Numerical Evaluation of Image Contrast for Thicker and Thinner Objects among Current Intraoral Digital Imaging Systems

Table 1

Specifications of intraoral digital detectors.

	Digora	VistaScan	Megadixel
Sensor type	PSP	PSP	CCD
Size (mm)	41 × 31	39 × 28	30 × 20
Matrix size	640 × 484	787 × 553	1500 × 1000
Pixel size (mm)	0.064	0.05	0.02
Image format	DICOM	DICOM	DICOM
Input Gray level (bits)	14	16	14
Output Gray level (bits)	8	16	8