APPARATUS AND METHOD FOR RECOGNIZING MOTION BY USING AN EVENT-BASED VISION SENSOR
First Claim
1. An apparatus for recognizing motion using an event-based vision sensor, the apparatus comprising:
- a vision sensor configured to sense a movement-occurring part and output events;
a movement type determiner configured to determine a type of movement using a frequency of occurrence of the events outputted through the vision sensor;
a first motion determiner configured to track a movement trajectory of the movement-occurring part and determine a motion pattern based on the tracked movement trajectory in response to a result of the movement type determiner indicating a small movement;
a second motion determiner configured to determine a direction of movement in which an object moves based on the output events in response to a result of the movement type determination indicating a large movement; and
a motion controller configured to output a control instruction to control a device based on the motion pattern determined by the first motion determiner or the movement direction determined by the second motion determiner.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and method for recognizing motion by using an event-based vision sensor is provided. An apparatus for recognizing motion using an event-based vision sensor includes: a vision sensor to sense a movement-occurring part and output events; a movement type determiner configured to determine a type of movement using a frequency of occurrence of the events outputted through the vision sensor; a first motion determiner configured to track a movement trajectory of the movement-occurring part and determine a motion pattern based on the movement trajectory in response to a result of the movement type determination unit indicating a small movement; a second motion determiner configured to determine a direction of movement direction in which an object moves based on the events in response to a result of the movement type determination indicating a large movement; and a motion controller configured to output a control instruction to control a device.
-
Citations
23 Claims
-
1. An apparatus for recognizing motion using an event-based vision sensor, the apparatus comprising:
-
a vision sensor configured to sense a movement-occurring part and output events; a movement type determiner configured to determine a type of movement using a frequency of occurrence of the events outputted through the vision sensor; a first motion determiner configured to track a movement trajectory of the movement-occurring part and determine a motion pattern based on the tracked movement trajectory in response to a result of the movement type determiner indicating a small movement; a second motion determiner configured to determine a direction of movement in which an object moves based on the output events in response to a result of the movement type determination indicating a large movement; and a motion controller configured to output a control instruction to control a device based on the motion pattern determined by the first motion determiner or the movement direction determined by the second motion determiner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An apparatus for recognizing motion using an event-based vision sensor, the apparatus comprising:
-
a vision sensor to sense a movement-occurring part and output events; a first direction detection filter configured to receive an input of events outputted from a plurality of predetermined receptive fields of the vision sensor, and detect a movement direction in which an object moves, for the plurality of predetermined receptive fields; a second direction detection filter configured to determine a final direction of movement of the object based on the direction of movement detected for the plurality of predetermined receptive fields; and a motion controller configured to output a control instruction for controlling a device based on the determined movement direction. - View Dependent Claims (14, 15, 16)
-
-
17. A method of recognizing motion, the method comprising:
-
receiving an input of an event which corresponds to a movement-occurring part from a vision sensor; determining a type of movement based on a frequency of occurrence of an event; tracking a movement trajectory of the movement-occurring part and determining a motion pattern based on the movement trajectory in response to a result of determining the type of movement indicating a small movement; determining a movement direction in which an object moves based on the events received from the vision sensor in response to a result of the determining the type of movement indicating a large movement; and controlling a device based on the determined motion pattern or the determined direction of movement. - View Dependent Claims (18, 19, 20, 21)
-
-
22. A method of recognizing motion, the method comprising:
-
receiving an input of events outputted from a plurality of predetermined receptive fields of a vision sensor; detecting a movement direction in which an object moves, for the plurality of predetermined receptive fields of the vision sensor; determining a final movement direction of the object based on the movement direction detected for the plurality of predetermined receptive fields; and controlling a device based on the determined final movement direction.
-
-
23. An apparatus for recognizing motion using an event-based vision sensor, the apparatus comprising:
-
a vision sensor configured to sense a movement-occurring part and output events; and a plurality of direction detection filters provided in a hierarchical structure that are configured to receive an input of events outputted from predetermined receptive fields of the vision sensor and recognize a direction of movement.
-
Specification