Abstract: The present disclosure is related to an imaging camera including a filter wheel. The filter wheel includes a main body including a plurality of receptacles and a plurality of wedges. Each of the wedges is attached to one of the plurality of receptacles. Each of the wedges includes a receiving orifice to a filter. The main body of the filter wheel includes an adapter configured to receive an actuator to actuate the filter wheel. Each wedge is removably attached to one of the plurality of receptacles. The filter wheel is configured to rotate around a central axis of the main body.

Abstract: The present disclosure provides an apparatus including a lens housing coupled to a lens assembly, a first lens disposed in a first end of the lens housing, a lens holder disposed in a second end of the lens housing, a lens aligner coupled to the lens assembly, and an optical element. The optical element is insertable laterally into the lens assembly to adjust a transverse position of the first lens and the second lens based on a thickness of the optical element to align a first axis of the first lens and the second lens to a second axis of a third lens positioned in the lens assembly for imaging an eye.

Abstract: The present disclosure provides an apparatus, system, and method for positioning and retaining a specimen for imaging. The apparatus provides a low-profile stand that incorporates multiple functionalities without occluding the imaging path of an imaging device. The apparatus includes a stand having six degrees of freedom of movement in three-dimensional space. The apparatus includes a base member and an upright member extending from the base member. The apparatus includes an adjustable arm including a pivotable stand. The apparatus may include integrated circuitry for heating and sensors to detect various features of a specimen, including blood oxygen, heart rate, blood pressure, respiration rate, or combinations thereof. Additionally, the apparatus includes an integrated fluid delivery system for delivering a fluid to a specimen without occluding the imaging path of an imaging device or restricting movement of the stand.

Abstract: The present disclosure is related to an imaging camera including a filter wheel. The filter wheel includes a main body including a plurality of receptacles and a plurality of wedges. Each of the wedges is attached to one of the plurality of receptacles. Each of the wedges includes a receiving orifice to a filter. The main body of the filter wheel includes an adapter configured to receive an actuator to actuate the filter wheel. Each wedge is removably attached to one of the plurality of receptacles. The filter wheel is configured to rotate around a central axis of the main body.

Abstract: The present disclosure provides an eye-imaging training apparatus including an actuator to articulate one or more movable eyeball members. The eye-imaging training apparatus provides a caregiver a training tool for practicing various eye-imaging techniques that simulate or mimic natural and animal-like eye movement. For example, the eye-imaging training apparatus may include an eyeball member that can move in multiple directions to simulate human-like eye movement. The eye-imaging training apparatus can train a caregiver to practice, for example, aligning an eye-imaging camera, calibrating the eye-imaging camera (e.g., determining the desired optical parameters), and retracting eyelids for eye-imaging. The present disclosure is also related to systems and methods for eye imaging using an eye-imaging training apparatus.

Abstract: The present disclosure provides an apparatus including a lens housing coupled to a lens assembly, a first lens disposed in a first end of the lens housing, a lens holder disposed in a second end of the lens housing, a lens aligner coupled to the lens assembly, and an optical element. The optical element is insertable laterally into the lens assembly to adjust a transverse position of the first lens and the second lens based on a thickness of the optical element to align a first axis of the first lens and the second lens to a second axis of a third lens positioned in the lens assembly for imaging an eye.

Abstract: The present invention relates generally to identification documents. One claim recites an apparatus to authentic an identification document. The identification document comprising first machine-readable information including a first plural-bit message, and semantic information carried on or in the identification document. The apparatus includes: a first reader to read the first machine-readable information to obtain the first plural-bit message; a second reader to obtain information from the semantic information carried on or in the identification document; an electronic processor programmed as a decryption unit to decrypt the first plural-bit message or the information obtained from the semantic information; and an electronic processor programmed as a decision unit to determine whether the identification document is authentic based at least in part on the first plural-bit message and the semantic information. Other claims and combinations are provided as well.

Abstract: A passport or other document is steganographically encoded with two steganographic digital watermarks. Data conveyed by these watermarks can be cross-checked for expected correspondence to help authenticate the document. The document may also include other machine-readable features, such as a bar code, a magnetic stripe, or OCR-B text. These other machine-readable features can likewise convey data that can be cross-checked for expected correspondence with watermark-conveyed data. In one arrangement, four machine-readable features are provided (two watermarks and two others), three of which convey data relating to a passport identifier, and a different three of which convey data relating to a document batch number. Such logical linking between several machine-readable features allows tampering with any feature to be readily detected. A variety of related methods and apparatuses, some involving a third watermark and biometric data, are also detailed.

Abstract: Digital data is steganographically encoded in printed materials, and—when sensed by an appropriately-equipped webcam or other imaging device—can be used to link to associated electronic resources. Data hidden in a business card, for example, may enable linking to a person's electronic calendar—showing the person's schedule availability. Likewise, data hidden in a corporate ID badge may serve to unlock doors at a corporate office, or to enable access to corporate computers. Many other such applications are detailed.

Abstract: Physical or electronic objects are encoded with identifiers, which serve to trigger object appropriate responses from computer systems that encounter such objects. The encoding may be steganographic (e.g., by digital watermarks), so the presence of such identifiers is not evident to persons encountering the objects. An exemplary application is a computer system that looks at a printed magazine advertisement (20) and initiates a link to a corresponding internet page. In one such implementation, the computer system senses an identifer encoded in the advertisement, forwards the identifier to remote database, receives from the database (17) a corresponding internet address (18a, 18b, 18c), and directs a browser to that address (18a, 18b, 18c). The same arrangement can be used for on-line ordering from printed merchandise catalogs. Another application is a computer system that looks at a printed spreadsheet (20), and retrieves from disk storage an electronic version of the same document for editing.

Abstract: Security documents which has multiple fields or areas each of which contains information that is perceptible in more than one way: One field can contain a visually perceptible image and a digital watermark that can be detected when the image is scanned and processed, and another field can contain watermark data which can be correlated to the output of a fingerprint reader or of apparatus which scans a user's iris. The watermarks in the different graphic elements of the document are correlated to each other and correlated to the visual material on the document. Thus, the document can not be forged by replacing one element (such as a picture) with a similar element from another document. An automatic validation system of the present invention reads multiple fields on the document, and it also automatically detects information about the user. The various information is correlated to validate the document.

Abstract: Security documents which has multiple fields or areas each of which contains information that is perceptible in more than one way: One field can contain a visually perceptible image and a digital watermark that can be detected when the image is scanned and processed, another field can contain machine readable OCR text that can be read by both a human and by a programmed computer, and still another field can contain watermark data which can be correlated to the output of a fingerprint reader or apparatus which scans a user's iris. Documents are produced by begining with a template which defines the placements of elements on the document and the interrelationships between hidden and visual information on the document. The template specifies the placement of elements such as images, photographs, and text and it also specifies the interrelationship between information that is visually perceptible to a user of the document and information that is hidden by means of digital watermarks.