Archive | Multimedia

01 - TSMC - major IoT applications

TSMC at the 2015 Imagination Summit: optimized silicon IP for the IoT market


A few months ago, Imagination and TSMC joined forces to announce their ongoing collaboration around production of highly-optimized IP subsystems for multiple markets, including smart sensors, connected audio, video analytics, automotive, mobile and beyond. At our 2015 Imagination Summit in Taiwan, we were delighted to welcome on stage Dr. Simon Wang, Senior Director of Business […]

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12-Block-level implementation of face detection on CPU and GPU

Deep dive: OpenCL face detection on PowerVR [part 3]


Imagination’s R&D group has developed a face detection algorithm, which is based on a classifier cascade and is optimized to run on mobile devices comprising a CPU and PowerVR GPU. The algorithm employs several optimizations to improve performance and accuracy. In particular, instead of searching each entire frame for faces, the detector limits its search […]

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11-Components of a modern vision processor

Deep dive: Hardware IP for computer vision [part 2]


Modern mobile application processors are highly heterogeneous, combing a variety of different hardware components optimized for different tasks. As shown in the figure below, a processor designed for vision might include an Image Signal Processor (ISP) for acquiring image sensor data, a vector processor such as a GPU for efficient data-parallel operation on pixels and […]

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1-Baidu offline mobile DNN app

Deep dive: Implementing computer vision with PowerVR [part 1]


Computer vision is the use of computers to extract useful meaning from images, such as those that arise from photographs, video and real-time camera feeds. Thanks to the proliferation of low-power parallel processors, the increasing availability of 3D sensors and an active ecosystem of algorithm developers, it is now possible for many embedded devices to […]

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15-Example of image filtering by means of convolution

Heterogeneous compute case study: image convolution filtering


In a previously published article, I offered a quick guide to writing OpenCL kernels for PowerVR Rogue GPUs; this sets the scene for what follows next: a practical case study that analyzes image convolution kernels written using OpenCL. Many image processing tasks such as blurring, sharpening and edge detection can be implemented by means of […]

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25-Integrating zero-copy flow with Android Camera HAL

The PowerVR Imaging Framework for Android


In my previous article about heterogeneous architectures, I identified memory bandwidth as the main bottleneck for implementing power-efficient algorithms for computer vision. Luckily, Imagination has created an innovative solution designed to address this common issue in mobile and embedded devices – and it comes in the form of the PowerVR Imaging Framework. Introducing the PowerVR […]

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03-Vision software pipeline implemented on top of hardware

Increasing performance and power efficiency in heterogeneous software


Heterogeneous architectures in embedded computing are fast becoming a reality – we indeed see many leading IP and semiconductor companies today building heterogeneous computing hardware. In the article below, I’m going to describe one typical use case for heterogeneous computing and the challenges that result from moving to a heterogeneous programming model. Running a beautification […]

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07-Example NDRange in 2 dimensions comprising 512 work-items

A quick guide to writing OpenCL kernels for PowerVR Rogue GPUs


This article and a follow-up to be published next month introduce OpenCL programming for the PowerVR Rogue architecture. Firstly, I’d like to give you an overview of OpenCL programming fundamentals using a basic program, followed by an explanation of OpenCL execution on Rogue GPUs. This provides the background to understand the programming guidelines for the […]

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Vulkan demo screenshot showing multi pass

Gnomes per second in Vulkan and OpenGL ES


It’s been a while since we first showed off our Vulkan* driver for PowerVR Rogue GPUs. Since then, our PowerVR driver and graphics demo teams have been working hard to synchronize with the spec as it evolves towards its final form. Today we are excited to show you a new demo we have been working […]

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Introduction to Mobile Graphics Workshop


For the first time, Imagination Technologies is pleased to present two one-day mobile graphics workshops for our “Introduction to Mobile Graphics” university module. Get hands-on with PowerVR mobile graphics! These workshops are aimed at educators – specifically those working at universities teaching game development or computer science. The workshops present a course intended to introduce […]

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