Color filters and processing alternatives for one-chip cameras

Parulski, Kenneth A.

doi:10.1109/t-ed.1985.22133

Cited by 77 publications

(26 citation statements)

References 17 publications

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“…It is analyzed in the works of (Parulski (1985)), (Adams (1995)), ), (Zen et al (1998)) and of (Sakamoto et al (1998)). …”

Section: Demosaicing Bayer Patternmentioning

confidence: 99%

“…It is analyzed in the works of (Parulski (1985)), (Wu et al (1997)), (Chan et al, 1996), (Tsai et al (1997)), (Zen et al (1998)), (Adams et al (1998)) and also of (Sakamoto et al (1998)). In other works, such as in (Lukin (2004a)) and in (Lukin (2004b)) Bilinear Interpolation method forms the base for more sophisticated algorithm; in (Malvar (2004)) this method is studied for non-linear interpolation algorithm on rhomboidal grid.…”

Section: Demosaicing Bayer Patternmentioning

confidence: 99%

See 1 more Smart Citation

Demosaicing Low Resolution Qvga Bayer Pattern

Guseo¹,

Menegatti²

2007

Proceedings of the Second International Conference on Computer Vision Theory and Applications

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Abstract:In this paper, we present a solution for the interpolation of low resolution digital images. Many digital cameras can function in two resolution modes: VGA (i.e., 640×480) and QVGA (i.e., 320×240). These cameras use a single sensor covered with a Color Filter Array (CFA). The CFA allows only one color component to be measured at each pixel, the remaining color components must be interpolated, this operation is called demosaicing. There is not a standard way to interpolate the QVGA Bayer pattern and most of the known demosaicing algorithms are not suitable. In this paper, we propose a new solution for the interpolation of QVGA Bayer pattern. Experimental results using digital images and an evaluation function confirm the effectiveness of the interpolation method. The use of the QVGA resolution is important in low-cost and low-power embedded hardware. As an application, we chose the RoboCup domain and in particular our Robovie-M humanoid robot competing in the RoboCup Kid-Size Humanoids League.

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“…It is analyzed in the works of (Parulski (1985)), (Adams (1995)), ), (Zen et al (1998)) and of (Sakamoto et al (1998)). …”

Section: Demosaicing Bayer Patternmentioning

confidence: 99%

Section: Demosaicing Bayer Patternmentioning

confidence: 99%

Demosaicing Low Resolution Qvga Bayer Pattern

Guseo¹,

Menegatti²

2007

Proceedings of the Second International Conference on Computer Vision Theory and Applications

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show abstract

“…This approach can be used both for up and down sampling without performing a specific scaling operation. Many methods are described for down scaling in a CFA pattern by sub-sampling [3]- [5]. However, no methods are described for both up and down sampling of interpolated tri-color data taking into consideration the relative locations of R, G and B components in the captured CFA.…”

Section: Color Interpolationmentioning

confidence: 99%

A Prototype of Autonomous Intelligent Surveillance Cameras

Kharitonenko

Lichman

et al. 2006

2006 IEEE International Conference on Video and Signal Based Surveillance

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This paper presents an architecture and an FPGAbased prototype of an autonomous intelligent video surveillance camera. The camera takes the advantage of high resolution of CMOS image sensors and enables instantly automatic pan, tilt and zoom adjustment based upon motion activity. It performs automated scene analysis and provides immediate response to suspicious events by optimizing camera capturing parameters. The video output of the camera can be optimized to any region of interest while the camera continues to monitor the entire scene. Field trials of the prototyped camera have verified the proposed architecture. Disciplines Physical Sciences and Mathematics

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“…Cheng, 2003). By suppressing the dark current, the fixed pattern noise of the imager and the white pixel-defects can be reduced (K. A. Parulski, 1985). Photo diodes and pixel architecture of image sensors have been optimized to reduce image artifacts and hence dark current.…”

Section: Introductionmentioning

confidence: 99%