APPARATUS AND METHOD FOR SENSING IMAGE

• US 20130314319A1
• Filed: 12/04/2012
• Published: 11/28/2013
• Est. Priority Date: 05/22/2012
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: SUH, Jeong-Dae
• Application Number:
  US13/693,092
• Publication Number:
  US 20130314319A1
• Time in Patent Office: Days
• US Class Current: 345/158
• CPC Class Codes: G06F 2203/04109 FTIR in optical digitiser, i.e. touch detection by frustrating the total internal reflection within an optical waveguide due to changes of optical properties or deformation at the touch location
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386

Abstract

The present invention relates to an apparatus and method for sensing an image formed by a fluid that is wetted to a real paint brush, such as water. The image sensing apparatus includes an input unit configured to receive an image using a paint brush that is wet with a fluid, a light source unit configured to emit infrared light to the input unit for sensing the image, and a sensing unit configured to sense scattered light generated in response to the image received by the input unit using the wet paint brush and to image sensed results.

Claims

1. An image sensing apparatus, comprising:

an input unit configured to receive an image using a paint brush that is wet with a fluid;

a light source unit configured to emit infrared light to the input unit for sensing the image; and

a sensing unit configured to sense scattered light generated in response to the image received by the input unit using the wet paint brush and to image sensed results.

2. The image sensing apparatus of claim 1, wherein the scattered light is generated when total reflection is broken at a boundary surface corresponding to the wet paint brush'"'"'s touch with the input unit.

3. The image sensing apparatus of claim 1, wherein the input unit corresponds to an input plate in which the infrared light corresponding to an output of the light source unit is kept by total reflection, the input plate act as a waveguide when there is no input image using the paint brush.

4. The image sensing apparatus of claim 3, wherein the input plate corresponds to a transparent plate made of acryl.

5. The image sensing apparatus of claim 3, wherein the input plate has a thickness between 0.6 mm and 1 mm.

6. The image sensing apparatus of claim 1, wherein the sensing unit senses the scattered light using a camera and consecutively images the sensed results.

7. The image sensing apparatus of claim 6, wherein the camera is vertically disposed under the input unit.

8. The image sensing apparatus of claim 1, wherein the light source unit generates total reflection within the input unit by emitting the infrared light to the input unit using one or more infrared Light Emitting Diodes (LEDs).

9. An image sensing method, comprising:

receiving, by an input plate, an image using a paint brush that is wet with a fluid;

emitting infrared light to the input plate using a light source for sensing the image; and

sensing scattered light generated in response to the image in the input plate and imaging sensed results.

10. The image sensing method of claim 9, wherein the scattered light is generated when total reflection is broken at a boundary surface corresponding to the wet paint brush'"'"'s touch with the input unit.

11. The image sensing method of claim 9, wherein the input plate corresponds to a transparent plate made of acryl.

12. The image sensing method of claim 9, wherein the sensing scattered light generated in response to the image in the input plate is performed using a camera.

13. The image sensing method of claim 12, wherein the camera is vertically disposed under the input plate.