Computer Graphics

A computer graphics expert witness typically has specific knowledge and expertise in computer science, forensic animation, computer forensics, computer animation, and/or software engineering.

Producing images on a computer is known as computer graphics. Computer graphics images are used for printed material as well as still and moving images for comic strips and animations. Computer graphics are heavily used in electronic games, and are also essential for computer-aided engineering and design.

Computer animation in a courtroom can be a useful tool. A branch of forensic science, forensic animation can create audio-visual accident or criminal activity reconstructions, which can be very useful to explain incidents to jurors.

Cahn Litigation Services is often called upon to locate expert witnesses that can support computer graphics technology matters and can present demonstrative evidence to support a case.

Often, matters requiring computer graphics technology expert witness services involve patent infringement litigation, copyright or trade secret disputes, and forensic animation.

Litigation support by a computer graphics expert witness could include software reverse engineering, expert report, expert opinion, expert testimony, and courtroom testimony. In a high-profile case, or litigation involving a significant financial stake, counsel may request a testifying expert with prior expert witness experience. An expert witness needs to not only have expertise, an expert witness must possess the ability to explain technology and evidence to lay people, such as typical jurors. In addition, clients may seek an industry expert for pre-litigation consulting work.

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Computer Graphics Expert Witness - Sample Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

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The below expert witness bios represent a small fraction of those Computer Graphics experts known by Cahn Litigation Services. These bios are provided to give attorneys a sense of the Computer Graphics landscape.


Expert Witness #235847

This expert holds an MS in Electrical Engineering and brings to the table many years of experience in computer graphics and related technologies. This expert is an internationally known inventor of an award-winning scanner, and consultant in computer graphics. This expert is the author of a best-selling programmers guide to the EGA, VGA and SuperVGA cards and 3D graphics programming. This expert provides design, training, and patent and copyright consulting services in computer graphics, image processing, and image data compression. This expert has worked with graphics processors since before they were called GPU's and has extensive experience analyzing GPU's having peered into the source code on several intellectual property matters. This expert has extensive prior litigation experience including deposition and courtroom testimony.


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Expert Witness #253100

Corrective Imaging Technologies Expert

This expert holds a PhD in Computer Science and serves as Associate Professor of Computer Science. This expert's research is primarily in the areas of computer graphics and image processing but overlaps with computer vision and visualization while also having strong multi-disciplinary collaborations outside of computer science.

This expert also serves as CEO and develops the company's corrective imaging technology that helps a person with visual impairments to see electronic images or text properly. It allows people to see digital content with increased sharpness on displays like tablets, smartphones and laptops without the need for corrective eyewear.

This expert's prior work in image processing has included designing new cameras, developing camera calibration algorithms, new image processing algorithms for improving focus, and bettering image-based 3D reconstruction. This expert has multiple publications in this area and has also published user interface related papers for synthetic displays, virtual reality, and augmented reality. Further, this expert is familiar with the autofocus method and user interface in digital SLR cameras as well as in smartphones.   

This expert has membership in more than 65 program committees including all of the leading conferences in the field, several on-going international multi-disciplinary collaborations (i.e., with experts in computer science, photogrammetry, urban planning, architecture, meteorology, atmospheric sciences, earth sciences, traffic engineering, and more), invited national and international talks and presentations, funding support from multiple entities, and technology transfer (e.g., roles in several startups and multiple patents).

This expert has previous experience as an expert for litigation, including report writing, depositions, and in-court testimony.


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Expert Witness #260937

This expert is a Chair of Computer Science and Electrical & Computer Engineering. This expert was a Distinguished Professor of Computer Science. This expert has published more than 480 papers in the leading conferences and journals in computer graphics, robotics, computational geometry, databases, multimedia, high performance computing and symbolic computation, and received 16 best paper and time of test awards. This expert has also served as a program committee member or program chair of more than 120 leading conferences in these areas. Moreover, this expert has given more than 110 invited or keynote talks at conferences and distinguished lectures at other institutions. This expert has served as a member of the editorial board or guest editor of leading journals in computer graphics, robotics, geometry processing and scientific computing. This expert has won many awards and is a Fellow of ACM, AAAS, AAAI, and IEEE. This expert is a member of SIGGRAPH Academy, and Pioneer of Solid Modeling Association.

This expert has supervised 40 Ph.D. students. This expert's research group has developed many well-known software packages for collision detection, triangulation, GPU-based algorithms, multi-agent simulation, texture compression, solid modeling, solving algebraic systems, etc. These packages have been downloaded by more than 200,000 users worldwide and licensed to more than 60 industrial organizations. This expert's group has actively collaborated with many industrial organizations.

This expert was a co-founder of a developer of physics-based audio simulation technologies.

This expert has filed 12 patents (and granted 9) based on research. This expert has served as an expert witness on many patent infringement and class action lawsuits. This expert has written many expert reports related to patent invalidity and patent infringement and has been deposed a few times.


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Expert Witness #261301

This expert is a senior figure in computer graphics with many years of experience. The fundamental clipping algorithm appears in most computer graphics textbooks. This expert wrote a book on spline curve and surface representations used in geometric modeling algorithms in computer graphics.  This expert has written about 200 technical research papers in the field, many of them about different aspects and kinds of rendering, lighting, shading, ray-tracing, etc.

In addition to extensive research expertise, this expert is a renowned teacher, having been a Presidential Chair Fellow not just once, but two times. This expert is one of only a few computer science faculty who teaches a course whose subject matter is actually about how to teach. These teaching skills are useful in testifying since this expert is adept at being able to explain complex concepts in a simple, easy-to-understand fashion.

This expert is not only a patent holder, but has actually written a patent without the aid of an attorney which was allowed and issued by the USPTO. Thus, this expert is well-versed in the concepts of intellectual property, patent validity, claim construction, etc. This expert’s patent work included opining and being deposed regarding a patent case being heard by the U.S. Patent and Trademark Office's Patent Trial and Appeal Board ("PTAB”).

This expert is Professor of a Graduate School with faculty affiliations in Electrical Engineering and Computer Sciences (EECS), Optometry, Vision Science, Bioengineering, Institute of Design, Center for New Media, Arts Research Center, and Canadian Studies Program.

This expert is a Fellow of the American Academy of Optometry (F.A.A.O.), a Presidential Chair Fellow, a Faculty Fellow in Engineering Ethics and Professional/Social Responsibility, and an ACM Distinguished Speaker.

This expert has published about 180 technical articles and has been a speaker at many international conferences.

This expert’s research interests include computational aesthetics, computational photography, methods for the design and fabrication of contact lenses, computer methods for optometry and ophthalmology, image synthesis, spline curve/surface representations, computer aided geometric design and modeling, CAD/CAM/CIM, interactive and realistic three-dimensional computer graphics, visualization in scientific computing, computer aided cornea modeling and visualization, videokeratography techniques, corneal topographic mapping, medical imaging, virtual environments for surgical simulation, and display technology.


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Expert Witness #263116

This expert is internationally recognized as a leading expert in the area of electronic balloting and vote tabulation. For many years, this expert has observed elections as a scientist, expert witness, poll-worker and committee person in numerous U.S. States. This expert has been qualified by trial judges as an expert witness in computer science, computer and digital forensics, computer security, computer graphics, electronic voting and tabulation systems.

In addition to a Ph.D., this expert holds various degrees in engineering and computer science. This expert is a senior life member of the Association for Computing Machinery, a member of the ACM/IEEE Computer Society, and a senior member of the IEEE.

This expert has provided testimony to the United States House Committee on Science, Space and Technology; the Federal Election Commission; the United States Commission on Civil Rights; the National Institute of Standards and Technology; and the Cabinet of the United Kingdom.


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Expert Witness #217661

This expert holds a Ph.D. in Computer Science, has developed an image processing language, and spent many years researching computer graphics and digital signal processing. This expert designed and developed a 60-Hz vector quantization video codec ASIC using FPGA rapid product prototyping techniques and FPGA applications considered to be among the world's fastest at the time. With significant experience supporting technology-related litigation as an expert witness, this expert has supported multiple Fortune 100 Companies in examining computer graphics, MPEG2, streaming video, handheld touch-sensitive devices, and other graphics processing technologies. This expert has provided expert reports, depositions and testified nearly a dozen times in Federal District Court and before the International Trade Commission.


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Expert Witness #218672

This expert holds a Ph.D. in electrical engineering and computer science and is a Professor in the School of Electrical and Computer Engineering at a technology institute. The creator of a start-up which develops image and video processing software for wireless and IP networking, this expert has been active in the areas of voice and audio processing for many years. This expert is a Fellow of the IEEE, and has received awards for contributions to electrical engineering. This expert has reviewed and analyzed software and hardware designs through source code analysis for pre/post-litigation phases. This expert leads several large technology research programs in the areas of multimedia, networking, telecommunications and wireless technologies and has authored or edited several books. This expert is a frequent consultant to the industry. This expert has served as an expert witness and consultant in several leading intellectual property and patent litigation cases (both ITC 337 proceedings and Federal Circuit), and has been engaged as a litigation expert of graphics processing systems and components. This expert has testified at ten trials and was deposed over forty times.


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