Disclosed herein is a method comprising: moving an image sensor along a first direction among a plurality of positions relative to a scene and capturing partial images of the scene respectively at the plurality of positions; forming an image of the scene from the partial images; wherein the image sensor has an active area and a dead zone; wherein the dead zone extends along a second direction; wherein the second direction is at an angle with the first direction; wherein each point in the scene falls on the dead zone no more than once when the image sensor is at the plurality of positions.

A novel method and a related system are configured to place measured trajectories into a voxel space, which moves with respect to a particle detector system. The trajectories are measured in a detector reference frame. The voxel space, typically fixed with respect to the object being imaged, is tracked optically with markers and a camera system. A decipherable correlation is established between a set of markers and a set of detector elements. This correlation provides coordinate transformation definitions to place the trajectories into the voxel space in medical imaging, treatment planning, and/or therapeutic applications. The novel method provides a clever process to register an optical tracking system with a particle detector system, which improves quality assurance, accuracy, speed, and operating cost efficiencies of ion, particle, and/or radiation-based imaging, treatment planning, or therapies. This novel method may be utilized in proton imaging, helium imaging, other ion-based imaging, or x-ray imaging.

An apparatus comprising a radiation source, coincident positron emission detectors configured to detect coincident positron annihilation emissions originating within a coordinate system, and a controller coupled to the radiation source and the coincident positron emission detectors, the controller configured to identify coincident positron annihilation emission paths intersecting one or more volumes in the coordinate system and align the radiation source along an identified coincident positron annihilation emission path.

An apparatus includes a plurality of x-ray imaging detectors having at least a first x-ray imaging detector and a second x-ray imaging detector. The first and second x-ray imaging detectors are configured sequentially along an x-ray beam propagation direction.

A radiation imaging apparatus includes a pixel array having a plurality of pixels configured to detect radiation, and a controller configured to obtain a radiation generation condition related to a radiation generating apparatus during fluoroscopic imaging, and determine, during the fluoroscopic imaging, timings of a plurality of sampling and holding operations in each of the plurality of pixels in accordance with the radiation generation condition. The timing of at least one sampling and holding operation is a timing in an irradiation period of radiation, and each of the plurality of pixels includes a conversion element configured to convert radiation into an electrical signal, and a sample and hold circuit configured to sample and hold signals from the conversion element multiple times in accordance with the timings, determined by the controller, of the plurality of sampling and holding operations.

An apparatus includes a plurality of x-ray imaging detectors having at least a first x-ray imaging detector and a second x-ray imaging detector. The first and second x-ray imaging detectors are configured sequentially along an x-ray beam propagation direction.

This disclosure describes a user-recognition system configured to target a location of a palm of a user at a wide variety of distances without the need to illuminate and/or capture an entire field of view (FOV) at all times. The user-recognition system comprising a first sensor for capturing an image of the palm, a first mirror disposed with the first sensor, a projector disposed with the first mirror, and a second mirror disposed with the first mirror. The second mirror being displaceable and configured to reflect light, projected from the projector and reflected from the first mirror, in a direction toward the palm, and reflect received light, reflected from the palm to the first mirror and to the first sensor.