Invention Application
US20120320157A1 COMBINED LIGHTING, PROJECTION, AND IMAGE CAPTURE WITHOUT VIDEO FEEDBACK
有权
联合照明,投影和图像采集不包含视频信息反馈
- Patent Title: COMBINED LIGHTING, PROJECTION, AND IMAGE CAPTURE WITHOUT VIDEO FEEDBACK
- Patent Title (中): 联合照明,投影和图像采集不包含视频信息反馈
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Application No.: US13160080Application Date: 2011-06-14
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Publication No.: US20120320157A1Publication Date: 2012-12-20
- Inventor: Sasa Junuzovic , William Thomas Blank , Steven Bathiche , Anoop Gupta , Andrew D. Wilson
- Applicant: Sasa Junuzovic , William Thomas Blank , Steven Bathiche , Anoop Gupta , Andrew D. Wilson
- Applicant Address: US WA Redmond
- Assignee: MICROSOFT CORPORATION
- Current Assignee: MICROSOFT CORPORATION
- Current Assignee Address: US WA Redmond
- Main IPC: H04N5/225
- IPC: H04N5/225 ; H04N13/02

Abstract:
A “Concurrent Projector-Camera” uses an image projection device in combination with one or more cameras to enable various techniques that provide visually flicker-free projection of images or video, while real-time image or video capture is occurring in that same space. The Concurrent Projector-Camera provides this projection in a manner that eliminates video feedback into the real-time image or video capture. More specifically, the Concurrent Projector-Camera dynamically synchronizes a combination of projector lighting (or light-control points) on-state temporal compression in combination with on-state temporal shifting during each image frame projection to open a “capture time slot” for image capture during which no image is being projected. This capture time slot represents a tradeoff between image capture time and decreased brightness of the projected image. Examples of image projection devices include LED-LCD based projection devices, DLP-based projection devices using LED or laser illumination in combination with micromirror arrays, etc.
Public/Granted literature
- US08928735B2 Combined lighting, projection, and image capture without video feedback Public/Granted day:2015-01-06
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