Recent Publications

A Dual In-Pixel Memory CMOS Image Sensor for Computation Photography

Gordon Wan, Xiangli Li, Gennadiy Agranov, Marc Levoy, Mark Horowitz, Symposium on VLSI Circuits Digest of Technical Papers, pp. 94-95, Kyoto, Japan, June 2011.

This paper presents a new image sensor to help applications like high-dynamic range, structured illumination, motion-corrected photography, etc.

A 1.2MP 1/3" Global Shutter CMOS Image Sensor with Pixel-Wise Automatic Gain Selection

Johannes Solhusvik, Sergey Velichko, Trygve Willassen, Sohrab Yaghmai, Jenny Olsson, Anders Rosnes, Tore Martinussen, Per Olaf Pahr, Siri Eikedal, Steve Shaw, Ranjit Bhamra, Scott Smith, Lingtao Jiang, David Wing, Jenny Bai, Satyadev Nagaraja, Ajay Chilumula International Image Sensor Workshop, Japan, June, 2011.

The paper provides insight into Aptina's automated gain selection on a 1/3" image sensor.

Comparison of Objective Metrics for Image Sensor Crosstalk Characterization

Digital Photography VII, Electronic Imaging Conference, San Francisco, CA, 2011

Feng Li, Henrik Eliasson, Alexander Dokoutchaev.

Perceptually Relevant Evaluation of Noise Power Spectra in Adaptive Pictorial Systems

Proc. SPIE 7867, p. 786708 (2011).

Robin B. Jenkin and Brian W. Keelan

Demonstrates that adaptive noise reduction algorithms perform nearly as well on gradients in pictorial scenes as they do on perfectly uniform areas, so that NPS measured from flat fields (rather than ramps) can be used to predict visual perception of noise.

Development of a Perceptually Calibrated Objective Metric of Noise

Proc. SPIE 7867, p. 786707, (2011).

Brian W. Keelan, Elaine W. Jin, and Sergey Prokushki.

Defines an objective metric of noise based on CIELAB-space system noise power spectra, and provides transforms from the metric to just noticeable differences (JNDs) of quality loss for various categories of observer sensitivity and scene susceptibility.

An APS-C Format 14b Digital CMOS Image Sensor with a Dynamic Response Pixel

International Solid State Circuits Conference, pp. 418-419 (2011).

Dan Pates, Jeong-Ho Lyu, Shinji Osawa, Isao Takayanagi, Toshiaki Sato, Tim Bales, Katsuyuki Kawamura, Eduard Pages, Shinichiro Matsuo, Tetsuji Kawaguchi, Tadashi Sugiki, Norio Yoshimura, Junichi Nakamura, John Ladd, Zhiping Yin, Russell Iimura, Xiaofeng Fan, Scott Johnson, Aditya Rayankula, Rick Mauritzson, Gennadiy Agranov

Presents Aptina's APS-C sensor for DSLR applications, featuring unique pixel design with improved low-light sensitivity and high QE and max SNR, as well as high-speed, low noise signal chain.