Image Processing Apparatus Automatic Refocus Multi-View

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current light field cameras require users to perform extra tapping operations to adjust focus when switching between images, especially when a person is out of focus, which is inconvenient and time-consuming.

Innovation Solution

An image processing apparatus that obtains multi-view image data and sets a reproduction-refocus-mode to automatically generate and display a combined image focused on a designated target, eliminating the need for manual tapping operations by using a control unit to analyze and refocus images based on pre-set modes such as human or landscape modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual tapping operation is used to adjust focus when switching images, then focus can be adjusted, but user operation complexity increases and time is lost

Engineering Contradiction:
Improvefocus adjustment operationVSAvoidtime for focus adjustment
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system performs preliminary analysis during image capture to identify the main subject and pre-calculates refocus parameters. When switching to reproduction mode, the system automatically applies the pre-calculated focus settings, eliminating the need for manual tapping operations and saving user time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system enables self-service focus adjustment by automatically detecting the main subject in multi-view image data and performing refocus processing without user intervention. The apparatus identifies objects, determines focus targets, and generates refocused images autonomously, making the focus adjustment process serve itself rather than requiring manual operation.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If automatic refocus mode is implemented, then ease of operation improves, but device complexity increases

Engineering Contradiction:
Improverefocus operationVSAvoidimage processing system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The image processing unit is designed with multi-functionality, serving both as a general image processor and specifically as an object detector and refocus controller. By making the processing unit universal, the patent avoids adding separate dedicated hardware components for each function, thereby managing device complexity while achieving automatic refocus capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the object detection function, focus target determination function, and refocus processing function into a single integrated image processing unit. This consolidation combines multiple functions that could have been separate components, reducing overall device complexity while maintaining the automatic refocus capability.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9036072B2Image processing apparatus and image processing method
Publication Date: 2015.05.19 CANON KK
  • US9036072B2 patent drawing
  • US9036072B2 patent drawing
  • US9036072B2 patent drawing

AI summary

It is required to carry out a tapping operation on a display screen to adjust the focus in a case where refocus process is performed in shifting to a reproduction mode, so that a user has to do an extra work. An image processing apparatus obtains a multi-view image data obtained by image-capturing in a plurality of viewpoints. A mode indicating information on a target to be focused is set. A combined image data focused on the target is generated by executing image processing to the multi-view image data based on the set mode.