Topic
Object (computer science)
About: Object (computer science) is a research topic. Over the lifetime, 106024 publications have been published within this topic receiving 1360115 citations. The topic is also known as: obj & Rq.
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Patent•
09 Sep 2002
TL;DR: In this paper, a transmitter comprising two or more light-emitting sections, e.g., LEDs, in a specified physical arrangement is installed in a real world object and each lightemitting section turns on/off in an on-/off pattern representative of transmission data of specified bit length to transmit data.
Abstract: A transmitter comprising two or more light-emitting sections, e.g, LEDs, in a specified physical arrangement is installed in a real world object and each light-emitting section turns on/off in an on/off pattern representative of transmission data of specified bit length to transmit data. A receiver having a light-receiving section comprising a two-dimensional light-receiving face decodes the transmission data based on the received on/off pattern and recognizes spatial information on the object based on the on/off position on the two-dimensional light-receiving face. ID information, or the like, is thereby acquired from an object in the real world and, at the same time, the spatial position of the object can be recognized.
203 citations
Patent•
20 Nov 2003
TL;DR: In this paper, a method for printing and supporting a 3D object is described, which can include dispensing a first interface material for the construction of the three-dimensional object, dispensing another interface material to form a support structure for supporting the 3-D object and dispensing an interface material which may be used to separate the support structure from the 3D model.
Abstract: A method for printing and supporting a three-dimensional (3-D) object is provided. The method of printing can include dispensing a first interface material for the construction of the three-dimensional object, dispensing a second interface material to form a support structure for supporting the three-dimensional object and dispensing a third interface material which may be used to separate the support structure from the 3-D object Disclosed also a method for producing a 3-D model containing various kinds of inserts.
203 citations
TL;DR: A novel 3D shape descriptor that uses a set of panoramic views of a 3D object which describe the position and orientation of the object’s surface in 3D space to increase the retrieval performance by employing a local (unsupervised) relevance feedback technique that shifts the descriptor of an object closer to its cluster centroid in feature space.
Abstract: We present a novel 3D shape descriptor that uses a set of panoramic views of a 3D object which describe the position and orientation of the object's surface in 3D space. We obtain a panoramic view of a 3D object by projecting it to the lateral surface of a cylinder parallel to one of its three principal axes and centered at the centroid of the object. The object is projected to three perpendicular cylinders, each one aligned with one of its principal axes in order to capture the global shape of the object. For each projection we compute the corresponding 2D Discrete Fourier Transform as well as 2D Discrete Wavelet Transform. We further increase the retrieval performance by employing a local (unsupervised) relevance feedback technique that shifts the descriptor of an object closer to its cluster centroid in feature space. The effectiveness of the proposed 3D object retrieval methodology is demonstrated via an extensive consistent evaluation in standard benchmarks that clearly shows better performance against state-of-the-art 3D object retrieval methods.
203 citations
Patent•
09 Mar 2001
TL;DR: In this paper, a method and system for tracking a moving object with one or more single-component sensors of a vector field is presented, where parameters of equations that relate the generated fields, as measured by the sensors, to the position of the moving object, but not to the orientation of the object, are determined either empirically or theoretically.
Abstract: A method and system for tracking a moving object. The object (10) is provided with one or more single-component sensors of a vector field. Generators of the vector field (40, 40', 40'', 42, 42', 42'', 44, 44', 44'') also are provided. Parameters of equations that relate the generated fields, as measured by the sensors, to the position of the object, but not to the orientation of the object, are determined either empirically or theoretically. The equations are solved to determine the position of the object without having to determine the orientation of the object. The scope of the invention also includes a helical guide wire wherein are integrally included one or more single-component sensors of a quasi-static magnetic field.
202 citations
Patent•
14 Sep 1998TL;DR: In this paper, a graphical user interface in which object thumbnails, as scaled images, are rendered on a two-dimensional wall or screen, and which exploits spatial memory is presented, where objects may be moved, continuously, on the surface with a 2D input device.
Abstract: A graphical user interface in which object thumbnails, as scaled images, are rendered on a two-dimensional wall or screen, and which exploits spatial memory The objects may be moved, continuously, on the surface with a two-dimensional input device Pop-up title bars may be rendered over active objects Intelligent help may be provided to the user, as visual indicators, based on proximity clustering or based on matching algorithms
202 citations