Latest Image Processing Articles and Videos

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World’s First TinyML Vision Challenge Crowns 2021 Winners

Competitions are always an exciting way to test the limits and ingenuity of both technology and the designer. This week the winners of the first inaugural TinyML Vision Challenge were announced.

October 13, 2021 by Jake Hertz

An Introduction to Digital Signal Processing

This article provides a general understanding of what DSP is, how it works, and what advantages it can offer. To appreciate the advantages of DSP, let’s first have a look at the conventional method of signal processing, i.e., analog signal processing.

June 30, 2021 by Dr. Steve Arar

3 New Image Signal Processors Target Power, Speed, and Autonomous Driving

The push towards autonomous driving is showing a flux of companies releasing image signal processors. What exactly is being improved?

June 16, 2021 by Ikimi .O

Creating a “Super Pixel”: Samsung Claims Industry’s Smallest Mobile Image Sensor

Last week, Samsung released their newest mobile image sensor which they claim is the industry’s smallest pixel size. What are the implications of this shrinking?

June 14, 2021 by Jake Hertz

How CMOS Image Sensors Are Making Strides in Pixel Count and Size

Companies like Sony and OmniVision continue to develop advanced CMOS image sensors, while the Emmys pay respect to Kodak as one of the forerunners in digital imaging.

March 11, 2021 by Adrian Gibbons

Researchers Claim World’s First Terahertz IC May Leapfrog Past 5G to 6G

Working closely with ROHM Semiconductor, researchers at Osaka University have developed a device that operates in the terahertz spectrum to transmit large, uncompressed 8K videos uninterrupted within a 300 GHz bandwidth.

February 09, 2021 by Antonio Anzaldua Jr.

Continuous-Time Sigma-Delta ADCs: the “Alias-Free” ADC

In this article, we'll review the basics of sigma-delta ADCs—and continuous-time sigma-delta ADCS in particular—using a recent CTSD from ADI as an example.

December 10, 2020 by Dr. Steve Arar

Introduction to CMOS Image Sensors

In this article, you'll learn the basics of the CMOS image sensor, including its core components, its block diagram, its strengths and weaknesses, and its applications.

November 09, 2020 by Dr. Steve Arar

A New Dual RGB-IR Sensor Put to Use in Endoscopes for Cancer Detection

OmniVision claims this small form factor RGB-IR sensor may significantly advance medical imaging.

October 01, 2020 by Nicholas St. John

Ultrasound Receiver Architecture Undergoes a Seismic Shift

Ultrasound, with nearly a century of technological history, has seen its third major technological breakthrough coming out of North Carolina State.

August 20, 2020 by Adrian Gibbons

What Is Dynamic Range?

The concept of dynamic range appears frequently in engineering discussions. But what exactly does this term mean? And how does it apply to electronic circuits and systems?

June 03, 2020 by Robert Keim

Determining Dynamic Range of CCD Image Sensors

This article explains how CCD construction, operating parameters, and external signal-processing circuitry contribute to the maximum variation in luminance that CCD imaging hardware can capture.

May 29, 2020 by Robert Keim

Quantum Efficiency and Signal-to-Noise Ratio in CCD Image Sensors

In this article, we’ll draw upon our knowledge of noise sources and combine it with some new information to create a comprehensive model for CCD noise performance.

May 25, 2020 by Robert Keim

Photon Noise, Read Noise, and Reset Noise in CCD Image Sensors

In this article, we’ll take a look at electrical and optical conditions that contribute to reduced image quality in CCD camera systems.

May 22, 2020 by Robert Keim

Anti-Aliasing Filters: Applying Sampling Theory to ADC Design

This article examines an important aspect of the Nyquist–Shannon sampling theorem and explains its connection to the need for anti-aliasing filters in analog-to-digital conversion.

May 20, 2020 by Robert Keim

The Nyquist–Shannon Sampling Theorem: Exceeding the Nyquist Rate

This article continues our series on sampling theory by explaining the importance of oversampling in real-life mixed-signal systems.

May 18, 2020 by Robert Keim

The Nyquist–Shannon Theorem in the Frequency Domain

This article continues our discussion of sampling theory and introduces the concept of aliasing.

May 07, 2020 by Robert Keim

CCD Binning in Imaging Systems: Increasing Signal-to-Noise Ratio and Frame Rate

This article explains a technique that allows us to incorporate flexibility into the operational parameters of a CCD imaging system.

April 20, 2020 by Robert Keim

Sampling, Amplifying, and Digitizing CCD Output Signals

In this article, we’ll see that the amount of noise in image data from a CCD sensor can be greatly reduced by a technique known as correlated double sampling.

April 09, 2020 by Robert Keim

Understanding Digital Oscilloscope Sample Rate and Analog Bandwidth Specs

In this article, we’ll examine two important specifications of a digital oscilloscope: analog bandwidth and sampling rate.

March 24, 2020 by Dr. Steve Arar