Skip to main content

LED Flicker Tutorial Paper

IE 2008 publishes a paper "LED flicker: Root cause, impact and measurement for automotive imaging applications" by Brian Deegan, Valeo Vision Systems.

"In recent years, the use of LED lighting has become widespread in the automotive environment, largely because of their high energy efficiency, reliability, and low maintenance costs. There has also been a concurrent increase in the use and complexity of automotive camera systems. To a large extent, LED lighting and automotive camera technology evolved separately and independently. As the use of both technologies has increased, it has become clear that LED lighting poses significant challenges for automotive imaging i.e. so-called "LED flicker". LED flicker is an artifact observed in digital imaging where an imaged light source appears to flicker, even though the light source appears constant to a human observer. This paper defines the root cause and manifestations of LED flicker. It defines the use cases where LED flicker occurs, and related consequences. It further defines a test methodology and metrics for evaluating an imaging systems susceptibility to LED flicker."

Comments

Popular posts from this blog

Zoom - Home Edition 1.3.0.0 | Perpustakaan Slide - semua slide Anda dalam satu tempat untuk memilih, menciptakan, cetak, email

Zoom - Perpustakaan Slide adalah kecil, sederhana, mudah untuk menggunakan alat organisasi yang dirancang khusus untuk presentasi PowerPoint. Zoom memberikan gambaran lengkap dari seluruh perpustakaan slide PPT.  Anda dapat memilih, cetak, email, atau pdf slide yang ada dan presentasi. Anda dapat bekerja di beberapa slide presentasi dengan PowerPoint tanpa menyentuh sama sekali. Anda dapat

SMAMDA Festival Videographer

SMAMDA Fest Videographer 2016 #increiblesf2016 - Smamda Fest Videographer 2016. Mungkin banyak dari kalian sudah sering mendengar mengenai Smamda Fest. Apa sih Smamda Fest itu? kok banyak yang promosi tentang Smamda Fest? Pertanyaan-pertanyaan berikut akan saya bahas pada artikel ini. SMAMDA Festival adalah sebuah acara yang diadakan oleh SMA Muhammadiyah 2 Sidoarjo. Pada acara tersebut

Photonics Spectra on Emerging Image Sensor Applications

Photonics Spectra publishes an article " Emerging Applications Drive Image Sensor Innovations " Hank Hogan. Few quotes: " Vendors are responding by increasing sensor spectral range, integrating new capabilities into devices, and adding features such as 3D imaging. The result can be rapid growth in sensors, even in areas that are relatively stable. For instance, the worldwide market for cars is expanding at a relatively modest pace, according to Geoff Ballew, senior director of marketing in the automotive sensing division of chipmaker ON Semiconductor Corp. of Phoenix. However, tepid growth is not the case for the automotive imaging solutions. “The number of sensors consumed and attached to those cars is growing wildly,” he said. “The image sensor chip business is growing in excess of 15 to 20 percent a year. The reason for that is cameras increasingly are adding new functionality to cars.” Automotive sensors are expected to work from -40 to 125 °C. That interacts with th...