Loading video...

Video Failed to Load

Go Home

Oldies but goldies: R. Keys, Cubic convolution interpolation for digital image processing, 1980. Introduces bicubic interpolation, the most frequently used image interpolation method.

37,829 views • 1 year ago •via X (Twitter)

0 Comments

No comments available

Comments from the original post will appear here

Related Videos

🪽 Hermes just got more creative! —— Risomorphism-1911 — production-grade ASCII rendering pipeline 🎨 Hermes-native ASCII art engine. 4 presets, --scale 1–16, video→animated eikon pipeline for your Herm TUI, quality-gated verdicts, pure-Python backend. Shipped, tested, gallery-stocked. Ready for operator deployment. 🧵 --- What it is Risomorphism-1911 is the ASCII rendering foundation for Hermes ops. Still images, video, animated eikons — all from a single deterministic pipeline. No external binaries. No guesswork. Quality enforced at every step. --- Capabilities - 4 presets: stroke-clarity (high-contrast poster), d30-dense (180-glyph block mode), braille-detail (4× effective resolution), eikon-motion (video pipeline) - Integer scaling: --scale N (1–16) on base 48×24 grid; intermediate grids adapt automatically - Quality gates: automatic verdict — high-contrast (production-safe), low-contrast-garble-risk (auto-reject), braille-dominant (resolution boost detected) - Video pipeline: frame extraction → motion-phase detection → optional motion-compensated interpolation (48 fps) → embedded HTML5 player (no HTTP/CORS) - Edge-aware processing: Laplacian-weighted downsampling + CLAHE preserves structural edges even at scale-16 densities - Pure-Python runtime: Pillow + NumPy only; ffmpeg optional for interpolation step --- CLI surface ascii-pipeline presets # list 4 presets ascii-pipeline diagnose file.txt # quality verdict ascii-pipeline render-preview image.jpg # quick PNG ascii-pipeline render-image \ --input image.jpg \ --preset d30-dense \ --scale 4 \ --out out.txt \ --preview-out out.png \ --diagnostics-out out.json ascii-pipeline build-eikon-from-video \ --video owl.mp4 \ --fps 48 \ --states 3 \ --id owl-smooth --- Scale strategy - Base: 48×24 (Herm avatar) - Scale 1–4: deployable, fast - Scale 8: showcase-ready - Scale 16: poster-sized, heavy, edge-aware mandatory All paths share the same preset pipeline; intermediate grids scale transparently. --- Tech stack - Python 3.11+, Pillow ≥10.0, NumPy ≥1.26 - Zero runtime binary deps - 11-test suite, 100% green - MIT license - Skill documented in SKILL.md with operator guidance --- Gallery (16 panels) - Cosmic pyramid stroke-clarity 192×96 — bold poster contrast - Cosmic pyramid D30 dense 192×96 — 180-glyph atmospheric - Owl animated eikon 48 fps — motion phases, smooth interpolation - Avatar fallback 48×24 — compact, deployable, legible All final-generation assets only. Clean tree: ~47 MB. No intermediates. --- This is the ASCII rendering baseline Hermes ops can rely on. Deterministic. Quality-gated. Production-ready.

Ousia Research (οὐσία)

14,879 views • 4 months ago

NeuRBF: A Neural Fields Representation with Adaptive Radial Basis Functions paper page: present a novel type of neural fields that uses general radial bases for signal representation. State-of-the-art neural fields typically rely on grid-based representations for storing local neural features and N-dimensional linear kernels for interpolating features at continuous query points. The spatial positions of their neural features are fixed on grid nodes and cannot well adapt to target signals. Our method instead builds upon general radial bases with flexible kernel position and shape, which have higher spatial adaptivity and can more closely fit target signals. To further improve the channel-wise capacity of radial basis functions, we propose to compose them with multi-frequency sinusoid functions. This technique extends a radial basis to multiple Fourier radial bases of different frequency bands without requiring extra parameters, facilitating the representation of details. Moreover, by marrying adaptive radial bases with grid-based ones, our hybrid combination inherits both adaptivity and interpolation smoothness. We carefully designed weighting schemes to let radial bases adapt to different types of signals effectively. Our experiments on 2D image and 3D signed distance field representation demonstrate the higher accuracy and compactness of our method than prior arts. When applied to neural radiance field reconstruction, our method achieves state-of-the-art rendering quality, with small model size and comparable training speed.

AK

194,523 views • 3 years ago

Made with GPT Image 2 + Seedance 2.0 by Yapper Prompt: Aurban city street, consistent young adult male same from reference Image (short dark hair, casual clothing), full-body framing, fixed side camera, slight gradual zoom-in, smooth interpolation, high character consistency Timeline Breakdown (15 seconds total) 0.0s – 1.5s | Scene 1 — Introduction young man standing still holding skateboard vertically at his side, relaxed posture, neutral expression, quiet city street background, no motion 1.5s – 3.0s | Scene 2 — Setup he lowers skateboard to ground and steps onto it, slight crouch, arms relaxed for balance, subtle anticipation 3.0s – 5.0s | Scene 3 — Rolling he rides forward smoothly, knees slightly bent, body leaning forward, light motion lines, slight background blur begins 5.0s – 6.5s | Scene 4 — Trick Preparation he crouches deeper, back foot pressing tail, front foot ready, arms widen, tension builds before jump 6.5s – 8.0s | Scene 5 — Ollie Jump he pops the board and jumps, skateboard rises with him, mid-air suspension, knees bent, strong motion lines 8.0s – 9.5s | Scene 6 — Landing he lands cleanly and continues riding, now wearing open casual jacket, expression more confident 9.5s – 11.5s | Scene 7 — Speed Increase he rides faster, leaning slightly, stronger motion blur, dynamic lines emphasize speed 11.5s – 13.5s | Scene 8 — Kickflip he performs kickflip, skateboard flips beneath him mid-air, controlled posture, high energy motion 13.5s – 15.0s | Scene 9 — Final Pose he lands and stabilizes, standing confidently on skateboard, now wearing full tracksuit jacket, relaxed stance, motion settles into still frame Motion & Style Controls motion strength: low (0–3s) medium (3–9s) high (9–13.5s) ease-out (final 1.5s) transitions: smooth interpolation between scenes camera: fixed side tracking + slight zoom-in across full 15s pacing: gradual acceleration then clean slowdown

Zar⭕on

12,089 views • 4 months ago