Image processing apparatus and failure detection method for image processing apparatus

A failure detection method is a detection method that relates to a first image processing section configured to perform image processing to image data of a processing target frame among frames that are picturized continuously, and detects a failure by performing failure diagnosis of the first image processing section for each input frame, comprising:

• setting a permission status of the failure diagnosis in the first image processing section to an execution impossible state by detection of the input frame;
• outputting a start timing signal of the failure diagnosis at a timing that the failure diagnosis is started after a predetermined time period elapses after detecting input of the processing target frame, and can be completed during a stopping period of the image processing of the first image processing section;
• outputting a pseudo image processing completion signal before the start timing signal is outputted;
• setting the permission status as an executable state when an image processing completion signal is received from the first image processing section, if the input frame is the processing target frame;
• setting the permission status as an executable state when the pseudo image processing completion signal is received, if the input frame is a processing non-target frame;
• outputting an execution signal of the failure diagnosis when the start timing signal is received, if the permission status is an executable state;
• and
• executing the failure diagnosis of the first image processing section by reception of the execution signal.

A failure detection method is a detection method that relates to a first image processing section configured to perform image processing to image data of a processing target frame among frames that are picturized continuously, and detects a failure by performing failure diagnosis of the first image processing section for each input frame, comprising:

• setting a permission status of the failure diagnosis in the first image processing section as an execution impossible state by detection of the input frame;
• outputting a start timing signal of the failure diagnosis at a timing that the failure diagnosis is started after a predetermined time period elapses after detecting input of the processing target frame, and can be completed during a stopping period of an image processing of the first image processing section;
• setting the permission status as an executable state when an image processing completion signal is received from the first image processing section, if the input frame is a processing target frame;
• setting the permission status as an executable state when the image processing of the input frame is completed in a second image processing section, if the input frame is a processing non-target frame;
• outputting an execution signal of the failure diagnosis when the start timing signal is received, if the permission status is an executable state;
• and
• executing the failure diagnosis of the first image processing section by reception of the execution signal.