TRIGGERING OF INTRAORAL X-RAY SENSOR USING PIXEL ARRAY SUB-SAMPLING

摘要

A method of capturing an x-ray image including providing an intraoral sensor having an array of pixels having a plurality of pixel clusters and a plurality of lines of pixels, each line of pixels having a first number of pixels different from the pixel clusters. The method may also include directing x-ray radiation toward the intraoral sensor and generating an electrical signal correlated to the x-ray radiation that impinges the pixel. The method may also include processing electrical signals generated by one or more pixels in the plurality of pixel clusters, generating at least one combined signal for at least one of the pixel clusters based on the signals from each of the pixels in the at least one of the pixel clusters, and initiating the capture of the image generated with information from each of the pixels in the array of pixels that is exposed to radiation.

主权项

1. A method of capturing an x-ray image, the method comprising:
providing an intraoral sensor having an array of pixels including a plurality of pixel clusters and a plurality of lines of pixels, each line of pixels having a first number of pixels different from the pixel clusters; each of the pixel clusters including a second number of pixels that is less than the first number of pixels, the plurality of pixel clusters spaced regularly across the array; directing x-ray radiation toward the intraoral sensor; when the x-ray radiation impinges a pixel in the array of pixels, generating an electrical signal correlated to the x-ray radiation that impinges the pixel; processing electrical signals generated by one or more pixels in the plurality of pixel clusters in an electronic control unit by reading the pixel clusters; generating at least one combined signal for at least one of the pixel clusters based on the signals from each of the pixels in the at least one of the pixel clusters; and when the at least one combined signal exceeds a predetermined threshold, initiating the capture of the image generated with information from each of the pixels in the array of pixels that is exposed to radiation.