A polar representation of motion and implications for optical flow

Yair Adato, Todd Zickler, Ohad Ben-Shahar

نتاج البحث: فصل من :كتاب / تقرير / مؤتمرمنشور من مؤتمرمراجعة النظراء

ملخص

We explore a polar representation of optical flow in which each element of the brightness motion field is represented by its magnitude and orientation instead of its Cartesian projections. This seemingly small change in representation provides more direct access to the intrinsic structure of a flow field, and when used with existing variational inference procedures it provides a framework in which regularizers can be intuitively tailored for very different classes of motion. Our evaluations reveal that a flow estimation algorithm that is based on a polar representation can perform as well or better than the state-of-the-art when applied to traditional optical flow problems concerning camera or rigid scene motion, and at the same time, it facilitates both qualitative and quantitative improvements for non-traditional cases such as fluid flows and specular flows, whose structure is very different.

اللغة الأصليةإنجليزيّة أمريكيّة
عنوان منشور المضيف2011 IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2011
الصفحات1145-1152
عدد الصفحات8
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 1 يناير 2011

سلسلة المنشورات

الاسمProceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition

All Science Journal Classification (ASJC) codes

  • !!Software
  • !!Computer Vision and Pattern Recognition

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