Normalization

For many specific supported fields, Document AI also returns an entity.normalizedValue in addition to the raw extracted field obtained through the textAnchor of each entity. It normalize the literal text. Normalization often breaks the text value up into sub-fields.

This contain the data in a standardized format to reduce post processing, and enable conversion to whatever format is selected. The mentionText, representing what is literally on the document, is never changed by normalization.

Normalized fields belong to one of the following categories.

Normalized values in the console

In the Google Cloud console, the normalized fields are annotated with G. For example:

Sample normalized field shown in the web application.

Supported processors

Here are the processors and fields that support entity enrichment and normalization:

Processors	Normalized fields
Bank Statement Parser Category Pretrained Solution type Lending Functions OCR, Entity Extraction Release stage General availability Access status Public Full processor details Detailed entry	ending_balance starting_balance statement_date statement_end_date statement_start_date table_item/transaction_deposit table_item/transaction_deposit_date table_item/transaction_withdrawal table_item/transaction_withdrawal_date
US Passport Parser Category Pretrained Solution type Identity Functions OCR, Entity Extraction Release stage General availability Access status Public Full processor details Detailed entry	Date Of Birth Expiration Date Issue Date
Utility Parser Category Pretrained Solution type Procurement Functions OCR, Entity Extraction Release stage General availability Access status Limited Full processor details Detailed entry	adjusted_amount amount_due balance_transfer_amount currency currency_exchange_rate delivery_date due_date invoice_date late_fee_amount line_item/amount line_item/quantity line_item/tax_amount line_item/unit_price net_amount prior_amount_due prior_paid_amount total_amount total_tax_amount
Identity Document Proofing Parser Category Pretrained Solution type Identity Functions OCR, Quality Analysis Release stage Preview Access status Public Full processor details Detailed entry	fraud_signals_image_manipulation fraud_signals_online_duplicate (US only) fraud_signals_is_identity_document fraud_signals_suspicious_words
Pay Slip Parser Category Pretrained Solution type Lending Functions OCR, Entity Extraction Release stage General availability Access status Public Full processor details Detailed entry	bonus bonus_ytd commissions commissions_ytd direct_deposit end_date gross_earnings gross_earnings_ytd holiday holiday_ytd net_pay net_pay_ytd overtime overtime_ytd pay_date regular_pay regular_pay_ytd start_date vacation vacation_ytd
US Driver License Parser Category Pretrained Solution type Identity Functions OCR, Entity Extraction Release stage General availability Access status Public Full processor details Detailed entry	Date Of Birth Expiration Date Issue Date
Expense Parser Category Pretrained Solution type Procurement Functions OCR, Entity Extraction Release stage General availability Access status Public Full processor details Detailed entry	currency total_amount total_tax_amount net_amount receipt_date purchase_time start_date end_date line_item/amount line_item/payment_date line_item/payment_amount
Invoice Parser Category Pretrained Solution type Procurement Functions OCR, Entity Extraction Release stage General availability Access status Public Full processor details Detailed entry	amount_paid_since_last_invoice currency currency_exchange_rate delivery_date due_date freight_amount invoice_date net_amount total_amount total_tax_amount line_item/amount line_item/quantity line_item/unit_price vat/amount vat/tax_amount vat/tax_rate

Extraction processors

Custom extractor supports normalization of all entities with the following Google Cloud common data types: dateTime, currency, money, and number.

Processors	Normalized data types
Custom Extractor Category Extract Solution type Custom Functions OCR, Entity Extraction Release stage General availability Access status Public Full processor details Detailed entry	dateTime as STRING currency as STRING money as google.type.Money number as FLOAT or INTEGER