High-Lewis number premixed flame instabilities (2009)
Lean premixtures of high-molecular weight practical fuels typically have an associated Lewis number (Le) in excess of one and are susceptible to diffusive-thermal instabilities depending on the heat...
Robust Principal Component Analysis: Exact Recovery of Corrupted Low-Rank Matrices (2009)
Wright, John, Ganesh, Arvind, Rao, Shankar, Ma, Yi
Principal component analysis is a fundamental operation in computational data analysis, with myriad applications ranging from web search to bioinformatics to computer vision and image analysis....
Large-Baseline Matching and Reconstruction from Symmetry Cells* (2008)
Kun Huang, Allen Y. Yang, Wei Hong, Yi Ma
Abstroel-In this paper, we study how the presence ofsgmmetry in man-made environments may signi6cautly facilitate the task of automatlc matching features and recovering 3D camera pose and scene...
Abstract. The necessary and sufficient conditions for being able to estimate scene structure, motion and camera calibration from a sequence of images are very rarely satisfied in practice. What...
Shankar R. Rao, Allen Y. Yang, Andrew W. Wagner, Yi Ma
In this paper, we investigate the mathematical problem underlying segmentation of hybrid motions: Given a series of tracked feature correspondences between two (perspective) images, we seek to...
Hilbert functions and applications to the estimation of subspace arrangements (2008)
Allen Y. Yang, Shankar Rao, Andrew Wagner, Yi Ma
This paper develops a new mathematical framework for studying the subspace-segmentation problem. We examine some important algebraic properties of subspace arrangements that are closely related to...
Address-Branch Correlation: A Novel Locality for Long-Latency Hard-to-Predict Branches (2008)
Hongliang Gao, Yi Ma, Martin Dimitrov, Huiyang Zhou
Hard-to-predict branches depending on longlatency cache-misses have been recognized as a major performance obstacle for modern microprocessors. With the widening speed gap between memory and...
Yi Ma, Hongliang Gao, Huiyang Zhou
Abstract—High-accuracy branch prediction is crucial for high-performance processors. Inspired by the work on indexing functions to eliminate conflict-misses in memory hierarchy, this paper explores...
Abstract. The aim of this paper is to explore a linear geometric algorithm for recovering the three dimensional motion of a moving camera from image velocities. Generic similarities and differences...
Dense Error Correction via L1-Minimization (2008)
This paper studies the problem of recovering a non-negative sparse signal $\x \in \Re^n$ from highly corrupted linear measurements $\y = A\x + \e \in \Re^m$, where $\e$ is an unknown error vector...
Hybrid Data Fusion and Cooperative Schemes for Wireless Positioning (2008)
Sand, Stephan, Mensing, Christian, Ma, Yi, Tafazolli, Rahim, Yin, Xuefeng, Figueiras, João, ...
Abstract—The Wireless Hybrid Enhanced Mobile Radio Estimators (WHERE) consortium researches radio positioning techniques to improve various aspects of communications systems. In order to provide...
Robust Statistical Estimation and Segmentation of Multiple Subspaces (2008)
Allen Y. Yang, Shankar R. Rao, Yi Ma
We study the problem of estimating a mixed geometric model of multiple subspaces in the presence of a significant amount of outliers. The estimation of multiple subspaces is an important problem in...
Ma, Yi, Hao, Qing, Poudel, Bed, Lan, Yucheng, Yu, Bo, Wang, Dezhi, ...
By ball milling alloyed bulk crystalline ingots into nanopowders and hot pressing them, we had demonstrated high figure-of-merit in nanostructured bulk bismuth antimony telluride. In this study, we...
Large-Baseline Matching and Reconstruction from Symmetry Cells (2008)
Kun Huang, Allen Y. Yang, Wei Hong, Yi Ma
Abstract — In this paper, we study how the presence of symmetry in man-made environments may significantly facilitate the task of automatic matching features and recovering 3-D camera pose and...
Abstract. We present a closed-form (linear-algebraic) solution to the identification of hybrid deterministic ARX systems and characterize conditions on the input and switching sequences that...
Multiview Geometry Revisited: A Differential Geometric Approach (2008)
Jana Kosecka, Yi Ma, Shankar Sastry
Multiview geometry has been traditionally developed in the framework of projective geometry, which is technically rather algebraic. In this paper, we show an alternative approach which uses notation...
Slewinski, Thomas L., Ma, Yi, Baker, R. Frank, Huang, Mingshu, Meeley, Robert, Braun, David M.
In regions of their leaves, tdy1-R mutants hyperaccumulate starch. We propose 2 alternative hypotheses to account for the data, that Tdy1 functions in starch catabolism or that Tdy1 promotes sucrose...
Euclidean Structure and Motion Recovery: Multi-Frame Constraints, Invariants and Algorithms (2007)
Yi Ma, Jana Kosecká, Shankar Sastry
In this paper we study the problem of Euclidean structure and motion recovery from m-frames in the case of calibrated cameras. We formulate the problem in the "joint image space" and first...
A Differential Geometric Approach to Camera Self-calibration (2007)
Yi Ma, Jana Kosecka, Shankar Sastry
Camera self-calibration has been traditionally studied in the projective geometry framework. This paper provides an alternative approach using mostly linear algebra and some differential geometry. A...
Vision Guided Landing of an Unmanned Aerial Vehicle (2007)
Omid Shakernia, Yi Ma, Shankar Sastry
In this paper, we investigate the problem of using computer vision as a sensor to control the landing of an unmanned aerial vehicle (UAV). The vision problem we address is a differential version of...
Vision Guided Landing of an Unmanned Aerial Vehicle (2007)
Omid Shakernia, Yi Ma, Shankar Sastry
In this paper, we investigate the problem of using computer vision as a sensor to control the landing of an unmanned aerial vehicle (UAV). The vision problem we address is a differential version of...
ORTHOGONAL MULTICARRIER BANDWIDTH MODULATION SCHEME FOR WIRELESS COMMUNICATIONS (2007)
Yi Ma, Yi Huang, Waleed Al-nuaimy, Yiyuan Xiong
Abstract- A new orthogonal multicarrier bandwidth modulation (OMBM) scheme is proposed in this paper. The distinct feature of this scheme is that the frequency domain data is used to decide the...
Rene Vidal, Yi Ma, Shawn Hsu, Shankar Sastry
In this paper, we study the structure from motion problem as a constrained nonlinear least squares problem which minimizes the so called reprojection error subject to all constraints among multiple...
Alessandro Bissacco, Alessandro Chiuso, Yi Ma, Stefano Soatto
We pose the problem of recognizing different types of human gait in the space of dynamical systems where each gait is represented. Established techniques are employed to track a kinematic model of a...
Camera Self-Calibration: Renormalization and Degeneracy Resolution for Kruppa's Equations (2007)
In this paper, we study general questions about the solvability of the Kruppa's equations and show that, in several special cases, the Kruppa's equations can be renormalized and become...
A Dierential Geometric Approach to Multiple View Geometry in Spaces of Constant Curvature (2007)
Based upon an axiomatic formulation of vision system in a general Riemannian manifold, this paper provides a unied study of multiple view geometry for three dimensional spaces of constant curvature,...
Yi Ma, Stefano Soatto, Shankar Sastry
Computer Vision. The necessary and sucient conditions for being able to estimate scene structure, motion and camera calibration from a sequence of images are very rarely satised in practice. What...
Classification of Rank Conditions for Multiple Views of Dynamical Scenes (2007)
Yi Ma Kun, Yi Ma, Kun Huang, Yang Yang
In this paper we demonstrate the possibility of using rank conditions as a guiding principle to unify the study of multiple view geometry, for either static or dynamical scenes. A way of classifying...
Generalized Principal Component Analysis (GPCA) (2007)
Ren Vidal Yi, Yi Ma, Shankar Sastry
We propose an algebraic geometric approach to the problem of estimating a mixture of linear subspaces from sample data points, the so-called Generalized Principal Component Analysis (GPCA) problem....
A Sparse Representation Perspective (2007)
Allan Y. Yang, John Wright, Yi Ma, S. Shankar Sastry, All Rights Reserved
personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the...
Unsupervised Segmentation of Natural Images via Lossy Data Compression (2007)
Allen Y. Yang, John Wright, Shankar Sastry, Yi Ma
In this paper, we cast natural-image segmentation as a problem of clustering texture features as multivariate mixed data. We model the distribution of the texture features using a mixture of Gaussian...
Optimizing dual-core execution for power efficiency and transientfault recovery (2007)
Yi Ma, Hongliang Gao, Martin Dimitrov, Huiyang Zhou, Ieee Computer Society
Abstract—Dual-core execution (DCE) is an execution paradigm proposed to utilize chip multiprocessors to improve the performance of single-threaded applications. Previous research has shown that DCE...
Motivation Problem Formulation ℓ 1-Minimization Classification Experiments Future Directions (2007)
Allen Y. Yang, Shankar Sastry, Yi Ma, John Wright, On-demand Surveillance, On-demand Surveillance
Integrated microphone, infrared, motion sensors. IEEE 802.15.4 protocal, 250 kbps. Figure: Next generation Berkeley wireless camera mote.
Segmentation of multivariate mixed data via lossy coding and compression (2007)
Yi Ma, Senior Member, Harm Derksen, Wei Hong, John Wright, Student Member
Abstract—In this paper, based on ideas from lossy data coding and compression, we present a simple but effective technique for segmenting multivariate mixed data that are drawn from a mixture of...
Feature selection in face recognition: A sparse representation perspective (2007)
Allen Y. Yang, John Wright, Student Member, Yi Ma, Senior Member, S. Shankar Sastry
In this paper, we examine the role of feature selection in face recognition from the perspective of sparse representation. We cast the recognition problem as finding a sparse representation of the...
Classification via minimum incremental coding length (MICL (2007)
John Wright, Yi Ma, Yangyu Tao, Zhouchen Lin, Heung-yeung Shum
We present a simple new criterion for classification, based on principles from lossy data compression. The criterion assigns a test sample to the class that uses the minimum number of additional bits...
Abstract. In this paper, we present an analytic solution to the problem of estimating an unknown number of 2-D and 3-D motion models from two-view point correspondences or optical flow. The key to...
Segmentation of Natural Images via Lossy Data Compression (2006)
Allen Y. Yang, John Wright, Shankar Sastry, Yi Ma
In this paper, we cast natural-image segmentation as a problem of clustering texure features as multivariate mixed data. We model the distribution of the texture features using a mixture of Gaussian...
A multi-scale hybrid linear model for lossy image representation (2005)
Wei Hong, John Wright, Kun Huang, Yi Ma
This paper introduces a simple and efficient representation for natural images. We partition an image into blocks and treat the blocks as vectors in a high-dimensional space. We then fit a piece-wise...
Segmentation of a piece-wise planar scene from perspective images (2005)
Allen Y. Yang, Shankar Rao, Andrew Wagner, Yi Ma
We study and compare two novel embedding methods for segmenting feature points of piece-wise planar structures from two (uncalibrated) perspective images. We show that a set of different homographies...
René Vidal, Yi Ma, Jacopo Piazzi
We consider the problem of clustering data lying on multiple subspaces of unknown and possibly different dimensions. We show that one can represent the subspaces with a set of polynomials whose...
A unified algebraic approach to 2-D and 3-D motion segmentation (2004)
Abstract. We present an analytic solution to the problem of estimating multiple 2-D and 3-D motion models from two-view correspondences or optical flow. The key to our approach is to view the...
In this paper, we propose a robust model selection criterion for mixtures of subspaces called minimum effective dimension (MED). Previous information-theoretic model selection criteria typically...
Reconstruction of 3-D symmetric curves from perspective images without discrete features (2004)
Abstract. The shapes of many natural and man-made objects have curved contours. The images of such contours usually do not have sufficient distinctive features to apply conventional feature-based...
Rank conditions of the multiple view matrix (2004)
Yi Ma, Kun Huang, Shankar Sastry
Abstract. Geometric relationships governing multiple images of points and lines and associated algorithms have been studied to a large extent separately in multiple view geometry. The previous...
Two-view multibody structure from motion (2004)
René Vidal, Yi Ma, Stefano Soatto, Shankar Sastry
Abstract. We present a geometric approach to 3-D motion estimation and segmentation of dynamic scenes containing multiple rigidly moving objects seen in two perspective views. We cast the problem in...
computer vision as a sensor in their feedback loops. 3. We need to study resulting algorithms based on not only pure geometric models but also statistical models. Since actual images are always...
Two-view multibody structure from motion (2004)
René Vidal, Yi Ma, Stefano Soatto
Abstract. We present an algebraic geometric approach to 3-D motion estimation and segmentation of multiple rigid-body motions from noise-free point correspondences in two perspective views. Our...
Two-view multibody structure from motion (2004)
René Vidal, Yi Ma, Stefano Soatto
Abstract. We present an algebraic geometric approach to 3-D motion estimation and segmentation of multiple rigid-body motions from noise-free point correspondences in two perspective views. Our...
A unified algebraic approach to 2-D and 3-D motion segmentation (2004)
Abstract. We present an analytic solution to the problem of estimating multiple 2-D and 3-D motion models from two-view correspondences or optical flow. The key to our approach is to view the...
Sparse representation of images with hybrid linear models (2004)
Kun Huang, Allen Y. Yang, Yi Ma
We propose a mixture of multiple linear models, also known as hybrid linear model, for a sparse representation of an image. This is a generalization of the conventional Karhunen-Loeve transform (KLT)...
A differential geometric approach to multiple view geometry in spaces of constant curvature (2004)
Abstract. Based upon an axiomatic formulation of vision system in a general Riemannian manifold, this paper provides a unified framework for the study of multiple view geometry in three dimensional...
Two-view multibody structure from motion (2004)
René Vidal, Yi Ma, Stefano Soatto, Shankar Sastry
Abstract. We present an algebraic geometric approach to 3-D motion estimation and segmentation of multiple rigid-body motions from noise-free point correspondences in two perspective views. Our...
An algebraic geometric approach to the identification of a class of linear hybrid systems (2003)
René Vidal, Stefano Soatto, Yi Ma, Shankar Sastry
We propose an algebraic geometric solution to the identification of a class of linear hybrid systems. We show that the identification of the model parameters can be decoupled from the inference of...
Generalized principal component analysis (GPCA (2003)
René Vidal, Yi Ma, Shankar Sastry
We propose an algebraic geometric approach to the problem of estimating a mixture of linear subspaces from sample data points, the so-called Generalized Principal Component Analysis (GPCA) problem....
Allen Y. Yang, Wei Hong, Yi Ma
In this paper, we provide a principled and unified expla-nation how knowledge in global 3-D structural invariants, typically captured by a group action on a symmetric struc-ture, can significantly...
Symmetry-based photo editing (2003)
Based on high-level geometric knowledge, especially symmetry, imposed upon objects in images, we demonstrate in this paper how to edit images in terms of correct 3-D shape and relationships of the...
Generalized principal component analysis (GPCA (2003)
René Vidal, Yi Ma, Shankar Sastry
Abstract — This paper presents an algebro-geometric solution to the problem of segmenting an unknown number of subspaces of unknown and varying dimensions from sample data points. We represent the...
DOI: 10.1007/s11263-005-4839-7 Two-View Multibody Structure from Motion ∗ (2002)
René Vidal, Yi Ma, Stefano Soatto
Abstract. We present an algebraic geometric approach to 3-D motion estimation and segmentation of multiple rigid-body motions from noise-free point correspondences in two perspective views. Our...
Multiple view motion estimation and control for landing an unmanned aerial vehicle (2002)
Omid Shakernia, René Vidal, Courtney S. Sharp, Yi Ma, Shankar Sastry
We present a multiple view algorithm for vision based landing of an unmanned aerial vehicle. Our algorithm is based on our recent results in multiple view geometry which exploit the rank deficiency...
Generalized Rank Conditions in Multiple View Geometry with Applications to Dynamical Scenes (2002)
Kun Huang, Robert Fossum, Yi Ma, To R
In this paper, the geometry of a general class of projections from R (k < n) is examined, as a generalization of classic multiple view geometry in computer vision. It is shown that geometric...
Rank Deficiency Condition of the Multiple View Matrix for Mixed Point and Line Features (2002)
Yi Ma, Jana Kosecka, Kun Huang
Geometric relationships governing multiple images of points and lines and associated algorithms have been studied to a large extent separately in multiple view geometry. In this paper we present a...
Multiple View Motion Estimation and Control for Landing an Unmanned Aerial Vehicle (2002)
Omid Shakernia, Courtney S. Sharp, Rene Vidal, David H. Shim, Yi Ma, Shankar Sastry
We present a multiple view algorithm for vision based landing of an unmanned aerial vehicle. Our algorithm is based on our recent results in multiple view geometry which exploit the rank de ciency of...
Optimization criteria and geometric algorithms for motion and structure estimation (2001)
Abstract. Prevailing efforts to study the standard formulation of motion and structure recovery have recently been focused on issues of sensitivity and robustness of existing techniques. While many...
Nonlinear control of a helicopter based unmanned aerial vehicle model (2001)
T. John Koo, Yi Ma, S. Shankar Sastry
Abstract. In this paper, output tracking control of a helicopter based unmanned aerial vehicle model is investigated. First, based on Newton-Euler equations, a dynamical model is derived by...
Optimization criteria and geometric algorithms for motion and structure estimation (2001)
The prevailing efforts to study the standard formulation of motion and structure recovery have been recently focused on issues of sensitivity and and robustness of existing techniques. While many...
Optimal Motion Estimation from Multiple Images by Normalized Epipolar Constraint (2001)
Yi Ma, René Vidal, Shawn Hsu, Shankar Sastry
In this paper, we study the structure from motion problem as a constrained nonlinear least squares problem which minimizes the so called reprojection error subject to all constraints among multiple...
Abstract. Geometric relationships governing multiple images of points and lines and associated algorithms have been studied to a large extent separately in multiple-view geometry. The previous...
Lectures on symplectic geometry (2001)
Chris Woodward, David Metzler, Eckhard Meinrenken, Elisa Prato, Jonathan Weitsman, ...
These notes approximately transcribe a 15-week course on symplectic geometry I
Average of Curves : analysis, algorithms and simulations / (2000)
Thesis (M.A.)--University of California, Berkeley, 2000.
NSFOCUS Security Advisory. Sun Solaris Xsun \-co" heap over (2000)
Yi Ma, Rene Vidal, Jana Kosecka, Shankar Sastry
In this paper, we study general questions about the solvability of the Kruppa equations and show that, in several special cases, the Kruppa equations can be renormalized and become linear. In...
Linear differential algorithm for motion recovery: A geometric approach (2000)
Yi Ma, Jana Kosecka, Shankar Sastry
The aim of this paper is to explore a linear geometric algorithm for recovering the three dimensional motion of a moving camera from image velocities. Generic similarities and differences between the...
NSFOCUS Security Advisory. Sun Solaris Xsun \-co" heap over (2000)
In this paper, we study general questions about the solvability of the Kruppa equations and show that, in several special cases, the Kruppa equations can be renormalized and become linear. In...
Linear differential algorithm for motion recovery: A geometric approach (2000)
The aim of this paper is to explore a linear geometric algorithm for recovering the three dimensional motion of a moving camera from image velocities. Generic similarities and differences between the...
Kruppa Equation Revisited: its Renormalization and Degeneracy (2000)
Yi Ma, René Vidal, Jana Kosecká, Shankar Sastry
In this paper, we study general questions about the solvability of the Kruppa equations and show that, in several special cases, the Kruppa equations can be renormalized and become linear. In...
Euclidean Reconstruction and Reprojection up to Subgroups (1999)
Yi Ma, Stefano Soatto, Shankar Sastry
The necessary and sufficient conditions for being able to estimate scene structure, motion and camera calibration from a sequence of images are very rarely satisfied in practice. What exactly can be...
A Lie Theoretic Approach To Structure And Motion In Computer Vision (1999)
Yi Ma, Omid Shakernia, Jana Kosecká, Shankar Sastry
: There has been an increasing interest in applying computer vision in robot control such as vision guided navigation, manipulation, and object recognition. A combination of a robot's rigid body...
Vision guided navigation for a nonholonomic mobile robot (1999)
Visual servoing, i.e. the use of the vision sensor in feedback control, has been of increasing interest. A fair amount of work has been done in applications in autonomous driving, manipulation,...
Euclidean Reconstruction and Reprojection Up to Subgroups (1999)
Yi Ma, Stefano Soatto, Jana Kosecka, Shankar Sastry
The necessary and sufficient conditions for being able to estimate scene structure, motion and camera calibration from a sequence of images are very rarely satisfied in practice. What exactly can be...
Euclidean Reconstruction and Reprojection Up to Subgroups (1999)
Yi Ma Stefano, Yi Ma, Stefano Soatto, Jana Kosecka, Shankar Sastry
The necessary and sufficient conditionsfor being able to estimate scene structure, motionand camera calibration from a sequence of images are very rarely satisfied in practice. What exactly can be...
Camera Self-Calibration: Geometry and Algorithms (1999)
Yi Ma, René Vidal, Jana Kosecká, Shankar Sastry
In this paper, a geometric theory of camera self-calibration is developed. The problem of camera self-calibration is shown to be equivalent to the problem of recovering an unknown (Riemannian) metric...
Landing an Unmanned Air Vehicle: Vision Based Motion Estimation and Nonlinear Control (1999)
Omid Shakernia, Yi Ma, T. John Koo, T. John, Shankar Sastry
In this paper, we use computer vision as a feedback sensor in a control loop for landing an unmanned air vehicle (UAV) on a landing pad. The vision problem we address here is then a special case of...
Euclidean Reconstruction and Reprojection Up to Subgroups (1999)
Yi Ma, Stefano Soatto, Jana Kosecká, Shankar Sastry
The necessary and sufficient conditions for being able to estimate scene structure, motion and camera calibration from a sequence of images are very rarely satisfied in practice. What exactly, then,...
Landing an Unmanned Air Vehicle: (1999)
Vision Based Motion, Omid Shakernia, Yi Ma, T. John, Koo Shankar Sastry
In this paper, we use computer vision as a feedback sensor in a control loop for landing an unmanned air vehicle (UAV) on a landing pad. The vision problem we address here is then a special case of...
Euclidean Reconstruction and Reprojection up to Subgroups (1999)
Yi Ma, Stefano Soatto, Shankar Sastry
The necessary and sufficient conditionsfor being able to estimate scene structure, motion and camera calibration from a sequence of images are very rarely satisfied in practice. What exactly can be...
Optimization Criteria, Sensitivity and Robustness of Motion and Structure Estimation (1999)
The prevailing efforts to study the standard formulation of motion and structure recovery have been recently focused on issues of sensitivity and and robustness of existing techniques. While many...
Optimal Motion From Image Sequences: A Riemannian Viewpoint (1998)
Yi Ma, Jana Kosecká, Shankar Sastry
Motion recovery from image correspondences is typically a problem of optimizing an objective function associated with the epipolar (or Longuet-Higgins) constraint. This objective function is defined...
Vision Guided Navigation for A Nonholonomic Mobile Robot (1998)
Yi Ma, Jana Kosecká, Shankar Sastry
Visual servoing, i.e. the use of the vision sensor in feedback control, has gained recently increased attention from researchers both in vision and control community. A fair amount of work has been...
Optimal Motion From Image Sequences: A Riemannian Viewpoint (1998)
Yi Ma, Jana Kosecka, Shankar Sastry
Motion recovery from image correspondences is typically a problem of optimizing an objective function associated with the epipolar (or Longuet-Higgins) constraint. This objective function is defined...
Euclidean Structure and Motion From Image Sequences (1998)
Yi Ma, Jana Kosecká, Shankar Sastry
In this report we address a problem of Euclidean structure and motion recovery from image sequences and propose a linear method for determining the Euclidean motion and structure information up to a...
Computer Vision. Euclidean Reconstruction and Reprojection Up to Subgroups (1998)
Yi Ma, Stefano Soatto, Shankar Sastry
The necessary and sufficient conditions for being able to estimate scene structure, motion and camera calibration from a sequence of images are very rarely satisfied in practice. What exactly can be...
Vision Theory in Spaces of Constant Curvature (1998)
Yi Ma Shankar, Yi Ma, Shankar Sastry
In this paper, vision theory for Euclidean, spherical and hyperbolic spaces is studied in a uniform framework using differential geometry in spaces of constant curvature. It is shown that the...
SmartATMS: A Simulator for Air Traffic Management Systems (1997)
Air Traffic Management Systems (ATMS) of the future will feature Free Flight, in which aircraft choose their own routes, altitude, and speed, and automated conflict resolution methods in which...
SmartATMS: A Simulator for Air Traffic Management Systems (1997)
Yi Ma, George J. Pappas, Claire Tomlin
Air Traffic Management Systems (ATMS) of the future will feature Free Flight, in which aircraft choose their own routes, altitude, and speed, and automated conflict resolution methods in which...
SmartATMS: A Simulator For Air Traffic Management Systems (1997)
Yi Ma, George J. Pappas, Claire Tomlin
Air Traffic Management Systems (ATMS) of the future will feature Free Flight, in which aircraft choose their own routes, altitude, and speed, and automated conflict resolution methods in which...
Motion Recovery From Image Sequences: Discrete Viewpoint vs. Differential Viewpoint (1997)
Yi Ma, Jana Kosecká, Shankar Sastry
The aim of this paper is to explore intrinsic geometric methods of recovering the three dimensional motion of a moving camera from a sequence of images. Generic similarities between the discrete...
SmartATMS : A SIMULATOR FOR AIR TRAFFIC MANAGEMENT SYSTEMS (1997)
Air Traffic Management Systems (ATMS) of the future will feature Free Flight, in which aircraft choose their own routes, altitude, and speed, and automated conflict resolution methods in which...
WWW Search Engines - EECS228A Final Project (1996)
Yi Ma, Sherwin W. Liu, Tze-yau William, Ng Huang
Contents 1 WWW Search Engines - A Survey 2 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Survey of Major Commercial Search Engines . . . . . . . . . 3 1.2.1 AltaVista...
Osteoma in the upper cervical spine with spinal cord compression
Wang, Wenbao, Kong, Linghua, Dong, Ronghua, Zhao, Heyuan, Ma, Yi, Lu, Yun
Osteoma is a common benign tumor. It occurs dominantly at the skull bone. Outside skull osteoma is rare, and primary intra-canal osteoma is extremely rare. To the author’s knowledge, only 14 cases...
Osteoma in the upper cervical spine with spinal cord compression
Wang, Wenbao, Kong, Linghua, Dong, Ronghua, Zhao, Heyuan, Ma, Yi, Lu, Yun
Osteoma is a common benign tumor. It occurs dominantly at the skull bone. Outside skull osteoma is rare, and primary intra-canal osteoma is extremely rare. To the author’s knowledge, only 14 cases...
tie-dyed1 Regulates Carbohydrate Accumulation in Maize Leaves1[C][W][OA]
Braun, David M., Ma, Yi, Inada, Noriko, Muszynski, Michael G., Baker, R. Frank
Acquisition of cell identity requires communication among neighboring cells. To dissect the genetic pathways regulating cell signaling in later leaf development, a screen was performed to identify...
Ma, Yi, Baker, R. Frank, Magallanes-Lundback, Maria, DellaPenna, Dean, Braun, David M.
tie-dyed1 (tdy1) and sucrose export defective1 (sxd1) are recessive maize (Zea mays) mutants with nonclonal chlorotic leaf sectors that hyperaccumulate starch and soluble sugars. In addition, both...
Vision Guided Landing of an Unmanned Air Vehicle
Omid Shakernia, Yi Ma, T. John Koo, Joao Hespanha, S. Shankar Sastry
In this paper, we study the problem of using computer vision as a sensor to control the landing of an Unmanned Air Vehicle (UAV). The vision problem we address is a special case of the general...
Graft-verse-host disease after liver transplantation: A report of two cases and review of literature
Guo, Zhi-Yong, He, Xiao-Shun, Wu, Lin-Wei, Zhu, Xiao-Feng, Ju, Wei-Qiang, Wang, Dong-Ping, ...
Graft-verse-host disease (GVHD) is an uncommon fatal complication following liver transplantation (LTx). In mainland China, only six cases have been reported with a morbidity rate up to 1%-2%....
Ma, Yi, Slewinski, Thomas L., Baker, R. Frank, Braun, David M.
Carbon is partitioned between export from the leaf and retention within the leaf, and this process is essential for all aspects of plant growth and development. In most plants, sucrose is loaded into...