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1. (WO2018100518) METHODS AND DEVICES FOR DISPLAYING IMAGE WITH CHANGED FIELD OF VIEW
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

CLAIMS:

1. An image-display method comprising:

al . positioning a first display screen so that a display surface of said first display screen fills substantially the entire visual field of a first eye of a human and is not visible to a second eye of said human;

bl . at a first display refresh-rate:

i. from a first video stream extracting a pixelated still first base image having a first base field of view, said first base image representing a first scene, said first base image being digital image data stored in a digital memory;

ii. from said first base image, creating a pixelated first display image being digital image data representing said entire first scene, said first display image having a first display field of view different from said first base field of view, so that said first scene as represented by said first display image has a field of view not greater than the visual field of said first eye, said creating said first display image comprising while retaining the position of each pixel relative to neighboring pixels translating pixels, each translated pixel from a base coordinate in said first base image to a display coordinate in said first display image, and

iii. on said first display screen displaying said first display image to said first eye so that the entire said first field of view of said first display image is perceived by the visual field of said first eye at one time,

thereby allowing said first eye to perceive an entirety of said first scene at one time.

2. The method of claim 1, wherein said first display screen is positioned such that relative to said first eye gazing straight ahead, said first display screen fills the visual field of said first eye horizontally not less than 50° nasally, not less than 40° temporally, vertically not less than 40° up and vertically not less than 40° down.

3. The method of any one of claims 1 to 2, wherein said video stream is a prerecorded video stream.

4. The method of any one of claims 1 to 2, wherein said first base image is provided in real-time from a concurrently-acquired video stream.

5. The method of claim 4, wherein said video stream is acquired with a remote video camera.

6. The method of claim 4, wherein said video stream is acquired with a video camera mounted on the head of said human, optionally mounted on the head of said human, immediately in front of said first eye.

7. The method of any one of claims 1 to 6, further comprising:

determining the gaze direction of said first eye; and

creating and/or displaying said first display image also based on said determined gaze direction.

8. The method of any one of claims 1 to 7, wherein during said creating of said first display image, pixels from a specific portion of said first base image are preserved and not translated so that the preserved portion of said first display image corresponding to said preserved portion of said first base image are the same.

9. The method of claim 8, further comprising:

determining the gaze direction of said first eye; and

creating and/or displaying said first display image also based on said determined gaze direction so that said preserved portions of said first base image that correspond to specific portions of the visual field of said first eye are perceived by said specific portions of the visual field of said first eye in said first display image.

10. The method of any one of claims 1 to 7, wherein during said creating of said first display image, pixels from portions of said first base image corresponding to at least part of the foveal visual field of said first eye are not translated so that said portions of said first display image corresponding to said part of the foveal visual field of said first eye are the same as the corresponding portion of said first base image.

11. The method of claim 10, further comprising:

determining the gaze direction of said first eye; and

creating and/or displaying said first display image also in accordance with said determined gaze direction so that the portion of said first display image corresponding to said part of the foveal visual field of said first eye is positioned to be perceived by the foveal visual field of said first eye.

12. The method of any one of claims 1 to 7 and 10 to 11, wherein during said creating of said first display image, pixels from portions of said first base image corresponding to the macular visual field of said first eye are not translated so the portions of said first display image corresponding to the macular visual field of said first eye are the same as the corresponding portion of said first base image.

13. The method of claim 12, further comprising:

determining the gaze direction of said first eye; and

creating and/or displaying said first display image also in accordance with said determined gaze direction so that the portion of said first display image corresponding to the macular visual field of said first eye is positioned to be perceived by the macular visual field of said eye.

14. The method of any one of claims 1 to 13, wherein the visual field of said first eye includes at least one blind spot and at least some of said translation of said pixels is such that substantially no pixels representing said scene are located at a portion of said first display image that corresponds to at least one of said at least one blind spot, the method further comprising:

determining the gaze direction of said first eye; and

displaying and/or creating said first display image also in accordance with said determined gaze direction so that substantially no pixels representing said scene are located at a portion of said first display image that corresponds to at least one of the at least one blind spots in the visual field of the eye.

15 The method of claim 15, wherein said translation of pixels during said creating of said first display image comprises outward radial translation of pixels away from a point located at a portion of said first display image that corresponds to a point inside said at least one blind spot.

16. The method of any one of claims 1 to 15, wherein said base field of view has at least one angular dimension greater than the visual field of said first eye; and

said translation of pixels for said creating of said first display image is such that said greater angular dimension of said scene is compressed into said display field of view of said first display image.

17. The method of claim 16, wherein said translation of pixels comprises vertically translating pixels of said first base image towards a horizontal line in said first base image, thereby compressing a vertical angular dimension of said scene into said display field of view of said first display image.

18. The method of claim 17, wherein said vertical translating of pixels towards said horizontal line is inhomogeneous so that the further a pixel is from said horizontal line, the greater the magnitude of said vertical translation.

19. The method of any one of claims 16 to 17, wherein the magnitude of vertical translation of a pixel is a smooth function of a distance of said pixel from said horizontal line so that said vertical translation of pixels along a vertical line in said base image is devoid of any discontinuity.

20. The method of any one of claims 16 to 19, wherein said translation of pixels comprises horizontally translating pixels of said first base image towards a vertical line in said first base image, thereby compressing a horizontal angular dimension of said scene into said display field of view of said first display image.

21. The method of claim 20, wherein said horizontal translating of pixels towards said vertical line is inhomogeneous so that the further a pixel is from said vertical line, the greater the magnitude of said horizontal translation.

22. The method of any one of claims 20 to 21, wherein the magnitude of horizontal translation of a pixel is a smooth function of a distance of said pixel from said vertical line so that said horizontal translation of pixels along a horizontal line in said base image is devoid of any discontinuity.

23. The method of any one of claims 16 to 22, wherein said translation of pixels comprises radially translating pixels of said first base image towards a point in said first base image, thereby compressing both a horizontal and a vertical angular dimension of said scene into said display field of view of said first display image.

24. The method of claim 23, wherein said radial translating of pixels towards said point is inhomogeneous so that the further a pixel is from said point, the greater the magnitude of said radial translation.

25. The method of any one of claims 23 to 24, wherein the magnitude of radial translation of a pixel is a smooth function of a distance of said pixel from said point so that said radial translation of pixels along a radial line in said base image is devoid of any discontinuity.

26. The method of any one of claims 1 to 25, wherein no display screen is positioned before said second eye of said human.

27. The method of any one of claims 1 to 25, further comprising:

a2. positioning a second display screen so that a display surface of said second display screen fills substantially the entire visual field of a second eye of a human and is not visible to said first eye of said human;

b2. at a second display refresh-rate:

i. from a second video stream extracting a pixelated still second base image having a second base field of view, said second base image representing a second scene, said second base image being digital image data stored in a digital memory,

ii. from said second image, creating a pixelated second display image being digtal image data representing said entire second scene, said second display image having a second display field of view different from said second base field of view, so that said second scene as represented by said second display image has a field of view not greater than the visual field of said second eye, said creating said second display image comprising while retaining the position of each pixel relative to neighboring pixels translating pixels, each translated pixel from a base coordinate in said second base image to a display coordinate in said second display image, and

iii. on said second display screen displaying said second display image to said second eye so that the entire said second field of view of said second display image is perceived by the visual field of said second eye at one time, thereby allowing said second eye to perceive an entirety of said second scene at one time.

28. The method of claim 27, wherein said second display screen is positioned such that relative to said second eye gazing straight ahead, said second display screen fills the visual field of said second eye horizontally not less than 50° nasally, not less than 40° temporally, vertically not less than 40° up and vertically not less than 40° down.

29. The method of any one of claims 27 to 28, wherein said first video stream and said second video stream are the same.

30. The method of any one of claims 27 to 29, wherein said first video stream and said second video stream are different and together constitute a binocular pair of video streams.

31. The method of any one of claims 27 to 30, wherein said first scene and said second scene are the same, and said first base image and said second base image are different and together constitute a binocular pair of images of said scene.

32. The method of any one of claims 27 to 30, wherein said first scene and said second scene are different.

33. The method of any one of claims 27 to 32, wherein a portion of said first display image that corresponds to a part of the foveal visual field of said first eye and a portion of said second display image that corresponds to the respective part of the foveal visual field of said second eye are a binocular pair.

34. The method of any one of claims 27 to 32, wherein a portion of said first display image that corresponds to the entire foveal visual field and a part of the macular visual field of said first eye and a portion of said second display image that corresponds to the entire foveal visual field and respective part of the macular visual field of said second eye are a binocular pair, and other portions of said first display image and said second display image are not binocular pairs.

35. The method of any one of claims 27 to 32, wherein a portion of said first display image that corresponds to the entire foveal visual field and a part of the macular visual field of said first eye and a portion of said second display image that corresponds to the entire foveal visual field and respective part of the macular visual field of saod second eye are a binocular pair and other portions of said first display image and said second display image are not binocular pairs.

36. The method of any one of claims 27 to 32, wherein a portion of said first display image that corresponds to the entire foveal visual field and the entire macular visual field of said first eye and a portion of said second display image that corresponds to the entire foveal visual field and the entire macular visual field of said second eye are a binocular pair and other portions of said first display image and said second display image are not binocular pairs.

37. A monocular headset configured to be worn on the head of a human, comprising: a single display screen mounted on a headset body, so that when said headset body is worn on the head of a human, said display screen is positioned so that a display surface of said display screen fills substantially the entire visual field of a first eye of a human and is not visible to a second eye of said human; and

functionally associated with said display screen, a digital processor including a video input port configured to accept a video stream via said video input port and to implement the method of any one of claims 1 to 26 with a said video stream using said display screen,

optionally further comprising an eye-tracker to determine the gaze direction of a said first eye and to provide the determined gaze direction to said processor.

38. The monocular headset of claim 37, further comprising a digital video camera with a video outlet port functionally associated with said video input port of said processor, said video camera configured to acquire video images and to output a digital video stream corresponding to said video images via said video outlet port to said processor.

39. The monocular headset of claim 38, wherein said video camera is physically attached to said headset body.

40. The monocular headset of claim 39, wherein said video camera is physically attached to said headset body before said display screen.

41. A binocular headset configured to be worn on the head of a human, comprising:

a first display screen mounted on a headset body, so that when said headset body is worn on the head of a human, said first display screen is positioned so that a display surface of said first display screen fills substantially the entire visual field of a first eye of a human and is not visible to a second eye of said human;

a second display screen mounted on said headset body, so that when said headset body is worn on the head of a human, said second display screen is positioned so that a display surface of said second display screen fills substantially the entire visual field of a second eye of a human and is not visible to a said first eye of said human; and functionally associated with said first display screen and with said second display screen, a digital processor including a video input port configured to accept a video stream via said video input port and to implement the method of any one of claims 27 to 36 with a said video stream using said first display screen and said second display screen,

optionally further comprising an eye-tracker to determine the gaze direction of a said first eye and of a said second eye, and to provide the determined gaze directions to said processor.

42. The binocular headset of claim 42, further comprising at least one of:

i. a digital binocular video camera with a video outlet port functionally associated with said video input port of said processor, said binocular video camera configured to acquire binocular pairs of monocular video images and to output a digital binocular video stream corresponding to said video images via said video outlet port to said processor; and

ii. a first digital video camera with a first video outlet port functionally associated with said video input port of said processor, said first video camera configured to acquire monocular video images and to output a first monocular digital video stream corresponding to said monocular video images via said video outlet port to said processor, and

a second digital video camera with a second video outlet port functionally associated with said video input port of said processor, said second video

camera configured to acquire monocular video images and to output a second monocular digital video stream corresponding to said monocular video images via said video outlet port to said processor.

43. The binocular headset of claim 42, comprising said digital binocular video camera, physically attached to said headset body, optionally attached so that each one of said monocular video streams of said binocular video images is acquired from before a different one of a first eye and a second eye of a human wearing said headset body.

44. The binocular headset of claim 42, comprising said first digital video camera and said second digital video camera physically attached to said headset body.

45. The binocular headset of claim 42, comprising

said first digital video camera physically attached to said headset body before said first display screen; and

said second digital video camera physically attached to said headset body before said second display screen

so that a video stream output of said first digital video camera and a video stream output of said second digital video camera taken together constitute a binocular pair.