Company Filing History:
Years Active: 1999-2001
Title: Innovations of Steven A Gabriel
Introduction
Steven A Gabriel is a notable inventor based in Redmond, WA (US). He has made significant contributions to the field of video encoding and graphics rendering. With a total of 9 patents to his name, Gabriel's work has had a profound impact on technology.
Latest Patents
Gabriel's latest patents include a "Video encoder and decoder using bilinear motion compensation and lapped orthogonal transforms." This invention presents a method and system for improved motion compensation between a previous frame of video information and a new frame. Each block of pixels in a block-based compression scheme utilizes four vectors, three from proximate blocks, to determine motion-induced changes to its pixels. The vectors are interpolated for each pixel based on its location within the block, allowing for a more accurate color value for the new pixel. This innovation effectively eliminates sharp contrasts at the edges between blocks by blending colors gradually.
Another significant patent is the "Method and system for improving shadowing in a graphics rendering system." This system enhances shadowing of images using a multiple pass, depth buffer approach. It involves rendering a scene from the perspective of a light source to construct a shadow depth map in a rasterization buffer. The system computes depth values for the two nearest geometric primitives to the light source for pixels, storing these values in the rasterization buffer. This method eliminates self-shadowing artifacts and supports smoother transitions from shadowed to un-shadowed portions of an image.
Career Highlights
Gabriel is currently employed at Microsoft Technology Licensing, LLC, where he continues to innovate and develop new technologies. His work has been instrumental in advancing video processing and graphics rendering techniques.
Collaborations
Throughout his career, Gabriel has collaborated with notable colleagues, including Michael A Toelle and James Thomas Kajiya. These collaborations have further enriched his contributions to the field.
Conclusion
Steven A Gabriel's innovative patents and contributions to technology demonstrate his expertise and commitment to advancing video encoding and graphics rendering. His work continues to influence the industry and inspire future innovations.
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