摘要:
Provided is an optical modulator for modulating light comprising: a superlattice structure having a plurality of interleaved narrow and wide bandgap semiconductor layers, wherein wave functions of energy states of electrons and holes in different narrow bandgap layers are coupled; and a power supply that applies voltage to the superlattice structure between a first non-zero voltage and a second non-zero voltage to modulate the light.
摘要:
A multimode interline charge coupled device having an array of light sensitive pixels, each configured to accumulate photocharge responsive to light incident on the pixel, and a controller configured to allocate a first portion of the pixels to accumulate photocharge responsive to light from a scene during a plurality of exposure periods and allocate a second portion of the pixels to store photocharge accumulated by pixels in the first portion to provide a plurality of images of the scene greater than two.
摘要:
A wearable apparatus configured to acquire zoom images of a portion of an environment viewed by a user responsive to determining a point of regard of the user.
摘要:
An imaging system includes first and second imaging arrays separated by a fixed distance, first and second drivers, and a modulated light source. The first imaging array includes a plurality of phase-responsive pixels distributed among a plurality of intensity-responsive pixels; the modulated light source is configured to emit modulated light in a field of view of the first imaging array. The first driver is configured to modulate the light output from the modulated light source and synchronously control charge collection from the phase-responsive pixels. The second driver is configured to recognize positional disparity between the intensity-responsive pixels of the first imaging array and corresponding intensity-responsive pixels of the second imaging array.
摘要:
A depth-sensing method for a time-of-flight depth camera includes irradiating a subject with pulsed light of spatially alternating bright and dark features, and receiving the pulsed light reflected back from the subject onto an array of pixels. At each pixel of the array, a signal is presented that depends on distance from the depth camera to the subject locus imaged onto that pixel. In this method, the subject is mapped based on the signal from pixels that image subject loci directly irradiated by the bright features, while omitting or weighting negatively the signal from pixels that image subject loci under the dark features.
摘要:
A method of providing a signal to a plurality of signal destinations configured in a planar array, the method comprising: electrically connecting all the signal destinations with at least one conducting element; and providing the signal substantially simultaneously to signal destinations substantially along the perimeter of the planar array and along diagonals of a rectangle.
摘要:
An embodiment of the invention provides a gaze tracker for determining a gaze vector for a person, which comprises a 3D camera that and a picture camera that image the person and a controller that processes images acquired by the cameras to determine a gaze direction and origin for the gaze vector.
摘要:
There is provided a novel method, device and system for imaging. According to some embodiments of the present invention, a visible light image sensor array (e.g. Charge-Couple Device (“CCD”) or Complementary Metal-Oxide-Semiconductor (“CMOS”)) and a ranging sensor array may be arranged substantially facing the same direction and having a substantially overlapping field of view. According to further embodiments of the present invention, a range value derived from one or more ranging sensor elements within the ranging sensor array may be correlated with one or more imaging elements within the visible sensor array. Image processing logic may correlate the derived ranging value with the one or more imaging elements as a function of the derived range.
摘要:
A computing system generates a depth map from at least one image, detects objects in the depth map, and identifies anomalies in the objects from the depth map. Another computing system identifies at least one anomaly in an object in a depth map, and uses the anomaly to identify future occurrences of the object. A system includes a three dimensional (3D) imaging system to generate a depth map from at least one image, an object detector to detect objects within the depth map, and an anomaly detector to detect anomalies in the detected objects, wherein the anomalies are logical gaps and/or logical protrusions in the depth map.
摘要:
A 3D camera for determining distances to regions in a scene wherein gating or modulating apparatus for the 3D camera is incorporated on a photosurface of the camera on which light detectors of the camera are also situated. Each pixel in the photosurface may include its own pixel circuit for gating the pixel on or off or for modulating the sensitivity of the pixel to incident light. The circuit may comprise at least one amplifier inside the pixel, at least one feedback capacitor separate from the light sensitive element and connected between the input and output of each of the at least one amplifier, and at least one controllable connection through which current flows from the light sensitive element into the input of the at least one amplifier. The 3D camera may further include a light source and a controller.