Sei Koh

Title: Sei Koh - Innovator in Image Input Technology

Introduction

Sei Koh is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of image input technology, holding a total of 4 patents. His work focuses on enhancing the quality of image signals, particularly in low-light conditions.

Latest Patents

Koh's latest patents include an "Image Input Apparatus" and an "Image Input Device." The Image Input Apparatus is designed to generate luminance signals with a high signal-to-noise (S/N) ratio, even during nighttime, using a minimal quantity of photons. This apparatus features an imaging element that captures image components, while a color signal generating section produces color signals from these components. Additionally, a color space conversion section transforms the color signals into a color space that incorporates both luminance and color difference signals. This section calculates a luminance signal by adding the image components, ensuring high-quality output.

The Image Input Device also aims to generate a luminance signal with a high S/N ratio. It is capable of providing images with minimal discomfort during nighttime when photon levels are low. When the visible light luminance signal is relatively low and the infrared component is dominant, the device corrects color-difference signals with added luminance. This correction prevents the color-difference signals from becoming excessively high, allowing for more natural color reproduction that closely resembles original visible light.

Career Highlights

Sei Koh has worked with notable companies such as Konica Minolta Opto, Inc. and Konica Minolta Holdings, Inc. His experience in these organizations has contributed to his expertise in image technology and innovation.

Collaborations

Koh has collaborated with talented individuals in his field, including Po-Chieh Hung and Jun Takayama. These partnerships have likely enriched his work and led to advancements in image input technology.

Conclusion

Sei Koh is a distinguished inventor whose work in image input technology has led to significant advancements in the field. His innovative patents demonstrate a commitment to improving image quality, particularly in challenging lighting conditions. Koh's contributions continue to influence the industry and inspire future innovations.