High speed camera system using a CMOS image sensor

Hillebrand, M.; Stevanovic, N.; Hosticka, B.J.; Conde, J.E. Santos; Teuner, A.; Schwarz, Markus

doi:10.1109/ivs.2000.898423

Cited by 18 publications

(10 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This leads to image sensors equipped with synchronous shutters in order to avoid blur [6]. Other CCD typical problems are: Blooming and smearing [6].…”

Section: Ccd Technology Limitationsmentioning

confidence: 99%

See 1 more Smart Citation

Review of CMOS image sensors

Bigas

Cabruja

Salví

2006

Microelectronics Journal

481

230

View full text Add to dashboard Cite

The role of CMOS Image Sensors since their birth around the 1960s, has been changing a lot. Unlike the past, current CMOS Image Sensors are becoming competitive with regard to Charged Couple Device (CCD) technology. They offer many advantages with respect to CCD, such as lower power consumption, lower voltage operation, on-chip functionality and lower cost. Nevertheless, they are still too noisy and less sensitive than CCDs.Noise and sensitivity are the key-factors to compete with industrial and scientific CCDs. It must be pointed out also that there are several kinds of CMOS Image sensors, each of them to satisfy the huge demand in different areas, such as Digital photography, industrial vision, medical and space applications, electrostatic sensing, automotive, instrumentation and 3D vision systems.In the wake of that, a lot of research has been carried out, focusing on problems to be solved such as sensitivity, noise, power consumption, voltage operation, speed imaging and dynamic range. In this paper, CMOS Image Sensors are reviewed, providing information on the latest advances achieved, their applications, the new challenges and their limitations. In conclusion, the State-of-the-art of CMOS Image Sensors. q

show abstract

“…This leads to image sensors equipped with synchronous shutters in order to avoid blur [6]. Other CCD typical problems are: Blooming and smearing [6].…”

Section: Ccd Technology Limitationsmentioning

confidence: 99%

“…Between 1998 and 2000, N. Stevanovic and M. Hillebrand [6,116,117,114] reported a high speed CMOS camera (see Fig. 9).…”

Section: Manufactured Imagersmentioning

confidence: 99%

Review of CMOS image sensors

Bigas

Cabruja

Salví

2006

Microelectronics Journal

481

230

View full text Add to dashboard Cite

show abstract

“…Recently, high dynamic range CMOS video sensors have been introduced in the market, primarily for various automotive applications, 21,22 whose technical constraints are somewhat similar to those of interior lighting applications. In both cases, the imaging system needs to work under a wide dynamic range, have a fast (more time critical in some real-time automotive applications) but affordable image processing functionality, and finally, have integrated image acquisition and image processing modules that continuously interact with each other.…”

Section: An Image Sensormentioning

confidence: 99%

Integrated daylight harvesting and occupancy detection using digital imaging

2008

View full text Add to dashboard Cite

This paper describes a proof-of-concept implementation that uses a high dynamic range CMOS video camera to integrate daylight harvesting and occupancy sensing functionalities. It has been demonstrated that the proposed concept not only circumvents several drawbacks of conventional lighting control sensors, but also offers functionalities that are not currently achievable by these sensors. The prototype involves three algorithms, daylight estimation, occupancy detection and lighting control. The calibrated system directly estimates luminance from digital images of the occupied room for use in the daylight estimation algorithm. A novel occupancy detection algorithm involving color processing in YCC space has been developed. Our lighting control algorithm is based on the least squares technique. Results of a daylong pilot test show that the system i) can meet different target light-level requirements for different task areas within the field-of-view of the sensor, ii) is unaffected by direct sunlight or a direct view of a light source, iii) detects very small movements within the room, and iv) allows real-time energy monitoring and performance analysis. A discussion of the drawbacks of the current prototype is included along with the technological challenges that will be addressed in the next phase of our research.

show abstract

“…This type of sensor has low power consumption, lower cost compared to CCD, random access to image data [2], selective reading mechanisms [3] and high-speed imaging [4]. All these features make the trend of replacing the CCD to CMOS technology even more evident.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the transit time and frequency response of multifinger PIN SOI photodiodes at IR and UV wavelenghts

Novo

Giacomini

2014

2014 International Caribbean Conference on Devices, Circuits and Systems (ICCDCS)

View full text Add to dashboard Cite

This paper addresses a simultaneous analysis of the intrinsic length (L I ) variation and substrate doping concentration on the AC operation of multifinger SOI PIN photodiodes, in order to investigate the best performance for each application. The results showed that the best frequency response was achieved for devices with smaller L I values and higher substrate doping concentrations, reaching a 3 dB frequency of 10 GHz with 400nm of wavelength. However this configuration causes an efficiency reduction, decreasing the photogenerated current and consequently the responsitivy of the device, due to the smaller photosensitive area. The performance of the diodes was analyzed in the UV and IR range. In the first case, SOI photodiodes demonstrated excellent responsivity and high speed operation because the influence of the capacitive effect of BOX can be neglected, since most of the light radiation is absorbed before reaching the substrate, which proves the excellent SOI device performance for applications that requires higher current levels (greater responsivity) in the UV range. However, in applications for short distance optical communication, which require the use of wavelengths in the IR range, the SOI device has demonstrated low responsivity, but also presents excellent speed of response.

show abstract

High speed camera system using a CMOS image sensor

Cited by 18 publications

References 1 publication

Review of CMOS image sensors

Review of CMOS image sensors

Integrated daylight harvesting and occupancy detection using digital imaging

Evaluation of the transit time and frequency response of multifinger PIN SOI photodiodes at IR and UV wavelenghts

Contact Info

Product

Resources

About