System and Method for Improving 3D Sensor Measurement Accuracy

• Main Authors: Lin, Der-Song, Na, Yun-Chung, Chang, Hung-Chih, Li, Yu-Shiuan
• Format: Patent
• Language: English
• Published: 17.02.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

Systems and methods improving three-dimensional sensor measurement accuracy are provided. For instance, an example apparatus can include a distance-estimation system, a distance-refinement system, and a processing system. The distance-estimation system can be configured to receive a first optical signal and determine a first distance between two points in an environment. The distance-refinement system can be configured to receive a second optical signal and determine a second distance between the two points in the environment. The processing system can be configured to receive information representing the first distance and the second distance and determine, based on the first distance and the second distance, a third distance between the two points in the environment. The difference between a true distance of the two points in the environment and the first distance can be larger than a difference between the true distance of the two points in the environment and the third distance.