CAMFE: Camera Front-End Processor Core

Block Diagram

Solution Type: IP Core

End Market: Automotive, Consumer, Industrial, Medical, Military, Test & Measurement

Evaluation Method: OpenCore

Technology: DSP: Filters

Arria Series: Arria 10, Arria V, Arria 10 SoC, Arria V SoC

Cyclone Series: Cyclone IV, Cyclone V, Cyclone V SoC

MAX Series: MAX 10

Stratix Series: Stratix IV, Stratix V

Segments: 

Supported Device Family: 

Solution Type: 

Overview

The CAMFE Core implements a flexible, resource-efficient camera front-end processor that receives raw pixel data from a CMOS or CCD sensor and outputs a video stream ready for display, further processing, or compression. The core first converts the Bayer pattern to an RGB image using an efficient de-mosaicing interpolation filter. The interpolated RGB samples are input to the White Balancing stage, which adjusts color intensities so they are appropriate for reproduction in a display. Under its full configuration, the core subsequently proceeds with further steps essential for optimizing the visual quality of the image, running RGB to YUV color space conversion, then performing Contrast Stretching, Gamma Correction, and finally applying a Sharpening Filter. The CAMFE core does not require a frame buffer and has a small silicon footprint (~590 ALMs). Furthermore, it can process over 150 Mpixels/s even in low-end FPGAs.

Features

  • Image Pipeline: Bayer Filter, RGB-to-YUV, White Balancing, Contrast Stretching, Gamma Correction & Sharpening Filter
  • Low-Power with Low Latency: Requires only 5 lines of buffering and synthesizes to less than 600 ALMs
  • Input/Output Formats: 10bit/sample Bayer Input, 8bit/Sample YUV Output - Up to 2 Mpixels (optionally extendable) resolution
  • Maturity: Robustly verified and production proven

Device Utilization and Performance

CAM-FE reference designs have been evaluated in a variety of technologies. The core synthesizes to about 590 ALMs. It also requires 3 lines of buffering, that are implemented with FPGA memory resources. It is able to run over

Getting Started

Contact CAST at info@cast-inc.com to arrange for a core evaluation

IP Quality Metrics

Basic
Year IP was first released2014
Latest version of Quartus supported15.1
Altera Customer Use
IP has been successfully implemented in production with at least one customerY
Deliverables

Customer deliverables include the following:

  • Design file (encrypted source code or post-synthesis netlist)
  • Simulation model for ModelSim Altera edition
  • Timing and/or layout constraints
  • Testbench or design example
  • Documentation with revision control
  • Readme file
Y
Any additional customer deliverables provided with IP
Software Bit-Accurate Model
Parameterization GUI allowing end user to configure IPN
IP core is enabled for OpenCore Plus SupportY
Source language
Verilog; VHDL
Testbench languageVerilog; VHDL
Software drivers providedN
Driver OS supportNot required
Implementation
User InterfaceOther: BT656-like
IP-XACT Metadata includedN
Verification
Simulators supportedModelsim, Questa, NCSIM
Hardware validated Y. Altera Board Name DK-DEV-4SGX230N
Industry standard compliance testing performed
N
If No, is it planned?N
Interoperability
IP has undergone interoperability testing
N
Interoperability reports available  N

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