Update concept-ocr.md

Author: sanjeev3

articles/cognitive-services/Computer-vision/concept-ocr.md

@@ -1,7 +1,7 @@
 ---
-title: Reading text - Computer Vision
+title: OCR for images - Computer Vision
 titleSuffix: Azure Cognitive Services
-description: Learn concepts related to the Read feature of the Computer Vision API - usage and limits.
+description: Extract text from in-the-wild and non-document images with a fast and synchronous Computer Vision API.
 services: cognitive-services
 author: PatrickFarley
 manager: nitinme
@@ -14,7 +14,11 @@ ms.date: 09/12/2022
 ms.author: pafarley
 ---
 
-# Computer Vision v4.0 Read OCR (preview)
+# OCR for images
+
+OCR traditionally started as a machine-learning based technique for extracting text from in-the-wild and non-document images like product labels, user generated images, screenshots, street signs, and posters. For several scenarios that including running OCR on single images that are not text-heavy, you need a fast, synchronous API or service. This allows OCR to be embedded in near real-time user experiences to enrich content understanding and follow-up user actions with fast turn-around times.
+
+## What is Computer Vision v4.0 Read OCR (preview)
 
 The new Computer Vision v4.0 Image Analysis REST API preview offers the ability to extract printed or handwritten text from images in a unified performance-enhanced synchronous API that makes it easy to get all image insights including OCR results in a single API operation. The Read OCR engine is built on top of multiple deep learning models supported by universal script-based models for [global language support](./language-support.md).