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  3. 幼果劣果识别挑战赛
iFlytek ChallengeComputer VisionIntermediateRegistration open

幼果劣果识别挑战赛

A intermediate computer vision competition requiring roughly 12–36 hours for an end-to-end practice run.

Difficulty
Intermediate
Estimated effort
12–36 hours
Registration deadline
Sep 28, 2026
Compute
Free GPU OK
OverviewPreparationSource

Overview

Who this competition fits

适合有计算机视觉图像分类经验、能处理 RGB 果园图像和官方给定实例区域的参赛者。你不需要做目标检测或实例分割,但需要基于 bbox/Polygon Mask 对单颗葡萄幼果完成四分类,并按指定字段生成预测文件。

Read the original official blurb
在阳光玫瑰葡萄套袋前,精准识别并剔除病斑果、裂果等劣果,是阻断袋内微环境病害“交叉感染”、优化空间分配、保障果品高价值的核心农事操作。然而,套袋前阶段的幼果缺乏显著的转色特征,劣果的表观差异极其微弱,传统基于全局特征的视觉检测极易漏检或误判。 本赛题聚焦实例级细粒度分类任务,要求选手在高度密集、严重的“绿对绿”视觉干扰下,精准捕捉面积显著缩小的“明显小… Official track: 计算机视觉. Sponsor: 中国农业大学. Teams entered: 277.

Preparation

From registration to a first submission

  1. 01

    实例级图像分类

  2. 02

    RGB 图像预处理

  3. 03

    Polygon Mask 解析

  4. 04

    COCO-like JSON 读取

  5. 05

    类别不平衡训练

  6. 06

    predictions.csv 生成

Before you commit: 难点在于真实果园光照、枝叶遮挡和密集“绿对绿”背景下,区分外观极相近的正常果与劣果;其中小果、病果、裂果需要依赖局部纹理、形态和相对面积判断。训练数据中劣果类别相对少,而排名按四类 Macro-F1 计算,不能只把正常果分准。

Source

How this page was assembled

Competition information is structured from the official page. Scores are platform estimates for decision support; official rules take precedence.

Official competition page
iFlytek Challenge
Last checked
Sep 3, 2026

Entry assessment

est.
52

Prepare before joining

Overall fit estimate

Beginner fit52/100
Learning value56/100

Confirm eligibility and time commitment before moving into formal preparation.

Entry eligibility needs official confirmation

Open official pageSign in to saveOpen guide

Timeline

Registration opens
Sep 2, 2026
Registration deadline
Sep 28, 2026
Submission deadline
Oct 24, 2026
Competition ends
Oct 24, 2026

Data and review state

Separate what is confirmed from what still needs review. Official rules and deadlines win.

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Source page verifiedMetric confirmedReviewed
Source published
Sep 3, 2026
Published on this site
Sep 23, 2026

Official metric is not published on the iFlytek competition listing; verify scoring on the competition page.