VISUAL SEARCH SYSTEM ARCHITECTURES BASED ON COMPRESSED OR COMPACT DESCRIPTORS

• US 20130216135A1
• Filed: 02/07/2013
• Published: 08/22/2013
• Est. Priority Date: 02/07/2012
• Status: Active Grant

• Current Assignee: STMicroelectronics SRL (STMicroelectronics NV)
• Original Assignee: STMicroelectronics SRL (STMicroelectronics NV)
• Inventors: Pau, Danilo Pietro
• Granted Patent: US 9,258,564 B2
• Time in Patent Office: Days
• US Class Current: 382/190
• CPC Class Codes: G06F 18/23 Clustering techniques
• CPC Class Codes: G06F 2218/08 Feature extraction
• CPC Class Codes: G06V 10/40 Extraction of image or video features
• CPC Class Codes: G06V 10/462 Salient features, e.g. scale invariant feature transforms [SIFT]
• CPC Class Codes: G06V 20/20 in augmented reality scenes
• CPC Class Codes: H04N 19/124 Quantisation
• CPC Class Codes: H04N 19/13 Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
• CPC Class Codes: H04N 19/91 Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Abstract

An embodiment of a visual search system includes at least one imaging device, each imaging device operable to capture a corresponding image, a feature extraction device coupled to each imaging device, each feature extraction device operable to generate feature descriptors from the image received from the corresponding imaging device. A descriptor encoding device is coupled to each feature extraction device and operable to generate compressed feature descriptors from the received feature descriptors. An application processor is coupled to each descriptor encoding device. The application processor is operable to process the received compressed feature descriptors to generate output information as a function of the processed compressed feature descriptors.

Claims

1. A visual search system, comprising:

at least one imaging device, each imaging device operable to capture a corresponding image;

a feature extraction device coupled to each imaging device, each feature extraction device operable to generate feature descriptors from the image received from the corresponding imaging device;

a descriptor encoding device coupled to each feature extraction device and operable to generate compressed feature descriptors from the received feature descriptors; and

an application processor coupled to each descriptor encoding device, the application processor operable to process the received compressed feature descriptors to generate output information as a function of the processed compressed feature descriptors.

2. The system of claim 1 wherein the feature descriptors comprise SIFT descriptors.

3. The method of claim 2 wherein the feature descriptors comprise SHOT descriptors.