摘要:
Device (10) for non-contact measurement, comprising: a light source (18), a light pattern projector (17) comprising a diffractive optical element (173) optically coupled to the light source,an imaging system (16) configured for imaging a target site (8) illuminated by the light pattern projector, a support (15) to which the light pattern projector and the imaging system are attached in fixed relative positions,anda processing unit (12) configured to process data acquired by the imaging system.The support has a longitudinal axis (151) parallel to an optical axis (175) of the light pattern projector (17), wherein the light pattern projector (17) and the imaging system (16) are arranged at spaced apart positions along the longitudinal axis (151).The light source is operable to emit a plurality of light beams of different colours, each one of the plurality of light beams being a coherent beam optically coupled to the diffractive optical element (173). The diffractive optical element is configured to diffract the plurality of light beams according to different diffraction angles resulting in separate patterns. The processing unit is configured to determine a measurement based on at least two positions automatically recognised in data acquired from a single one of the separate patterns
摘要:
Borescopes, such as laparoscopes and endoscopes, configured to provide for image reorientation. In some embodiments, a portion of the borescope, such as the handle, may be rotatable with respect to another portion of the borescope, such as the shaft/tube. A sensor may be provided to translate the rotational positions of these two portions into digital data to allow an image or stream of images to be digitally rotated, preferably in real time, so that a camera module and/or image sensor may be fixed to the tube, such as positioned in a distal tip of the tube, without compromising the ability of the device to allow a surgeon to fix the rotational orientation of the images in a desired manner.
摘要:
Adaptive imaging methods and systems for generating enhanced low light video of an object for medical visualization are disclosed and include acquiring, with an image acquisition assembly, a sequence of reference frames and/or a sequence of low light video frames depicting the object, assessing relative movement between the image acquisition assembly and the object based on at least a portion of the acquired sequence of reference video frames or the acquired sequence of low light video frames, adjusting a level of image processing of the low light video frames based at least in part on the relative movement between the image acquisition assembly and the object, and generating a characteristic low light video output from a quantity of the low light video frames, wherein the quantity of the low light video frames is based on the adjusted level of image processing of the low light video frames.