PROJECTION PROCESSOR AND ASSOCIATED METHOD

• US 20160165197A1
• Filed: 05/27/2015
• Published: 06/09/2016
• Est. Priority Date: 05/27/2014
• Status: Abandoned Application

• Current Assignee: MediaTek, Inc.
• Original Assignee: MediaTek, Inc.
• Inventors: Liu, Tsu-Ming, Chang, Chih-Kai, Ju, Chi-cheng, Wang, Chih-Ming
• Application Number:
  US14/905,290
• Publication Number:
  US 20160165197A1
• Time in Patent Office: Days
• CPC Class Codes: G02B 2027/011 comprising device for correcting geometrical aberrations, distortion
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G03B 21/145 Housing details, e.g. position adjustments thereof
• CPC Class Codes: G03B 21/28 Reflectors in projection beam in illumination beam G03B21/2066
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/167 Audio in a user interface, e.g. using voice commands for navigating, audio feedback
• CPC Class Codes: H04N 13/161 Encoding, multiplexing or demultiplexing different image signal components for multi-view video sequence encoding H04N19/597
• CPC Class Codes: H04N 13/194 Transmission of image signals
• CPC Class Codes: H04N 13/243 using three or more 2D image sensors
• CPC Class Codes: H04N 13/282 for generating image signals corresponding to three or more geometrical viewpoints, e.g. multi-view systems
• CPC Class Codes: H04N 13/349 Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for viewing without the aid of special glasses using fly-eye lenses H04N13/307
• CPC Class Codes: H04N 13/363 using image projection screens volumetric display H04N13/388
• CPC Class Codes: H04N 9/3141 Constructional details thereof details not peculiar to the presence of an electronic spatial light modulator G03B21/14
• CPC Class Codes: H04N 9/3155 for controlling the light source light source control per se H05B35/00 – H05B47/00; control of an illumination source for displays in general G09G3/3406
• CPC Class Codes: H04N 9/3173 wherein the projection device is specially adapted for enhanced portability
• CPC Class Codes: H04N 9/3179 Video signal processing therefor
• CPC Class Codes: H04N 9/3185 Geometric adjustment, e.g. keystone or convergence optical or mechanical adjustment of convergence H04N9/317; using scanning means H04N3/22; optical or mechanical adjustments of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/14
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

A projection processor includes a receiving circuit and an image processing circuit. The receiving circuit receives an input image. The image processing circuit performs at least one predetermined image processing operation upon the input image to generate an output image, wherein a projection source is generated according to the output image. The projection source is displayed or projected by a projection source component of an electronic device, such that a first cover of a projection display component partially reflects the projection source.

Claims

1. A projection processor, comprising:

a receiving circuit, arranged to receive an input image; and

an image processing circuit, arranged to perform at least one predetermined image processing operation upon the input image to generate an output image, wherein a projection source is generated according to the output image;

wherein the projection source is displayed or projected by a projection source component of an electronic device, such that a first cover of a projection display component partially reflects the projection source.

2. The projection processor of claim 1, wherein the first cover comprises:

at least one non-opaque plate, arranged to partially reflects the projection source, such that a projected image is shown on or behind the at least one non-opaque plate.

3. The projection processor of claim 1, wherein the image processing circuit comprises an image flip engine, and the predetermined image processing operation comprises an image flip operation controlled by the image flip engine.

4. The projection processor of claim 3, wherein the image flip engine performs the image flip operation to ensure that an orientation of the projected image matches an orientation of the input image or the projected image is shown on or behind the first cover with a correct orientation.

5. The projection processor of claim 3, wherein the image flip engine performs the image flip operation when an orientation of the projected image is not identical with the input image or the projected image is shown on or behind the first cover with an incorrect orientation.

6. The projection processor of claim 1, wherein the image processing circuit comprises an image distortion correction engine, and the predetermined image processing operation comprises an image distortion correction operation controlled by the image distortion correction engine.

7. The projection processor of claim 6, wherein the image distortion correction engine performs the image distortion correction operation to correct an appearance of the projection source when only a portion of the projection source is projected through a lens.

8. The projection processor of claim 6, wherein the image distortion correction engine performs the image distortion correction operation when the optical lens is not parallel with the electronic device.

9. The projection processor of claim 1, wherein the image processing circuit comprises an image segmentation engine, and the predetermined image processing operation comprises an image segmentation operation controlled by the image segmentation engine.

10. The projection processor of claim 9, wherein the image segmentation engine separates the projection source from a background of the projection source and fills the background with a plain color.

11. The projection processor of claim 9, wherein the image segmentation engine performs the image segmentation operation when a background corresponding to the projection source is not suitable for observing.

12. The projection processor of claim 1, wherein the image processing circuit comprises an image enhancement engine, and the predetermined image processing operation comprises an image enhancement operation controlled by the image enhancement engine.

13. The projection processor of claim 12, wherein the image enhancement engine performs the image enhancement operation when brightness of the projection source is lower than a first threshold or a difference between brightness of background and brightness of the projection source is lower than a second threshold value.

14. A projection method employed by a projection processor, comprising:

receiving an input image; and

performing at least one predetermined image processing operation upon the input image to generate an output image, wherein a projection source is generated according to the output image;

wherein the projection source is displayed or projected by a projection source component of an electronic device, such that a first cover of a projection display component partially reflects the projection source.

15. The projection method of claim 14, wherein the first cover comprises at least one non-opaque plate arranged to partially reflects the projection source, such that a projected image is shown on or behind the at least one non-opaque plate.

16. The projection method of claim 14, wherein the predetermined image processing operation comprises an image flip operation.

17. The projection method of claim 16, wherein the image flip operation comprises:

flipping the input image to ensure that an orientation of the projected image matches an orientation of the input image or the projected image is shown on or behind the first cover with a correct orientation.

18. The projection method of claim 16, wherein the image flip operation is performed when an orientation of the projected image is not identical with the input image or the projected image is shown on or behind the first cover with an incorrect orientation.

19. The projection method of claim 14, wherein the predetermined image processing operation comprises an image distortion correction operation.

20. The projection method of claim 19, wherein the image distortion correction operation is performed to correct an appearance of the projection source when only a portion of the projection source is projected through a lens.

21. The projection method of claim 19, wherein the image distortion correction operation is performed when the optical lens is not parallel with the electronic device.

22. The projection method of claim 14, wherein the predetermined image processing operation comprises an image segmentation operation.

23. The projection method of claim 22, wherein the image segmentation operation comprising:

separating the projection source from a background the projection source and fills the background with a plain color.

24. The projection method of claim 22, wherein the image segmentation operation is performed when a background corresponding to the projection source is not suitable for observing.

25. The projection method of claim 14, wherein the predetermined image processing operation comprises an image enhancement operation.

26. The projection method of claim 25, wherein the image enhancement operation is performed when brightness of the projection source is lower than a first threshold or a difference between brightness of background and brightness of the projection source is lower than a second threshold value.