Three dimensional aimer for barcode scanning
First Claim
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1. A method of assisting in focusing a camera system on an object within a field of view, comprising:
- at the camera system, determining a distance D in a z direction, within the field of view, to a current focal plane; and
rendering to a display, an aimer graphic element with a Z direction distance equal to D in a manner that causes the aimer graphic element to move in the Z direction with changes in the focal plane.
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Abstract
A method of assisting in focusing a three dimensional camera system on an object within a field of view is disclosed. The process involves at the camera system, determining a distance D in a z direction, within the field of view, to a current focal plane; and rendering to a display, an aimer graphic element with the Z direction distance equal to D in a manner that causes the aimer graphic element to move in the Z direction with changes in the focal plane.
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Citations
20 Claims
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1. A method of assisting in focusing a camera system on an object within a field of view, comprising:
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at the camera system, determining a distance D in a z direction, within the field of view, to a current focal plane; and rendering to a display, an aimer graphic element with a Z direction distance equal to D in a manner that causes the aimer graphic element to move in the Z direction with changes in the focal plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of assisting in focusing a camera system on an object within a field of view, comprising:
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at the camera system, determining a distance D in a z direction, within the field of view, to a current focal plane; determining if the object in the field of view is within a depth of field distance Δ
D about the distance D, and;if so, then rendering an aimer graphic with the Z direction distance equal to D to a display in a manner that signifies that the object is in focus, and if not then rendering the aimer graphic with a Z direction distance equal to D to the display in a manner that signifies that the object is not in focus. - View Dependent Claims (12, 13, 14, 15)
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16. A method of assisting in focusing a camera system on an object within a field of view, comprising:
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at the camera system, determining a distance D in a z direction, within the field of view, to a current focal plane; rendering to a display, an aimer graphic with the Z direction distance equal to D in a manner that causes the aimer graphic to move in the Z direction with changes in the focal plane; where the aimer graphic is rendered in a first manner if the distance D is closer to the camera than the object and if the object is outside the depth of field distance Δ
D about the distance D;where the aimer graphic is rendered in a second manner if the object is within the depth of field distance Δ
D about the distance D; andwhere the aimer graphic is rendered in a third manner if the distance D is further from the camera than the object and if the object is outside the depth of field distance Δ
D about the distance D. - View Dependent Claims (17, 18, 19, 20)
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Specification