.::APHESA SPRL - imaging, electronics and software consulting::.

Image sensors consulting, trainings short courses

Aphesa SPRL provides consulting services for image sensor selection, evaluation, benchmarking and integration for industrial and non-industrial applications.

Aphesa provides consulting for the evaluation and selection of the best image sensor for a specific application and for the design in and integration process of analog or digital image sensors in vision sensors, processing boards and machinery.

We also have standard short courses about High Dynamic Range imaging, the EMVA1288 standard and the basics of image processing.

Integration of CMOS image sensors - Camera Design

Board level design and FPGA design to control and readout CMOS image sensors (line scan and area scan) and to compensate for their defects in real time (defect pixels, DSNU, PRNU, linearity, etc). We can also embed CameraLink, USB2, GigE-Vision and CoaXpress interfaces.

The designs can also include other algorithms like automatic exposure control, binning, histogram, digital gain, color reconstruction, color correction, gamma correction, JPEG compression, sharpening, smoothing, automatic dynamic range control, etc.

More information about camera designs.

Management of custom image sensor designs

Aphesa provides expert project management and design expericence during the complete development phase and feasibility phase of a custom image sensor design. Aphesa also ensures that the specifications agreed with the design house meet the requirements for the application and tests the first silicon by using the EMVA1288 standard in order to prove that the design meets the specification.

Basics of electronic imaging

An introductory, intermediate or more advanced course about the theory and details of operation of electronic image sensors.

High dynamic range image sensors

High dynamic range image sensors are usually not straightforward to use. Depending on the technology, they may suffer from artefacts of various kinds. It is key to understand what a high dynamic range sensor can do and cannot do and if it makes sense at all to use a high dynamic range sensor in a particular application.

Aphesa can also help to deploy software based HDR applications based on multiple exposures, including sensors with automatic exposure bracketing.

An e-book about High Dynamic Range Imaging can be downloaded here: Download. A more detailed version of the document has been turned into a paper book or e-book available from SPIE press.

High speed sensors

High speed image sensors have to use a different sensor architecture. This can provide additional artefacts and requires different data acquisition techniques.

Optimizing image quality

An image sensor is not a digital component but an analog component. It is important to use it with care in order to achieve the highest possible performance.

High temperature sensors

Description and compensation of effects that occur at high temperatures in semi-conductors and in image sensors.

Short Courses

The short course "High dynamic range imaging: sensors and architectures" (SPIE SC967) is tought each year during Electronic Imaging in San Francisco and occasionally during Security, Defense and Sensing in Baltimore or Optics and Photonics in San Diego as well as in company. The course can be organized on a half day, a full day or one and a half days.

This course includes pixel design and pixel performance information as well as sensor and post-processing related topics.

The notes of the course have been published in the form of a book by SPIE press.


The short course "EMVA1288 standard" is occasionally tough during Electronic Imaging in San Francisco as well as in company. This course is organized over a half day. Additionally, a demonstration of an EMVA1288 equipment can be organized.


The short course "Introduction to image processing" gives the basics about image representation and the basic forms of filters used in image processing. The course can be organized from a half day up to three days.


The short course "Introduction to machine vision" provides an introduction to image acquisition, optics, lighting, standard camera interfaces and other processes related to machine vision. It it organized over a half-day.


The short course "Introduction to digital photography, get the most out of your camera" is organized mostly for individuals who want to learn how to use their digital camera or what to know what digital camera they have to buy.

The short courses can be customized and short courses on other topics can be organized. We have for example already given short courses about the basics of optics, the challenges of mobile and laptop imaging, the power consumption optimization of image processing pipelines, etc.

More information

Contact us.



About us

Aphesa develops custom cameras and custom electronics including FPGA code and embedded software. We also provide EMVA1288 test equipment and test services as well as consulting in training in machine vision and imaging technologies. Aphesa works in several markets including industrial, medical, oil&gas and security. The company has been founded by Arnaud Darmont in 2008.