 , G06K2215/0065 , G06K2215/0071
摘要: An input image containing high resolution images and low resolution images is rasterized twice, once at a high resolution and once at a low resolution. The rasterized images are represented in compressed form using a run-code encoding technique. The low resolution images are rasterized during the low resolution rasterization and are scaled to the output resolution. The high resolution images are rasterized during the high resolution rasterization. The two rasterizations are merged in hardware, producing a composite output image which contains low resolution image elements and high resolution image elements.
摘要翻译: 包含高分辨率图像和低分辨率图像的输入图像被光栅化两次,一次以高分辨率并且一次以低分辨率。 光栅化图像使用运行代码编码技术以压缩形式表示。 在低分辨率光栅化期间,低分辨率图像被光栅化,并被缩放到输出分辨率。 高分辨率光栅化期间,高分辨率图像被光栅化。 两个光栅化在硬件中合并,产生包含低分辨率图像元素和高分辨率图像元素的复合输出图像。