A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
Surface simplification using quadric error metrics
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
A Model of Saliency-Based Visual Attention for Rapid Scene Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Evaluation of visual balance for automated layout
Proceedings of the 9th international conference on Intelligent user interfaces
Automatic thumbnail cropping and its effectiveness
Proceedings of the 16th annual ACM symposium on User interface software and technology
Convex Optimization
Gaze-based interaction for semi-automatic photo cropping
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
MUM '05 Proceedings of the 4th international conference on Mobile and ubiquitous multimedia
Aesthetic Primitives of Images for Visualization
IV '07 Proceedings of the 11th International Conference Information Visualization
Seam carving for content-aware image resizing
ACM SIGGRAPH 2007 papers
Real-time line detection through an improved Hough transform voting scheme
Pattern Recognition
Improved seam carving for video retargeting
ACM SIGGRAPH 2008 papers
Optimized scale-and-stretch for image resizing
ACM SIGGRAPH Asia 2008 papers
Multi-operator media retargeting
ACM SIGGRAPH 2009 papers
Image retargeting using mesh parametrization
IEEE Transactions on Multimedia
ACM SIGGRAPH ASIA 2009 Courses
Nonhomogeneous scaling optimization for realtime image resizing
The Visual Computer: International Journal of Computer Graphics
A comparative study of image retargeting
ACM SIGGRAPH Asia 2010 papers
Using eye-tracking to assess different image retargeting methods
Proceedings of the ACM SIGGRAPH Symposium on Applied Perception in Graphics and Visualization
Global contrast based salient region detection
CVPR '11 Proceedings of the 2011 IEEE Conference on Computer Vision and Pattern Recognition
Defining computational aesthetics
Computational Aesthetics'05 Proceedings of the First Eurographics conference on Computational Aesthetics in Graphics, Visualization and Imaging
Composition principles for quality depiction and aesthetics
Computational Aesthetics'07 Proceedings of the Third Eurographics conference on Computational Aesthetics in Graphics, Visualization and Imaging
Realtime aesthetic image retargeting
Computational Aesthetics'10 Proceedings of the Sixth international conference on Computational Aesthetics in Graphics, Visualization and Imaging
Artistic composition for image creation
EGWR'01 Proceedings of the 12th Eurographics conference on Rendering
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We present a high-efficiency approach to optimally enhance image composition using a crop-and-warp-based algorithm. We have designed a piecewise quadratic aesthetic energy function with linear inequality constraints that measures the distance between original positions and the aesthetic target positions of visual elements, to assess the target image composition. The target image is cropped by a sub-window that can zoom and move within the original image window. The optimal cropped window position can be obtained by solving a piecewise quadratic program that attempts to minimize the energy function. The salient object and feature line locations in the cropped image are further optimally adjusted by adopting a triangular mesh-based warping technique, which also allows fitting the proposed approach for image retargeting. A quadratic optimization controls the mesh warping and can be achieved by solving a sparse linear system. We illustrate the effectiveness of our approach in several experimental results and compare them to previous approaches.