This paper reports an approach of computing depth maps from a monocular image sequence, under the assumption that the camera motion is known. The direct depth estimation method is combined with the optical flow based method to improve estimation accuracy. The optical flow on and near moving edges ar
Control of camera motions from the planning of image contours
โ Scribed by Carlo Colombo; Eckhard Kruse; Paolo Dario
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 852 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0921-8890
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โฆ Synopsis
A robotic system for camera positioning with respect to fixed planar objects is proposed, whose control is based on planning shape transfomaations of the objects' silhouette in the image. The control equations are linearized by means of an affine camera projection model, and even more simplified by maintaining fixation onto the objects during camera motions. No accurate camera calibration is required, and image contour-based visual analysis provides the system with a robust sensory feedback. The implementation with an eye-in-hand robotic setup is described and discussed. Applications are in the domains of purposive navigation and vision-based grasping.
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