کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
526017 869052 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
3D Human model adaptation by frame selection and shape–texture optimization
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
3D Human model adaptation by frame selection and shape–texture optimization
چکیده انگلیسی

We present a novel approach for 3D human body shape model adaptation to a sequence of multi-view images, given an initial shape model and initial pose sequence. In a first step, the most informative frames are determined by optimization of an objective function that maximizes a shape–texture likelihood function and a pose diversity criterion (i.e. the model surface area that lies close to the occluding contours), in the selected frames. Thereafter, a batch-mode optimization is performed of the underlying shape- and pose-parameters, by means of an objective function that includes both contour and texture cues over the selected multi-view frames.Using above approach, we implement automatic pose and shape estimation using a three-step procedure: first, we recover initial poses over a sequence using an initial (generic) body model. Both model and poses then serve as input to the above mentioned adaptation process. Finally, a more accurate pose recovery is obtained by means of the adapted model.We demonstrate the effectiveness of our frame selection, model adaptation and integrated pose and shape recovery procedure in experiments using both challenging outdoor data and the HumanEva data set.


► Novel approach for 3D human shape and pose adaptation to multi-view images.
► Automatic frame selection method to select suitable frames for model adaptation.
► Efficient optimization using differentiable shape–texture objective function.
► We demonstrate effectiveness of integrated pose and shape recovery on complex data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Vision and Image Understanding - Volume 115, Issue 11, November 2011, Pages 1559–1570
نویسندگان
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