GW4200

The Automotive Camera Processor, GW4200, integrates GEO’s patented Geometric processor eWARP® with an advanced High Dynamic Range (HDR) Image Signal Processor (ISP), On-screen Display engine (OSD), Parallel, MIPI, and NTSC/PAL interfaces. The device incorporates a Tensilica® Xtensa processor along with peripheral and serial device interfaces for complete system integration.

The eWARP® processor is GEO’s fourth-generation version of the unique and highly patented geometric processor. The fully programmable geometric processor provides the flexibility and performance to correct complex lens distortion, enable electronic Pan/Tilt/Zoom, and manipulate viewing perspective in real time with sub-frame time latency. The eWARP® technology can create multiple detail views in a single pass generating a video stream with multiple virtual camera views. The eWARP® core also supports complex digital alignment and camera calibration.

The ISP provides High Dynamic Range (HDR) processing, spatial noise reduction, color processing, sharpening, and advanced 3A algorithms. The HDR technology applies different processing to each pixel of each video frame to pull out hidden detail in shadows and highlights while preserving color, local contrast, and natural appearance. The ISP supports HDR sensors that provide a dynamic range of up to 96dB revealing detail in both high-light and low-light areas of the scene simultaneously.

The On-screen Display (OSD) engine blends up to four layers of graphics with the video. The four layers can be a combination of both static and dynamic overlays. The static overlays enable text and logos while dynamic overlays are used for dynamic parking lines, active text, and animations. The OSD can support either RGB or YUV format.

Download GW4200 Product Brief

BLOCK DIAGRAM

GW4200 Block Diagram

Camera Processor

  • Ultra-wide field of view (FOV) lens distortion correction
  • Dynamic Electronic Pan/Tilt/Zoom (ePTZ)
  • Digital calibration for single and multiple camera systems
  • Parallel geometric processing to generate multiple views in a single pass
  • Full alignment, perspective correction, and blending for bird’s eye view or surround view camera systems
  • Very low latency mode (typically 1/6th of a frame)

Advanced Geometric Processor

  • GEO’s proprietary eWARP® geometric processor
  • Highly flexible programmable warp maps for distortion correction
  • Real-time on-the-fly generation of warp maps
  • Support for custom lens design

Image Signal Processor

  • Apical™ ISP with 2MP, 1080p60 sensor support
  • Space variant HDR processing
  • HDR decompanding for high bit-depth image sensors
  • Advanced spatial (2D) noise reduction
  • Zone-based statistics for Auto White Balance and Auto Exposure
  • Non-linear two-dimensional sharpening
  • Dynamic defect correction
  • Lens shading correction

Applications

  • Backup cameras
  • Mirror replacement cameras
  • Surround-view cameras
  • Driver monitoring cameras
  • IP surveillance cameras
  • Wearable cameras

On-screen Display (OSD)

  • Four layers of graphics, one static, three dynamic
  • 256 colors selectable from 24 bpp true color range
  • OSD overlay maximum resolution: 1920 x 1080
  • Anti-aliasing support using color by color alpha
  • Dynamic overlay support using animated static image
  • Refresh rate: 30 fps for dynamic overlay update
  • Lossless compressed bitmaps for high speed reads and reduced storage requirements

Inputs/Outputs, Video Formats

  • Input Interfaces: Dual lane MIPI and 12-bit Parallel
  • Output Interfaces: 24-bit Parallel, Analog NTSC/PAL
  • Input resolution up to 1920 x 1080 at 60fps
  • Input Data Formats:
    ─ 8/10-bit YUV 4:2:2 over 8/10-bit interface
    ─ 8/10/12-bit Bayer RGB
  • Output Data Formats:
    ─ 8/10-bit YUV 4:2:2 over 8/10/16/20-bit interface
    ─ 8/10/12-bit Bayer RGB
    ─ RGB 888 over 24-bit interface
    ─ Analog NTSC/PAL

System Features

  • SPI Master, TWI Bus interfaces
  • UART, JTAG, GPIOs, GPOs

Electrical Specifications

  • Power Supplies: 1.1V ±5%, 1.8V ±5%, 2.5V ±5%
  • Typical power consumption: 178mW for 720p30
  • Automotive Grade Operating Temp.: -40°C to 105°C AEC Q100 Grade2

Package

  • 109-pin TFBGA, 6mm x 6mm x 1.2mm, 0.5mm pitch
  • RoHS/Lead-Free

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GW4200 Block Diagram