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VIDEO

What Makes Teradyne a Leader

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

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VIDEO

What Makes Teradyne a Leader

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

VIDEO

Teradyne Connects and Tests It All

Teradyne solutions span the development process. From concept to shipping product, we have the automation you need.

Watch Now

MARKET REPORT

The Automation Economy: Human and Machine Collaboration

What’s the real story? Go beyond the headlines and shift your mindset about robots and jobs.

Read the Report

VIDEO

Teradyne Connects and Tests It All

Teradyne solutions span the development process. From concept to shipping product, we have the automation you need.

Watch Now

VIDEO

Teradyne Connects and Tests It All

Teradyne solutions span the development process. From concept to shipping product, we have the automation you need.

Watch Now

VIDEO

What Makes Teradyne a Leader

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

VIDEO

What Makes Teradyne a Leader

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

VIDEO

Teradyne Connects and Tests It All

Teradyne solutions span the development process. From concept to shipping product, we have the automation you need.

Watch Now

VIDEO

Let’s Push the Limits of Test

The Production Board Test line-up is better than ever, now available with our new TestStation Development Pro 8.0 Software.

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VIDEO

What Makes Teradyne a Leader

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

VIDEO

What Makes Teradyne a Leader

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

VIDEO

Teradyne Connects and Tests It All

Teradyne solutions span the development process. From concept to shipping product, we have the automation you need.

Watch Now

VIDEO

Teradyne Connects and Tests It All

Teradyne solutions span the development process. From concept to shipping product, we have the automation you need.

Watch Now

VIDEO

What Makes Teradyne a Leader in Test

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

VIDEO

What Makes Teradyne a Leader

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

VIDEO

Teradyne Connects and Tests It All

Teradyne solutions span the development process. From concept to shipping product, we have the automation you need.

Watch Now

VIDEO

What Makes Teradyne a Leader in Test

Teradyne ensures your devices work right the first time – so you can get your products to market and into the hands of customers, fast.

Watch Now

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February 1, 2022

Detecting Spatial Blotches in Image Sensor Devices: SemiCon West 2021

One of the most common defects in image sensor devices is spatial blotches. The appearance of blotches in image sensors is a regular occurrence, and may be generated by internal moving parts or may be moved by air currents within the camera.

Christos Pantelidis, Field Application Engineer for Teradyne, an expert in image sensor testing, discusses a mixed statistical model for dealing with spatial blotches in image sensors.

Composed of two main statistical methods, the first module, employs an inferential method, applying a spatial segmentation of the current frame to obtain candidate spot regions by testing the null hypothesis of each sample. Subsequently, a regression method is added and is applied only on the candidate spots in order to separate the bad pixels that generate the dust spots. Finally, the proposed mixed model is applied under real conditions in order to evaluate its performance in detection stages using a real image capture.

Contact us to learn more about Teradyne’s test solutions.

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