1. A monitoring system, comprising:
N cameras for successively shooting N sceneries and then outputting N successive images correspondingly, wherein N is a positive integer;
a digital video recorder (DVR) electrically connected to the N cameras for receiving and storing the N successive images;
a monitor for displaying a monitoring screen;
a remote controller for outputting a wireless remote signal;
a receiver for receiving the wireless remote signal and then outputting a wire transmit signal accordingly; and
a host including a processor having an on screen display (OSD) program and a controller electrically connected to the processor for controlling the monitor to display at least the successive image in the monitoring screen, the OSD program electrically connected to the monitor, the receiver and the DVR for controlling the monitor to display at least the successive image in the monitoring screen, wherein the processor utilizes the OSD program to process the wire transmit signal to become a screen adjusting signal when the processor receives the wire transmit signal, and then outputs the wire transmit signal, and wherein the controller receives the screen adjusting signal and then adjusts the monitoring screen according to the screen adjusting signal.
2. The monitoring system according to claim 1, wherein the processor is electrically connected to the receiver and the monitor, and the controller controls the monitor via the processor.
3. The monitoring system according to claim 1, wherein the processor is electrically connected to the receiver and the monitor, and the controller bypasses the processor so as to control the monitor directly.
4. The monitoring system according to claim 1, wherein the host adjusts the size, brightness, contrast or color of the monitoring screen according to the wire transmit signal.
5. The monitoring system according to claim 1, wherein the host adjusts the monitor to display another successive image in the monitoring screen according to the wire transmit signal.
6. The monitoring system according to claim 1, wherein the host controls the monitor to display the M successive images in the monitoring screen, M is a positive integer smaller than or equal to N.
7. The monitoring system according to claim 1, wherein the monitor can be a liquid crystal display (LCD), an organic light emitting diode (OLED) display, a plasma display or an organic electroluminescent device (OELD) display.
8. The monitoring system according to claim 1, further comprising: a keyboard and a mouse both electrically connected to the host for a user to adjust the monitoring screen.
9. A monitoring system, comprising:
N cameras for successively shooting N sceneries and then outputting N successive images correspondingly, wherein N is a positive integer;
a digital video recorder (DVR) electrically connected to the N cameras for receiving and storing the N successive images;
a monitor for displaying a monitoring screen;
a remote controller for outputting a wireless remote signal;
a receiver for receiving the wireless remote signal and then outputting a wire transmit signal accordingly; and
a host having an on screen display (OSD) program electrically connected to the monitor, the receiver and the DVR for controlling the monitor to display at least the successive image in the monitoring screen, wherein the host utilizes the OSD program to process the wire transmit signal to become a screen adjusting signal when the host receives the wire transmit signal, and then the host adjusts the monitoring screen according to the screen adjusting signal, wherein the host comprises:
a processor having the OSD program, wherein the processor utilizes the OSD program to process the wire transmit signal to become the screen adjusting signal when the processor receives the wire transmit signal, and then the processor adjusts the monitoring screen according to the wire transmit signal; and
a controller electrically connected to the processor for controlling the monitor to display at least the successive image in the monitoring screen.
10. The monitoring system according to claim 9, wherein the processor is electrically connected to the receiver and the monitor, and the controller controls the monitor via the processor.
11. The monitoring system according to claim 9, wherein the processor is electrically connected to the receiver and the monitor, and the controller bypasses the processor so as to control the monitor directly.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A system for tracking eye movement comprising:
a detector adapted to receive reflected radiation from a retina defining a spatial extent of a pupil of an eye and to generate data indicative of a positioning of the received radiation on the detector;
a processor in communication with the detector having software resident thereon for determining from an analysis of the data a pupil position; and
a controller in communication with the processor and with means for adjusting a direction of radiation emitted by an illumination source responsive to the determined pupil position in order to substantially center the emitted radiation on the pupil, the illumination source substantially coaxial with the detector and configured to emit a beam of radiation having a diameter less than a pupil diameter.
2. The system recited in claim 1, wherein the illumination source is adapted to emit in the infrared range.
3. The system recited in claim 2, wherein the illumination source is adapted to emit below 1.5 \u03bcm.
4. The system recited in claim 1, wherein the illumination source is selected from a group consisting of a monochromatic laser, a light-emitting diode, and superluminescent light-emitting diode, and a resonant-cavity light-emitting diode.
5. The system recited in claim 1, further comprising a beamsplitter positioned to reflect radiation from the illumination source onto the eye and to pass the reflected radiation to the detector, for permitting a substantially coaxial path of the emitted radiation and the reflected radiation.
6. The system recited in claim 5, wherein the illumination source is polarized, and wherein the beamsplitter comprises a polarizing beamsplitter.
7. The system recited in claim 1, wherein the illumination source is unpolarized, and further comprising means for masking specular reflection from the eye from reaching the detector.
8. The system recited in claim 1, wherein the illumination source is unpolarized, and the detector comprises an imaging detector positioned at a focal plane of the illumination source, the generated data comprise pixel data, and the software is adapted to determine from the pixel data the pupil position.
9. The system recited in claim 1, further comprising a zoom element positioned upstream of the detector for maintaining an image of the pupil at the detector at a substantially constant size.
10. The system recited in claim 1, wherein the detector comprises a non-imaging detector.
11. The system recited in claim 10, wherein the detector comprises a quadrant detector divided into quarters and having a plurality of concentric, substantially toroidal zones subdivided into quarter-sectors by the quarter divisions.
12. The system recited in claim 1, wherein the detector comprises an imaging detector positioned at a focal plane of the laser, the generated data comprise pixel data, and the software is adapted to determine from the pixel data the pupil position.
13. The system recited in claim 12, wherein the detector comprises a complementary metal oxide semiconductor sensor having a windowing capability.
14. The system recited in claim 1, wherein the adjusting means comprises optics positioned downstream of the illumination source and upstream of the pupil, the optics under control of the controller.
15. A system for tracking eye movement comprising:
a non-imaging detector adapted to receive reflected radiation from a retina defining a spatial extent of a pupil of an eye and to generate data indicative of a positioning of the received radiation on the detector;
a processor in communication with the detector having software resident thereon for determining from an analysis of the data a pupil position;
a controller in communication with the processor and with means for adjusting a direction of radiation emitted by an illumination source responsive to the determined pupil position in order to substantially center the emitted radiation on the pupil, the illumination source configured to emit a beam of radiation having a diameter less than a pupil diameter; and
a beamsplitter positioned to reflect radiation from the illumination source onto the eye and to pass the reflected radiation to the detector, configured for permitting a substantially coaxial path of the emitted radiation and the reflected radiation.
16. The system recited in claim 15, wherein the illumination source is polarized, and wherein the beamsplitter comprises a polarizing beamsplitter.
17. The system recited in claim 15, wherein the illumination source is unpolarized, and further comprising means for masking specular reflection from the eye from reaching the detector.
18. The system recited in claim 15, wherein the illumination source is unpolarized, and the detector comprises an imaging detector positioned at a focal plane of the illumination source, the generated data comprise pixel data, and the software is adapted to determine from the pixel data the pupil position.
19. The system recited in claim 15, further comprising a zoom element positioned upstream of the detector for maintaining an image of the pupil at the detector at a substantially constant size.
20. The system recited in claim 15, wherein the detector comprises a quadrant detector divided into quarters and having a plurality of concentric, substantially toroidal zones subdivided into quarter-sectors by the quarter divisions.
21. A method for tracking eye movement comprising the steps of:
receiving on a detector radiation reflected from retina defining a spatial extent of a pupil of an eye;
generating data indicative of a positioning of the received radiation on the detector;
determining from an analysis of the data a pupil position; and
adjusting a direction of radiation emitted by an illumination source responsive to the determined pupil position in order to substantially center the emitted radiation on the pupil, the illumination source substantially coaxial with the detector and configured to emit a beam of radiation having a diameter less than a pupil diameter.
22. The method recited in claim 21, wherein the illumination source is adapted to emit in the infrared range.
23. The method recited in claim 22, wherein the illumination source is adapted to emit below 1.5 \u03bcm.
24. The method recited in claim 21, wherein the illumination source is selected from a group consisting of a monochromatic laser, a light-emitting diode, and superluminescent light-emitting diode, and a resonant-cavity light-emitting diode.
25. The method recited in claim 21, further comprising the step of positioning a beamsplitter to reflect radiation from the illumination source onto the eye and to pass the reflected radiation to the detector, for permitting a substantially coincident path of the emitted radiation and the reflected radiation.
26. The method recited in claim 25, wherein the illumination source is polarized, and wherein the beamsplitter comprises a polarizing beamsplitter.
27. The method recited in claim 21, wherein the illumination source is unpolarized, and further comprising the step of masking specular reflection from the eye from reaching the detector.
28. The method recited in claim 21, wherein the detector comprises a non-imaging detector.
29. The method recited in claim 28, wherein the detector comprises a quadrant detector divided into quarters and having a plurality of concentric, substantially toroidal zones subdivided into quarter-sectors by the quarter divisions.
30. The method recited in claim 29, wherein the determining step comprises, for each quarter, determining an outermost quarter-sector containing reflected radiation and analyzing the data in the outermost quarter-sector only.
31. The method recited in claim 21, wherein the illumination source is unpolarized, and the detector comprises an imaging detector positioned at a focal plane of the illumination source, the generated data comprise pixel data, and the determining step comprises determining from the pixel data the pupil position.
32. The method recited in claim 21, further comprising the step of maintaining an image of the pupil at the detector at a substantially constant size.