Subpixel rendering

About: Subpixel rendering is a research topic. Over the lifetime, 3885 publications have been published within this topic receiving 82789 citations.

PROOF: an architecture for rendering in object space

Abstract: This paper gives a short introduction into the field of computer image generation in hardware. It discusses the two main approaches, namely partitioning in Image space and In object space. Based on the object space partitioning approach we have defined the PROOF architecture. PROOF is a system that aims at high performance and high quality rendering of raster images. High performance means that up to 30 pictures are generated in one second. The pictures are shaded and anti-aliased, giving the images a high degree of realism. The architecture comprises tnree stages which are responsible for hidden surface removal, shading, and filtering respectively. The first of these stages is a pipeline of object processors. Each of these processors stores and scan converts one object Furthermore, It interpolates the depth and the normal vector across the Object. Each object processor is able to handle objects of a certain primitive type. The specialization of an object processor to a certain primitive type is encapsulated in a Single block called primitive processor. The output of the object processor pipeline is the input to a stage for shading. The illumination model employed takes into account both diffuse and specular reflections. The paper reviews Gouraud and Phong shading with regard to their suitability for a hardware implementation. The final stage of the PROOF system is formed by a stage for filtering the colours of those objects that contribute to a pixel. This done by constructing a subpixel mask and filtering across an area of 2×2 pixels. At the end the paper briefly reports on the current state of the project.

Subpixel rendering on nonstriped colour matrix displays

Abstract: Luminance resolution of colour matrix displays can be enhanced when subpixel resampling is used to render images, but at the cost of colour aliasing if appropriate filtering is not done. The problem has been effectively solved for the case of one-dimensional RGB striped matrix displays by using a high-pass chrominance filter, based on a human perceptual model, following resampling. In this paper we motivate the case of 2D subpixel geometries and suggest an extension to the ID solution.

Gamut mapping and subpixel rendering systems and methods

Abstract: In a first embodiment, a display system comprises a display panel with 4 or more colored subpixels The display system receives input image data specified in a first color space and outputs image data specified in a second color space The display system further comprises a gamut mapping module for mapping the input image data specified in the first color space to image data specified in the second color space The gamut mapping module clamps out-of-gamut colors using at least a first clamping system and a second clamping system The first and second clamping systems yield first and second clamped values A weighting module produces a resulting clamped value from the first and second clamped values A final output image value is derived from the resulting clamped value Other embodiments of the display system include pre-reduction modules and adjustable GMA modules