Jie Zhou

Title: Innovations of Jie Zhou: A Pioneer in Image Processing Technologies

Introduction

Jie Zhou is a notable inventor based in Richmond Hill, Canada, recognized for his contributions to image processing technologies. With a total of seven patents to his name, Zhou has made significant advancements in the field, particularly in the areas of image resampling and lookup table interpolation.

Latest Patents

One of Jie Zhou's latest patents is titled "Gradient adaptive ringing control for image resampling." This invention discloses systems, apparatuses, and methods for implementing gradient adaptive ringing control for image resampling. A blending alpha calculation circuit generates a blending alpha value for a set of input pixels based on a normalized gradient calculated for those pixels. The normalized gradient is a low-pass filtered gradient divided by a maximum gradient for the set of input pixels. This value is then passed through a mapping function to generate the blending alpha value, which is pre-tuned based on various factors such as filter coefficients and video content type. The result is an interpolated pixel generated by blending ringing-free and ringing-prone interpolation coefficients.

Another significant patent by Zhou focuses on "Reducing 3D lookup table interpolation error while minimizing on-chip storage." This invention outlines systems, apparatuses, and methods for reducing three-dimensional (3D) lookup table interpolation error. A processor generates mappings from a first gamut to a second gamut at locations throughout a 3D representation of the pixel component space. Instead of increasing the number of vertices to reduce interpolation error, the processor calculates mappings for centroids of the sub-cubes defined by the vertices. This approach results in a smaller increase to the lookup table size while effectively reducing interpolation error.

Career Highlights

Jie Zhou is currently employed at Ati Technologies Ulc, where he continues to innovate and develop cutting-edge technologies in image processing. His work has significantly impacted the industry, leading to more efficient and effective image processing solutions.

Collaborations

Zhou has collaborated with notable colleagues, including David I J Glen and Keith Lee, contributing to various projects and advancements in their field.

Conclusion

Jie Zhou's innovative work in image processing technologies has established him as a leading inventor in his field. His patents reflect a commitment to enhancing image quality and processing efficiency, making significant contributions to the industry.