Hejin Cheong
Papers
1
Total Citations
29
H-Index
1
About
Dr. Hejin Cheong is a researcher in computational imaging and sensor signal processing, with a primary focus on image restoration and deblurring techniques. His most cited work, "Fast Image Restoration for Spatially Varying Defocus Blur of Imaging Sensor" (2015, 29 citations), addresses a critical challenge in digital photography: correcting non-uniform blur caused by varying depths of field. Cheong’s key contribution lies in developing an adaptive method that estimates spatially variant point-spread-function (PSF) parameters using local derivative analysis, enabling efficient restoration of defocus blur across different image regions. This approach significantly improves computational speed compared to traditional methods, making it practical for real-time imaging sensor applications. While his citation count reflects a focused but impactful contribution, Cheong’s work has been recognized for bridging theoretical restoration models with practical sensor constraints. His research is particularly valuable for engineers and scientists working on camera systems, computational photography, and autonomous vision, where robust deblurring is essential for accurate image interpretation.
Research Focus
Key Achievements
Top Papers
- 1Fast Image Restoration for Spatially Varying Defocus Blur of Imaging Sensor29 citations · 2015