Enhanced vision system sensitive to infrared radiation
View Patent ↗An enhanced vision system for detecting radiation and producing a detected image signal. A signal processor compares the detected image signal with predefined data representing objects expected to be imaged, and produces an output signal based on the predefined data when sufficient similarity is found between the detected image signal and the predefined data. In some embodiments, the signal processor replaces the detected image signal with the predefined image data. In other embodiments, the signal processor combines some or all of the detected image signal data with the predefined image data. In still other embodiments, the signal processor first modifies the detected image signal data, e.g., by replacing portions of it representing electric lights with discrete dots located at the centers and/for locally maximum intensity values of the lights, and then combines the modified image signal data with the predefined image data.
1. A vision system, comprising:
a detection system configured to detect electromagnetic radiation, and to produce a detected image signal corresponding to radiation detected over a given range of wavelengths; and
a signal processor adapted to compare the detected image signal to predefined data representative of expected sensed objects, and to produce an output signal based on the predefined data when sufficient similarity is found between the detected image signal and the predefined data;
wherein the output signal is an output image signal; and
wherein the signal processor further produces the output image signal based on a combination of the detected image signal and the predefined data.
2. The vision system of claim 1 , wherein the output image signal is modified corresponding to movement of the detection system.
3. The vision system of claim 1 , wherein the signal processor is adapted to modify a portion of the detected image signal before combining the detected image signal with the predefined data to produce the output image signal.
4. The vision system of claim 3 , wherein the modified portion of the detected image signal includes a portion representing a detected radiation source.
5. The vision system of claim 4 , wherein the detected radiation source is an electric light.
6. The vision system of claim 4 , wherein the signal processor is adapted to modify the portion of the detected image signal representing the detected radiation source by replacing that portion with a dot of predefined size.
7. The vision system of claim 6 , wherein the dot is positioned in the output image signal at a position corresponding to the center of the detected radiation source.
8. The vision system of claim 6 , wherein the dot is positioned in the output image signal at a position corresponding to a locally maximum value of the intensity of the detected radiation source.
9. The vision system of claim 1 , wherein the output signal includes information related to the location of the detection system.
10. The vision system of claim 9 , wherein the output signal is modified corresponding to movement of the detection system.
11. The vision system of claim 1 , wherein the signal processor is further adapted to determine the difference between the relative location of an identified object within the detected image signal and a calculated location for the identified object based on predefined data, and to calculate a geographical position of the detector based on the determined difference.
12. A vision system, comprising:
a detection system configured to detect electromagnetic radiation, and to produce a detected image signal corresponding to radiation detected over a given range of wavelengths; and
a signal processor adapted to compare the detected image signal to predefined data representative of expected sensed objects, and to produce an output signal based on the predefined data when sufficient similarity is found between the detected image signal and the predefined data;
wherein the output signal includes information related to the location of the detection system.
13. The vision system of claim 12 , the output signal being an output image signal, wherein the signal processor further produces the output image signal based on a combination of the detected image signal and the predefined data, and wherein the output image signal is modified corresponding to movement of the detection system.
14. The vision system of claim 12 , the output signal being an output image signal, wherein the signal processor further produces the output image signal based on a combination of the detected image signal and the predefined data, and wherein the signal processor is adapted to modify a portion of the detected image signal before combining the detected image signal with the predefined data to produce the output image signal.
15. The vision system of claim 14 , wherein the modified portion of the detected image signal includes a portion representing a detected radiation source.
16. The vision system of claim 15 , wherein the detected radiation source is an electric light.
17. The vision system of claim 15 , wherein the signal processor is adapted to modify the portion of the detected image signal representing the detected radiation source by replacing that portion with a dot of predefined size.
18. The vision system of claim 17 , wherein the dot is positioned in the output image signal at a position corresponding to the center of the detected radiation source.
19. The vision system of claim 17 , wherein the dot is positioned in the output image signal at a position corresponding to a locally maximum value of the intensity of the detected radiation source.
20. The vision system of claim 12 , wherein the output signal is modified corresponding to movement of the detection system.
21. The vision system of claim 12 , wherein the signal processor is further adapted to determine the difference between the relative location of an identified object within the detected image signal and a calculated location for the identified object based on predefined data, and to calculate a geographical position of the detector based on the determined difference.
22. A vision system, comprising:
a detection system configured to detect electromagnetic radiation, and to produce a detected image signal corresponding to radiation detected over a given range of wavelengths; and
a signal processor adapted to compare the detected image signal to predefined data representative of expected sensed objects, and to produce an output signal based on the predefined data when sufficient similarity is found between the detected image signal and the predefined data;
wherein the signal processor is further adapted to determine the difference between the relative location of an identified object within the detected image signal and a calculated location for the identified object based on predefined data, and to calculate a geographical position of the detector based on the determined difference.
23. The vision system of claim 22 , the output signal being an output image signal, wherein the signal processor further produces the output image signal based on a combination of the detected image signal and the predefined data, and wherein the output image signal is modified corresponding to movement of the detection system.
24. The vision system of claim 22 , the output signal being an output image signal, wherein the signal processor further produces the output image signal based on a combination of the detected image signal and the predefined data, and wherein the signal processor is adapted to modify a portion of the detected image signal before combining the detected image signal with the predefined data to produce the output image signal.
25. The vision system of claim 24 , wherein the modified portion of the detected image signal includes a portion representing a detected radiation source.
26. The vision system of claim 25 , wherein the detected radiation source is an electric light.
27. The vision system of claim 25 , wherein the signal processor is adapted to modify the portion of the detected image signal representing the detected radiation source by replacing that portion with a dot of predefined size.
28. The vision system of claim 27 , wherein the dot is positioned in the output image signal at a position corresponding to the center of the detected radiation source.
29. The vision system of claim 27 , wherein the dot is positioned in the output image signal at a position corresponding to a locally maximum value of the intensity of the detected radiation source.
30. The vision system of claim 22 , wherein the output signal includes information related to the location of the detection system, and wherein the output signal is modified corresponding to movement of the detection system.
31. A vision system, comprising:
means for detecting electromagnetic radiation and producing a first detected image signal corresponding to radiation detected over a given range of wavelengths; and
means for comparing the detected image signal to predefined data representative of expected sensed objects, and for producing an output signal based on the predefined data when sufficient similarity is found between the detected image signal and the predefined data;
wherein the output signal is an output image signal; and
wherein the means for producing is further for producing the output image signal based on a combination of the detected image signal and on the predefined data.
32. The vision system of claim 31 , wherein the means for producing is further for modifying a portion of the detected image signal representing a detected radiation source.
33. The vision system of claim 32 , wherein the detected radiation source is an electric light.
34. The vision system of claim 32 , wherein the means for modifying a portion of the detected image signal is further for replacing the portion of the detected image signal representing the detected radiation source with a dot of predefined size.
35. The vision system of claim 34 , wherein the means for modifying a portion of the detected image signal is further for positioning the dot in the output image signal at a position corresponding to the center of the detected radiation source.
36. The vision system of claim 34 , wherein the means for modifying a portion of the detected image signal is further for positioning the dot in the output image signal at a position corresponding to a locally maximum value of the intensity of the detected radiation source.
37. The vision system of claim 31 , wherein the means for producing is further for modifying the output image signal corresponding to movement of the means for detecting electromagnetic radiation.
38. A vision system, comprising:
means for detecting electromagnetic radiation and producing a first detected image signal corresponding to radiation detected over a given range of wavelengths; and
means for comparing the detected image signal to predefined data representative of expected sensed objects, and for producing an output signal based on the predefined data when sufficient similarity is found between the detected image signal and the predefined data;
wherein the output signal is an output image signal; and
wherein the means for producing is further for modifying the output image signal corresponding to movement of the means for detecting electromagnetic radiation.
39. The vision system of claim 38 , wherein the means for producing is further for producing the output image signal based on a combination of the detected image signal and on the predefined data, and wherein the means for producing is further for modifying a portion of the detected image signal representing a detected radiation source.
40. The vision system of claim 39 , wherein the detected radiation source is an electric light.
41. The vision system of claim 39 , wherein the means for modifying a portion of the detected image signal is further for replacing the portion of the detected image signal representing the detected radiation source with a dot of predefined size.
42. The vision system of claim 41 , wherein the means for modifying a portion of the detected image signal is further for positioning the dot in the output image signal at a position corresponding to the center of the detected radiation source.
43. The vision system of claim 41 , wherein the means for modifying a portion of the detected image signal is further for positioning the dot in the output image signal at a position corresponding to a locally maximum value of the intensity of the detected radiation source.