Abstract: Method and apparatus for generating a dental panoramic image and panoramic camera for photographing teeth, including: determining a frame frequency of a reference detector, and determining frame frequency of a photographing detector; photographing teeth according to the frame frequency of the photographing detector to generate a plurality of images; performing a shift and superposition on the images to generate a first panoramic image; acquiring a fuzzy region in the first panoramic image; and performing a frame frequency adjustment on each row in the fuzzy region to generate a clear image, and fusing the clear image and the first panoramic image to generate a second panoramic image. By using different changing rules of the frame frequency for imaging for each row of the image, both cusps and roots of teeth of the patient may be arranged in a focusing layer, generating a clear image, and improving definition of the panoramic image.

Abstract: The present disclosure provides a computed tomography apparatus and a method for capturing a tomographic image by the same. The device includes: a radiation source configured to emit X rays; a radiation source window; a baffle having a through-hole therein; a control module connected to the baffle via a drive device, configured to control a rotation center of a rotation arm of the apparatus according to a preset photographing condition to determine a photographing position to be captured, and to regulate the baffle via the drive device according to a position of a partial area of a target object when the photographing position is the partial area; and the area array detector configured to convert received X rays penetrating through the through-hole and the partial area to a projection image.

Abstract: A method and apparatus for generating a tooth panoramic image, and a panoramic machine for photographing teeth. The method comprises: determining a frame frequency of a reference detector, and determining a frame frequency of a photographing detector according to the frame frequency of the reference detector; photographing the teeth of a user according to the frame frequency of the photographing detector so as to generate a plurality of images; performing shift superposition on the plurality of images so as to generate a first panoramic image; acquiring a fuzzy region in the first panoramic image; and performing frame frequency adjustment on each row in the fuzzy region so as to form a clear image, and fusing the clear image and the first panoramic image so as to generate a second panoramic image.