Abstract

This paper presents a self-coding sensor with the linking function. We created an omnidirectional lensless camera system using a dedicated CMOS image sensor with through-holes that act as a coding mask. The proposed system integrates the coding mask into the sensor itself, realizing a compact omnidirectional camera. We present the design and post-processing of the CMOS image sensor, including the formation of through-holes by deep reactive ion etching (DRIE). The measured full field of view (FoV) was about 20 degrees for the chip thickness of 50µm. Experimental results demonstrated successful image reconstruction using a Wiener filter. The scheme has great potential for applications in endoscopic imaging, wearable devices, and other areas where space and weight are limited.