Heang-Ping Chan

Title: **Innovator Heang-Ping Chan: Pioneering Optical Image Processing Technologies**

Introduction

Heang-Ping Chan is a prominent inventor based in Chicago, IL, recognized for his significant contributions to optical image processing. With a total of two patents to his name, Chan's work focuses on enhancing imaging techniques, particularly in medical fields such as radiography.

Latest Patents

Heang-Ping Chan's most recent patents showcase his innovative approaches to optical image processing. The first patent details an **optical image processing method and system** to perform unsharp masking within a radiographic system. This system utilizes an image intensifier to produce an image of an object and employs a television camera system to convert it into a video signal. A liquid crystal display (LCD) positioned between the image intensifier and the camera allows for selective attenuation of the light, thereby performing dynamic range compression and enhancing the image clarity through unsharp masking.

The second patent revolves around a **method and system for enhancement and detection of abnormal anatomic regions** in digital X-ray images. In this approach, a single projection digital X-ray image is processed to yield signal-enhanced data with a maximum signal-to-noise ratio (SNR), alongside signal-suppressed data. By subtracting the lower SNR data from the higher SNR data, Chan's method removes low-frequency anatomical backgrounds, enabling precise feature extraction. This technology is particularly beneficial for detecting lung nodules and mammographic microcalcifications.

Career Highlights

Throughout his career, Heang-Ping Chan has been associated with reputable institutions, including the University of Chicago and Toshiba Corporation. His work at these organizations has contributed to advancing medical imaging technologies, leading to more accurate diagnoses and improved patient outcomes.

Collaborations

Chan has collaborated with distinguished colleagues, such as Kunio Doi and Maryellen L. Giger. Their combined expertise has fostered innovative solutions in the realm of radiological imaging, enhancing the effectiveness and reliability of diagnostic procedures.

Conclusion

Heang-Ping Chan's contributions to optical image processing have opened new avenues in medical imaging technology. His patents reflect a dedication to improving the clarity and reliability of radiographic images, ultimately enhancing diagnostic capabilities in healthcare. As he continues to innovate, Chan remains a significant figure in the field of imaging and diagnostic technology.