An image warping approach to image sequence interpolation

Author

Monaco, Joseph W. ; Smith, Mark J T

Author_Institution

Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

1994

fDate

13-16 Nov 1994

Firstpage

338

Abstract

Describes a new method for image sequence interpolation. The approach uses a feature-based image warping algorithm to align linear image features in two or more key frames. We propose modifications to this feature-based warping algorithm which reduce artifacts created in the presence of large distortions. In addition, an algorithm for selecting and tracking the linear features required by the warping algorithm is presented. Combining feature-based image warping with a selection and tracking algorithm results in a novel interpolation scheme in which motion estimates are concentrated near object boundaries and other prominent edges. Results are shown for interpolation of a video teleconferencing sequence

Keywords

feature extraction; image sequences; interpolation; teleconferencing; tracking; video coding; artifacts reduction; feature extraction; feature-based image warping algorithm; image sequence interpolation; image warping; large distortions; linear features selection; linear features tracking; linear image features; motion estimates; object boundaries; tracking algorithm; video coding; video teleconferencing sequence; Diversity reception; Image converters; Image sequences; Interpolation; Motion control; Motion estimation; Pixel; Teleconferencing; Vectors; Video codecs;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference

Conference_Location

Austin, TX

Print_ISBN

0-8186-6952-7

Type

conf

DOI

10.1109/ICIP.1994.413331

Filename

413331