61 |
PULSED LASER FOR LIDAR SYSTEM |
US15804997 |
2017-11-06 |
US20180069367A1 |
2018-03-08 |
Alain Villeneuve; Joseph G. LaChapelle; Jason M. Eichenholz |
A lidar system comprising with a light source, an optical link, and a sensor head. The light source can include a seed laser to produce pulses of light and an optical preamplifier to amplify the pulses of light. The optical link can convey amplified pulses of light to the sensor head remotely located from the light source. The sensor head can include an optical booster amplifier, a scanner to scan amplified output pulses of light across a field of regard, and a receiver to detect pulses of light scattered by a target located a distance from the sensor head. |
62 |
LIDAR SYSTEM WITH DISTRIBUTED LASER AND MULTIPLE SENSOR HEADS |
US15470730 |
2017-03-27 |
US20170199277A1 |
2017-07-13 |
Alain Villeneuve; Jason M. Eichenholz |
A lidar system which includes one or more light sources to produce one or more optical signals and a demultiplexer to separate the one or more optical signals into a plurality of sub-portions which may be distributed to a plurality of sensor heads. The sensor heads emit the sub-portions of the one or more optical signals into a plurality of fields of view and to detect reflected or scattered light from the fields of view. The lidar system also includes one or more optical amplifiers and one or more filters to reduce amplified spontaneous emission produced by the one or more optical amplifiers. |
63 |
OPTICAL MONITORING OF SCAN PARAMETERS |
US14816107 |
2015-08-03 |
US20170038581A1 |
2017-02-09 |
Niv Gilboa; Zeev Roth; Rafael Halfon; Oz Barak |
Scanning apparatus includes a transmitter, which is configured to emit a beam comprising pulses of light, and a scanner, which is configured to scan the beam along a scan axis over a specified angular range. A scattering line extends across a path of the scanned beam. A receiver is configured to receive the light scattered from the scattering line and to generate an output indicative of an intensity of the scattered light. A controller is coupled to process the output of the receiver so as to monitor operation of the scanner. |
64 |
Object removal using lidar-based classification |
US13918159 |
2013-06-14 |
US09523772B2 |
2016-12-20 |
Aaron Matthew Rogan; Benjamin James Kadlec |
In scenarios involving the capturing of an environment, it may be desirable to remove temporary objects (e.g., vehicles depicted in captured images of a street) in furtherance of individual privacy and/or an unobstructed rendering of the environment. However, techniques involving the evaluation of visual images to identify and remove objects may be imprecise, e.g., failing to identify and remove some objects while incorrectly omitting portions of the images that do not depict such objects. However, such capturing scenarios often involve capturing a lidar point cloud, which may identify the presence and shapes of objects with higher precision. The lidar data may also enable a movement classification of respective objects differentiating moving and stationary objects, which may facilitate an accurate removal of the objects from the rendering of the environment (e.g., identifying the object in a first image may guide the identification of the object in sequentially adjacent images). |
65 |
Laser illuminated gas imaging device for determining inoperable gas detection pixels |
US14310914 |
2014-06-20 |
US09464984B2 |
2016-10-11 |
Matthew F. Schmidt; Tyler B. Evans; Derek Hutton |
Aspects of the invention generally relate to illumination gas imaging and detection. Camera systems can illuminate a target scene with light sources configured to emit absorbing and non-absorbing wavelengths with respect to a target gas. An image of the target scene illuminated with a non-absorbing wavelength can be compared to a non-illuminated image of the target scene in order to determine information about the background of the target scene. If sufficient light of the non-absorbing wavelength is scattered by the scene toward a detector, the target scene comprises an adequate background for performing a gas imaging process. A camera system can alert a user of portions of the target scene suitable or unsuitable for performing a gas imaging process. If necessary, the user can reposition the system until sufficient portions of the target scene are recognized as suitable for performing the gas imaging process. |
66 |
PLANAR IMAGING SENSOR |
US14666762 |
2015-03-24 |
US20160282177A1 |
2016-09-29 |
Tero Heinonen |
A planar imaging sensor is provided. The planar imaging sensor comprises a plurality of photo detectors, wherein the plurality of photo detectors are divided into at least a first group and a second group. The number of photo detectors in the second group is larger than the number of photo detectors in the first group. The photo detectors of the first group are configured to have a first detection window, while the photo detectors of the second group are configured to have a second detection window. The second detection window is configured to start later in time than the first detection window. |
67 |
Distance measurement apparatus |
US13962196 |
2013-08-08 |
US09316495B2 |
2016-04-19 |
Shuichi Suzuki; Kenichi Yoshimura; Mitsuru Nakajima; Yusuke Hayashi |
A distance measurement apparatus that measures distance to a target by irradiating the target with laser beams and detecting light reflected by the target includes a light projection unit. The distance measurement apparatus also includes a plurality of light emission units to emit a plurality of laser beams onto the target while setting optical paths of the plurality of laser beams radially along a given virtual plane; and a light receiving unit including a plurality of light receivers to receive the plurality of laser beams projected from the light projection unit and reflected by the target. |
68 |
Target localization utilizing wireless and camera sensor fusion |
US14064020 |
2013-10-25 |
US09270952B2 |
2016-02-23 |
Mark Jamtgaard; Nathan Mueller |
According to some implementations, an estimate of a target's location can be calculated by correlating Wi-Fi and video location measurements. This spatio-temporal correlation combines the Wi-Fi and video measurements to determine an identity and location of an object. The accuracy of the video localization and the identity from the Wi-Fi network provide an accurate location of the Wi-Fi identified object. |
69 |
INTEGRATED MULTIFUNCTION SCOPE FOR OPTICAL COMBAT IDENTIFICATION AND OTHER USES |
US14734530 |
2015-06-09 |
US20160018189A1 |
2016-01-21 |
Tony Maryfield; Mahyar Dadkhah; Thomas Potendyk |
Systems and methods for enabling an integrated multifunction scope for optical combat identification and other uses. The functionality of Multiple Integrated Laser Engagement System (MILES) is combined with Optical Combat Identification Systems (OCIDS) or other identification as friend or foe (IFF) systems. This can provide for improved MILES performance through the utilization of a common laser transmission system and/or the use of location information systems, such as global positioning system (GPS) coordinates. According to some embodiments, various additional features may be included for use in training and/or combat environments. |
70 |
Proximity sensor |
US14371750 |
2013-01-11 |
US09223054B2 |
2015-12-29 |
Yosuke Morita |
A proximity sensor detects an object to be detected. The proximity sensor includes a board; at least three light emitting portions which are mounted on a surface of the board such that not all the light emitting portions is arranged on a straight line, and which emits light; and a light receiving portion which is mounted on the surface of the board so as to have a predetermined positional relationship with the three light emitting portions, and which receives reflected light derived from light emitted from the light emitting portions and reflected by the object to be detected. |
71 |
Interferometric millimeter wave and THz wave doppler radar |
US13873898 |
2013-04-30 |
US09103904B2 |
2015-08-11 |
Shaolin Liao; Nachappa Gopalsami; Sasan Bakhtiari; Apostolos C. Raptis; Thomas Elmer |
A mixerless high frequency interferometric Doppler radar system and methods has been invented, numerically validated and experimentally tested. A continuous wave source, phase modulator (e.g., a continuously oscillating reference mirror) and intensity detector are utilized. The intensity detector measures the intensity of the combined reflected Doppler signal and the modulated reference beam. Rigorous mathematics formulas have been developed to extract bot amplitude and phase from the measured intensity signal. Software in Matlab has been developed and used to extract such amplitude and phase information from the experimental data. Both amplitude and phase are calculated and the Doppler frequency signature of the object is determined. |
72 |
LOW POWER MOVEMENT SENSOR |
US14339503 |
2014-07-24 |
US20150032412A1 |
2015-01-29 |
SERGEY CHIZHEVSKIY; EREZ ROTEM; ERAN BASIS; YEHIEL LIPKA |
A detection system for monitoring and recording distance to at least one target. The detection system may comprise at least one module comprising: a power source; a trigger unit configured to detect the presence of the target; an enablement mechanism in communication with the trigger unit and operable to generate an enablement signal upon detection of the target; a data gathering unit comprising at least one measurement sensor operable to obtain at least one measured parameter and to record the at least one measured parameter in a memory; and a retrieval mechanism for providing access to records stored in the memory. |
73 |
Imaging System |
US14351048 |
2012-07-13 |
US20150009486A1 |
2015-01-08 |
Alexander Potemkin; Elena Ivanova Smirnova |
An imaging system is provided, having a housing, an inlet opening receiving radiation from objects and an optical system. The optical system includes a reception channel for visible radiation, an infra-red radiation channel, a channel of the laser range finder having a laser radiation source, a photoreceptor and spectral splitters. All channels are optically coupled to one another. An optical element made from a material that transmits the radiation in the working range of the photoreceptor and is inserted into the inlet opening to hermetically seal the system. The reception channel for the visible radiation and the infra-red radiation channel are constructed as an optoelectronic multichannel system having at least two channels, the optical axes of which coincide and are situated inside the inlet opening. |
74 |
PROXIMITY SENSOR |
US14371750 |
2013-01-11 |
US20150001414A1 |
2015-01-01 |
Yosuke Morita |
A proximity sensor detects an object to be detected. The proximity sensor includes a board; at least three light emitting portions which are mounted on a surface of the board such that not all the light emitting portions is arranged on a straight line, and which emits light; and a light receiving portion which is mounted on the surface of the board so as to have a predetermined positional relationship with the three light emitting portions, and which receives reflected light derived from light emitted from the light emitting portions and reflected by the object to be detected. |
75 |
DISTANCE MEASUREMENT APPARATUS |
US13962196 |
2013-08-08 |
US20140071428A1 |
2014-03-13 |
Shuichi SUZUKI; Kenichi Yoshimura; Mitsuru Nakajima; Yusuke Hayashi |
A distance measurement apparatus that measures distance to a target by irradiating the target with laser beams and detecting light reflected by the target includes a light projection unit. The distance measurement apparatus also includes a plurality of light emission units to emit a plurality of laser beams onto the target while setting optical paths of the plurality of laser beams radially along a given virtual plane; and a light receiving unit including a plurality of light receivers to receive the plurality of laser beams projected from the light projection unit and reflected by the target. |
76 |
Large scale metrology apparatus and method |
US13214717 |
2011-08-22 |
US08582119B2 |
2013-11-12 |
W. Thomas Novak; Daniel G. Smith; Lloyd Holland |
A metrology system that uses a plurality of photo-detecting targets positioned on the objects to be assembled, a plurality of rotating photo-emitting heads, a master signal generator that generates a reference RF signal, and a signal processor that determines the position of each of the targets from signals generated by each target in response to the photo-emitting heads. During operation, the reference RF signal is broadcast to the rotating photo-emitting heads and the photo-detecting targets. The RF signal is used to determine the azimuth of the heads relative to a zero reference position to a high degree of accuracy. |
77 |
Method and apparatus for analyzing tree canopies with LiDAR data |
US12645348 |
2009-12-22 |
US08537337B2 |
2013-09-17 |
Jeffrey J. Welty |
A system and method for analyzing a canopy of a forest by analyzing the spatial uniformity of LiDAR data point heights in a number of areas surrounding a tree top, where the areas are smaller than the expected size of the crown of the tree. In one embodiment, the spatial uniformity is quantified as a canopy closure vector based on an analysis of the LiDAR data point heights in a frequency domain. In one particular embodiment, the standard deviation of the frequency components in the cells of a number of rings centered around the average value in an FFT output matrix is used to quantify the spatial uniformity. |
78 |
OBSTACLE SENSOR AND ROBOT CLEANER HAVING THE SAME |
US13616137 |
2012-09-14 |
US20130076893A1 |
2013-03-28 |
Yeon Kyu JEONG; Shin KIM; Jeong Hun KIM; Jong Owan KIM; Sang Sik YOON; Dong Hun LEE; Jea Yun SO |
An obstacle sensor includes a line light irradiating unit including a light-emitting unit, a light-emitting driving unit to drive the light-emitting unit, and a first conical mirror, an apex of which is disposed towards the light-emitting unit in a light irradiation direction of the light-emitting unit and which converts light emitted from the light-emitting unit into line light irradiated in all directions, and a reflected light receiving unit including a second conical mirror to condense light, that is irradiated from the first conical mirror and is then reflected from an obstacle, a lens, that is spaced from the apex of the second conical mirror by a predetermined distance and transmits the reflected light, an imaging unit to image the reflected light that passes through the lens, an image processing unit, and an obstacle sensing control unit. |
79 |
Device and method for detecting a plant |
US12794389 |
2010-06-04 |
US08340402B2 |
2012-12-25 |
Peter Schmitt; Franz Uhrmann; Oliver Scholz; Guenther Kostka; Ralf Goldstein; Lars Seifert |
A device for detecting a plant includes a two-dimensional camera for detecting a two-dimensional image of a plant leaf having a high two-dimensional resolution, and a three-dimensional camera for detecting a three-dimensional image of the plant leaf having a high three-dimensional resolution. The two-dimensional camera is a conventional high-resolution color camera, for example, and the three-dimensional camera is a TOF camera, for example. A processor for merging the two-dimensional image and the three-dimensional image creates a three-dimensional result representation having a higher resolution than the three-dimensional image of the 3D camera, which may include, among other things, the border of a leaf. The three-dimensional result representation serves to characterize a plant leaf, such as to calculate the surface area of the leaf, the alignment of the leaf, or serves to identify the leaf. |
80 |
LARGE SCALE METROLOGY APPARATUS AND METHOD |
US13214717 |
2011-08-22 |
US20120050726A1 |
2012-03-01 |
W. Thomas Novak; Daniel G. Smith; Lloyd Holland |
A metrology system that uses a plurality of photo-detecting targets positioned on the objects to be assembled, a plurality of rotating photo-emitting heads, a master signal generator that generates a reference RF signal, and a signal processor that determines the position of each of the targets from signals generated by each target in response to the photo-emitting heads. During operation, the reference RF signal is broadcast to the rotating photo-emitting heads and the photo-detecting targets. The RF signal is used to determine the azimuth of the heads relative to a zero reference position to a high degree of accuracy. |