Struct VisionAdvice 

pub struct VisionAdvice {
    pub no_text_layer: bool,
    pub low_confidence_table: bool,
    pub figure: bool,
}

Why a page may be worth sending to a vision model (#624).

A flag with its reasons rather than a bare boolean, because an agent that routes a page somewhere expensive wants to know what it is routing: a scan needs OCR, a chart needs a picture read, and a table we are unsure of needs neither – it needs a second opinion on a structure we already have.

Fields

no_text_layer: bool

The page draws ink but yields no text: a scan, or text drawn as curves.

This is the one signal of the three that is measured rather than promised. On the DocLayNet sample of the round of 24-09-2026 it holds for 25 of 200 pages – twelve per cent – and on those pages nothing is extracted at all: the page carries no usable text layer, which is what makes them worth a vision model rather than a better parser.

low_confidence_table: bool

The page holds a table the table model is unsure of.

ALWAYS FALSE TODAY, and deliberately so rather than guessed at: the learned table structure of #600 is not on master, and the heuristics that find a table there now produce a decision and not a probability. A confidence invented from a heuristic would be a number with nothing behind it, which is the opposite of what this whole flag is for.

figure: bool

The page holds a chart or a figure whose content is not text.

ALWAYS FALSE TODAY. crate::BlockKind has no figure variant – the engine does not detect one – so there is nothing to report. The measurement that says it is worth having is on #574: a figure’s data labels are one of the three shapes we turn into a table, and on those pages our text score is 0.433 against the reference’s 0.526.

Implementations

impl VisionAdvice

pub fn needs_vision(&self) -> bool

Whether any reason holds.

Trait Implementations

impl Clone for VisionAdvice

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for VisionAdvice

impl Debug for VisionAdvice

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for VisionAdvice

fn default() -> Self

Returns the “default value” for a type.

impl Eq for VisionAdvice

impl PartialEq for VisionAdvice

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for VisionAdvice