Method, apparatus and system for determining line of sight, and wearable eye movement device

A processor, wherein the processor is configured to run a program, wherein the program, when it is executed, is configured to:

• acquire first gaze information of a user relative to a line of sight tracking module, wherein the line of sight tracking module is close to the user and capable of moving with the user;
• acquire a relative parameter between the line of sight tracking module and a fixed object;
• and
• determine a first reference system of the first gaze information, wherein the first reference system is configured to indicate line of sight of the user relative to the line of sight tracking module;
• convert the first reference system to a second reference system according to the relative parameter, wherein the second reference system is configured to indicate line of sight of the user relative to the fixed object, wherein the relative parameter comprises:
• relative position information between the line of sight tracking module and the fixed object, and coordinate transformation angle information of the line of sight tracking module relative to the fixed object;
• and
• determine, according to the second reference system, the second gaze information corresponding to the first gaze information;
• wherein the second gaze information is gaze information of the user relative to the fixed object.

A system for determining line of sight, comprising:

• a wearable eye tracker, configured to acquire first gaze information of a user relative to the wearable eye tracker, wherein the wearable eye tracker is close to the user and capable of moving with the user;
• a sensor, configured to acquire a relative parameter between the wearable eye tracker and a fixed object;
• and
• a controller, configured to determine a first reference system of the first gaze information, wherein the first reference system is configured to indicate line of sight of the user relative to the line of sight tracking module;
• convert the first reference system to a second reference system according to the relative parameter, wherein the second reference system is configured to indicate line of sight of the user relative to the fixed object, wherein the relative parameter comprises:
• relative position information between the line of sight tracking module and the fixed object, and coordinate transformation angle information of the line of sight tracking module relative to the fixed object;
• and
• determine, according to the second reference system, second gaze information corresponding to the first gaze information;
• wherein the second gaze information is gaze information of the user relative to the fixed object.