Dolce Model

[Landers Piechotka]

Figure1: Illustration of slices from a luggage reconstructed using Filtered Back Projection (FBP), Diffusion Posterior Sampling (DPS), and the proposed DOLCE method. Note the remarkable accuracy of the DOLCE reconstructions that preserve fine details.

Limited-Angle Computed Tomography (LACT) is a non-destructive 3D imaging technique used in a variety of applications ranging from security to medicine. The limited angle coverage in LACT is often a dominant source of severe artifacts in the reconstructed images, making it a challenging imaging inverse problem. Diffusion models are a recent class of deep generative models for synthesizing realistic images using image denoisers. In this work, we present Diffusion Probabilistic Limited-Angle CT Reconstruction (DOLCE) as the first framework for integrating conditionally-trained diffusion models and explicit physical measurement models for solving imaging inverse problems. DOLCE achieves the SOTA performance in highly ill-posed LACT by alternating between the data-fidelity and sampling updates of a diffusion model conditioned on the transformed sinogram. We show through extensive experimentation that unlike existing methods, DOLCE can synthesize high-quality and structurally coherent 3D volumes by using only 2D conditionally pre-trained diffusion models. We further show on several challenging real LACT datasets that the same pre-trained DOLCE model achieves the SOTA performance on drastically different types of images.

Figure 4: Visual evaluation of limited angle tomographic reconstruction in body CT scan, where the input measurements are captured respectively from an angular coverage of 60 (top) and 90 (bottom), respectively. PSNR (dB) is indicated at bottom for each reconstruction, measured against the ground truth.

Figure 5: Visual evaluation of limited angle tomographic reconstruction in security check-in luggage CT scan, where the input measurements are captured respectively from an angular coverage of 60 (top) and 90 (bottom), respectively.

Figure 6: Visual results on two different CT images. The error to the ground truth is computed using the conditional mean and the variance corresponds to per-pixel standard deviation. It is evident that the ill-posed nature of the reconstruction task has a direct impact on the diversity of the generated samples, and the variances are highly correlated with the reconstruction errors.

Figure 7: We use a region growing 3D segmentation in all cases and the resulting segmentations are highlighted in color, against a 3D rendering of the reconstructed 2D slices using half of view. Note that our method performs very similar to ground truth in determining the object boundaries compared to RLS and DPS.

The Dolce series is built in the same spirit and attention to detail as the Elegante. The continued commitment to accuracy of pitch and flexible articulation is maintained. These beautiful instruments will allow more aspiring artists than ever the joy of owning and performing on a Pearl handmade flute.

The Vigore options for both the Elegante and Dolce series bring elements of handmade professional flutes into the mid-range budget. Vigore instruments offer a 3K gold alloy lip-plate, B/C# trill key, B Footjoint and D# roller all as standard. Another industry first for Pearl.

Dolce model flutes are fully equipped for advanced players including as a standard configuration, the Forza headjoint enabling superior projection, increased dynamic spectrum, unrivalled clarity of articulation and dazzling rich tone. Largo headjoint option is also available for the Dolce Series which offers a traditional response, with a melodious and sweet character.

Dr. Dolce's research interests include innovations in interprofessional education/practice; creating and testing novel, integrated care delivery models; improving oral-systemic health of vulnerable and underserved populations and communities.

Back in the fall, Dolce and Gabbana was nice enough to invite me to Sicily to experience its newest fragrance, Dolce. While I was there, I sat down with the face of the scent, Kate King. Besides being drop-dead gorgeous and incredibly nice, the Canadian-born model is a genuine beauty lover. Seriously, multiple times during our interview she said, "the process of getting ready is sometimes even more fun for me than actually going out. It's sometimes the highlight of the evening." A girl after my own heart!

"I love to spray perfume right when I get out of the shower, on like damp skin. And then I once I'm leaving the house, I like to spray it on dry clothes. It's a nice double whammy. I spray it on post-moisturizer so like it sinks almost into the moisturizer as well. I do a mist. I'll spray it and walk into it out of the shower. It's a whole operation.... And this perfume is really great for that because it has that light scent. Sometimes heavier scents don't wear as well."

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In a paper presented Oct. 5 at the International Conference on Computer Vision (ICCV) in Paris, France, the team introduced DOLCE, a deep model-based framework designed to overcome the challenges posed by limited-angle computed tomography (LACT). LACT is an imaging technique used in applications ranging from medical diagnostics to security screenings. However, the limited angle coverage in LACT is often a source of severe artifacts, or discrepancies between the reconstructed image and ground truth.

David James Gandy (born 19 February 1980) is an English model and creative director who began his career after winning a televised model-search competition. Widely regarded as the most successful male model of all time,[5] Gandy is both the highest-grossing male model in history as well as the only male to feature on the Forbes list of the world's highest-paid models more than once. The lead male model for Dolce & Gabbana for over a decade, Gandy is now the creative director of his eponymous brand.

In an industry dominated by skinny models, Gandy's muscular build caused some menswear fashion designers to change standards.[6] The increase in his popularity and name recognition resulted in a broad portfolio of magazine covers, editorial photo shoots, interviews and industry awards. He has gone on to participate in fashion-related and personal projects such as writing a blog for British Vogue, writing car reviews for British GQ, mobile app development and charity work.

During the early years of his career, Gandy modelled for a variety of companies, including Shiatzy Chen, 7 for all Mankind, Zara, Marks & Spencer, Gant U.S.A., Hugo Boss, Russell & Bromley, H&M, Carolina Herrera, Massimo Dutti and others.[9] In 2006, he became the face of Dolce & Gabbana, annually starring in their apparel campaigns and fashion shows through 2011, working with female supermodels such as Gemma Ward, Scarlett Johansson, and Naomi Campbell as well as with male models including Noah Mills, Tony Ward, and Adam Senn.[10][11][12]

Gandy is best known for the 2007 advertising campaign for Dolce & Gabbana's fragrance "Light Blue" with Marija Vujovic (shot by photographer Mario Testino), which had 11 million online hits and included a 50-foot billboard of Gandy displayed in Times Square.[13] He modelled for Dolce & Gabbana's 2008 calendar, shot by photographer Mariano Vivanco.[14] Gandy returned as the face of the second "Light Blue" fragrance campaign for 2010, but this time with Anna Jagodzinska.[15] He also made a short promotional film for W Hotels with Helena Christensen called "Away We Stay".[16]

In 2011, the fashion house published David Gandy by Dolce & Gabbana, a 280-page photographic coffee table book of images chronicling their years of collaboration.[17] That same year, Gandy shot four magazine covers and five fashion editorial photoshoots. In 2012, he was featured on 16 magazine covers, appeared on 18 fashion editorials,[18] and modelled for Banana Republic, Lucky Brand Jeans, El Palacio de Hierro, and Marks & Spencer.[19] In addition, Gandy was named the brand ambassador for Johnnie Walker Blue Label.[20]

In 2013, Dolce & Gabbana released the third version of the "Light Blue" fragrance campaign, also featuring Gandy. Once again, Mario Testino filmed the adverts and commercial on location in the island of Capri, southern Italy, but this time with the Italian model Bianca Balti in the female role.[21] Bionda Castana, a British shoe label, released a fashion film featuring Gandy called "David Gandy's Goodnight." In it, he seduces several women who discover later that he has stolen their shoes.[22] On 26 September, Gandy and Jaguar released a short film called "Escapism", which featured Gandy driving models such as the C-Type, the E-Type, the XKSS, and the new F-Type.[23] In November, Marks & Spencer launched their 2013 Christmas advertising campaign, "Magic & Sparkle"; the fairy-tale-themed commercial featured Rosie Huntington-Whiteley with Helena Bonham Carter and Gandy.[24]

In May 2010, Gandy spoke at the University of Oxford Union as part of a panel that included photographer Tony McGee, Victoria & Albert Museum senior curator Claire Wilcox, fashion consultant Frances Card and Dolly Jones, the editor of British Vogue.[13] He released the "David Gandy Men's Style Guide" mobile app in 2010 which offered style and clothing advice to men and which ultimately hit Top 3 in the Lifestyle market.[25]

During the 2012 Summer Olympics closing ceremony, Gandy was the only male to walk the Union Jack-shaped catwalk featuring British fashions, alongside models Naomi Campbell, Kate Moss, Jourdan Dunn, Lily Donaldson, Georgia May Jagger, Karen Elson and Stella Tennant. For the occasion, he wore a gold bespoke suit by British designer Paul Smith.[28] Gandy was invited to the Oxford Union once again on 19 November 2012 with Alex Bilmes, Editor of Esquire to discuss "The importance of men's fashion."[29]

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