Professor at GWU, Developer of @traffickcam and @projectRephoto, mercenary interest in glitter and contemporary art. BlueSky: @pless.bsky.social

Washington DC
Joined June 2009
Robert Pless retweeted
This is what I’ve been up to the last year! Building the largest remote observatory in the world (By quantity of scopes)
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Robert Pless retweeted
The @CVPR AI Art Gallery is now live 🤖🎨 Featuring 115+ artworks using or about computer vision😎 View them here: thecvf-art.com #AIart #CVPR2024
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We are thrilled to share our groundbreaking paper published today in @Nature: "Low Latency Automotive Vision with Event Cameras." Paper: nature.com/articles/s41586-0… Video: youtu.be/dwzGhMQCc4Y Code & Dataset: github.com/uzh-rpg/dagr Frame-based sensors such as the RGB cameras used in the automotive industry face a bandwidth–latency trade-off: higher frame rates reduce perceptual latency but increase bandwidth demands, whereas lower frame rates save bandwidth at the cost of missing vital scene dynamics due to increased perceptual latency (see Fig. 1a of the paper). Event cameras have emerged as alternative vision sensors to address this trade-off. Event cameras measure the changes in intensity asynchronously, offering high temporal resolution and sparsity, markedly reducing bandwidth and latency requirements. Despite these advantages, event-camera-based algorithms are either highly efficient but lag behind image-based ones in accuracy or sacrifice the sparsity and efficiency of events to achieve comparable results. To overcome this, we propose a hybrid event- and frame-based object detector based on Deep Asynchronous GNNs, which preserves the advantages of each modality and thus does not suffer from this trade-off. Our method exploits the high temporal resolution and sparsity of events and the rich but low temporal resolution information in standard images to generate efficient, high-rate object detections, reducing perceptual and computational latency. In doing so, it emulates the slow-fast pathways in biological neural networks and uses them to its advantage. We show that using a 20-Hz RGB camera plus an event camera achieves the same latency as a 5,000-Hz camera with the bandwidth of a 50-Hz camera, i.e., an over 100-fold bandwidth reduction, without compromising accuracy. Our approach paves the way for efficient and robust perception in edge-case scenarios by uncovering the potential of event cameras. We release the code and the dataset (DSEC-Detection) to the public. Kudos to @DanielGehrig6, who, with this work, also received the UZH Annual Award for the Best PhD thesis! **Reference** Daniel Gehrig, Davide Scaramuzza Low Latency Automotive Vision with Event Cameras Nature, May 29, 2024. DOI: 10.1038/s41586-024-07409-w PDF (Open Access): nature.com/articles/s41586-0… Video (Narrated): youtu.be/dwzGhMQCc4Y Code & Datasets: github.com/uzh-rpg/dagr @UZH_en @UZH_Science @UZHspacehub @ERC_Research @nccrrobotics
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Robert Pless retweeted
What do you see? :-)
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Robert Pless retweeted
The GIF compression kind of eats it up in the full crop, but there was a brief green flash captured just above the Moon's limb
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Robert Pless retweeted
As we head into PhD application season, a reminder that I will be admitting new PhD students in the @gwusec lab. A quick thread of the kind of research we are doing, if any of this interests you, but I am also interested in finding students who can push me in new directions. 1/9
📢 📢I am again looking to admit 1-2 PhD students at @gwuengineering in the @gwusec lab who are interested in research related to human factors in security and privacy. We have an extremely collaborative lab with a ton of interesting research directions. Reach out if interested!
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It turns out that sparkling water and raisins are *fascinating*. My daughter and I happened upon this effect playing together in the kitchen a long time ago, and I couldn't help but explore the system more deeply... 1/n arxiv.org/abs/2308.12927
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A low frequency image embedded in an image where the high frequencies capture the attention.
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Robert Pless retweeted
Tree-Ring Watermarks: Fingerprints for Diffusion Images that are Invisible and Robust introduce a novel technique called Tree-Ring Watermarking that robustly fingerprints diffusion model outputs. Unlike existing methods that perform post-hoc modifications to images after sampling, Tree-Ring Watermarking subtly influences the entire sampling process, resulting in a model fingerprint that is invisible to humans. The watermark embeds a pattern into the initial noise vector used for sampling. These patterns are structured in Fourier space so that they are invariant to convolutions, crops, dilations, flips, and rotations. After image generation, the watermark signal is detected by inverting the diffusion process to retrieve the noise vector, which is then checked for the embedded signal. We demonstrate that this technique can be easily applied to arbitrary diffusion models, including text-conditioned Stable Diffusion, as a plug-in with negligible loss in FID. Our watermark is semantically hidden in the image space and is far more robust than watermarking alternatives that are currently deployed paper page: huggingface.co/papers/2305.2…
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Robert Pless retweeted
To me, the human-centered conceptual shift is not *involving* people, but *centering* them. Eg I don't consider my human-in-the-loop papers to be HC: making person a cog in a system is not enough for me to call them "centered." I know several very smart people will disagree. 6/7
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In honor of Women's History Month, we are honoring some of the amazing women in the sorghum industry! Nadia Shakoor is an expert in sorghum genetics at the @DanforthCenter working to highlight the best sorghum traits. Read more at danforthcenter.org/our-work/… #ThisIsSorghum
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New postdoc opportunity in #hcai, people + AI, AI/ethics, and related topics! We've got a new center at UMD on Values-Centered AI, and want *YOU* to apply for our postdoc position. Deadline: Mar 31, 2023 Job ad: research.umd.edu/sites/defau… App form: docs.google.com/forms/d/e/1F… >
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20yrs ago my late uncle, a statistics professor, taught me a lesson about money--and about life--that I'll never forget. It all started when he said he was heading out to pick up his weekly lottery tickets. 🧵
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How many GPUs does it take to run ChatGPT? And how expensive is it for OpenAI? Let’s find out! 🧵🤑
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Imageomics is new field of science combining wildlife conservation efforts, animal ecology research and #MachineLearning. Led by Tanya Berger-Wolf, the @imageomics Institute extracts animal & plant traits from images to track biodiversity and conservation. engineering.osu.edu/news/202…
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Robert Pless retweeted
William Shatner on his Blue Origin flight to space: "It was among the strongest feelings of grief I have ever encountered." variety.com/2022/tv/news/wil…
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Robert Pless retweeted
Love some of these ‘failure’ cases of text-to-3D. “A DSLR photo of a frog wearing sweater.”
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