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针对嵌入式终端设备资源有限与日益增长的海量影像数据显示之间的矛盾,提出并实现了一种适用于嵌入式设备的影像快速渲染方案.首先,研究了多分辨率瓦片金字塔构建改进算法,用以实现海量影像数据的组织管理.然后,在此基础上利用视点相关层次细节技术、目标瓦片快速搜索技术和瓦片无缝拼接技术实现影像的快速调度和显示.实验结果表明,和基于小波技术的多尺度影像显示方案对比,尽管所提方案需要增加数据存储空间,但可提供更快的显示速度,且图像显示速度和图像大小无关.此外,所提方案可实现交互的实时性和友好性,并提供更高效的用户体验,因此适用于嵌入式设备.
Aimed at the contradiction between the limited resources of embedded terminal equipment and the increasing display of massive image data, a fast rendering scheme for embedded devices is proposed and implemented.Firstly, the improved algorithm for building multi-resolution tile pyramid , To realize the organization and management of massive image data.Furthermore, based on this, the viewpoint-related level detail technology, the target tile rapid search technology and the tile seamless splicing technique are used to realize the rapid dispatch and display of images.Experimental results show that Compared with the multi-scale video display scheme based on wavelet technology, although the proposed scheme needs more data storage space, it can provide faster display speed and the image display speed has nothing to do with the image size.In addition, the proposed scheme can realize the real-time interaction And friendliness, and provide a more efficient user experience, so for embedded devices.