Three dimensional aimer for barcode scanning
First Claim
Patent Images
1. A system, comprising:
- a processing unit to determine a distance D in a z-direction corresponding to a three-dimensional coordinate system within a field of view of an imaging device to a current focal plane; and
a display unit, coupled to the processing unit, to render 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 on the display unit with changes in the focal plane to assist in focusing the imaging device on an object in the field of view.
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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
22 Claims
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1. A system, comprising:
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a processing unit to determine a distance D in a z-direction corresponding to a three-dimensional coordinate system within a field of view of an imaging device to a current focal plane; and a display unit, coupled to the processing unit, to render 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 on the display unit with changes in the focal plane to assist in focusing the imaging device on an object in the field of view. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system, comprising:
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a processing unit; display unit coupled to the processing unit; wherein the processing unit is configured to; determine a distance D in a z direction corresponding to a three-dimensional coordinate system, within a field of view of an imaging device to a current focal plane; calculate a depth of field distance Δ
D;render, on the display unit, an aimer graphic with the Z direction distance equal to D in a manner signifying that the object is in focus based on a determination that the object in the field of view is within the depth of field distance Δ
D about the distance D, andrender, on the display unit, the aimer graphic with the Z direction distance equal to D on the display in a manner signifying that the object is not in focus based on the determination that the object in the field of view is not within the depth of field distance Δ
D about the distance D. - View Dependent Claims (14, 15, 16, 17)
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18. A system comprising:
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a processing unit to determine a distance D in a z direction corresponding to a three-dimensional coordinate system within a field of view of an imaging device to a current focal plane; a display, coupled to the processing unit, whereon an aimer graphic element, with the z-direction equal to D, is rendered; wherein the aimer graphic element moves, on the display, in the z-direction with changes in the focal plane; wherein the aimer graphic element is rendered; in a first manner based on the determination that the distance D is closer to the imaging device than the object and the object is outside the depth of field distance Δ
D about the distance D;in a second manner based on the determination that the object is within the depth of field distance Δ
D about the distance D; andin a third manner based on the determination that the distance D is further from the imaging device than the object and the object is outside the depth of field distance Δ
D about the distance D. - View Dependent Claims (19, 20, 21, 22)
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Specification