Shapes are considered as digital objects that are characterised by a visual appearance in a space of two, three, or more dimensions. Examples of shapes are pictures, sketches, images (2D), solid objects and scenes (3D), and animations (4D = 3D + time). Digital shapes are expected to take a central role in the next years, with potentially high impact in several key areas related to a smart use of internet technologies. This has recently caused an increasing need of tools to browse, retrieve and navigate efficiently video or image databases, not to mention databases of 3D shapes and data volumes. Currently, information encoded in multi-dimensional digital media is implicit, as it is based on data formats that have no relation with data interpretation and offer no grasp to their direct access and easy understanding.
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机译：形状被认为是数字对象，其特征是在二维，三维或更多维度的空间中具有视觉外观。形状的示例包括图片，草图，图像（2D），实体对象和场景（3D）和动画（4D = 3D +时间）。预计数字形状将在未来几年中扮演中心角色，并在与智能使用互联网技术有关的几个关键领域中产生巨大影响。最近，这导致对工具的需求日益增长，这些工具需要有效地浏览，检索和导航视频或图像数据库，更不用说3D形状和数据量的数据库了。当前，在多维数字媒体中编码的信息是隐式的，因为它基于与数据解释无关的数据格式，并且无法直接访问和易于理解。
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