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Enhanced contrast for object detection and characterization by optical imaging

A technology of objects, objects of interest, applied in the field of imaging systems, which can solve the problem that equipping objects is not always a convenience

Active Publication Date: 2017-05-03
ULTRAHAPTICS IP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, equipping objects is not always a convenient or desired option

Method used

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  • Enhanced contrast for object detection and characterization by optical imaging
  • Enhanced contrast for object detection and characterization by optical imaging
  • Enhanced contrast for object detection and characterization by optical imaging

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Embodiment Construction

[0033] first reference figure 1 , which illustrates a system 100 for capturing image data according to an embodiment of the present invention. System 100 includes a pair of cameras 102 , 104 coupled to image analysis system 106 . The cameras 102, 104 may be any type of camera, including cameras sensitive across the visible spectrum or more typically cameras with enhanced sensitivity to restricted wavelength bands such as infrared (IR) or ultraviolet bands; more generally, The term "camera" as used herein refers to any device (or combination of devices) capable of capturing an image of a subject and representing that image in the form of digital data. For example, in-wire sensors or cameras other than conventional devices that capture two-dimensional (2D) images may be utilized. The term "light" is used generally to refer to any electromagnetic radiation, which may or may not be in the visible spectrum, and which may be broadband (eg, white light) or narrowband (eg, a single...

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Abstract

With controlled lighting directed at the object of interest, enhanced contrast between the object of interest and the background surface visible in the image is provided. Taking advantage of the falloff of light intensity with distance, a light source (or multiple light sources), such as an infrared light source, can be placed near one or more cameras to shine light on a subject as the cameras capture an image. The captured image can be analyzed to distinguish object pixels from background pixels.

Description

[0001] Cross references to related applications [0002] This application claims priority and benefit to US Patent No. 61 / 724,068 filed November 8, 2012, the entire disclosure of which is incorporated herein by reference. Additionally, this application claims priority to U.S. Patent Application Nos. 13 / 414,485 (filed March 7, 2012) and 13 / 724,357 (filed December 21, 2012), and also claims U.S. Provisional Patent Application (2012 Priority and benefit of No. 61 / 724,091 (filed November 8, 2012) and 61 / 587,554 (filed January 17, 2012). The foregoing application is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates generally to imaging systems and in particular to three-dimensional (3D) object detection, tracking and characterization using optical imaging. Background technique [0004] Motion capture systems are used in a variety of contexts to obtain information about the configuration and motion of various objects, incl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06V10/143G06V10/145G06V10/28H04N23/75
CPCG06V40/28G06V40/107G06V10/145G06V10/143G06V10/28
Inventor D·霍尔兹杨骅
Owner ULTRAHAPTICS IP LTD