Camera-based duplex imaging apparatus for imaging a document having no document ejection mechanism
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04N-007/18
H04N-001/19
H04N-001/195
H04N-001/10
G06K-009/20
G06K-009/22
H04N-001/203
출원번호
US-0284361
(2011-10-28)
등록번호
US-8830328
(2014-09-09)
발명자
/ 주소
Hatzav, Iuval
Ben-Shahar, Ilan
Sharaby, Giyora
Hatzav, Daniel
출원인 / 주소
Hatzav, Iuval
인용정보
피인용 횟수 :
1인용 특허 :
2
초록▼
A duplex imaging apparatus for imaging at least one side of a document, including a processor and lower and upper imaging devices. Each imaging device includes an optical-chamber, a camera and a light-source-configuration, facilitated to directly illuminate each face of the document from at least tw
A duplex imaging apparatus for imaging at least one side of a document, including a processor and lower and upper imaging devices. Each imaging device includes an optical-chamber, a camera and a light-source-configuration, facilitated to directly illuminate each face of the document from at least two illuminating angles. The lower imaging device is enclosed by a glass-window, wherein the document is operatively disposed on the glass-window. Each of the light source configurations includes at least one cluster of light sources, wherein the clusters of light sources are operated in a preconfigured sequence. Direct illumination forms hotspots in the acquired image frames at preconfigured locations, corresponding to the light sources positioning. The processor is facilitated to cutout preconfigured image frame portions containing the hotspots, forming clean portions of the image frames, and to combine the clean portions to form a clean output image frame.
대표청구항▼
1. A duplex imaging apparatus for imaging at least one side of a document, having a first side and a second side, the apparatus comprising: (a) a processor;(b) memory coupled to operate with said processor;(c) a lower imaging device having a lower optical-chamber that comprises: i. at least one lowe
1. A duplex imaging apparatus for imaging at least one side of a document, having a first side and a second side, the apparatus comprising: (a) a processor;(b) memory coupled to operate with said processor;(c) a lower imaging device having a lower optical-chamber that comprises: i. at least one lower-camera mounted inside said lower optical-chamber;ii. a lower light-source-configuration, disposed inside said enclosed lower optical-chamber, facilitated to directly illuminate said first side of the document from at least two illuminating angles; andiii. a glass-window, wherein the document is operatively disposed on the external surface of said glass-window, wherein said first side of the document is disposed adjacently to said external surface of said glass-window; and(d) an upper imaging device having an upper optical-chamber that comprises: i. at least one upper-camera mounted inside said upper optical-chamber; andii. an upper light-source-configuration, disposed inside said enclosed upper optical-chamber, facilitated to directly illuminate said second side of the document from at least two illuminating angles, wherein each of said light source configurations includes at least one cluster of light sources, and wherein said clusters of light sources are operated in a preconfigured sequence; wherein said lower-camera is preconfigured to acquire an image frame of a portion of said first side of the document being imaged and store said acquired image frame in said memory, and wherein said image acquisition is operatively coupled with the activation of each of said light sources of said lower light-source-configuration at each of said at least two illuminating angles; wherein said upper-camera is preconfigured to acquire an image frame of a portion of the second side of the document being imaged and store said acquired image frame in said memory, and wherein said image acquisition is operatively coupled with the activation of each of said light sources of said upper light-source-configuration at each of said at least two illuminating angles; wherein a space is formed between said glass-window and said upper-camera, facilitating the insertion of at least a portion of a user's hand, for insertion and removal of the document; wherein hotspots are formed in said acquire an image frames at preconfigured locations; wherein said processor is facilitated to cutout said preconfigured image frame portions containing said hotspots, forming clean portions of said acquired image frame portions; wherein said processor is facilitated to combine said clean portions of acquired image frames of said first side of the document, to form a first output image frame of said portion of said first side of the document; and wherein said processor is facilitated to combine said clean portions of acquired image frames of said second side of the document, to form a second output image frame of said portion of said second side of the document. 2. The duplex imaging apparatus as in claim 1, wherein cross-illuminations are preconfigured not to form in said clean portions of said acquired image frame portions. 3. The duplex imaging apparatus as in claim 1, wherein each of said light source configurations comprises at least two clusters of light sources. 4. The duplex imaging apparatus as in claim 1, wherein the document is an identity document. 5. The duplex imaging apparatus as in claim 1, wherein each individual light source of said light source configuration is selected from the group of light sources type, including infra red (IR), ultra violate (UV) and visible light (VL). 6. The duplex imaging apparatus as in claim 1, wherein each individual light source of said light source configuration is selected from the group including LED, halogen light sources and fluorescence image. 7. The duplex imaging apparatus as in claim 1, wherein all walls of said optical chamber are opaque, except for said glass-window. 8. The duplex imaging apparatus as in claim 1, wherein all internal walls of said optical-chambers, except for said glass-windows, are painted in black. 9. The duplex imaging apparatus as in claim 1, wherein one or both said light source configurations comprise a cluster of light sources and a mechanism for deflecting the light beams emitted from said cluster of light sources, wherein said mechanism for operatively deflecting said light beams to said at least two illuminating angles. 10. A method for imaging a document, comprising the steps of: (a) providing an duplex imaging apparatus including: i. a processor;ii. a lower imaging device having a lower optical-chamber that includes: A) at least one lower-camera mounted inside said lower optical-chamber preconfigured to acquire an image frame of a portion of a first side of the document being imaged;B) a lower light-source-configuration, disposed inside said enclosed lower optical-chamber, facilitated to directly illuminate said first side of the document from at least two illuminating angles; andC) a glass-window, wherein the document is operatively disposed on the external surface of said glass-window, wherein said first side of the document is disposed adjacently to said external surface of said glass-window; andiii. an upper imaging device having an upper optical-chamber that includes: A) at least one upper-camera mounted inside said upper optical-chamber preconfigured to acquire an image frame of a portion of a second side of the document being imaged; andB) an upper light-source-configuration, disposed inside said enclosed upper optical-chamber, facilitated to directly illuminate said second side of the document from at least two illuminating angles; andwherein said clusters of light sources are operated in a preconfigured sequence; andwherein each of said cameras are preconfigured to acquire an image frame of said portions of the document being imaged, in operative synchronization with the activation of respective clusters of light sources;(b) performing the following sequence of image acquisition steps, in a preconfigured order, for all preconfigured sets of said clusters of light sources: i. activating the next set of clusters of light sources to directly illuminating the preconfigured sides of the document being imaged;ii. acquiring corresponding image frames of at least a portion of said preconfigured sides of the document;iii. deactivating said next set of clusters of light sources; andiv. discarding a preconfigured portion of said acquired image frames, thereby sustaining only clean portion of said acquired image frames;(c) combining said clean portions of each of said preconfigured sides of frames to form an output image frame for each said preconfigured sides of the document. 11. The method as in claim 10, wherein said set of said clusters of light sources includes one cluster of light sources; and wherein one image frame is acquired upon said activation of said one cluster of light sources, on the side of the document being illuminated by said one cluster of light sources. 12. The method as in claim 11, wherein said preconfigured sides of the document include both sides of the document. 13. The method as in claim 10, wherein said set of said clusters of light sources includes a pair of clusters of light sources, wherein one cluster of light sources illuminates said first side of the document and the other cluster of light sources illuminates said second side of the document;wherein image frames of both sides of the document are acquired upon said activation of said clusters of light sources; andwherein hotspots are formed in said acquired image frames at preconfigured noisy locations. 14. The method as in claim 13, wherein cross-illuminations are preconfigured to form substantially at said preconfigured noisy locations. 15. The method as in claim 10, wherein said sequence of image acquisition steps is performed a preconfigured number of times, wherein in each of said sequence of image acquisition steps, the illumination intensity of said sets of said clusters of light sources, is different with respect to the other sequences of image acquisition steps.
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이 특허에 인용된 특허 (2)
Tomohiro Nakagawa JP; Koji Asako JP; Keizou Uchioke JP; Masashi Inoue JP; Yasutoshi Kawabata JP, Device for image-shooting both sides of documents.
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