SYSTEM AND METHOD FOR SCANNING A SURFACE AND COMPUTER PROGRAM IMPLEMENTING THE METHOD
First Claim
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1. A system for scanning a surface, comprising:
- illumination means of a surface to be scanned (S), which is at least partially reflective;
reception and detection means for receiving and detection a portion (Br) of the light reflected by said surface (S),said reception and detection means comprising light redirection means including a plurality of light redirection elements (GM) arranged according to a determined spatial distribution model (Qr), in a number greater than the number of some light detectors including at least one light detector (D), and configured for receiving portions of reflected light (Br), each of said portions in at least one part of a respective sub-model (SQr) of said determined spatial distribution model (Qr), andsaid light redirection means being configured and arranged for sequentially redirecting each of the portions of reflected light (Br) received in at least said part of each of said sub-models (SQr) towards said at least one light detector (D),wherein the system further comprises light direction means (Me) associated with said illumination means configured for directing at least one light beam (Be) with a determined divergence so that it illuminates different sub-areas of the surface to be scanned (S) in an alternating manner, and wherein said reception and detection means are configured and arranged for receiving and detecting, in an alternating manner, corresponding portions of light (Br) of said light beam (Be) reflected on each of said different sub-areas (Si) of the surface to be scanned (S).
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Abstract
A system and method for scanning a surface and a computer program implementing the method. The method is suitable for performing the functions carried out by the system of the invention. The computer program implements the method of the invention. The system
- means for illuminating illuminates different sub-areas (Si) of a surface (S) with a light beam (Be) in an alternating manner, and
- receives and detects the portions of reflected light (Br) reflected on same, including:
- one or more light detectors (D); and
- light redirection means including a determined spatial distribution model (Qr) of the light redirection elements (GM), which receive the portions of reflected light (Br) and sequentially redirect them towards the light detector or detectors (D).
143 Citations
21 Claims
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1. A system for scanning a surface, comprising:
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illumination means of a surface to be scanned (S), which is at least partially reflective; reception and detection means for receiving and detection a portion (Br) of the light reflected by said surface (S), said reception and detection means comprising light redirection means including a plurality of light redirection elements (GM) arranged according to a determined spatial distribution model (Qr), in a number greater than the number of some light detectors including at least one light detector (D), and configured for receiving portions of reflected light (Br), each of said portions in at least one part of a respective sub-model (SQr) of said determined spatial distribution model (Qr), and said light redirection means being configured and arranged for sequentially redirecting each of the portions of reflected light (Br) received in at least said part of each of said sub-models (SQr) towards said at least one light detector (D), wherein the system further comprises light direction means (Me) associated with said illumination means configured for directing at least one light beam (Be) with a determined divergence so that it illuminates different sub-areas of the surface to be scanned (S) in an alternating manner, and wherein said reception and detection means are configured and arranged for receiving and detecting, in an alternating manner, corresponding portions of light (Br) of said light beam (Be) reflected on each of said different sub-areas (Si) of the surface to be scanned (S). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for scanning a surface, comprising:
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illuminating a surface to be scanned (S) which is at least partially reflective; receiving a portion of reflected light (Br) in at least one part of a respective sub-model (SQr) of a determined spatial distribution model (Qr) in which a plurality of light redirection elements (GM) are arranged in a number greater than a number of light detectors including at least one light detector (D); and sequentially redirecting each portion of portions of reflected light (Br) received in at least said part of each of said sub-models (SQr) towards said at least one light detector (D) of said light detectors, wherein said step of illuminating a surface comprises projecting on said reflective surface to be scanned (S) at least one light beam (Be) with a determined divergence for illuminating a sub-area (Si) of the area forming said surface to be scanned (S), directing said light beam (Be) so that it illuminates different sub-areas (Si) of the surface to be scanned (S) in an alternating manner; and wherein the method further comprises receiving and detecting in said at least one light detector (D), in an alternating manner, corresponding portions of light (Br) of said light beam (Be) reflected on each of said different sub-areas (Si) of the surface to be scanned (S) and redirected from each one of said sub-models (SQr). - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21-35. -35. (canceled)
Specification