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1. (WO2018160902) DWELL-ANGLE-INDEPENDENT TRACKING AND MONITORING OBJECTS USING LIDAR
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Pub. No.: WO/2018/160902 International Application No.: PCT/US2018/020546
Publication Date: 07.09.2018 International Filing Date: 01.03.2018
IPC:
G01C 3/08 (2006.01) ,G01S 17/06 (2006.01) ,G01S 7/41 (2006.01)
G PHYSICS
01
MEASURING; TESTING
C
MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
3
Measuring distances in line of sight; Optical rangefinders
02
Details
06
Use of electric means to obtain final indication
08
Use of electric radiation detectors
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02
Systems using the reflection of electromagnetic waves other than radio waves
06
Systems determining position data of a target
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
02
of systems according to group G01S13/58
41
using analysis of echo signal for target characterisation; Target signature; Target cross-section
Applicants:
DSCG SOLUTIONS, INC. [US/US]; 3859 Centerview Drive Suite 300 Chantilly, Virginia 20151, US
Inventors:
SEBASTIAN, Richard; US
Agent:
GORDON, Ronald L.; US
FORD, Timothy D.; US
BENNETT, Daniel M.; US
KEY, Joseph F.; US
BRAKE, R. Edward; US
BELLERMANN, Mark R.W.; US
HUGHES, William G.; US
GROVER, Melanie; US
Priority Data:
15/906,53527.02.2018US
62/465,90902.03.2017US
Title (EN) DWELL-ANGLE-INDEPENDENT TRACKING AND MONITORING OBJECTS USING LIDAR
(FR) SUIVI INDÉPENDANT DE L'ANGLE DE BALAYAGE ET SURVEILLANCE D'OBJETS À L'AIDE D'UN LIDAR
Abstract:
(EN) A remote tracking system such as a LIDAR system may track objects such as human faces. In such objects there is a natural axis of symmetry that is seen to be substantially normal to the orientation of the object. Nevertheless, because the object is typically in motion, one cannot expect that beams incident on the object to be normal to the object consistently. Rather, the beams tend to dwell on the object at some skew angle. In a typical case, the detected beam pattern from a given portion of the object is dependent on this dwell angle. In conventional remote tracking systems, it may be difficult to identify the portion of the object efficiently through all of the possible beam patterns due to variation of the dwell angle. It is an objective of improved techniques described herein to efficiently monitor and track an object regardless of the dwell angle.
(FR) L'invention concerne un système de suivi à distance tel qu'un système LIDAR pouvant suivre des objets tels que des visages humains. Dans de tels objets se trouve un axe de symétrie naturel considéré comme sensiblement normal par rapport à l'orientation de l'objet. Néanmoins, étant donné que l'objet est généralement en mouvement, on ne peut pas attendre que des faisceaux incidents sur l'objet soient normaux par rapport à l'objet de façon constante. Au lieu de cela, les faisceaux tendent à balayer l'objet à un certain angle d'inclinaison. Dans un cas typique, le motif de faisceau détecté à partir d'une partie donnée de l'objet dépend de cet angle de balayage. Dans les systèmes de suivi à distance classiques, il peut être difficile d'identifier la partie de l'objet de manière efficace à travers tous les motifs de faisceau possibles en raison de la variation de l'angle de balayage. L'invention concerne des techniques améliorées permettant de surveiller et de suivre efficacement un objet indépendamment de l'angle de balayage.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)