A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
Marching cubes: A high resolution 3D surface construction algorithm
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Scale-Space and Edge Detection Using Anisotropic Diffusion
IEEE Transactions on Pattern Analysis and Machine Intelligence
The Design and Use of Steerable Filters
IEEE Transactions on Pattern Analysis and Machine Intelligence
Discontinuity Meshing for Accurate Radiosity
IEEE Computer Graphics and Applications
Scale-dependent reproduction of pen-and-ink illustrations
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Geometric shock-capturing eno schemes for subpixel interpolation, computation and curve evolution
Graphical Models and Image Processing
Warping and morphing of graphical objects
Warping and morphing of graphical objects
International Journal of Computer Vision - Special issue on computer vision research at NEC Research Institute
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Reconstruction filters in computer-graphics
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
An invitation to discuss computer depiction
NPAR '02 Proceedings of the 2nd international symposium on Non-photorealistic animation and rendering
Non-Photorealistic Rendering
The A -buffer, an antialiased hidden surface method
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Graphcut textures: image and video synthesis using graph cuts
ACM SIGGRAPH 2003 Papers
Synthesis of progressively-variant textures on arbitrary surfaces
ACM SIGGRAPH 2003 Papers
View-dependent displacement mapping
ACM SIGGRAPH 2003 Papers
All-frequency shadows using non-linear wavelet lighting approximation
ACM SIGGRAPH 2003 Papers
ACM SIGGRAPH 2003 Papers
Combining edges and points for interactive high-quality rendering
ACM SIGGRAPH 2003 Papers
Suggestive contours for conveying shape
ACM SIGGRAPH 2003 Papers
Non-photorealistic camera: depth edge detection and stylized rendering using multi-flash imaging
ACM SIGGRAPH 2004 Papers
Silhouette maps for improved texture magnification
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Silhouette maps for improved texture magnification
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
Resolution independent curve rendering using programmable graphics hardware
ACM SIGGRAPH 2005 Papers
Real-time texture-mapped vector glyphs
I3D '06 Proceedings of the 2006 symposium on Interactive 3D graphics and games
ACM SIGGRAPH 2006 Papers
Editing Soft Shadows in a Digital Photograph
IEEE Computer Graphics and Applications
Image vectorization using optimized gradient meshes
ACM SIGGRAPH 2007 papers
Image upsampling via imposed edge statistics
ACM SIGGRAPH 2007 papers
Improved alpha-tested magnification for vector textures and special effects
ACM SIGGRAPH 2007 courses
IStar: A Raster Representation for Scalable Image and Volume Data
IEEE Transactions on Visualization and Computer Graphics
Real-time rendering of textures with feature curves
ACM Transactions on Graphics (TOG)
Precise vector textures for real-time 3D rendering
Proceedings of the 2008 symposium on Interactive 3D graphics and games
Random-access rendering of general vector graphics
ACM SIGGRAPH Asia 2008 papers
Automatic and topology-preserving gradient mesh generation for image vectorization
ACM SIGGRAPH 2009 papers
Rendering surface details with diffusion curves
ACM SIGGRAPH Asia 2009 papers
Technical Section: Real-time path-based surface detail
Computers and Graphics
High-quality fast image upsampling algorithm based on CUDA
HCII'11 Proceedings of the 14th international conference on Human-computer interaction: design and development approaches - Volume Part I
Diffusion curve textures for resolution independent texture mapping
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
Split-voxel: a simple discontinuity-preserving voxel representation for volume rendering
VG'10 Proceedings of the 8th IEEE/EG international conference on Volume Graphics
Efficient solid texture synthesis using gradient solids
CVM'12 Proceedings of the First international conference on Computational Visual Media
Efficient synthesis of gradient solid textures
Graphical Models
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Pixels store a digital image as a grid of point samples that can reconstruct a limited-bandwidth continuous 2-D source image. Although convenient for anti-aliased display, these bandwidth limits irreversibly discard important visual boundary information that is difficult or impossible to accurately recover from pixels alone. We propose bixels instead: they also store a digital image as a grid of point samples, but each sample keeps 8 extra bits to set embedded geometric boundaries that are infinitely sharp, more accurately placed, and directly machine-readable. Bixels represent images as piecewise-continuous, with discontinuous intensities and gradients at boundaries that form planar graphs. They reversibly combine vector and raster image features, decouple boundary sharpness from the number of samples used to store them, and do not mix unrelated but adjacent image contents, e.g blue sky and green leaf. Bixels are meant to be compatible with pixels. A bixel is a image sample point with an 8 bit code for local boundaries. We describe a boundary-switched bilinear filter kernel for bixel reconstruction and pre-filtering to find bixel samples, a bixels-to-pixels conversion method for display, and an iterative method to combine pixels and given boundaries to make bixels. We discuss applications in texture synthesis, matting and compositing. We demonstrate sharpness-preserving enlargement, warping and bixels-to-pixels conversion with example images.