US 11,886,968 B2
Methods and devices for detecting objects and calculating a time to contact in autonomous driving systems
Leobardo Emmanuel Campos Macias, Guadalajara (MX); Rafael de la Guardia Gonzalez, Guadalajara (MX); Anthony Kyung Guzman Leguel, Guadalajara (MX); David Gomez Gutierrez, Tlaquepaque (MX); and Jose Ignacio Parra Vilchis, Guadalajara (MX)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by INTEL CORPORATION, Santa Clara, CA (US)
Filed on Mar. 27, 2020, as Appl. No. 16/831,896.
Prior Publication US 2020/0223434 A1, Jul. 16, 2020
Int. Cl. G06N 20/20 (2019.01); B60W 30/095 (2012.01); G06N 3/04 (2023.01); G06V 10/141 (2022.01); G06V 10/764 (2022.01); G06V 10/147 (2022.01); G06V 20/56 (2022.01)
CPC G06N 20/20 (2019.01) [B60W 30/0956 (2013.01); G06N 3/04 (2013.01); G06V 10/141 (2022.01); G06V 10/147 (2022.01); G06V 10/764 (2022.01); G06V 20/56 (2022.01); B60W 2420/52 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A system for filtering a plurality of event data, the system comprising:
a light source configured to emit towards a scene a transmitted light modulated by a reference signal frequency; and
one or more processors configured to:
obtain the reference signal frequency;
receive the plurality of event data, each comprising a change in a light intensity of a pixel, wherein the pixel is part of an image of the scene reflecting the transmitted light;
determine, for each event data in the plurality of event data, a frequency of the change in the light intensity of the pixel over time;
identify a select event data from the plurality of event data based on whether the frequency of the change in the light intensity of the pixel is substantially the same as the reference signal frequency; and
filter a filter event data from the plurality of event data based on whether the frequency of change in the light intensity of the pixel is not substantially the same as the reference signal frequency.