John G Apostolopoulos

Title: John G Apostolopoulos: Innovator in Image Processing Technology

Introduction

John G Apostolopoulos is a notable inventor based in Country Club Hills, IL (US). He has made significant contributions to the field of image processing, particularly through his innovative patent that addresses visual artifacts in encoded images. His work is essential for enhancing the quality of image transmission systems.

Latest Patents

Apostolopoulos holds a patent for a "Method and apparatus for post-processing images." This invention involves an image transmitting method and system that includes receiving encoded images, decoding those images, and post-processing the decoded images. The post-processing technique effectively reduces visual artifacts, such as blocking artifacts and mosquito noise, through separate detection, mapping, and smoothing operations. Notably, the method employs DCT-domain detection for blocking artifacts, which is more efficient than traditional edge detection in the pixel domain. Additionally, the method updates the interior of a detected block based on surrounding blocks without disturbing them.

Career Highlights

John G Apostolopoulos has worked at Lucent Technologies Inc., where he has been able to apply his expertise in image processing. His innovative approach has led to advancements in the efficiency and quality of image transmission technologies.

Collaborations

Apostolopoulos has collaborated with Nuggehally Sampath Jayant, contributing to the development of cutting-edge technologies in their field.

Conclusion

John G Apostolopoulos is a distinguished inventor whose work in image processing has made a significant impact on the industry. His innovative patent demonstrates his commitment to improving image transmission quality and reducing visual artifacts.