Image quality assessment of 2-chip color camera in comparison with 1-chip color and 3-chip color cameras in various lighting conditions: initial results

Sina Adham Khiabani; Yun Zhang; Fatemeh Fathollahi

doi:10.1117/12.2053551

21 May 2014 Image quality assessment of 2-chip color camera in comparison with 1-chip color and 3-chip color cameras in various lighting conditions: initial results

Sina Adham Khiabani, Yun Zhang, Fatemeh Fathollahi

Author Affiliations +

Proceedings Volume 9100, Image Sensing Technologies: Materials, Devices, Systems, and Applications; 91000W (2014) https://doi.org/10.1117/12.2053551
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

A 2-chip color camera, named UNB Super-camera, is introduced in this paper. Its image qualities in different lighting conditions are compared with those of a 1-chip color camera and a 3-chip color camera. The 2-chip color camera contains a high resolution monochrome (panchromatic) sensor and a low resolution color sensor. The high resolution color images of the 2-chip color camera are produced through an image fusion technique: UNB pan-sharp, also named FuzeGo. This fusion technique has been widely used to produce high resolution color satellite images from a high resolution panchromatic image and low resolution multispectral (color) image for a decade. Now, the fusion technique is further extended to produce high resolution color still images and video images from a 2-chip color camera. The initial quality assessments of a research project proved that the light sensitivity, image resolution and color quality of the Super-camera (2-chip camera) is obviously better than those of the same generation 1-chip camera. It is also proven that the image quality of the Super-camera is much better than the same generation 3-chip camera when the light is low, such as in a normal room light condition or darker. However, the resolution of the Super-camera is the same as that of the 3- chip camera, these evaluation results suggest the potential of using 2-chip camera to replace 3-chip camera for capturing high quality color images, which is not only able to lower the cost of camera manufacture but also significantly improving the light sensitivity.

Citation Download Citation

Sina Adham Khiabani, Yun Zhang, and Fatemeh Fathollahi "Image quality assessment of 2-chip color camera in comparison with 1-chip color and 3-chip color cameras in various lighting conditions: initial results", Proc. SPIE 9100, Image Sensing Technologies: Materials, Devices, Systems, and Applications, 91000W (21 May 2014); https://doi.org/10.1117/12.2053551

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KEYWORDS

Cameras

Light sources and illumination

Image resolution

Sensors

Image quality

Image fusion

Optical filters

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