منابع مشابه
3D Object recognition
◆ Collection of 3-D points ● coordinates of points are expressed in object coordinate system ● when we see an image of the object this means that there is an instance of the object in the world ◆ so, we can think of the object model as being transformed to the world coordinate system ◆ think of the world coordinate system as a coordinate system used to describe locations of points in a workspac...
متن کاملA novel Local feature descriptor using the Mercator projection for 3D object recognition
Point cloud processing is a rapidly growing research area of computer vision. Introducing of cheap range sensors has made a great interest in the point cloud processing and 3D object recognition. 3D object recognition methods can be divided into two categories: global and local feature-based methods. Global features describe the entire model shape whereas local features encode the neighborhood ...
متن کامل3D Object Retrieval and Recognition
As the development of techniques for modeling, digitizing and visualizing, 3D data are now becoming explosion in number and are widely recognized as the upcoming wave of digital media. In particular, 3D data acquisition techniques make it possible to acquire one 3D object with detailed shape information in a short time. Accordingly, this led to the development of techniques including processing...
متن کاملToward True 3D Object Recognition
This paper addresses the problem of recognizing three-dimensional (3D) objects in photographs and image sequences. It revisits viewpoint invariants as a local representation of shape and appearance, and proposes a unified framework for object recognition where object models consist of a collection of small (planar) patches, their invariants, and a description of their 3D spatial relationship. T...
متن کاملLearning 3D object recognition strategies
Knowledge-directed vision uses object descriptions to guide the visual recognition process. It is potentially efficient, since objects can be found by searching for only their most distinctive characteristics. For example, roadside warning signs in the U.S. can be identified by their distinctive yellow color at the same time office buildings are located by their linear structure. Similarly, the...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2015
ISSN: 1534-7362
DOI: 10.1167/15.12.1105