<title>On-chip binary image processing with CMOS image sensors</title>

Abstract

In this paper, we demonstrate a CMOS active pixel sensor chip, integrated with binary image processing on a single monolithic chip. A prototype chip comprising a 64x64 photodiode array with on-chip binary image processing is fabricated in standard 0.35 µm CMOS technology, with 3.3V power supply. The binary image processing functionality is embedded in the column structure, where each processing element is placed per column, reducing processing time and power consumption. This column processing structure is scalable to higher resolution. A 3x3 local mask (also called structure element) is implemented every column so that row-parallel processing can be achieved with a conventional progressive scanning method.

Smart cameras on a chip: Using complementary metal-oxide-semiconductor (CMOS) image sensors to create smart vision chips

“…Processing units can be realized at chip level (system-on-chip approach), at column level by dedicating processing elements to one or more columns (typically analog to digital converters), or at pixel-level by integrating a specific unit in each pixel. Historically, most of the researches have dealt with chip-level and column-level (Dickinson et al, 1995, Kemeny et al, 1997, Hong and Hornsey, 2002Yadid-Pecht and Belenky, 2003;Acosta-Serafini et al 2004;Kozlowski et al 2005;Sakakibara et al 2005). Indeed, pixel-job_20190320093335_Ch7.Ginhac.08.10.12.final.text.kh-corrected-by-dg.docx 7 level processing has been generally dismissed for years because pixel sizes are often too large to be of practical use.…”

Smart cameras on a chip: using complementary metal-oxide-semiconductor (CMOS) image sensors to create smart vision chips

“…Processing units can be realized at chip level (system-on-chip approach), at column level by dedicating processing elements to one or more columns (typically analog to digital converters), or at pixel-level by integrating a specific unit in each pixel. Historically, most of the researches have dealt with chip-level and column-level (Dickinson et al, 1995, Kemeny et al, 1997, Hong and Hornsey, 2002Yadid-Pecht and Belenky, 2003;Acosta-Serafini et al 2004;Kozlowski et al 2005;Sakakibara et al 2005). Indeed, pixel-job_20190320093335_Ch7.…”

High-speed binary CMOS image sensor using a high-responsivity MOSFET-type photodetector

“…The binary image sensor can be implemented using a simple circuit composed of comparator and D-flip-flop. The binary image sensor is interesting because the captured image in a binary form can be processed using fast logical operations [25][26][27]. The binary image sensor is used in a variety of applications, including motion detectors, character recognition, edge detectors, and barcoding.…”