Christopher Jaynes
Denver, Colorado, United States
3K followers
500+ connections
About
Technology leader, with a background in AI, software platforms, and human-computer…
Articles by Christopher
Activity
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All New Tour for 2026: High-Performance Workplace Stand: 2M300 | Duration: 20 minutes 🔵 Real-time data insights collected and deployed across…
All New Tour for 2026: High-Performance Workplace Stand: 2M300 | Duration: 20 minutes 🔵 Real-time data insights collected and deployed across…
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We had a great discussion with Craig Durr from Collab Collective. I couldn't be more excited as we craft AI-powered experiences that bring people…
We had a great discussion with Craig Durr from Collab Collective. I couldn't be more excited as we craft AI-powered experiences that bring people…
Shared by Christopher Jaynes
Experience
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Acuity Intelligent Spaces (AIS)
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Education
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University of Massachusetts Amherst
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Activities and Societies: Computer Vision Research Lab member. Advisors: Edward Riseman, Allen Hanson.
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Licenses & Certifications
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PhD
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Publications
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Multi-Projector Common Data Interchange Format v1.0a
VESA
See publication"The purpose of this document is to capture the definition of a data interface for components responsible for blending of graphical content across multiple displays"
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A Joint Illumination and Shape Model for Visual Tracking
CVPR
Visual tracking involves generating an inference about the motion of an object from measured image locations in a video sequence. In this paper we present a unified framework that incorporates shape and illumination in the context of visual tracking. The contribution of the work is twofold. First, we introduce a a multiplicative, low dimensional model of illumination that is defined by a linear combination of a set of smoothly changing basis functions. Secondly, we show that a small number of…
Visual tracking involves generating an inference about the motion of an object from measured image locations in a video sequence. In this paper we present a unified framework that incorporates shape and illumination in the context of visual tracking. The contribution of the work is twofold. First, we introduce a a multiplicative, low dimensional model of illumination that is defined by a linear combination of a set of smoothly changing basis functions. Secondly, we show that a small number of centroids in this new space can be used to represent the illumination conditions existing in the scene. These centroids can be learned from ground truth and are shown to generalize well to other
objects of the same class for the scene. Finally we show how this illumination model can be combined with shape in a probabilistic sampling framework. Results of the joint
shape-illumination model are demonstrated in the context of vehicle and face tracking in challenging conditions.Other authorsSee publication -
The Smart Bookshelf: A study of camera projector scene augmentation of an everyday environment
IEEE’s Workshop of applications of Computer Vision
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A Dynamic Recursive Structure for Intelligent Exploration, Technical Report UUCS-92-036, University of Utah.
University of Utah
See publicationWe suggest a new approach for inspection and reverse engineering applications. In particular, we investigate the use of discrete event dynamic systems (DEDS) to guide and control the active exploration and sensing of mechanical parts for industrial inspection and reverse engineering. We introduce dynamic recursive finite state machines (DRFSM) as a new DEDS tool for utilizing the recursive nature of the mechanical parts under consideration. The proposed framework uses D.RFSM .DEDS .for…
We suggest a new approach for inspection and reverse engineering applications. In particular, we investigate the use of discrete event dynamic systems (DEDS) to guide and control the active exploration and sensing of mechanical parts for industrial inspection and reverse engineering. We introduce dynamic recursive finite state machines (DRFSM) as a new DEDS tool for utilizing the recursive nature of the mechanical parts under consideration. The proposed framework uses D.RFSM .DEDS .for constructing an observer .for exploration and inspection purposes.
Patents
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System and method for multi-user control and media streaming to a shared display
Issued EU EP2962478B1
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System and method for display device discovery
Issued US US9800906B2
See patentA method for creating a list of display devices that are available to receive a video signal from an image generator via network video streaming. One version of the method includes transmitting a display availability packet indicating one or more of the display devices that are available for connection, updating a network display listing module with the information stored in the display availability packet, and transmitting an availability request packet requesting a list of the display devices…
A method for creating a list of display devices that are available to receive a video signal from an image generator via network video streaming. One version of the method includes transmitting a display availability packet indicating one or more of the display devices that are available for connection, updating a network display listing module with the information stored in the display availability packet, and transmitting an availability request packet requesting a list of the display devices that are available to receive the video signal. In response to receiving an availability request packet, a display resource list, indicating the display devices available to receive the video signal, is generated from the metadata contained in the availability request packet.
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Color measurement and correction of multiple display devices
Issued US US9066088B1
See patentA system and method for measuring and then correcting the color response from multiple projectors or display devices so that the devices can generate a color response that is uniform. An area light sensor (such as a commodity camera) is used to measure the color responses of each display and then to derive a model of the color transfer function for each display using a pattern of predetermined areas or regions displayed on each display device.
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Hybrid system for multi-projector geometry calibration
Issued US US7773827B2
See patentA method of calibrating a multi-projector image display system is provided. According to the method, non-parametric calibration data for the display system is recovered and used to generate a non-parametric model of the display system. Local parametric models relating to the display surface of the projection screen are generated and are compared with data points defined by the non-parametric calibration data to identify one or more local errors in the non-parametric calibration data. The local…
A method of calibrating a multi-projector image display system is provided. According to the method, non-parametric calibration data for the display system is recovered and used to generate a non-parametric model of the display system. Local parametric models relating to the display surface of the projection screen are generated and are compared with data points defined by the non-parametric calibration data to identify one or more local errors in the non-parametric calibration data. The local errors in the non-parametric calibration data are converted to data points defined at least in part by the local parametric models and the projectors are operated to project an image on the image projection screen by utilizing a hybrid calibration model comprising data points taken from the non-parametric model and data points taken from one or more local parametric models. Additional embodiments are disclosed and claimed.
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Projector calibration using validated and corrected image fiducials
Issued US US7763836B2
See patentThe present invention relates to projection systems. According to one embodiment the system comprises one or more projectors oriented to project an image on a projection screen and one or more image sensors oriented to acquire an image projected on the projection screen. The projector is operated to project a calibration image comprising one or more image fiducials on the image projection screen. The image sensor acquires the projected calibration image including the image fiducials. The…
The present invention relates to projection systems. According to one embodiment the system comprises one or more projectors oriented to project an image on a projection screen and one or more image sensors oriented to acquire an image projected on the projection screen. The projector is operated to project a calibration image comprising one or more image fiducials on the image projection screen. The image sensor acquires the projected calibration image including the image fiducials. The respective positions of the image fiducials are identified and the identified fiducial positions are validated by applying a parametric model to compare respective ones of the identified fiducial positions with corresponding approximations of the identified fiducial positions. Corrected fiducial positions are generated when a result of one of the comparisons exceeds an error threshold. Additional embodiments are disclosed and claimed.
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Preparing digital images for display utilizing view-dependent texturing
Issued US US7348989B2
See patentA computer program embodied on a computer-readable medium, a computer readable medium storing computer-executable instructions, and a computer data signal embodied in a carrier wave, all for providing a graphic image utilizing view-dependent texture data, including a graphic data code segment for providing data representing a graphic image and a texture data code segment in operational association with the graphic data code segment.
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System and method for image aspect preservation in multiple projector alignment
Issued US US8786788B2
See patentA method is disclosed herein that derives a post-alignment transform that is applied to the input source after the application of an alignment transform to ensure that when each source illuminates the screen, the display is aligned and retains the correct displayed aspect ratio. The transform takes into account the alignment transform and the input source aspect, and then performs a secondary, post-processing transformation that corrects the distortion induced by the alignment transform. This…
A method is disclosed herein that derives a post-alignment transform that is applied to the input source after the application of an alignment transform to ensure that when each source illuminates the screen, the display is aligned and retains the correct displayed aspect ratio. The transform takes into account the alignment transform and the input source aspect, and then performs a secondary, post-processing transformation that corrects the distortion induced by the alignment transform. This aspect-preserving function is a linear transform that maps pixels in the aligned space to the aligned and aspect-correct space and can be applied to the input signal after the first alignment transform, or, in the case where the alignment transform is also linear, transforms can be directly combined to derive a compound multi-projector, aspect preserving transform. In this way, the input signal to the projectors will be aligned as well as retain proper aspect.
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Graphical Indicator of Presence, Identity, and Action for Media Sharing on a Display
US
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