A 1.2MP 1/3” CMOS Image Sensor with Light Flicker Mitigation
نویسندگان
چکیده
In prior imaging systems [1-3], image artifacts may be caused by flickering lighting and objects with changing illumination in an image frame. Such artifacts may include, for example, missing parts of an object, edge color artifacts, and object distortion. Examples of objects with changing illumination include light-emitting diode (LED) traffic signs (which can flicker several hundred times per second), and LED stop and head lights of modern cars.
منابع مشابه
MT9D115 - MT9D115 1/5‐inch System‐On‐a‐Chip (SOC) CMOS Digital Image Sensor
• Automatic Functions: Exposure, White Balance, Black Level Offset Correction, Flicker Detection and Avoidance, Color Saturation Control, Defect Identification and Correction, Aperture Correction, and GPIO • Programmable Controls: Exposure, White Balance, Horizontal and Vertical Blanking, Color, Sharpness, Gamma, Lens Shading Correction, Horizontal and Vertical Image Flip, Zoom, Windowing, Samp...
متن کاملNew Method for Analysis of image sensor to produce and evaluate the image
In this paper, a new method for evaluating CMOS image sensors based on computer modeling and analysis is introduced. Image sensors are composed of different parts, each of which has a specific effect on image quality. Circuits of image sensors can be evaluated and analyzed using circuit simulators or theoretically, but these methods cannot help to produce the final image. In order to produce th...
متن کاملPaper A Structured Light 3-D Acquisition System with a CMOS Image Sensor for Background Suppression and Frequency and Phase Detection
We propose and demonstrate a 3-D acquisition system with background suppression capability based on a structured light projection method. We have designed and demonstrated CMOS image sensor for frequency and phase detection by in-pixel digital demodulation circuit. The demodulation circuits suppress background light and extract modulated signal light that encodes angular information in frequenc...
متن کاملA CMOS Image Sensor for In-Pixel Background Suppression and Frequency and Phase Detection for Structured Light 3-D Acquisition Systems
We designed and demonstrated the operation of a CMOS image sensor for modulated light detection and frequency and phase detection. These two quantities can be used to code the angular information in an active 3-D acquisition method based on structured light. Each pixel is equipped with a pulse-frequency modulator (PFM) [1] and two up/down counters in order to perform frequency and phase calcula...
متن کاملBackside Illuminated Global Shutter Cmos Image Sensors
We report on 2and 4 megapixel backside illuminated image sensors with a 5.5 μm global shutter pixel manufactured in 0.18 μm CMOS. Global shutter pixels require an in-pixel storage node next to the photodiode. This storage node should not be light sensitive. This is specified by parasitic light sensitivity, which is the ratio of the amount of light detected by the storage node divided by the amo...
متن کامل