HANDHELD MOBILE DEVICE FOR DETECTION OF BIOLOGICAL EVIDENCE

• US 20180252647A1
• Filed: 09/07/2016
• Published: 09/06/2018
• Est. Priority Date: 09/07/2015
• Status: Active Grant

• Current Assignee: MobileODT Ltd
• Original Assignee: MobileODT Ltd
• Inventors: LEVITZ, David, BEERY, Ariel, SLYPER, Ronit
• Granted Patent: US 10,753,874 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: G01J 2003/102 Plural sources
• CPC Class Codes: G01J 2003/2826 Multispectral imaging, e.g. filter imaging
• CPC Class Codes: G01J 3/0224 using polarising or depolarising elements
• CPC Class Codes: G01J 3/0237 Adjustable, e.g. focussing
• CPC Class Codes: G01J 3/0264 Electrical interface; User interface
• CPC Class Codes: G01J 3/0272 Handheld
• CPC Class Codes: G01J 3/0283 using a charging unit
• CPC Class Codes: G01J 3/10 Arrangements of light sources specially adapted for spectrometry or colorimetry
• CPC Class Codes: G01J 3/2823 Imaging spectrometer
• CPC Class Codes: G01J 3/32 Investigating bands of a spectrum in sequence by a single detector
• CPC Class Codes: G01J 3/42 Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry beam switching arrangements G01J3/08
• CPC Class Codes: G01N 21/21 Polarisation-affecting properties G01N21/19 takes precedence
• CPC Class Codes: G01N 21/4738 Diffuse reflection precedence is given to G01N21/55 - G01N21/57 if specular component is taken into consideration, e.g. also for testing fluids, fibrous materials
• CPC Class Codes: G01N 21/6456 Spatial resolved fluorescence measurements; Imaging
• CPC Class Codes: G01N 2201/0221 Portable; cableless; compact; hand-held
• CPC Class Codes: G06T 2200/24 involving graphical user interfaces [GUIs]
• CPC Class Codes: G06T 2207/10064 Fluorescence image
• CPC Class Codes: G06T 2207/10152 Varying illumination
• CPC Class Codes: G06T 7/0014 using an image reference approach
• CPC Class Codes: H04N 21/4316 : for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/47 : End-user applications
• CPC Class Codes: H04N 23/56 : provided with illuminating means
• CPC Class Codes: H04N 5/44504 : Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits

Abstract

A system comprising: a mobile device, comprising: a camera configured to capture multiple images of a subject; a processor configured to identify a first image of the captured images as a blue frame, wherein the image was captured while the subject was illuminated by blue light, and identify a second image of one of the captured images as a white frame, wherein the image was captured while the subject was illuminated by white light; associate the blue frame with the white frame; detect a feature depicted in the blue frame that is not depicted in the associated white frame, indicate the detection of the feature to a user; and a user interface display configured to separately render the blue frame and the white frame.

Claims

1. A system comprising:

a multifunction mobile device, comprising;

a camera configured to capture multiple frames of a subject;

a processor configured to

identify a first frame of the multiple captured frames as a blue frame, wherein the first frame was captured while the subject was illuminated by blue light, identify a second frame of the multiple captured frames as a white frame, wherein the second frame was captured while the subject was illuminated by white light;

associate the blue frame with the white frame;

detect a feature depicted in the blue frame that is not depicted in the associated white frame,

indicate the detection of the feature; and

a user interface display configured to separately render the blue frame and the white frame.

2. The system of claim 1, wherein the processor is further configured to determine a peak blue level of the captured frames.

3. The system of claim 2, wherein identifying the blue frame and identifying the white frame comprises synchronizing the identification of the frames with a predefined alternating blue light and white light illumination cycle using a time stamp associated with the captured frames, and a time stamp associated with the peak blue level.

6. The system of claim 1, wherein, responsive to an indication by a user, the blue frame is rendered on a combination of the primary and secondary portions of the display.

10. The system of claim 1, wherein indicating the detection of the feature comprises displaying a graphic indicator overlaid on the rendering of the white frame at a location corresponding to the location of the detected feature on the associated blue frame;

wherein displaying the graphic indicator comprises any of;

a) displaying an outline around the feature,

b) displaying a box surrounding the feature,

c) displaying an arrow pointing to the feature,

d) simultaneously displaying the white frame in association with a scaled-down rendering of the blue frame,

e) displaying a partially transparent rendition of the blue frame overlaid on the associated white frame,

f) displaying a zoomed view of the detected feature,

g) displaying a corresponding portion of the blue frame overlaid on the displayed white frame responsive to an indication by the user,

h) displaying any of the graphic indicators of a) to g) in a pulsed manner, displaying a meter indicating a level of interest for the detected feature.

12. The system of claim 1, wherein rendering the blue frame separately from the white frame comprises alternately rendering the blue frame and white frame on a common portion of the display.

13. The system of claim 1, further comprising a lamp configured to alternately emit white light and blue light at a predefined illumination cycle.

14. The system of claim 13, wherein the lamp is mounted with the multifunction mobile device.

16. The system of claim 1, wherein the processor is further configured to store the blue frame in association with the white frame.

18. The system of claim 1, further comprising a polarization difference imaging (PDI) acquisition apparatus configured to acquire a PDI image of the subject, wherein the processor is further configured to detect a PDI feature depicted in the PDI image that is not depicted in any of the blue frame and the white frame and indicate the detection of the PDI feature.

4-5. -5. (canceled)

7-9. -9. (canceled)

11. (canceled)

15. (canceled)

17. (canceled)

19. A computer program product comprising a non-transitory computer-readable storage medium having program code embodied therewith, the program code executable by at least one hardware processor to:

identify a first frame of multiple captured frames of a subject as a blue frame, wherein the first frame was captured while the subject was illuminated by blue light,

identify a second frame of the multiple captured frames of the subject as a white frame, wherein the second frame was captured while the subject was illuminated by white light, and

associate the blue frame with the white frame;

detect a feature depicted in the blue frame that is not depicted in the associated white frame; and

separately render the blue frame and the white frame on a user interface display and indicate the detection of the feature.

20. The computer program product of claim 19, wherein identifying the blue frame and the identifying the white frame comprises determining a peak blue level of the captured frames.

21. The computer program product of claim 19, wherein the program code is further executable to synchronize the identification of the blue and white frames to a predefined alternating blue light and white light illumination cycle using a time stamp associated with the blue and white frames, and a time stamp of the peak blue level.

23. The computer program product of claim 19, wherein separately rendering comprises simultaneously rendering the white frame on a primary portion of the user interface display and rendering the blue frame on a secondary portion of the user interface display.

24. The computer program product of claim 19, wherein, responsive to an indication by a user, the program code is further executable to render the blue frame on a combination of the primary and secondary portions of the user interface display.

25. The computer program product of claim 19, wherein, responsive to an indication by a user, the program code is further executable to simultaneously render the blue frame on the primary portion of the user interface display and render the white frame on the secondary portion of the user interface display.

27. The computer program product of claim 19, wherein indicating the detection of the feature comprises displaying a graphic indicator overlaid on the rendering of the white frame at a location corresponding to the location of the detected feature on the associated blue frame.

29. The computer program product of claim 19, wherein rendering the blue frame separately from the white frame comprises alternately rendering the blue frames and white frames on a common portion of the display.

30. The computer program product of claim 19, wherein the program code is further executable to store the blue frame in association with the white frame.

32. The computer program product of claim 19, wherein the program code is further executable to receive a polarization difference imaging (PDI) image of the subject, detecting a PDI feature depicted in the PDI image that is not depicted in any of the blue frame and the white frame, and indicating the detection of the PDI feature.

22. (canceled)

26. (canceled)

28. (canceled)

31. (canceled)

33-62. -62. (canceled)