← 研踪 PaperTrailarXiv:2609.12272 · v2
Tact: A Zero-Cost, Browser-Based Pipeline for On-Demand Tactile Braille Storybooks
首次提交 2026-09-11 07:07
版本更新 2026-11-12 06:04
雷达观测 2026-11-13 14:16
摘要
Children who learn braille have few illustrated books to read with their fingers, and almost none about the things they ask for. Existing approaches either adapt a published picture book by hand, with a specialist in the loop, or generate a tactile image without the braille page around it. We present Tact, an open system that turns a one-sentence idea into a printable page of braille with a raised picture, in Italian or English, on a consumer 3D printer, with no account and no cost beyond the plastic. Its central idea is to treat the physical page as a constraint on generation: the cell budget of a fixed tactile layout decides how long a story the language model is asked to write, and the story is measured and requested again until it fills two cards. The page itself follows requirements traced to braille standards, the tactile-graphics literature, and formative feedback from a teacher of students with visual impairments and a blind reader who printed and read a page. In an evaluation of 60 stories generated live, every story fit exactly two cards and 57 filled the second card to at least 11 of its 13 rows; a final targeted round recovered 5 of 6 retries of the remaining cases. The picture chosen matched the story's subject on 105 of 105 illustrated pages, against 63 for first-match keyword selection. Uncontracted Italian and English braille, and contracted English produced by liblouis compiled to WebAssembly, matched native liblouis cell for cell on 106 texts, and the interface showed no WCAG 2.2 AA violations. Cards are 150 mm square on a 2 mm plate, printed standing up, and take about 57 g of PETG; test prints are under evaluation.
作者备注：v3: describes the current system; 9 pages, 6 figures, 5 tables. DOI: 10.5281/zenodo.24142788
观测到的版本
相邻记录可能跳过中间版本；首次发现 v2 及以上也会标为版本更新。
v2 · 2026-11-12 06:04 · 最新观测版本
Tact: A Zero-Cost, Browser-Based Pipeline for On-Demand Tactile Braille Storybooks
Children who learn braille have few illustrated books to read with their fingers, and almost none about the things they ask for. Existing approaches either adapt a published picture book by hand, with a specialist in the loop, or generate a tactile image without the braille page around it. We present Tact, an open system that turns a one-sentence idea into a printable page of braille with a raised picture, in Italian or English, on a consumer 3D printer, with no account and no cost beyond the plastic. Its central idea is to treat the physical page as a constraint on generation: the cell budget of a fixed tactile layout decides how long a story the language model is asked to write, and the story is measured and requested again until it fills two cards. The page itself follows requirements traced to braille standards, the tactile-graphics literature, and formative feedback from a teacher of students with visual impairments and a blind reader who printed and read a page. In an evaluation of 60 stories generated live, every story fit exactly two cards and 57 filled the second card to at least 11 of its 13 rows; a final targeted round recovered 5 of 6 retries of the remaining cases. The picture chosen matched the story's subject on 105 of 105 illustrated pages, against 63 for first-match keyword selection. Uncontracted Italian and English braille, and contracted English produced by liblouis compiled to WebAssembly, matched native liblouis cell for cell on 106 texts, and the interface showed no WCAG 2.2 AA violations. Cards are 150 mm square on a 2 mm plate, printed standing up, and take about 57 g of PETG; test prints are under evaluation.
查看此版本解读 →查看此版本原文 ↗