Active aperture control and sensor modulation for flexible imaging

Chunyu Gao, Narendra Ahuja, Hong Hua

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

In the paper, we describe an optical system which is capable of providing external access to both the sensor and the lens aperture (i.e., projection center) of a conventional camera. The proposed optical system is attached in front of the camera, and is the equivalent of adding externally accessible intermediate image plane and projection center. The system offers controls of the response of each pixel which could be used to realize many added imaging functions, such as high dynamic range imaging, image modulation, and optical computation. The ability to access the optical center could enable a wide variety of applications by simply allowing manipulation of the geometric properties of the optical center. For instance, panoramic imaging can be implemented by rotating a planar mirror about the camera axis; and small base-line stereo can be implemented by shifting the camera center. We have implemented a bench setup to demonstrate some of these functions. The experimental results are included.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
DOIs
StatePublished - 2007
Event2007 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, CVPR'07 - Minneapolis, MN, United States
Duration: Jun 17 2007Jun 22 2007

Other

Other2007 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, CVPR'07
CountryUnited States
CityMinneapolis, MN
Period6/17/076/22/07

Fingerprint

Cameras
Modulation
Imaging techniques
Sensors
Optical systems
Lenses
Mirrors
Pixels
Control systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Vision and Pattern Recognition
  • Software
  • Control and Systems Engineering

Cite this

Gao, C., Ahuja, N., & Hua, H. (2007). Active aperture control and sensor modulation for flexible imaging. In Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition [4270244] https://doi.org/10.1109/CVPR.2007.383219

Active aperture control and sensor modulation for flexible imaging. / Gao, Chunyu; Ahuja, Narendra; Hua, Hong.

Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition. 2007. 4270244.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gao, C, Ahuja, N & Hua, H 2007, Active aperture control and sensor modulation for flexible imaging. in Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition., 4270244, 2007 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, CVPR'07, Minneapolis, MN, United States, 6/17/07. https://doi.org/10.1109/CVPR.2007.383219
Gao C, Ahuja N, Hua H. Active aperture control and sensor modulation for flexible imaging. In Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition. 2007. 4270244 https://doi.org/10.1109/CVPR.2007.383219
Gao, Chunyu ; Ahuja, Narendra ; Hua, Hong. / Active aperture control and sensor modulation for flexible imaging. Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition. 2007.
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