Many high-end imaging systems make use of high-speed image sensors. With resolution ranging from 1 to 4 Mpixels and with readout speed of several thousands of frames per second, these image sensors are very large circuits. They consume usually several Watts and are complex to use and interface due to the large amount of high bandwidth parallel analog busses. However, in various cases where high-speed image sensors are required, it appears that the scene contains sparse, yet fugitive, information. To address this issue, we propose first a novel architecture, for image sensor readout using a pipelined global shutter image sensor in which the readout is asynchronous and not scanned sequentially. Content aware pixels use a dominolike asynchronous readout and do not suffer from ambiguity during the decoding of the addresses. The analog data are then retrieved from the single pixels using the asynchronously read addresses. We present the concept and design. We discuss the required payload in term of pixel surface to perform such operation.
Dupret, A, Dupont, B, Vasiliu, M, Dierickx, B & Defernez, A 2009, CMOS image sensor architecture for high-speed sparse image content readout. in A Theuwissen (ed.), -. -, Unknown Publisher, Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet, Stockholm, Sweden, 21/09/09. <http://users.telenet.be/sbme/bartdierickx/publicaties/2009%20event%20driven.pdf>
Dupret, A., Dupont, B., Vasiliu, M., Dierickx, B., & Defernez, A. (2009). CMOS image sensor architecture for high-speed sparse image content readout. In A. Theuwissen (Ed.), - (-). Unknown Publisher. http://users.telenet.be/sbme/bartdierickx/publicaties/2009%20event%20driven.pdf
@inproceedings{adad87173aa34cb396243abdf4cd443f,
title = "CMOS image sensor architecture for high-speed sparse image content readout",
abstract = "Many high-end imaging systems make use of high-speed image sensors. With resolution ranging from 1 to 4 Mpixels and with readout speed of several thousands of frames per second, these image sensors are very large circuits. They consume usually several Watts and are complex to use and interface due to the large amount of high bandwidth parallel analog busses. However, in various cases where high-speed image sensors are required, it appears that the scene contains sparse, yet fugitive, information. To address this issue, we propose first a novel architecture, for image sensor readout using a pipelined global shutter image sensor in which the readout is asynchronous and not scanned sequentially. Content aware pixels use a dominolike asynchronous readout and do not suffer from ambiguity during the decoding of the addresses. The analog data are then retrieved from the single pixels using the asynchronously read addresses. We present the concept and design. We discuss the required payload in term of pixel surface to perform such operation.",
keywords = "sparse readout, image sensor",
author = "Antoine Dupret and Benoit Dupont and M Vasiliu and Bart Dierickx and Arnaud Defernez",
note = "Albert Theuwissen; Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet ; Conference date: 21-09-2009 Through 25-09-2009",
year = "2009",
month = jun,
day = "26",
language = "English",
series = "-",
publisher = "Unknown Publisher",
editor = "Albert Theuwissen",
booktitle = "-",
}