Hú Wèi 胡渭 (1633–1714), zì Fěimíng 朏明, hào Dōngqiáo 東樵, was the principal early-Qīng kǎozhèng historical-geographer and Yìxué critic, from Déqīng 德清 (Húzhōu 湖州, modern Zhèjiāng 浙江). He was a zhūshēng under the Qīng but did not advance further; he lived as a private scholar with strong ties to the Yán Ruòqú 閻若璩 / Wàn Sītóng 萬斯同 / Wàn Sīdà 萬斯大 kǎozhèng circle of late-seventeenth-century Hángzhōu and Yangtze-region scholars.
His major works are: the Yǔ gòng zhuī zhǐ 禹貢錐指 (the great early-Qīng historical-geographic commentary on the Yǔgòng chapter of the Shàngshū), and the Yìtú míng biàn 易圖明辨 (KR1a0138) — the foundational early-Qīng demolition of the Sòng Yì chart-tradition. Both works became Sìkù-canonical and set the methodological standard for high-Qīng kǎozhèng in their respective fields.
The Yìtú míng biàn in ten juàn was completed in Kāngxī bǐngxū 康熙丙戌 = 1706 (the tící is dated to that year; Hú was 74). The work is the principal Qīng-period historical-textual demonstration that the entire Sòng-period Yì chart-and-numerology corpus (the HétúLuòshū binary, Shào Yōng’s prior- and posterior-heaven schemes, the Tài jí tú, the Cān tóng qì alchemical readings, Liú Mù’s 劉牧 Yì shù gōu yǐn tú, Cài Yuándìng’s 蔡元定 / Guān Lǎng yì attribution, etc.) is a Sòng-period invention rather than the canonical inheritance, and that the canonical Yìjīng needs no chart apparatus other than the hexagram-strokes themselves.