Invention Grant
- Patent Title: Shape and dichromatic BRDF estimation using camera motion
-
Application No.: US14511649Application Date: 2014-10-10
-
Publication No.: US09813690B2Publication Date: 2017-11-07
- Inventor: Manmohan Chandaker
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agent Joseph Kolodka
- Main IPC: H04N13/02
- IPC: H04N13/02 ; G01B11/24 ; G06T15/50 ; G06T7/579

Abstract:
A method for shape and material recovery of an object observed under a moving camera by detecting a change in image intensity induced by motion to corresponding variation in surface geometry and dichromatic reflectance; receiving a sequence of three camera motions to yield a linear system that decouples shape and bidirectional reflectance distribution functions (BRDFs) terms; applying linearities in differential stereo relations to recover shape from camera motion cues, with unknown lighting and dichromatic BRDFs; and recovering unknown shape and reflectance of the object with dichromatic BRDF, using camera motion cues.
Public/Granted literature
- US20150256810A1 Shape and Dichromatic BRDF Estimation Using Camera Motion Public/Granted day:2015-09-10
Information query