Results 311 to 320 of about 393,439 (336)
Some of the next articles are maybe not open access.
Proceedings of the Symposium on Non-Photorealistic Animation and Rendering, 2017
We present a drawing assistant for sketching and for assisting users in shading a hand drawn sketch. The augmented reality based system uses a sketch made by a professional and uses it to help inexperienced users to do sketching and shading. The input image is converted to a set of points based on simple heuristics for providing a "connect the dots ...
Amal Dev Parakkat +3 more
openaire +1 more source
We present a drawing assistant for sketching and for assisting users in shading a hand drawn sketch. The augmented reality based system uses a sketch made by a professional and uses it to help inexperienced users to do sketching and shading. The input image is converted to a set of points based on simple heuristics for providing a "connect the dots ...
Amal Dev Parakkat +3 more
openaire +1 more source
1994
The use of both computer generated images and real video images can be made much more effective by merging them, ideally in real time. This motivation is at the basis of Computer Augmented Reality (CAR), which involves both elements of computer graphics and computer vision.
openaire +2 more sources
The use of both computer generated images and real video images can be made much more effective by merging them, ideally in real time. This motivation is at the basis of Computer Augmented Reality (CAR), which involves both elements of computer graphics and computer vision.
openaire +2 more sources
Proceedings of the 11th annual conference on Computer graphics and interactive techniques, 1984
Shading is an important part of computer imagery, but shaders have been based on fixed models to which all surfaces must conform. As computer imagery becomes more sophisticated, surfaces have more complex shading characteristics and thus require a less rigid shading model.
openaire +3 more sources
Shading is an important part of computer imagery, but shaders have been based on fixed models to which all surfaces must conform. As computer imagery becomes more sophisticated, surfaces have more complex shading characteristics and thus require a less rigid shading model.
openaire +3 more sources
ACM SIGGRAPH Asia 2008 papers, 2008
The idea of Phong Shading is applied to subdivision surfaces: normals are associated with vertices and the same construction is used for both locations and normals. This creates vertex positions and normals. The vertex normals are smoother than the normals of the subdivision surface and using vertex normals for ...
Tamy Boubekeur, Marc Alexa
openaire +2 more sources
The idea of Phong Shading is applied to subdivision surfaces: normals are associated with vertices and the same construction is used for both locations and normals. This creates vertex positions and normals. The vertex normals are smoother than the normals of the subdivision surface and using vertex normals for ...
Tamy Boubekeur, Marc Alexa
openaire +2 more sources
New Phytologist, 2008
SummaryThe threat to plant survival presented by light limitation has driven the evolution of highly plastic adaptive strategies to either tolerate or avoid shading by neighbouring vegetation. When subject to vegetational shading, plants are exposed to a variety of informational signals, which include altered light quality and a reduction in light ...
openaire +2 more sources
SummaryThe threat to plant survival presented by light limitation has driven the evolution of highly plastic adaptive strategies to either tolerate or avoid shading by neighbouring vegetation. When subject to vegetational shading, plants are exposed to a variety of informational signals, which include altered light quality and a reduction in light ...
openaire +2 more sources
Highlight shading: Lighting and shading in a
Computers & Graphics, 1990Abstract Today's graphics standard for the rendering of scenes with illumination and reflection is defined by PHIGS+. PEX is a proposal to integrate that functionality into the window environment of X. This paper first describes the lighting and shading models of PHIGS + PEX . Then a comparison of the different shading methods follows. At last,
Josef Pöpsel, Christoph Hornung
openaire +2 more sources
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1991
It is demonstrated that mutual illumination can produce significant effects in real scenes. An example is presented to illustrate the difficulties that mutual illumination presents to shape recovery schemes. These effects are qualitatively modeled by the radiosity equation.
Forsyth, D, Zisserman, A
openaire +3 more sources
It is demonstrated that mutual illumination can produce significant effects in real scenes. An example is presented to illustrate the difficulties that mutual illumination presents to shape recovery schemes. These effects are qualitatively modeled by the radiosity equation.
Forsyth, D, Zisserman, A
openaire +3 more sources
SSRN Electronic Journal, 2008
Social networking tools reveal that there is an intricate web of relationships between business and environmentalists, which if developed could benefit the environmental movement.
openaire +2 more sources
Social networking tools reveal that there is an intricate web of relationships between business and environmentalists, which if developed could benefit the environmental movement.
openaire +2 more sources
Notes and Queries, 1890